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Develop Health
docsamsung health data sdk the samsung health app has various features to measure user’s health data it allows the user to automatically record a range of activities with a galaxy watch and any connected accessories the user can check their daily steps, heart rate, sleep, nutrition, and many more of their lifestyle metrics managing a healthy lifestyle is easier and simpler with samsung health samsung health data sdk helps to access the health data in the samsung health app an app using the sdk can access selected health data of the samsung health’s data store health data in the samsung health app may come from connected devices, like the galaxy watch or galaxy ring, which automatically transfers its data to a paired mobile phone’s samsung health app samsung health data sdk advantages samsung health's reliable and rich data samsung health saves valuable health data about the user's activities, rest, and healthcare the data collected from the sensors on smartphones or galaxy wearables are particularly reliable step count and sleep data are examples of health metrics measured by device sensors skin temperature and blood oxygen levels are continuously measured while the user sleeps these data are provided with sleep data as associated data the data from samsung health can help apps analyze users' health status more accurately and in-depth high productivity samsung health data sdk's apis are easy to use and intuitive by leveraging these apis, developers can seamlessly integrate the sdk into their own health services while minimizing the effort required for implementation the sdk offers streamlined query for health data utilizing essential filters, apps can easily access the specific health data they require we also provide powerful aggregate functions to each data type these functions enable developers to obtain meaningful values for a particular data type, eliminating the need for complex processing across multiple sources for example, total steps from multiple devices data security and privacy samsung health takes care in ensuring that the user's data remains secure at all times furthermore, when it comes to samsung devices, users' data is secured by knox access to each data is carefully regulated, not only through user permissions but also in line with our sdk service policies read data types provided the samsung health data sdk supports various read data types activity summary active calories burned goal active time goal blood glucose blood oxygen blood pressure body composition body temperature energy score exercise with exercise location floors climbed heart rate nutrition nutrition goal skin temperature sleep sleep goal steps step goal water intake water intake goal user profile write data types provided the samsung health data sdk supports various write data types blood glucose blood oxygen blood pressure body composition body temperature exercise with exercise location floors climbed heart rate nutrition sleep water intake restrictions samsung health data sdk requires samsung health v6 30 2 or later version installation samsung health runs on devices with android 10 api level 29 or above it is available on all samsung smartphones and also non-samsung android smartphones the sdk doesn’t support an emulator measured data by samsung health data sdk is for fitness and wellness only, not for the diagnosis or treatment of any medical condition sdk download you can download the samsung health data sdk and check its content to use the sdk's apis in your app, please also check the app development process samsung health data sdk v1 0 0 1 81 mb experience samsung health data sdk get hands-on experience with the samsung health data sdk using our interactive code labs head over to code lab to get started code labsamsung health data sdk, samsung health, galaxy wearables build a health app with steps from samsung health code labsamsung health data sdk, samsung health, galaxy wearables access rich sleep data from samsung health more content
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codelaboptimize game performance with adaptive performance in unity objective learn how to optimize the performance of a demo game on samsung galaxy devices using the adaptive performance in unity the adaptive performance package provides you with tools to properly adjust you’re game and improve its overall game performance overview samsung devices include android dynamic performance framework adpf support, which provides an interface between game applications and devices, helping developers optimize their games this feature allows unity developers to use it through the unity package manager and further customize their game content using c# scripting the latest version of adaptive performance, now uses new android apis that gather information from samsung hardware to provide more detailed insights into the device's thermal components and cpu optimization adaptive performance includes both the android provider and simulator provider the android provider uses the adpf apis and is supported on devices running android 12 or higher the simulator provider enables the simulation of key adpf features on desktop environments for development and testing purposes this code lab focuses on using the android provider thermal throttling mobile devices lack active cooling systems, causing temperatures to rise this triggers a warning to the unity subsystems, which lowers hardware demand to control heat and avoid performance degradation the ideal goal is to make performance stable with low temperature adaptive performance, primarily for performance and quality balance management, can help achieve this thermal warning the warning system implemented in adpf can trigger both internal unity systems and developer-defined behaviors, such as disabling custom scripts and shaders scalers it also provides you with the option to adjust the game's quality to maintain stable performance at different warning levels with adaptive performance enabled, the game's fps becomes more stable and consistently higher over time the adaptive performance in unity provides developers with scalers that affect various aspects of the game frame rate resolution batching level of detail lod lookup texture lut multisample anti-aliasing msaa shadow cascade shadow distance shadow map resolution shadow quality sorting transparency view distance physics decals layer culling these general scalers can be used to scale the content based on your settings in the editor however, you may also create custom scalers that integrate with your own systems for instance, your own scalers can disable cpu-expensive scripts from running when thermal warnings are reached the latest version of adaptive performance, v5 0, includes new additions to the scalers decal scaler changes the draw distance of decals it controls how far a decal can be before not being rendered layer culling scaler adjusts the distance that expensive layers, such as transparency or water, when they start being culled it’s a useful scaler for scenes with more expensive shader calculations in every frame, unity calculates how all the physics in a level interacts with everything else, such as when the ball is dropping to the floor physics scaler adjusts the frequency at which this calculation is performed a lower frequency means fewer cpu calculations per second set up your environment you will need the following unity editor version 2022 3 visual studio or any source code editor supported samsung galaxy device remote test lab if physical device is not available requirements samsung account java runtime environment jre 7 or later with java web start internet environment where port 2600 is available sample code here is a sample project for you to start coding in this code lab download it and start your learning experience! adaptive performance sample code 903 96 mb demo game the sample project contains a demo game named boat attack it is an open-source demo game provided by unity it has the following features triangles 800,000 vertices 771,000 shadow casters 133 start your project after downloading the sample project, follow the steps to open your project launch the unity hub click projects > open after locating the unzipped project folder, you can open it in unity editor it initially downloads the needed resources for your project open benchmark_island-flythrough scene found under assets notethe project was tested in unity 2022 3 it is recommended to use this version in this code lab set up adaptive performance components in window > package manager > adaptive performance, you can check if the adaptive performance is already included in the project go to edit > project settings > adaptive performance enable the initialize adaptive performance on startup and select android provider enable the scalers by going to adaptive performance > android > indexer settings check the scaler settings and just use the default values add adaptive performance script to your project you are going to use a script that contains examples of the adaptive performance api code it gives you access to the frame time information, thermal information, and cpu/gpu bottlenecks this script adjusts the performance based on the device's thermal state, allowing longer game time by reducing in-game demands download the adaptive performance script adaptiveperformanceconroller cs 6 0 kb simply drag and drop the script into assets folder create a new object and attach the script to the object change the frame rate based on thermal warnings get to know about thermal warnings throttling warnings allow you to know when your game is about to be forcibly throttled and have sections of lag and lowered frame rate adaptive performance provides these thermal alerts that allow you to take control and adjust settings before the performance downgrades check the registered event handler to trigger thermal status ithermalstatus thermalstatus thermalevent then, check thermalmetrics information in the handler name description value nowarning no warning is the normal warning level during standard thermal state 0 throttlingimminent if throttling is imminent, the application should perform adjustments to avoid thermal throttling 1 throttling if the application is in the throttling state, it should make adjustments to go back to normal temperature levels 2 temperaturelevel 0 0 ~ 1 0 current normalized temperature level in the range of [0, 1] a value of 0 means standard operation temperature and the device is not in a throttling state a value of 1 means that the maximum temperature of the device is reached and the device is going into or is already in throttling state temperaturetrend -1 0 ~ 1 0 current normalized temperature trend in the range of [-1, 1] a value of 1 describes a rapid increase in temperature a value of 0 describes a constant temperature a value of -1 describes a rapid decrease in temperature it takes at least 10s until the temperature trend may reflect any changes adjust the frame rate in the adaptiveperformancecontroller cs, the following code is responsible for changing the frame rate depending on the current thermal alert void onthermalevent thermalmetrics ev { switch ev warninglevel { case warninglevel nowarning application targetframerate = 60; break; case warninglevel throttlingimminent application targetframerate = 30; break; case warninglevel throttling application targetframerate = 15; break; } } change the quality settings the performance bottleneck api informs you via an enum value if there is a bottleneck so you can adjust the workload iadaptiveperformance performancestatus performancemetrics performancebottleneck namespace unityengine adaptiveperformance { public enum performancebottleneck { unknown = 0, cpu = 1, gpu = 2, targetframerate = 3 } } in the adaptiveperformancecontroller cs script, the code below is responsible for controlling the lod of the models depending on the performance bottleneck a model with multiple lod is a prime example of a quality setting that can heavily affect the games performance lowering it lessens the load on the gpu, frees up resources, and eventually prevents thermal throttling change the quality setting by adjusting lod in real time by using the performancebottleneck api switch ap performancestatus performancemetrics performancebottleneck // iadaptiveperformance performancestatus performancemetrics performancebottleneck { case performancebottleneck gpu debug logformat "[adp] performancebottleneck gpu " ; lowerlod ; break; case performancebottleneck cpu debug logformat "[adp] performancebottleneck cpu " ; break; case performancebottleneck targetframerate debug logformat "[adp] performancebottleneck targetframerate " ; break; case performancebottleneck unknown debug logformat "[adp] performancebottleneck unknown" ; break; } create a custom scaler to create custom scalers, you need to create a new class that inherits from adaptiveperformancescaler the adaptive performance package includes this class that can be added to the adaptive performance framework, which adjusts quality settings based on unity's thermal settings download this custom scaler to control the texture quality of the demo game texturescaler cs 1 17 kb simply drag and drop the downloaded file into the project test using device simulator in unity the device simulator in unity allows you to test out adaptive performance functionality without a physical mobile device go to window > general > device simulator go to edit > project settings > adaptive performance enable the initialize adaptive performance on startup and select device simulator provider in the device simulator, you can try to send thermal warnings and create artificial bottlenecks to test different behaviors of the demo game the visual scripts display the scalers available and show if it is enabled enabling a specific scaler means that the adaptive performance w you can override the scalers to test their impact on the demo game's performance and scene some scalers may not affect the scene but may improve the performance in the long run build and launch the apk go to file > build settings connect your galaxy device enable development build and select scripts only build option make sure that the autoconnect profiler is enabled to check the profiler in unity and measure the performance in build to device, click the patch button to install or update the apk in your device test using unity profiler unity has also introduced a new module in its profiler that allows you to monitor the scalers changes and extract frame time information to your editor the profiler allows you to get real-time information from the adaptive performance plugin navigate to windows > analysis > profiler set the play mode to your connected galaxy device once connected, you can analyze the frame time stats and check the state of the scalers during runtime scalers in this profiler are reacting to the thermal trend and are being raised or lowered in response to the thermal warning observe the scalers when enabled or disabled texture scaler the texture scaler is the custom script to lower the texture quality based on thermal levels when enabled and maxed out, the texture fidelity has been lowered this lowers the gpu load and memory usage lod scaler you may notice a subtle change in the appearance of the rocks, trees, and umbrella models this is due to the adaptation of the lod bias that determines which version of the models to use as the thermal levels rise, lower poly models are selected to reduce the number of triangles rendered this reduces the gpu load and minimizes thermal build-up shadow map resolution shadow map resolution creates a blurring effect on the shadows which incidentally lowers the performance load required to render them basically, lower shadow detail means fewer gpu calculations, which lead to less heat build-up check the game performance using gpuwatch gpuwatch is a profiling tool for observing gpu activity in your app the following are the common information shown by the gpuwatch fps counters current average cpu and gpu load cpu load gpu load it is very helpful in profiling your game during the post-development stage so you can further optimize to enable gpuwatch on your galaxy device you can easily reposition the gpuwatch widgets on the screen by enabling unlock widgets under the notification menu of gpuwatch you’re done! congratulations! you have successfully achieved the goal of this code lab now, you can improve and optimize your android game on samsung galaxy devices using adaptive performance in unity by learning about scalers, thermal warnings, and bottleneck apis the performance of your mobile games can be pushed further by utilizing these tools if you face any trouble, you may download this file adaptive performance complete project 1 0 gb to learn more, visit developer samsung com/galaxy-gamedev
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codelabcustomize flex window using good lock plugin on watch face studio objective learn to customize a clock face for your flex window using watch face studio's good lock plugin called clockface overview watch face studio wfs is a graphic authoring tool that enables you to create watch faces for wear os smartwatches using good lock plugins, you can also create a cover screen design for galaxy z flip4 and z flip5 wfs good lock plugins enable watch face studio to create customization elements for a specific good lock application good lock is a family of applications that allows users to customize various aspects of their galaxy mobile device, such as the lock screen, home screen, and clock face clockface plugin, one of the good lock plugins, allows you to create clock faces that you can use on a mobile device through the clockface module of good lock app clockface enables users to customize the clock face on their mobile device's lock screen, always on display aod , and cover screen it is part of the good lock family of applications for detailed information, see good lock plugin set up your environment you will need the following watch face studio latest version clockface plugin installation file galaxy z flip5 with good lock app installed clockface module installed within good lock app sample project here is a sample project for this code lab download it and start your learning experience! flex window customization sample project 473 53 kb initial setup from the main menu ☰, choose preferences go to the plugins tab and click the install plugin button you can click the download plugin button to download the installation file locate the installation file and click ok after adding clockface plugin to plugins list install the good lock app in galaxy z flip5 then, download and install the clockface module from good lock app start your project to load the sample project in watch face studio click open project locate the downloaded file, then click open the sample project is a premade watch face design with preloaded images, including a background, trees, clouds, and more it also contains analog hands and a progress bar to represent step count in the style tab, you can see the watch face's different theme color palette you can see other options for background, analog hands, and color when you click the customization editor button noteto learn how to create different watch face designs in one project, see customize styles of a watch face create a rectangular clock face design from a circular watch face the usual shape of a watch face design that you can create in watch face studio is circular using the clockface plugin, you can set the project type as coverscreen, which allows the creation of rectangular designs for galaxy z flip4 and z flip5's cover screen the sample project is a circular watch face to change the design to rectangle click the watch face studio logo to go back to the dashboard click the three dots menu next to the sample project you added to show additional options select create project from enter your project name, keep coverscreen as type, and select galaxy z flip5 for size some features of a watch face design made for a smartwatch, such as showing step count data, might not work for the flex window it is suggested to delete unsupported features when you modify the project after clicking ok in the dialog box, you can now see a new project with a rectangle canvas right-click on the step_count group and choose delete to remove all components related to step count redesign the project for flex window you need to adjust some components of the newly created project to fit with the flex window to do this resize all images as a group select the background group hold down the shift key move the mouse pointer over one of the corner handles, then click and drag the mouse to resize the images or, you can change the dimension's width and height of the background group in the properties tab adjust the x and y placements to reposition the images replace analog hands with digital clock depending on your preference, you can display analog hands or digital clocks on your flex window but for this code lab activity, change the time display with a digital clock remove the time group, which includes analog hands and an index click add component > digital clock > time in text appearance properties, change font type and size edit the tag expression in text field with [hour_1_12_z] [min_z] to only show the current time in 12-hour format and minutes to indicate whether the time is am or pm, add a text component and adjust font type and size in text field, enter the [ampm] tag as value lastly, move the month component anywhere in the canvas and adjust its text appearance display the clock design on flex window to install and display the cover screen design on your flex window, you need to connect the galaxy z flip5 to the computer using usb or wifi in watch face studio, select project > run on device select the connected galaxy z flip5 you want to test with if your device is not detected automatically, click scan devices to see your device or enter its ip address manually by clicking the + button open the good lock app on your device and click the clockface module choose cover screen as clock style and select your clock design choose the edit button to customize the style or tap the check button to apply the design you're done! congratulations! you have successfully achieved the goal of this code lab now, you can customize a clock face for your flex window by yourself! if you face any trouble, you may download this file flex window customization complete project 420 44 kb to learn more about watch face studio, visit developer samsung com/watch-face-studio
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codelabintegrate in-app payment into merchant apps using samsung pay sdk objective learn how to integrate in-app payment with your merchant apps using samsung pay sdk partnership request to use the samsung pay sdk, you must become an official samsung partner once done, you can fully utilize this code lab you can learn more about the partnership process by visiting samsung pay page, here in samsung developers notein accordance with the applicable samsung partner agreements, this code lab covers setup and use of the samsung pay sdk for purposes of integrating the samsung pay app with partner apps the use cases and corresponding code samples included are representative examples only and should not be construed as either recommended or required overview the samsung pay sdk is an application framework for integrating selected samsung pay features with android-based partner apps on samsung devices in-app payment, which allows customers to pay for products and services with samsung pay, is one of the operations supported alongside push provisioning and open favorite cards partner apps can leverage the samsung pay sdk to perform different operations ― push provisioning and open favorite cards for issuers; in-app payment for merchants key components include partner app app developed by merchant or issuer for making online or offline payments and provisioning payment cards through samsung pay samsung pay sdk sdk integrated into the partner app for direct communication with samsung pay samsung pay app pay app with which the samsung pay sdk communicates financial network comprises the payment gateways, acquirers, card associations, and issuers that participate in transaction processing under agreement with the merchant most common use case for in-app payment the merchant app allows the user to make payments with samsung pay upon user selection of the samsung pay option, the merchant app calls the apis included in the samsung pay sdk to initiate a transaction with the samsung pay app the samsung pay app responds with the tokenized payment information necessary to complete the transaction the merchant app forwards this payment information to the designated payment gateway pg , either directly through the merchant's web server or indirectly via the samsung-pg interface server for standard transaction processing for more detailed information, see the official samsung pay sdk programming guide set up your environment you will need the following samsung wallet or samsung pay app depending on the country a compatible mobile device with android marshmallow 6 0 or android api level 23 or later android os versions samsung pay sdk android studio latest version recommended java se development kit jdk 11 or later sample code here is a sample code for you to start coding in this code lab download it and start your learning experience! in-app payment sample code 1 90 mb integrate the samsung pay sdk with your app the following steps comprise the general process for integrating the samsung pay sdk with your app sign up for the samsung pay developers site by clicking sign up and register your samsung account or create it if you don't already have one , then sign in follow the on-screen instructions for adding your app and creating a new service to generate the service id you'll need to use in your project download the samsung pay sdk by going to resources > sdk download add the samsung pay sdk jar file samsungpay jar to your android project using android studio or file explorer develop your partner app with the required api calls and callbacks for samsung pay integration upload a release version of your app to the samsung pay developers site for approval upon samsung approval, publish your partner app to the google play store and samsung galaxy apps notethe service id is already provided in the sample code for this code lab however, this service id is for test purposes only and cannot be used for an actual application or service using the provided test service id enforces your app to use the fixed properties below service id 0915499788d6493aa3a038 package name com test beta pay app version 1 0/ 1 or higher start your project after downloading the sample code containing the project files, in android studio click open to open existing project locate the downloaded android project sampleonlinepay from the directory and click ok add the samsungpaysdk_2 18 00_release jar file from the sdk's libs folder to your android project's libs folder go to gradle scripts > build gradle module sampleonlinepay app and enter the following to the dependencies block implementation files 'libs/samsungpaysdk_2 18 00_release jar' if the target sdk version is 30 android 11 or the r-os , you must include the following <queries> element in androidmanifest xml <queries> <package android name="com samsung android spay" /> </queries> configure the api level as of sdk version 1 4, enhanced version control management has been introduced to improve backward compatibility and handle api dependency from country and service type for example, if a partner integrates the latest sdk—for instance, api level 2 18—but continues to use apis based on level 1 4, the partner app remains compatible with samsung pay apps supporting api level 1 4 without upgrading the samsung pay app implement the following in application tag of androidmanifest xml <meta-data android name="spay_sdk_api_level" android value="2 17" /> // most recent sdk version is recommended to leverage the latest apis add an xml layout and modify the activity next, replace the xml layout in res > layout > activity_main xml this layout shows the sample item information such as image, name, and price <?xml version="1 0" encoding="utf-8"?> <layout xmlns tools="http //schemas android com/tools" xmlns app="http //schemas android com/apk/res-auto" xmlns android="http //schemas android com/apk/res/android"> <androidx constraintlayout widget constraintlayout android layout_width="match_parent" android layout_height="match_parent" tools context=" mainactivity"> <imageview android id="@+id/imageview" android layout_width="350dp" android layout_height="184dp" android layout_margintop="100dp" app layout_constraintend_toendof="parent" app layout_constraintstart_tostartof="parent" app layout_constrainttop_totopof="parent" android src="@drawable/galaxy_s23_ultra_image"/> <imageview android id="@+id/samsung_pay_button" android layout_width="wrap_content" android layout_height="75dp" app layout_constraintbottom_tobottomof="parent" app layout_constraintend_toendof="parent" app layout_constraintstart_tostartof="parent" android src="@drawable/pay_rectangular_full_screen_black" android visibility="invisible"/> <textview android id="@+id/textview" android layout_width="wrap_content" android layout_height="wrap_content" android layout_margintop="10dp" android text="galaxy s23 ultra" android textsize="16sp" android textstyle="bold" app layout_constraintend_toendof="parent" app layout_constraintstart_tostartof="parent" app layout_constrainttop_tobottomof="@+id/imageview" /> <textview android id="@+id/textview2" android layout_width="wrap_content" android layout_height="wrap_content" android layout_margintop="5dp" android text="$1,199 00" android textsize="14sp" app layout_constraintend_toendof="parent" app layout_constrainthorizontal_bias="0 517" app layout_constraintstart_tostartof="parent" app layout_constrainttop_tobottomof="@+id/textview" /> </androidx constraintlayout widget constraintlayout> </layout> since you added a data binding layout, you need to inflate the xml file differently go to java > com > test > beta > pay > mainactivity kt, and declare the databinding variable in the mainactivity class private lateinit var databinding activitymainbinding replace the standard setcontentview declaration with the data binding version inside the oncreate method databinding = databindingutil setcontentview this, r layout activity_main check samsung pay status in the mainactivity, create the samsungpay instance to determine if the device supports samsung pay and if the samsung pay button can be displayed as the user's payment option, check the samsung pay status samsungpay requires a valid partnerinfo from the merchant app, which consists of service id and service type during onboarding, the samsung pay developers site assigns the service id and service type in the mainactivity, declare the partnerinfo variable private lateinit var partnerinfo partnerinfo then, set the partnerinfo in the oncreate method val bundle = bundle bundle putstring spaysdk partner_service_type, spaysdk servicetype inapp_payment tostring partnerinfo = partnerinfo service_id, bundle after setting partnerinfo, call the getsamsungpaystatus method via updatesamsungpaybutton function inside the oncreate method updatesamsungpaybutton the getsamsungpaystatus method of the samsungpay class must be called before using any other feature in the samsung pay sdk write the updatesamsungpaybutton function as follows private fun updatesamsungpaybutton { val samsungpay = samsungpay this, partnerinfo samsungpay getsamsungpaystatus object statuslistener { override fun onsuccess status int, bundle bundle { when status { spaysdk spay_ready -> { databinding samsungpaybutton visibility = view visible // perform your operation } spaysdk spay_not_ready -> { // samsung pay is supported but not fully ready // if extra_error_reason is error_spay_app_need_to_update, // call gotoupdatepage // if extra_error_reason is error_spay_setup_not_completed, // call activatesamsungpay databinding samsungpaybutton visibility = view invisible } spaysdk spay_not_allowed_temporally -> { // if extra_error_reason is error_spay_connected_with_external_display, // guide user to disconnect it databinding samsungpaybutton visibility = view invisible } spaysdk spay_not_supported -> { databinding samsungpaybutton visibility = view invisible } else -> databinding samsungpaybutton visibility = view invisible } } override fun onfail errorcode int, bundle bundle { databinding samsungpaybutton visibility = view invisible toast maketext applicationcontext, "getsamsungpaystatus fail", toast length_short show } } } tipfor the list and detailed definition of status codes such as spay_ready, refer to checking samsung pay status noteas of sdk version 1 5, if the device has android lollipop 5 1 android api level 22 or earlier versions, the getsamsungpaystatus api method returns a spay_not supported status code merchant apps using sdk 1 4 or earlier must check their app's android version activate the samsung pay app the samsungpay class provides an api method called activatesamsungpay to activate the samsung pay app on the same device where the partner app is running if the getsamsungpaystatus returns spay_not_ready and the extra_error_reason is error_spay_setup_not_complete, the partner app needs to display an appropriate message to the user then, call activatesamsungpay to launch samsung pay app and request the user to sign in in updatesamsungpaybutton function, add the code to call activatesamsungpay method via doactivatesamsungpay function when the status is spay_not_ready // if extra_error_reason is error_spay_setup_not_completed, // call activatesamsungpay val extraerror = bundle getint samsungpay extra_error_reason if extraerror == samsungpay error_spay_setup_not_completed { doactivatesamsungpay spaysdk servicetype inapp_payment tostring } create the doactivatesamsungpay function as below private fun doactivatesamsungpay servicetype string { val bundle = bundle bundle putstring samsungpay partner_service_type, servicetype val partnerinfo = partnerinfo service_id, bundle val samsungpay = samsungpay this, partnerinfo samsungpay activatesamsungpay } create a transaction request upon successfully initializing the samsungpay class, the merchant app should create a transaction request with payment information samsung pay offers two types of online payment sheet―normal and custom the normal payment sheet has fixed display items ― items, tax, and shipping the custom payment sheet offers more dynamic controls for customizing the ui, together with additional customer order and payment data for this code lab, use the custom payment sheet and populate the fields in customsheetpaymentinfo to initiate a payment transaction /* * make user's transaction details * the merchant app should send paymentinfo to samsung pay via the applicable samsung pay sdk api method for the operation * being invoked * upon successful user authentication, samsung pay returns the "payment info" structure and the result string * the result string is forwarded to the pg for transaction completion and will vary based on the requirements of the pg used * the code example below illustrates how to populate payment information in each field of the paymentinfo class */ private fun maketransactiondetailswithsheet customsheetpaymentinfo? { val brandlist = brandlist val extrapaymentinfo = bundle val customsheet = customsheet customsheet addcontrol makeamountcontrol return customsheetpaymentinfo builder setmerchantid "123456" setmerchantname "sample merchant" setordernumber "amz007mar" // if you want to enter address, please refer to the javadoc // reference/com/samsung/android/sdk/samsungpay/v2/payment/sheet/addresscontrol html setaddressinpaymentsheet customsheetpaymentinfo addressinpaymentsheet do_not_show setallowedcardbrands brandlist setcardholdernameenabled true setrecurringenabled false setcustomsheet customsheet setextrapaymentinfo extrapaymentinfo build } private fun makeamountcontrol amountboxcontrol { val amountboxcontrol = amountboxcontrol amount_control_id, "usd" amountboxcontrol additem product_item_id, "item", 1199 00, "" amountboxcontrol additem product_tax_id, "tax", 5 0, "" amountboxcontrol additem product_shipping_id, "shipping", 1 0, "" amountboxcontrol setamounttotal 1205 00, amountconstants format_total_price_only return amountboxcontrol } private val brandlist arraylist<spaysdk brand> get { val brandlist = arraylist<spaysdk brand> brandlist add spaysdk brand visa brandlist add spaysdk brand mastercard brandlist add spaysdk brand americanexpress brandlist add spaysdk brand discover return brandlist } request payment with a custom payment sheet the startinapppaywithcustomsheet method of the paymentmanager class is applied to request payment using a custom payment sheet in samsung pay when you call the startinapppaywithcustomsheet method, a custom payment sheet is displayed on the merchant app screen from there, the user can select a registered card for payment and change the billing and shipping addresses as necessary the payment sheet lasts for 5 minutes after calling the api if the time limit expires, the transaction fails in the mainactivity class, declare the paymentmanager variable private lateinit var paymentmanager paymentmanager then, in oncreate , set an onclicklistener method before calling the updatesamsungpaybutton function to trigger the startinapppaywithcustomsheet function when the samsungpaybutton is clicked databinding samsungpaybutton setonclicklistener { startinapppaywithcustomsheet } lastly, create a function to call startinapppaywithcustomsheet method of the paymentmanager class /* * paymentmanager startinapppaywithcustomsheet is a method to request online in-app payment with samsung pay * partner app can use this method to make in-app purchase using samsung pay from their * application with custom payment sheet */ private fun startinapppaywithcustomsheet { paymentmanager = paymentmanager applicationcontext, partnerinfo paymentmanager startinapppaywithcustomsheet maketransactiondetailswithsheet , transactioninfolistener } /* * customsheettransactioninfolistener is for listening callback events of online in-app custom sheet payment * this is invoked when card is changed by the user on the custom payment sheet, * and also with the success or failure of online in-app payment */ private val transactioninfolistener paymentmanager customsheettransactioninfolistener = object paymentmanager customsheettransactioninfolistener { // this callback is received when the user changes card on the custom payment sheet in samsung pay override fun oncardinfoupdated selectedcardinfo cardinfo, customsheet customsheet { /* * called when the user changes card in samsung pay * newly selected cardinfo is passed and partner app can update transaction amount based on new card if needed * call updatesheet method this is mandatory */ paymentmanager updatesheet customsheet } override fun onsuccess response customsheetpaymentinfo, paymentcredential string, extrapaymentdata bundle { /* * you will receive the payloads shown below in paymentcredential parameter * the output paymentcredential structure varies depending on the pg you're using and the integration model direct, indirect with samsung */ toast maketext applicationcontext, "onsuccess ", toast length_short show } // this callback is received when the online payment transaction has failed override fun onfailure errorcode int, errordata bundle? { toast maketext applicationcontext, "onfailure ", toast length_short show } } run the app after building the apk, you can run the sample merchant app and see how it connects to samsung pay upon clicking the button at the bottom of the screen to thoroughly test the sample app, you must add at least one card to the samsung pay app you're done! congratulations! you have successfully achieved the goal of this code lab now, you can integrate in-app payment with your app by yourself! if you face any trouble, you may download this file in-app payment complete code 2 26 mb to learn more about developing apps for samsung pay devices, visit developer samsung com/pay
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codelabmeasure skin temperature on galaxy watch objective create a health app for galaxy watch, operating on wear os powered by samsung, utilizing samsung health sensor sdk to obtain skin temperature measurement results overview samsung health sensor sdk provides means of accessing and tracking health information contained in the health data storage its tracking service gives raw and processed sensor data such as accelerometer and body composition data sent by the samsung bioactive sensor the active sensor of galaxy watch runs powerful health sensors such as photoplethysmogram ppg , electrocardiogram ecg , bioelectrical impedance analysis bia , sweat loss, and spo2 see samsung health sensor sdk descriptions for detailed information set up your environment you will need the following galaxy watch5 or newer with updated health platform android studio latest version recommended java se development kit jdk 17 or later sample code here is a sample code for you to start coding in this code lab download it and start your learning experience! skin temperature tracking sample code 156 kb connect your galaxy watch to wi-fi go to settings > connection > wi-fi and make sure that the wi-fi is enabled from the list of available wi-fi networks, choose and connect to the same one as your pc turn on developer mode and adjust its settings on your watch, go to settings > about watch > software and tap on software version 5 times upon successful activation of developer mode, a toast message displays as on the image below afterwards, developer options is going to be visible under settings tap developer options and enable the following options adb debugging in developer options, search for wireless debugging turn on wireless debugging check always allow on this network, and tap allow go back to developer options, and click turn off automatic wi-fi notethere may be differences in settings depending on your one ui version connect your galaxy watch to android studio go to settings > developer options > wireless debugging and choose pair new device take note of the wi-fi pairing code, ip address & port in android studio, go to terminal and type adb pair <ip address> <port> <wi-fi pairing code> when prompted, tap always allow from this computer to allow debugging after successfully pairing, type adb connect <ip address of your watch> <port> upon successful connection, you can see the following message in android studio’s terminal connected to <ip address of your watch> now, you can run the app directly on your watch turn on developer mode for health platform swipe down from the top of the screen to open the quick panel, then tap the settings icon scroll down and tap apps select health platform quckly tap health platform for about 10 times developer mode is enabled when [dev mode] appears below health platform noteyou can disable developer mode by quickly tapping the health platform until [dev mode] disappears start your project in android studio and click open to open an existing project locate the downloaded android project skintemptracking from the directory and click ok check tracking capabilities to track the data with the sdk, the device must support skin temperature, like the galaxy watch5 skin temperature tracking can work in 2 modes batching and on-demand the tracker type for batching is healthtrackertype skin_temperature_continuous and healthtrackertype skin_temperature_on_demand for on-demand in this code lab, you are going to use on-demand tracker in connectionmanager java, navigate to isskintemperatureavailable function use a provided healthtrackingservice object to create a healthtrackercapability instance, and send it to checkavailabletrackers function, and assign its result to availabletrackers list gettrackingcapability returns a healthtrackercapability instance in healthtrackingservice object healthtrackingservicehealthtrackingservice initiates a connection to samsung's health tracking service and provides a healthtracker instance to track a healthtrackertype public healthtrackercapability gettrackingcapability provide a healthtrackercapability instance to get a supporting healthtrackertype list /****************************************************************************************** * [practice 1] check capabilities to confirm skin temperature availability * * ---------------------------------------------------------------------------------------- * * hint replace todo 1 with java code * get healthtrackercapability object from healthtrackingservice * send the object to checkavailabletrackers ******************************************************************************************/ boolean isskintemperatureavailable healthtrackingservice healthtrackingservice { if healthtrackingservice == null return false; @suppresswarnings "unusedassignment" list<healthtrackertype> availabletrackers = null; //"todo 1" if availabletrackers == null return false; else return availabletrackers contains healthtrackertype skin_temperature_on_demand ; } initialization of skin temperature tracker before starting the measurement, initialize the skin temperature tracker by creating a healthtracker object in skintemperaturelistener java, navigate to setskintemperaturetracker using the provided healthtrackingservice object, create an instance of the healthtracker class of skin_temperature_on_demand type and assign it to the skintemperaturetracker object gethealthtracker with healthtrackertype skin_temperature_on_demand as an argument creates a healthtracker instance after a single measurement, the tracker should be stopped when using on-demand measurement for continuous measurement, use healthtrackertype skin_temperature_continuous healthtrackingservicehealthtrackingservice initiates a connection to samsung's health tracking service and provides a healthtracker instance to track a healthtrackertype healthtracker gethealthtracker healthtrackertype healthtrackertype create a healthtracker instance for the given healthtrackertype /******************************************************************************************* * [practice 2] setup skin temperature tracker * * ---------------------------------------------------------------------------------------- * * hint replace todo 2 with java code * initialize skintemperaturetracker with proper samsung health sensor sdk functionality * call gethealthtracker on healthtrackingservice object * use healthtrackertype skin_temperature_on_demand as an argument ******************************************************************************************/ void setskintemperaturetracker healthtrackingservice healthtrackingservice { //"todo 2" } starting and stopping the tracker for the client app to obtain the data through the sdk, set a listener method on healthtracker this method is called every time there is new data healthtrackerhealthtracker enables an application to set an event listener and get tracking data for a specific healthtrackertype public void seteventlistener healthtracker trackereventlistener listener set an event listener to the healthtracker instance void starttracker { if !ishandlerrunning { skintemperaturehandler post -> skintemperaturetracker seteventlistener skintemperaturelistener ; ishandlerrunning = true; } } after the finished measurement, the on-demand tracker should be stopped you can do that by unsetting the event listener from healthtracker healthtrackerhealthtracker enables an application to set an event listener and get tracking data for a specific healthtrackertype public void unseteventlistener stop the registered event listener to this healthtracker instance void stoptracker { if skintemperaturetracker != null skintemperaturetracker unseteventlistener ; skintemperaturehandler removecallbacksandmessages null ; ishandlerrunning = false; } process obtained skin temperature data the answer from the healthtrackingservice is asynchronous the skintemperaturelistener receives the callback containing a data point with all the required information follow the steps below to get skin temperature data in skintemperaturelistener java, go to the updateskintemperature function and read skin temperature data from datapoint get skin temperature status using datapoint api key valuekey skintemperatureset status get skin temperature value using datapoint api key valuekey skintemperatureset object_temperature get ambient temperature value using datapoint api key valuekey skintemperatureset ambient_temperature datapointdatapoint provides a map of valuekey and value with a timestamp public <t>t getvalue valuekey<t>type get data value for the given key private final healthtracker trackereventlistener skintemperaturelistener = new healthtracker trackereventlistener { @override public void ondatareceived @nonnull list<datapoint> list { stoptracker ; for datapoint data list { updateskintemperature data ; } } }; /******************************************************************************************* * [practice 3] read values from datapoint object * - get skin temperature status value * - get wrist skin temperature value - it's named "object_temperature" in the library * - get ambient temperature value ------------------------------------------------------------------------------------------- * - hint replace todo 3 with parts of code * 1 remove skintemperaturestatus invalid_measurement and * set status from 'datapoint' object using data getvalue valuekey skintemperatureset status * * if status is 'skintemperaturestatus successful_measurement' then * 2 set wristskintemperaturevalue from 'datapoint' object using * data getvalue valuekey skintemperatureset object_temperature ; * 3 set ambienttemperaturevalue from 'datapoint' object using * data getvalue valuekey skintemperatureset ambient_temperature ; ******************************************************************************************/ void updateskintemperature datapoint data { final int status = skintemperaturestatus invalid_measurement; float wristskintemperaturevalue = 0; float ambienttemperaturevalue = 0; //"todo 3" trackerdatasubject notifyskintemperaturetrackerobservers status, ambienttemperaturevalue, wristskintemperaturevalue ; } run unit tests for your convenience, you can find an additional unit tests package this lets you verify your code changes even without using a physical watch see the instruction below on how to run unit tests right-click on com samsung health skintemptracking test and execute run 'tests in 'com samsung health skintemptracking" command if you have completed all the tasks correctly, you can see all the unit tests pass successfully run the app after building the apk, you can run the application on a connected device to measure your skin temperature once the app starts, allow the app to receive skin temperature data afterwards, the screen shows the application tap the measure button to get your wrist skin and ambient temperature you're done! congratulations! you have successfully achieved the goal of this code lab now, you can create a health app that measures skin temperature by yourself! if you are having trouble, you may download this file skin temperature tracking complete code 155 5 kb to learn more about samsung health, visit developer samsung com/health
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foldables and large screens new opportunities in the mobile experience design guidelines design guidelines boost your apps’ value withfoldable & large screen optimization your galaxy becomes simpler, more convenient and better optimized with one ui. one ui provides meaningful innovations and improves your everyday life, ensuring that you adapt in the ever-changing world. also, one ui continues to evolve to bring your joyful experiences to life. code labs all tags all tags galaxy z develop a widget for flex window 25 mins start gamedev galaxy z implement flex mode into a unity game 30 mins start watch face studio galaxy z customize flex window using good lock plugin on watch face studio 20 mins start galaxy z implement multi-window picture-in-picture on a video player 20 mins start gamedev galaxy z implement flex mode on an unreal engine game 120 mins start samsung internet galaxy z develop a camera web app on foldables 30 mins start galaxy z implement app continuity and optimize large screen ui of a gallery app 40 mins start galaxy z configure an app to enable drag and drop in multi-window 30 mins start galaxy z implement flex mode on a video player 30 mins start rich ui optimized for large screens! foldable devices can provide richer experiences than phones. learn how to optimize your app's ui for large screen devices in our newly updated one ui guide. read more if you don’t have any galaxy z devices try remote test lab! remote control test lab provides a foldable device for testing app even when you don’t onw one. check out the video tutorial on the remote test lab to max out your knowledge! video thumbanil blogs go to blog search this wide range of blog articles for tips and valuable know-how in developing apps related to foldable & large screen optimization. galaxy z tech docs get detailed info on the galaxy z (foldable) in the following tech documents. overview the new form factor is not the only thing notable in foldable phones. it opens new opportunities in the mobile experience. app continuity app continuity refers to the capability of an app to seamlessly restore the user state when it receives a configuration change. multi-window the ability to have multiple windows open simultaneously benefits from larger screen real estate. flex mode when your phon is partially folded, it will go into flex mode. apps will reorient to fit the screen, letting you sending messages. ux and ui considerations by considering new layouts and navigation patterns, app developers can explore opportunities to build greater experence. testing the how your app reacts to optimized ui layout, app continuity, multi-active window and flex mode. community forums & tech support ask question and find answers at forums. if you need development support, submit a support request. developer forum tech support our partners meet samsung’s partners already making use of ui optimized for large screens.
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codelabbuild a health app with steps from samsung health and its connected wearables objective create a step counter application for android devices, utilizing the samsung health data sdk to read steps data collected by the samsung health app overview samsung health offers various features to monitor user's health data such as your steps activity throughout the day samsung health data sdk helps to access the health data in the samsung health app an app using the sdk can access selected health data of the samsung health’s data store health data in the samsung health app may come from connected devices, like the galaxy watch or galaxy ring, which automatically transfers its data to a paired mobile phone’s samsung health app in this code lab, you are going to learn how to get daily steps collected by samsung health you're going to know how to access the total value of steps taken within a day and the aggregated steps for each hour of the day in addition, you can know how to apply local time filtering for your query for more details, refer to the samsung health data sdk page set up your environment you will need the following android studio latest version recommended java se development kit jdk 17 or later android mobile device compatible with the latest samsung health version sample code here is a sample code for you to start coding in this code lab download it and start your learning experience! health data steps sample code 652 2 kb set up your android device click on the following links to set up your android device enable developer options run apps on a hardware device activate samsung health's developer mode to enable the developer mode in the samsung health app, follow these steps in the top-right, tap the ⋮ button of samsung health select settings > about samsung health tap the version number quickly 10 times or more if you are successful, the developer mode samsung health data sdk button is displayed select developer mode samsung health data sdk agree with notice of usage of the developer mode for reading data from samsung health with samsung health data sdk, turn on the developer mode for data read now, you can test your app with samsung health notethe samsung health developer mode is only intended for testing or debugging your application it is not for application users start your project in android studio click open to open existing project locate the downloaded android project mysteps from the directory and click ok check gradle settings before using the samsung health data sdk library, certain configurations are necessary these steps are already applied in the sample code provided the samsung-health-data-api-1 0 0 aar library is added to the app\libs folder, and included as a dependency in the module-level build gradle file in the same file, the gson library is also added as a dependency dependencies { implementation filetree mapof "dir" to "libs", "include" to listof "* aar" implementation libs gson } next, the kotlin-parcelize plugin is applied plugins { alias "libs plugins parcelize" } lastly, the following entries are also added in the gradle > libs version toml file [versions] gson = "2 13 1" parcelize = "2 2 0" [libraries] gson = { module = "com google code gson gson", version ref = "gson" } [plugins] parcelize = { id = "org jetbrains kotlin plugin parcelize", version ref = "parcelize" } request steps data permissions noteyou can access data from samsung health by obtaining a healthdatastore object using the healthdataservice getstore appcontext method to read data from samsung health, you need to acquire proper permissions from the app user each health data type has its own permission additionally, separate permissions are required for reading and writing operations the user must grant the following permissions in the app steps for read operation steps_goal for read operation when launching the application, it is important to verify if the necessary permissions have already been granted this can be achieved through the library function healthdatastore getgrantedpermissions permissions set<permission> set<permission> here, use the following permissions permission defines the permission unit required to secure the user's consent for sharing their data with samsung health's data store companion function of datatype datatype, accesstype accesstype creates a permission for datatype e g datatypes steps and accesstype accesstype read or accesstype write go to app > kotlin+java > com samsung health mysteps domain in the arepermissionsgrantedusecase kt file, navigate to the permissions object and create the permissions needed to read the steps and steps goal data from samsung health /********************************************************************************* * [practice 1] create permission set to receive step data * * make permissions set down below contain two permission * com samsung android sdk health data permission permission objects of types * - 'datatypes steps' of 'accesstype read' * - 'datatypes steps_goal of 'accesstype read' * ---------------------------------------------------------------------------------- * * - hint * use permission of function to define the permission types *********************************************************************************/ object permissions { val permissions = setof<permission> // todo define the permissions here } if the permissions are not granted, invoke an ask-for-permissions view to do it, use the special function provided by the library where context is an activity’s context val result = healthdatastore requestpermissions permissions, context after invoking the function, the app user sees the following pop-up upon starting the application if the user does not consent to read their steps data, the application displays a message explaining why this authorization is vital for the app to function properly notepermissions can be granted or revoked at any time by tapping the more button on the toolbar and selecting the connect to samsung health tab once the user grants the necessary permissions, you can proceed with retrieving the step data from the healthdatastore retrieve steps data from samsung health understand how to retrieve step goal a step goal is a target number of steps set by an individual to achieve within a day this can be set in the samsung health app by navigating to steps > settings > set target you can set the value separately for each day in this code lab, only the last step goal is retrieved from samsung health check the readlaststepgoal function in readstepgoalfromtodayusecase kt to know how to retrieve the most recent step goal from samsung health @throws healthdataexception class private suspend fun readlaststepgoal int { val startdate = localdate now val enddate = localdate now plusdays 1 log i tag, "startdate $startdate; enddate $enddate" val readrequest = datatype stepsgoaltype last requestbuilder setlocaldatefilter localdatefilter of startdate, enddate build val result = healthdatastore aggregatedata readrequest var stepgoal = 0 result datalist foreach { data -> log i tag, "step goal ${data value}" log i tag, "data starttime ${data starttime}" log i tag, "data endtime ${data endtime}" data value? let { stepgoal = it } } return stepgoal } the function readlaststepgoal retrieves the last step goal from samsung health first, it filters the data by setting the startdate and enddate to the current date and the next day respectively using a localdatefilter next, the function builds a request using the datatype stepsgoaltype last constant to retrieve the last step goal set by the user and specifies the date range using the setlocaldatefilter method the request is then executed by calling the aggregatedata function of the healthdatastore once the data is fetched, the function loops through each entry and extracts the step goal value finally, it returns the step goal value as the result collect today's total number of steps to verify if the user reached their today's step goal, get the number of steps taken from midnight until the current time perform this calculation by creating a generic function that calculates the total number of steps within a specified time period then, set the start time as the beginning of today and the end time as the current timestamp total is an aggregate operation that obtains the sum of steps to achieve this task, use the following healthdatastore getgrantedpermissions permissions set<permission> set containsall elements collection<@unsafevariance e> aggregaterequest it represents a request for an aggregation query over time it is used to run aggregate operations like total and last for healthdatapoint localtimefilter filter with a localdatetime type time interval as a condition the time interval is represented as local date time companion function of starttime localdatetime?, endtime localdatetime? creates a localtimefilter with starttime and endtime aggregaterequest localtimebuilder<t> provides a convenient and safe way to set the fields and create an aggregaterequest setlocaltimefilter localtimefilter localtimefilter sets the local time filter of the request in readstepsfromatimerangeusecase kt, navigate to the function getaggregaterequestbuilder and filter today's steps /************************************************************************************ * [practice 2] create a read request builder to obtain steps from given time range * collecting steps from a period of time is an aggregate operation which * sums up all the steps from that period * in this exercise you need to * - create a localtimefilter with starttime and endtime for the aggregaterequest * - apply the filter to the aggregaterequest * ------------------------------------------------------------------------------------ * * - hint * use localtimefilter of to create a time filter for the request * use setlocaltimefilter to apply the filter ************************************************************************************/ @throws healthdataexception class fun getaggregaterequestbuilder starttime localdatetime, endtime localdatetime aggregaterequest<long> { // todo create localtimefilter here val aggregaterequest = datatype stepstype total requestbuilder // todo apply the filter here build return aggregaterequest } a list of aggregated data is received as a result of the request in this example, it's a single-item list containing the total number of steps taken from the beginning of the day to the present moment with the given code below, you can iterate over the list and check if the value of the analyzed aggregateddata element is not null if so, assign it to the stepcount variable otherwise, the code returns a value of 0, indicating that no steps were recorded val result = healthdatastore aggregatedata aggregaterequest var stepcount = 0l result datalist foreach { aggregateddata -> aggregateddata value? let { stepcount = it } } obtain the number of steps for each hour after setting up the functions to fetch steps data from samsung health and aggregating the data to calculate the total step count, you need to obtain the total number of steps for each hour and visualize the steps the user took during every hour of the day to achieve this, utilize the aggregate operation sum of steps , but this time incorporate additional filtering grouping by hour aggregaterequest it represents a request for an aggregation query over time it is used to run aggregate operations like total and last on healthdatapoint localtimefilter filter with a localdatetime type time interval as a condition the time interval is represented as local date time companion function of starttime localdatetime?, endtime localdatetime? creates a localtimefilter with starttime and endtime localtimegroup grouped time interval with a pair of localtimegroupunit and multiplier this means that the grouping is applied to intervals as much as multiplier in local date and time companion function of timegroupunit localtimegroupunit, multiplier int creates a localtimegroup with the given timegroupunit and multiplier localtimebuilder<t> provides a convenient and safe way to set the fields and create an aggregaterequest setlocaltimefilterwithgroup localtimefilter localtimefilter?, localtimegroup localtimegroup? sets the local time filter with the local time group of the request in readgroupedstepsbytimerangeusecase kt, navigate to the getaggregaterequestbuilder function obtain the total number of steps from every hour by creating two variables one to specify the time range using localtimefilter of and another to define the grouping using localtimegroup of by combining these variables, you can set an aggregate request that retrieves the desired data /********************************************************************************* * [practice 3] apply a filter to the aggregate request so that the results are * within a time range and grouped by hour * in this exercise you need to * - apply localtimefilterwithgroup to the request builder *---------------------------------------------------------------------------------- * - hint * * use setlocaltimefilterwithgroup function to apply time and grouping filters * use localtimefilter and localtimegroup as the function's arguments *********************************************************************************/ @throws healthdataexception class fun getaggregaterequestbuilder startdatetime localdatetime, enddatetime localdatetime, localtimegroupunit localtimegroupunit, multiplier int aggregaterequest<long> { val localtimefilter = localtimefilter of startdatetime, enddatetime val localtimegroup = localtimegroup of localtimegroupunit, multiplier val aggregaterequest = datatype stepstype total requestbuilder // todo apply the filter here build return aggregaterequest } to apply local time filtering with the given group, use the localtimefilter and localtimegroup classes the localtimegroup consists of a localtimegroupunit, which in this case is hourly, and a multiplier you can also group by other time periods such as minutely, daily, weekly, monthly, and yearly since you want data from every hour period, use a multiplier value of 1 the returned data from the request is a list, where each item represents a grouped value healthdatastore only returns values for periods when the step count is greater than zero the code below shows that by iterating over the returned datalist and adding non-null groupeddata to the output steplist, you can obtain the aggregated value of steps for each hour of the day val result = healthdatastore aggregatedata aggregaterequest val steplist arraylist<groupeddata> = arraylist result datalist foreach { aggregateddata -> var stepcount = 0l aggregateddata value? let { stepcount = it } val starttime = aggregateddata starttime atzone zoneid systemdefault val groupeddata = groupeddata stepcount, starttime tolocaldatetime steplist add groupeddata } noteexception handling every usage of samsung health data sdk might throw a healthdataexception such exceptions are thrown from every backend function up the call stack and handled in viewmodel the healthdataexception has four possible subclasses an example is resolvableplatformexception, which means it can be automatically resolved by invoking resolvableplatformexception resolve activitycontext the reason for such an exception is, for instance, when samsung health app is not installed on the device resolving it results in opening samsung health page in the app store for more details, refer to the documentation run unit tests for your convenience, an additional unit tests package is provided this package lets you verify your code changes even without using a physical device right-click on com samsung health mysteps test and select run 'tests in 'com samsung health mysteps' if you completed all the tasks correctly, you can see that all the unit tests passed successfully run the app after building the apk, you can run the app on a connected device to read your steps data once the app starts, allow all permissions to read steps data from samsung health and tap done afterwards, the app's main screen appears, displaying the daily summary of steps taken, target, and steps by hour swipe down to sync the latest data from samsung health you can scroll down to steps by hour to see the hourly breakdown you're done! congratulations! you have successfully achieved the goal of this code lab now, you can create a mobile health app that reads samsung health steps count data by yourself! if you are having trouble, you may download this file health data steps complete code 651 7 kb to learn more about samsung health, visit developer samsung com/health
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codelabdevelop a secure blockchain app objective learn how to create your own decentralized applications dapp using samsung blockchain keystore sdk overview integrating with new technology like blockchain is a burden to most developers for this reason, we offer a way to interwork with samsung blockchain keystore sdk with less effort developers can easily become a dapp developer with our samsung blockchain keystore sdk decentralized applications dapps run and store data on the blockchain network instead of a central server dapps offer increased security and reliability compared to centralized applications moreover, it provides a simple method for in-app payments using cryptocurrency samsung blockchain keystore sdk is used to obtain account information and sign a transaction to transfer cryptocurrency or execute smart contract execution in this code lab, you can learn how to integrate samsung blockchain keystore sdk into your app and how to implement blockchain basic concepts such as account information and signing transactions set up your environment you will need the following java se development kit 8 or later android studio latest version recommended mobile phone which supports samsung blockchain sample code here is a sample code for you to start coding in this code lab download it and start your learning experience! keystore sdk sample code 897 12 kb enable developer mode the developer mode helps developers test the samsung blockchain keystore in developer mode, app id verification is bypassed, so samsung blockchain keystore apis will be enabled to activate developer mode on your mobile device, follow the steps below navigate through settings > biometrics and security > samsung blockchain keystore and click about blockchain keystore tap the samsung blockchain keystore app name quickly, ten times or more if succeeded, developer mode will show noteonly a limited number of devices can be activated for one test app open project file after downloading the sample code, open the given android application project this project is a simple comments dapp based on ethereum ropsten test network it retrieves comments data from smart contract, displays them on the screen, and makes a transaction to execute smart contract function to post user’s comment in the next steps, you can get an account address and execute dapp service with blockchain keystore and you can see the result of successful dapp execution set the app id here, you don’t need to set the application id to use samsung blockchain keystore sdk instead, you must enable developer mode as described previously for the release version of your android app, in your android manifest file, add a metadata with a name as scw_app_id and a value as the app id issued by samsung blockchain keystore team samsung blockchain keystore aar file will read this value when your android app is initialized and help your android app connect to samsung blockchain keystore <manifest xmlns android="http //schemas android com/apk/res/android" package="com samsung android sdk coldwallet test" android versioncode="1" android versionname="1 0"> <application> <meta-data android name="scw_app_id" android value= <!-- put your app id here --> /> </application> </manifest> import samsung blockchain keystore sdk library into the project the sdk library is located at aar/keystoresdk_v1 5 1 aar of the project file to import the library go to gradle scripts > build gradle and enter the following dependencies dependencies { repositories { flatdir{ dirs 'aar' } } implementation 'com samsung android sdk coldwallet keystoresdk_v1 5 1@aar' } check the status of samsung blockchain keystore the first thing to do is to check the status of samsung blockchain keystore in the sample application, it is implemented at initializekeystore in presenter intropresenter java you can find the following steps to check the status of keystore in your android app, call scwservice getinstance if the returned value is an instance and not null, then it means samsung blockchain keystore is supported on the device however, if null is returned, the user must use a different keystore in the sample code, toast a message to notify that the device doesn’t support the keystore // check samsung blockchain keystore is supported or not if scwservice getinstance == null { mcontract toastmessage "samsung blockchain keystore is not supported on your device " ; } call getkeystoreapilevel api to see if the current samsung blockchain keystore being used, properly supports the features that your android app is currently aiming for if the required api level is higher than the current samsung blockchain keystore level, users are directed to samsung blockchain keystore app page in galaxy store through the provided deeplink to update // check installed api level else if scwservice getinstance getkeystoreapilevel < 1 { // if api level is lower, jump to galaxy apps to update keystore app mcontract showdialog "" , "ok" , "the api level is too low jump to galaxy store" , -> mcontract launchdeeplink scwdeeplink galaxy_store ; } check if a user has set up the samsung blockchain keystore and is ready to use it by calling getseedhash api if the seed hash value in string is zero-length, this means the user has not set up samsung blockchain keystore yet hence, your app will need to guide the user to jump to samsung blockchain keystore via deeplink to either create or import a wallet // check seed hash exist else if scwservice getinstance getseedhash length == 0 { // if seed hash is empty, // jump to blockchain keystore to create or import wallet mcontract showdialog "" , "ok" , "the seed hash is empty " + "jump to blockchain keystore to create/import wallet " , -> mcontract launchdeeplink scwdeeplink main ; } if the getseedhash api returned value is not zero-length, it means that the user has successfully set up samsung blockchain keystore if there is a previously saved or cached seed hash value, compare the two seed hash values if those two values are not equal, nor if there is no such saved cached seed hash value, then the address has to be checked again if the seed hash value has been changed, it means the master seed has been changed as well, meaning the address that your android app was linked to may no longer be the same address // check seed hash cached else if !textutils equals cachedseedhash, scwservice getinstance getseedhash { // if the seed hash is different from cached, update seed hash and address // go to next activity final string ethereumhdpath = "m/44'/60'/0'/0/0"; getethereumaddress ethereumhdpath , success, errorcode, address, seedhash -> { if success { updateaddress address ; updateseedhash seedhash ; mcontract showtimelineactivity true ; } else { mcontract toastmessage "cannot get address error code " + errorcode ; } mcontract setloading false ; } ; return false; } if those two values are equal, it means checking the keystore status was successful, and you can move on to the next step // success else { // set address from cached value // go to next activity string address = prefshelper getinstance getcachedaddress ; updateseedhash cachedseedhash ; updateaddress address ; mcontract showtimelineactivity false ; } get the ethereum address in the blockchain network, the address can be used like a user’s account as the balance and the transaction history can be checked using the address in this sample project, get the address from keystore and display the address and account balance in the bottom sheet of the screen keystore is a hierarchical deterministic hd wallet, a standard tree structure represented by derivation paths for the ethereum address, use “m/44'/60'/0'/0/0” follow bip44 it is implemented at getethereumaddress string hdpath, getethereumaddresscallback callback in presenter/intropresenter java arraylist<string> path = new arraylist<> ; path add hdpath ; scwservice getinstance getaddresslist new scwservice scwgetaddresslistcallback { @override public void onsuccess list<string> list { string seedhash = scwservice getinstance getseedhash ; string address = list get 0 ; callback onaddressreceived true, 0, address, seedhash ; } @override public void onfailure int errorcode, string errormessage { callback onaddressreceived false, errorcode, "", "" ; } }, path ; sign a transaction ether value transfer or smart contract execution is executed by transactions that users create and sign signing a transaction is the process of generating a signature on it using the private key of the transaction sender samsung blockchain keystore can be utilized to sign a cryptocurrency transaction, such as ethereum by implementing the following steps creates an unsigned transaction, and requests samsung blockchain keystore to sign the transaction via apis like signethtransaction then the user will see a transaction confirmation page on a secure screen called, trusted user interface tui executed in trusted execution environment tee by samsung blockchain keystore once the user confirms the transaction with pin or biometrics authentication, like fingerprint, samsung blockchain keystore will sign a transaction with the private key derived from the given hd path when samsung blockchain keystore returns the signed transaction, your app can submit or send the signed transaction to the blockchain network in this sample project, create an unsigned transaction to execute posting a comment smart contract in addition, sign the transaction with keystore and send the transaction it is implemented at signtransaction in presenter/writefeedpresenter java // sign the transaction with samsung blockchain keystore // use hdpath m/44'/60'/0'/0/0 final string hdpath = "m/44'/60'/0'/0/0"; scwservice getinstance signethtransaction new scwservice scwsignethtransactioncallback { @override public void onsuccess byte[] signedtransaction { boolean result = sendsignedtransaction signedtransaction ; listener transactiondidfinish result, "" ; } @override public void onfailure int errorcode, string errormessage { listener transactiondidfinish false, "error code " + errorcode ; } }, unsignedtx, hdpath, null ; run the app and try it out the app screen should look like below you're done! congratulations! you have successfully achieved the goal of this code lab now, you can create a decentralized app by yourself! if you're having trouble, you may download this file keystore sdk complete code 897 07 kb
Learn Code Lab
codelabtransfer erc20 token with blockchain app objective develop a decentralized application dapp to transfer erc20 tokens between ethereum accounts using samsung blockchain platform sdk overview blockchain technology has been creating a significant impact in multiple sectors, such as banking, cybersecurity, and supply chain management it is widely used as a means of secure payment between different parties samsung blockchain platform sdk brings developers and consumers to the blockchain world by providing a complete set of functions that the decentralized app dapp or blockchain app needs ethereum is a decentralized blockchain network where you can perform transactions using its native currency, ether, and token you can interact with the network through simple api calls provided by the sdk for detailed information, see samsung blockchain platform sdk set up your environment you will need the following java se development kit 8 or later android studio latest version recommended samsung galaxy device that supports samsung blockchain sample code here is a sample code for you to start coding in this code lab download it and start your learning experience! token transaction sample code 2 73 mb enable developer mode to activate developer mode on your mobile device, follow the steps below navigate through settings > biometrics and security > samsung blockchain keystore and click about blockchain keystore tap the samsung blockchain keystore app name quickly, ten times or more if succeeded, developer mode will show start your project after downloading the sample code containing the project files, in android studio, click open to open the existing project locate the downloaded android project codelab-send-token-transaction-blank-code from the directory and click ok noteuser interface ui resources are already included in the provided project simply apply the code in the next steps in this code lab moreover, going through the sdk document is recommended initialize the instance since sblockchain is the initial base class of the samsung blockchain platform sdk, the first thing you need to do is create an sblockchain instance along with that, create the following in sendtokenfragment java hardwarewalletmanager for wallet operations accountmanager for account operations ethereumservice for transactions msblockchain = new sblockchain ; try { msblockchain initialize mcontext ; } catch ssdkunsupportedexception e { e printstacktrace ; } maccountmanager = msblockchain getaccountmanager ; mhardwarewalletmanager = msblockchain gethardwarewalletmanager ; mcoinnetworkinfo = new coinnetworkinfo cointype eth, ethereumnetworktype goerli, rpcurl ; mcoinservice = coinservicefactory getcoinservice getcontext , mcoinnetworkinfo ; ethereumservice = ethereumservice mcoinservice; connecttohardwarewallet ; connect to samsung blockchain keystore connect the app to the hardware wallet, which, in this case, is the samsung blockchain keystore you can get a hardware wallet instance from hardwarewalletmanager if you want to reset the wallet, set the second parameter of connect api to true otherwise, set it to false mhardwarewalletmanager connect hardwarewallettype samsung, false setcallback new listenablefuturetask callback<hardwarewallet> { @override public void onsuccess hardwarewallet hardwarewallet { handler post new runnable { @override public void run { log i tag, "hardwarewallet is connected " ; mprogressbar setvisibility view invisible ; getaccount ; } } ; } @override public void onfailure @nonnull executionexception e { mprogressbar setvisibility view invisible ; log e tag, "hardwarewallet connection failed " + e ; } @override public void oncancelled @nonnull interruptedexception e { mprogressbar setvisibility view invisible ; log e tag, "hardwarewallet connection cancelled " + e ; } } ; generate new account samsung blockchain platform sdk manages the address on blockchain as an account it contains the information required for signing and the blockchain address accountmanager provides apis dedicated for fetching, creating, and restoring accounts use generatenewaccount api for the creation of a new ethereum account upon clicking the create account button in the app hardwarewallet connectedhardwarewallet = mhardwarewalletmanager getconnectedhardwarewallet ; maccountmanager generatenewaccount connectedhardwarewallet, mcoinnetworkinfo setcallback new listenablefuturetask callback<account> { @override public void onsuccess account account { mprogressbar setvisibility view invisible ; log i tag, "generate new account successful " + account ; handler post new runnable { @override public void run { getaccount ; } } ; } @override public void onfailure @nonnull executionexception e { mprogressbar setvisibility view invisible ; log e tag, "generate new account failed " + e ; } @override public void oncancelled @nonnull interruptedexception e { mprogressbar setvisibility view invisible ; log e tag, "generate new account cancelled " + e ; } } ; after creating a new account, call the getaccounts api to get the account list if you already have an account, the textview will show the account's address and the create account button will be disabled in the app accounts = maccountmanager getaccounts null, cointype eth, ethereumnetworktype goerli ; if !accounts isempty { methereumaccount = ethereumaccount accounts get accounts size - 1 ; showaccounttextview settext methereumaccount getaddress ; generateaccountbutton setenabled false ; } create a token account to perform a token transaction, add the token address with the corresponding ethereum account and create a token account by calling the addtokenaddress api use the generated token account to perform token-related actions an ethereum account can add one or more tokens ethereumservice addtokenaddress methereumaccount, tokenaddress setcallback new listenablefuturetask callback<ethereumaccount> { @override public void onsuccess ethereumaccount ethereumaccount { mprogressbar setvisibility view invisible ; log i tag, "add token successful " + ethereumaccount ; handler post new runnable { @override public void run { toast maketext getcontext , "add token successful", toast length_short show ; } } ; } @override public void onfailure @nonnull executionexception e { mprogressbar setvisibility view invisible ; log e tag, "add token failed " + e ; } @override public void oncancelled @nonnull interruptedexception e { mprogressbar setvisibility view invisible ; log e tag, "add token cancelled " + e ; } } ; get token balance fetch the balance of the added token using gettokenbalance api ethereumservice gettokenbalance mtokenaccount, ethereumblockparameter latest setcallback new listenablefuturetask callback<biginteger> { @override public void onsuccess biginteger biginteger { mprogressbar setvisibility view invisible ; bigdecimal tokendecimal = bigdecimal ten pow 18 ; bigdecimal balance = new bigdecimal biginteger divide tokendecimal ; log d tag, "gettokenbalance success " + balance ; handler post new runnable { @override public void run { tokenbalance settext balance tostring ; } } ; } @override public void onfailure @nonnull executionexception e { mprogressbar setvisibility view invisible ; log e tag, "gettokenbalance failed " + e ; } @override public void oncancelled @nonnull interruptedexception e { mprogressbar setvisibility view invisible ; log e tag, "gettokenbalance cancelled " + e ; } } ; transfer token to transfer tokens between accounts, set the receiver address and the amount of tokens to send the trusted ui of the samsung blockchain keystore hardware wallet appears upon pressing the send button in the app, showing all the information regarding the transaction for confirmation generate a transaction hash upon confirmation of the transaction ethereumservice sendtokentransaction mhardwarewalletmanager getconnectedhardwarewallet , mtokenaccount, mtoaddress, tokenaddress, maxpriorityfee, methereumfeeinfo getestimatedbasefee add maxpriorityfee , mgaslimit, msendtokenamount, null setcallback new listenablefuturetask callback<transactionresult> { @override public void onsuccess transactionresult transactionresult { mprogressbar setvisibility view invisible ; log i tag, "send token successful " + transactionresult gethash ; handler post new runnable { @override public void run { toast maketext getcontext , "transaction hash " + transactionresult gethash , toast length_short show ; } } ; } @override public void onfailure @nonnull executionexception e { mprogressbar setvisibility view invisible ; log e tag, "send token failed " + e ; } @override public void oncancelled @nonnull interruptedexception e { mprogressbar setvisibility view invisible ; log i tag, "send token cancelled " + e ; } } ; run the app after building the apk, follow the steps below to test the application on a samsung blockchain-compatible device in send token tab, click create account copy the generated account address go to eth faucet tab to open the free faucet site already added to the application paste the account address and press the send me eth button click the hash string under your transactions to open etherscan and wait until the transaction succeeded go to token faucet tab and press get token to add some tokens in the account confirm the transaction go back to send token tab, click add token and press token balance to see added tokens press gas limit and max priority fee lastly, press send to transfer tokens confirm the transaction check the transaction status and details by finding the account address or the generated transaction hash txn hash in goerli testnet explorer you're done! congratulations! you have successfully achieved the goal of this code lab now, you can develop a decentralized application that can transfer erc20 tokens using samsung blockchain platform sdk if you face any trouble, you may download this file token transaction complete code 2 73 mb to learn more about developing apps with samsung blockchain, visit developer samsung com/blockchain
Learn Code Lab
codelabadd samsung in-app purchase service to your app objective learn how to integrate samsung in-app purchase iap service into your app so that users can purchase digital consumable and non-consumable items within the app registered in the galaxy store overview the samsung in-app purchase iap service offers developers a robust solution for handling digital products purchased within mobile apps it ensures a smooth and secure experience when purchasing digital goods or products, managing subscriptions, or dealing with refunds and consumed products the iap sdk makes integrating the iap functionality into your app simple, allowing you to configure iap settings, retrieve product details, offer and sell products, and manage purchased products effortlessly to successfully sell in-app products, follow these four basic steps download and integrate the samsung iap sdk into your application request for commercial seller status in the samsung galaxy store seller portal upload your application’s binary file in the seller portal add in-app products to your app in-app products can be categorized into two types item and subscription item goods and services that charge users on a one-time basis item is a consumable or non-consumable type based on whether it can be repurchased or not subscription a set of benefits that charges users on a recurring basis users can use subscription products as many times as they want during the free trial period or when a paid subscription is active this code lab focuses only on item as the in-app product for more information, go to samsung iap set up your environment you will need the following android studio latest version recommended samsung iap sdk latest version samsung galaxy device android 6 0 or higher samsung galaxy store seller portal commercial seller account sample code here is a sample code for you to start coding in this code lab download it and start your learning experience! in-app purchase turbobike sample code 708 6 kb start your project in android studio, click open to open an existing project locate the downloaded sample project and click ok register the app and its items in the seller portal to register the sample app along with the in-app items in the samsung galaxy store seller portal, follow these steps sign in using your commercial seller account in android studio, modify the package name of the sample app navigate to app > kotlin + java > com example turbobike view, and in the mainactivity java file, refactor the application name turbobike from the package name com example turbobike for all directories notethe package name com example turbobike is already registered in the seller portal to avoid any conflicts, rename it with a different package name build the apk from android studio and upload the binary to the seller portal once the testing process is complete and the app functions smoothly as intended, return to this step and upload the final apk file under the in app purchase tab, add three items named bike, booster, and fuel these are item ids of the in-app items created in the sample app where the bike is a non-consumable item, while both booster and fuel are consumable items refer to the step-by-step guide for detailed instructions lastly, add a licensed tester to enable purchasing within the app edit your seller portal profile and include your samsung account in the license test field on the test device, sign in with the same samsung account initialize the samsung iap sdk before using the samsung iap sdk library, certain configurations are necessary, which are already applied in the sample code provided the samsung-iap-6 5 0 aar library is added to the app > libs folder, and included as a dependency in the module-level build gradle file dependencies { … implementation filetree dir 'libs', include ['* aar'] } these necessary permissions are already added in the androidmanifest xml file com samsung android iap permission billing to connect to iap and enable in-app product registration in seller portal android permission internet because iap uses the internet <uses-permission android name="com samsung android iap permission billing" /> <uses-permission android name="android permission internet" /> go to mainactivity java and in the oncreate function, create an instance of the samsung iap sdk to utilize the functionalities it offers set the operating mode to operation_mode_test to purchase products without payment and enable only licensed testers to test without incurring charges iaphelper = iaphelper getinstance getapplicationcontext ; iaphelper setoperationmode helperdefine operationmode operation_mode_test ; notebefore submitting the app for beta testing or release, change the operating mode to operation_mode_production get the list of all products owned by the user the getownedlist function returns a list of products that the user has previously purchased, including items purchased with a single charge to the user's payment method items are either consumable or non-consumable consumable items that have not yet been used and not yet reported as consumed non-consumable items subscriptions that are in a free trial or an active state call the getownedlist function from the iaphelper class also, check if there are any consumable items in the returned list and call the handleconsumableitems function for each consumable items which handles consumepurchaseitems api for non-consumable items call handlenonconsumableitems function which handle acknowledgepurchases api iaphelper getownedlist iaphelper product_type_all, new ongetownedlistlistener { @override public void ongetownedproducts @nonnull errorvo errorvo, @nonnull arraylist<ownedproductvo> arraylist { if errorvo geterrorcode == iaphelper iap_error_none { for ownedproductvo item arraylist { if item getitemid equals "fuel" || item getitemid equals "booster" { // consume the purchased item handleconsumableitems item getpurchaseid ; } else if item getitemid equals "bike" { helperdefine acknowledgedstatus acknowledgedstatus = item getacknowledgedstatus ; if acknowledgedstatus equals helperdefine acknowledgedstatus not_acknowledged { handlenonconsumableitems item getpurchaseid ; } } } } else { log d "getownedproducts failed ", errorvo tostring ; } } } ; notecall getownedlist whenever launching the application to check for unconsumed items or subscription availability use the acknowledgepurchases api as below iaphelper acknowledgepurchases purchaseid, new onacknowledgepurchaseslistener { @override public void onacknowledgepurchases @nonnull errorvo errorvo, @nonnull arraylist<acknowledgevo> acknowledgedlist { if errorvo geterrorcode == iaphelper iap_error_none { for acknowledgevo item acknowledgedlist { log i "acknowledged purchases ", item getstatusstring ; } } else { log e "acknowledged purchases error ", errorvo geterrorstring ; } } } ; report consumable items as consumed mark the consumable items returned from getownedlist and those successfully purchased with startpayment as consumed by calling the consumepurchaseditems function iaphelper consumepurchaseditems purchaseid, new onconsumepurchaseditemslistener { @override public void onconsumepurchaseditems @nonnull errorvo errorvo, @nonnull arraylist<consumevo> arraylist { if errorvo geterrorcode == iaphelper iap_error_none { toast maketext getapplicationcontext ,"consumed successfully now you can purchase another item ", toast length_short show ; } else { toast maketext getapplicationcontext , "consume failed " + errorvo geterrorstring , toast length_short show ; } } } ; this makes the items available for repurchase, regardless of whether they are used or not in the sample app, consumable items cannot be used and it only stores the total count of the items purchased get item details to retrieve information about some or all in-app products registered to the app, use the getproductsdetails function by specifying an item id such as bike or booster, you can fetch details for a particular in-app item to obtain information about all in-app products available in the seller portal for the user, pass an empty string "" as the argument iaphelper getproductsdetails "bike, booster, fuel", new ongetproductsdetailslistener { @override public void ongetproducts @nonnull errorvo errorvo, @nonnull arraylist<productvo> arraylist { if errorvo geterrorcode == iaphelper iap_error_none { for productvo item arraylist { if item getitemid equals itemid { // set product details value to ui product settext "product name " + item getitemname ; price settext "product price " + item getitempricestring ; currency settext "currency " + item getcurrencycode ; // click continue button to purchase dialogbutton setonclicklistener dialogbtnlistener ; } } } else { toast maketext getapplicationcontext , "getproductdetails failed " + errorvo geterrorstring , toast length_short show ; } } } ; handle item purchase and payment process to initiate a purchase and complete the payment transaction process, use the startpayment function use obfuscatedaccountid and obfuscatedprofileid value is up to 64 bytes to detect fraudulent payments these values are returned in purchasevo the result of the purchase is specified in the onpaymentlistener interface, which includes the detailed purchase information purchasevo in case of a successful transaction if there's an error during the payment process, an error code -1003 indicates that the non-consumable item is already purchased for further information on error responses, refer to the documentation on response codes iaphelper startpayment itemid, obfuscatedaccountid, obfuscatedprofileid, new onpaymentlistener { @override public void onpayment @nonnull errorvo errorvo, @nullable purchasevo purchasevo { if errorvo geterrorcode == iaphelper iap_error_none { log d "purchaseid " , purchasevo getpurchaseid ; // non-consumable item, can purchase single time if itemid equals "bike" { handlenonconsumableitems purchasevo getpurchaseid ; // update ui purchasebikebtn settext "already purchased" ; } // consumable item, can purchase multiple time else if itemid equals "booster" { handleconsumableitems purchasevo getpurchaseid ; // update booster count in ui boostercount+=1; boostercountertv settext "⚡ "+boostercount+" ev" ; }else if itemid equals "fuel" { handleconsumableitems purchasevo getpurchaseid ; // update fuel count in ui fuelcount+=1; fuelcountertv settext "⛽ "+ fuelcount+" ltr" ; } }else { // non-consumable item, already purchase if errorvo geterrorcode == -1003 { purchasebikebtn settext "already purchased" ; } } } } ; upon successfully purchasing a consumable item, the consumepurchaseditems api is called through the handleconsumableitems function for a non-consumable item, the acknowledgepurchases api is called through the handlenonconsumableitems function the total number of purchased boosters and fuel is displayed on the app ui using the boostercountertv settext and fuelcountertv settext methods respectively run the app after building the apk, install the app on a samsung galaxy device test the app by making purchases the turbo bike can only be bought once, while either the booster or fuel can be purchased multiple times after purchasing in-app items, the app shows that the bike has already been purchased along with the number of boosters and fuel bought you're done congratulations! you have successfully achieved the goal of this code lab now, you can integrate samsung iap sdk into your application by yourself! if you are having trouble, you may download this file in-app purchase turbobike complete code 710 1 kb to learn more about developing apps with samsung iap sdk, visit developer samsung com/iap
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