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Develop Health
dochealth platform’s developer mode samsung health sensor sdk’s apis work properly for registered partner apps in a samsung health system health team registers the partner app’s info including an app package name and signature sha256 in the samsung’s system and health platform on a watch device allows to track data only if a running app’s package name and signature both are matched with the registered info otherwise, the sdk gives sdk_policy error a registered app signature in the samsung health system should be from the application’s release key if partner app developer would like to run or test the app with a different app key, use the health platform’s developer mode notethe health platform’s developer mode is only for a test or debug your app it is not for app users please do not provide a developer mode guide to app users developer mode on the developer mode can be enabled with pull up the display and select the settings icon select apps and swipe down select health platform tap the health platform title part quickly about 10 times [dev mode] displays after the health platform title it means the developer mode enabled developer mode off tapping the health platform title makes the developer mode disabled
Develop Health
docgetting started to track galaxy watch's health sensor data with the samsung health sensor sdk, do the following import library to project to use the library, you have to add it to the project you can do that by adding implementation in a build gradle file implementation files 'path/to/library/samsung-health-sensor-api aar' request permission the following permissions are related to the sdk activity_recognition body_sensors you can check required permissions for each healthtrackertype in order to perform measurements, application requires the sensors permission make sure to include it in your application's androidmanifest xml <uses-permission android name="android permission activity_recognition" /> and request the permission in your application if activitycompat checkselfpermission getapplicationcontext , "android permission activity_recognition" == packagemanager permission_denied { requestpermissions this, new string[]{manifest permission activity_recognition, 0 ; } connect to health platform the health platform provides the health data tracking service to track sensor data, your watch application needs to connect with the health platform include the samsung health sensor sdk library in your application project and prepare a connection listener private final connectionlistener connectionlistener = new connectionlistener { @override public void onconnectionsuccess { //process connection activities here } @override public void onconnectionended { //process disconnection activities here } @override public void onconnectionfailed healthtrackerexception e { if e geterrorcode == healthtrackerexception old_platform_version || e geterrorcode == healthtrackerexception package_not_installed toast maketext getapplicationcontext , "health platform version is outdated or not installed", toast length_long show ; if e hasresolution { e resolve mainactivity this ; } } }; it's worth noting that onconnectionfailed provides healthtrackerexception that may be able to fix a connection problem by itself if the installed health platform version is outdated or is not installed on a watch, calling resolve is helpful, as it will redirect the user to the health platform download or update page before jumping to the page, we recommend displaying a guide message with the error information and what will happen connect to the health platform healthtrackingservice healthtrackingservice = new healthtrackingservice connectionlistener, getapplicationcontext ; healthtrackingservice connectservice ; check capabilities before tracking sensor data with the sdk, it's good to know if the device you are using can perform the measurement you want to make you can check its capabilities with healthtrackercapability getsupporthealthtrackertypes list<healthtrackertype> availabletrackers = healthtrackingservice gettrackingcapability getsupporthealthtrackertypes ; the list returned by the function includes all the available health tracker types from the watch if the list does not contain a desired health tracker type, you can inform the user that it is not possible to perform the desired measurement on the watch for example, a capability check for healthtrackertype accelerometer_continuous can be the following if !availabletrackers contains healthtrackertype accelerometer_continuous { toast maketext getapplicationcontext , "accelerometer tracking not supported on device", toast length_long show ; log e app_tag, "this watch does not support accelerometer tracking " ; } getting health tracker type as healthtrackertype accelerometer_continuous is available on the watch, create a healthtracker instance private healthtracker tracker = healthtrackingservice gethealthtracker healthtrackertype accelerometer_continuous ; set a tracker event listener to receive sensor data, set up a tracker event listener an example of generic listener healthtracker trackereventlistener listener = new healthtracker trackereventlistener { @override public void ondatareceived @nonnull list<datapoint> list { //process your data } @override public void onflushcompleted { //process flush completion } @override public void onerror healthtracker trackererror trackererror { log i app_tag, " onerror called" ; if trackererror == healthtracker trackererror permission_error { runonuithread -> toast maketext getapplicationcontext , "permissions check failed", toast length_short show ; } if trackererror == healthtracker trackererror sdk_policy_error { runonuithread -> toast maketext getapplicationcontext , "sdk policy denied", toast length_short show ; } } }; sensor data is received in ondatareceived and its datapoint has valuekey objects the value key can be one of the following sets depending on the health tracker type accelerometerset biaset ecgset heartrateset ppgset skintemperatureset spo2set sweatlossset error handling is available in the onerror event of the listener if sdk_policy_error is received, and if you are testing the application without the application's release key, enable the health platform's developer mode once we have a listener ready, tracking sensor data is available by setting an event listener an example of a tracker that is going to read accelerometer data private healthtracker tracker = healthtrackingservice gethealthtracker healthtrackertype accelerometer_continuous ; tracker seteventlistener accelerometerlistener ; if you would like to get another kind of sensor data, create a new healthtracker instance and add a separate listener to it flushing data if the watch display is turned off, the sdk starts collecting data in batches we can use the flush function to force the data to be sent immediately tracker flush ; the flushed data is received by the listener's ondatareceived the flush also resets the counter for sampling before data is automatically pushed for example, if data is normally sent every 300 samples and flush is used after collecting 200 samples, next push happens 300 samples after calling the flush this functionality is best used with batching data types that collect many samples before pushing them finishing data tracking unsetting listeners from trackers, as well as disconnecting from the sdk, is mandatory it is important to stop unnecessary sensor measurements to prevent battery drain after we are done reading data, we need to unset the listener tracker unseteventlistener ; after your work with the api is done, you need to disconnect from the health platform if healthtrackingservice != null healthtrackingservice disconnectservice ; that's everything you need to know before starting to develop you application and making use of the samsung health sensor sdk in case you want to further develop your knowledge about sdk, we encourage you to get familiar with our sample applications
Learn Code Lab
codelabcreate a daily step counter on galaxy watch objective create a native app for galaxy watch, operating on wear os powered by samsung, using health platform to read your daily steps overview health platform provides a unified and straightforward way for accessing a wide range of health and wellness related data with health platform api, you may easily read and write data stored in health platform on android and wear os powered by samsung applications can have access to these secured data only with explicit user consent additionally, users may disable access to the data at any point in time see health platform descriptions for detailed information set up your environment you will need the following galaxy watch4 or newer 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! health step count sample code 119 87 kb 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 will display as on the image below afterwards, developer options will be visible under settings tap developer options and enable the following options adb debugging debug over wi-fi turn off automatic wi-fi connect your galaxy watch to wi-fi go to settings > connection > wi-fi and make sure that wi-fi is enabled from the list of available wi-fi networks, choose and connect to the same one as your pc when successfully connected, tap a wi-fi network name, swipe down, and note the ip address you will need this to connect your watch over adb from your pc connect your galaxy watch to android studio in android studio, go to terminal and type adb connect <ip address as mentioned in previous step> when prompted, tap always allow from this computer to allow debugging upon successful connection, you will 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 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 stepcount from the directory and click ok check dependency and app manifest in the dependencies section of stepcount/app/build gradle file, see the appropriate dependency for health platform dependencies { implementation com google android libraries healthdata health-data-api 1 0 0-alpha01' // } notelibrary might update from time to time if necessary, choose the version suggested by android studio request for data permissions before accessing any data through health platform, the client app must obtain necessary permissions from the user in permissions java, create a permission instance to trigger relevant permission screen and obtain required consent from end user data type name intervaldatatypes steps read access accesstype read /******************************************************************************************* * [practice 1] build permission object grand permissions for read today's steps * - set interval data type of steps * - set read access type ------------------------------------------------------------------------------------------- * - hint uncomment lines below and fill todos with * 1 for interval data type intervaldatatypes steps * 2 for read access accesstype read ******************************************************************************************/ permission stepsreadpermission = permission builder // setdatatype "todo 1 1 " // setaccesstype "todo 1 2 " build ; make a query to aggregate today’s steps create read request with all necessary information to read data through health platform api the answer from the platform will be asynchronous with the result from which you can get all the data you are interested in follow the steps below to get today's steps count in stepsreader java, create a readaggregateddatarequest with cumulativeaggregationspec instance data type name intervaldatatypes steps /******************************************************************************************* * [practice 2] build read aggregated data request object for read today's steps * - set interval data type of steps ------------------------------------------------------------------------------------------- * - hint uncomment line below and fill todo 2 with * 1 for interval data type intervaldatatypes steps ******************************************************************************************/ readaggregateddatarequest readaggregateddatarequest = readaggregateddatarequest builder settimespec timespec builder setstartlocaldatetime localdatetime now with localtime midnight build // addcumulativeaggregationspec cumulativeaggregationspec builder "todo 2 1 " build build ; read cumulative steps count from cumulativedata set variable steps value to 0l it is the count of daily steps get aggregatedvalue object using cumulativedata api cumulativedataaggregateddata representing total of intervaldata over a period of time e g total steps in a day public aggregatedvalue gettotal check the result if it is not null, get aggregated value using aggregatedvalue api aggregatedvaluevalue fields aggregated over a period of time only numeric fields longfield, doublefield can be included in aggregation public long getlongvalue returns all longfields and their values that are already set add value to the daily steps result counter /******************************************************************************************* * [practice 3] read aggregated value from cumulative data and add them to the result * - get aggregatedvalue from cumulativedata object * - get steps count from aggregatedvalue object ------------------------------------------------------------------------------------------- * - hint uncomment lines below and replace todo 3 with parts of code * 1 get aggregatedvalue object 'obj' using cumulativedata gettotal * 2 get value using obj getlongvalue and add to the result ******************************************************************************************/ long steps = 0l; if result != null { list<cumulativedata> cumulativedatalist = result getcumulativedatalist ; if !cumulativedatalist isempty { for cumulativedata cumulativedata cumulativedatalist { //"todo 3 1 " //"todo 3 2 " } } } return steps; run unit tests for your convenience, you will find an additional unit tests package this will let you verify your code changes even without using a physical watch see instruction below on how to run unit tests right click on com samsung sdc21 stepcount test and execute run 'tests in 'com samsung sdc21 stepcount'' command if you completed all the tasks correctly, you will see all the unit tests passed successfully run the app after building the apk, you can run the application on a connected device to see real-life aggregated steps count measured by a smartwatch right after the app is started, it will request for the user permission allow the app to receive data of the activity afterwards, the application main screen will be shown it will automatically display today’s step count tap on refresh button to read current steps count from health platform you're done! congratulations! you have successfully achieved the goal of this code lab now, you can create a daily step counter app by yourself! if you're having trouble, you may download this file health step count complete code 119 79 kb learn more by going to health platform
Develop Health
docapp creation process creating a wear os app is available with the samsung health sensor sdk a galaxy watch is also needed to develop and run the app find target device information more here sdk download download the samsung health sensor sdk and check the sdk content samsung health sensor sdk v1 3 0 2 47 mb enabling the developer mode you can check the sdk operation by turning on the health platform's developer mode notethe health platform's developer mode is intended solely for app development purposes it should not be used for your app users if you want to run your app without utilizing the developer mode, please submit the partner request developing your app create you app with importing the sdk library if you encounter any issue using the sdk, please submit your query on the developer support partner request to distribute your app please submit partner request before your app distribution your app's information including the app package name and signature sha-256 can be registered in the samsung health's system after an approval otherwise, the app using the samsung health sensor sdk works only with the developer mode turned on our partnership is an exclusive service for the samsung health sensor sdk that allows users to discover engaging health and fitness apps partnership request
Learn Code Lab
codelabtransfer heart rate data from galaxy watch to a mobile device objective create a health app for galaxy watch, operating on wear os powered by samsung, to measure heart rate and inter-beat interval ibi , send data to a paired android phone, and create an android application for receiving data sent from a paired galaxy watch overview with this code lab, you can measure various health data using samsung health sensor sdk and send it to a paired android mobile device for further processing samsung health sensor sdk tracks various health data, but it cannot save or send collected results meanwhile, wearable data layer allows you to synchronize data from your galaxy watch to an android mobile device using a paired mobile device allows the data to be more organized by taking advantage of a bigger screen and better performance see samsung health sensor sdk descriptions for detailed information set up your environment you will need the following galaxy watch4 or newer android mobile device 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! heart rate data transfer sample code 213 7 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 will display as on the image below afterwards, developer options will be visible under settings tap developer options and enable the following options adb debugging in developer options find 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 will see the following message in the 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 to use the app, you need to enable developer mode in the health platform on your watch go to settings > apps > health platform quickly tap health platform title for 10 times this enables developer mode and displays [dev mode] below the title to stop using developer mode, quickly tap health platform title for 10 times to disable it set up your android device click on the following links to setup your android device enable developer options run apps on a hardware device connect the galaxy watch with you samsung mobile phone start your project in android studio, click open to open an existing project locate the downloaded android project hrdatatransfer-code-lab from the directory and click ok you should see both devices and applications available in android studio as in the screenshots below initiate heart rate tracking noteyou may refer to this blog post for more detailed analysis of the heart rate tracking using samsung health sensor sdk first, you need to connect to the healthtrackingservice to do that create connectionlistener, create healthtrackingservice object by invoking healthtrackingservice connectionlistener, context invoke healthtrackingservice connectservice when connected to the health tracking service, check the tracking capability the available trackers may vary depending on samsung health sensor sdk, health platform versions or watch hardware version use the gettrackingcapability function of the healthtrackingservice object obtain heart rate tracker object using the function healthtrackingservice gethealthtracker healthtrackertype heart_rate_continuous define event listener healthtracker trackereventlistener, where the heart rate values will be collected start tracking the tracker starts collecting heart rate data when healthtracker seteventlistener updatelistener is invoked, using the event listener collect heart data from the watch the updatelistener collects datapoint instances from the watch, which contains a collection of valuekey objects those objects contain heart rate, ibi values, and ibi statuses there's always one value for heart rate while the number of ibi values vary from 0-4 both ibi value and ibi status lists have the same size go to wear > java > data > com samsung health hrdatatransfer > data under ibidataparsing kt, provide the implementation for the function below /******************************************************************************* * [practice 1] get list of valid inter-beat interval values from a datapoint * - return arraylist<int> of valid ibi values validibilist * - if no ibi value is valid, return an empty arraylist * * var ibivalues is a list representing ibivalues up to 4 * var ibistatuses is a list of their statuses has the same size as ibivalues ------------------------------------------------------------------------------- * - hints * use local function isibivalid status, value to check validity of ibi * ****************************************************************************/ fun getvalidibilist datapoint datapoint arraylist<int> { val ibivalues = datapoint getvalue valuekey heartrateset ibi_list val ibistatuses = datapoint getvalue valuekey heartrateset ibi_status_list val validibilist = arraylist<int> //todo 1 return validibilist } check data sending capabilities for the watch once the heart rate tracker can collect data, set up the wearable data layer so it can send data to a paired android mobile device wearable data layer api provides data synchronization between wear os and android devices noteto know more about wearable data layer api, go here to determine if a remote mobile device is available, the wearable data layer api uses concept of capabilities not to be confused with samsung health sensor sdk’s tracking capabilities, providing information about available tracker types using the wearable data layer's capabilityclient, you can get information about nodes remote devices being able to consume messages from the watch go to wear > java > com samsung health hrdatatransfer > data in capabilityrepositoryimpl kt, and fill in the function below the purpose of this part is to filter all capabilities represented by allcapabilities argument by capability argument and return the set of nodes set<node> having this capability later on, we need those nodes to send the message to them /************************************************************************************** * [practice 2] check capabilities for reachable remote nodes devices * - return a set of node objects out of all capabilities represented by 2nd function * argument, having the capability represented by 1st function argument * - return empty set if no node has the capability -------------------------------------------------------------------------------------- * - hints * you might want to use filtervalues function on the given allcapabilities map * ***********************************************************************************/ override suspend fun getnodesforcapability capability string, allcapabilities map<node, set<string>> set<node> { //todo 2 } encode message for the watch before sending the results of the heart rate and ibi to the paired mobile device, you need to encode the message into a string for sending data to the paired mobile device we are using wearable data layer api’s messageclient object and its function sendmessage string nodeid, string path, byte[] message go to wear > java > com samsung health hrdatatransfer > domain in sendmessageusecase kt, fill in the function below and use json format to encode the list of results arraylist<trackeddata> into a string /*********************************************************************** * [practice 3] - encode heart rate & inter-beat interval into string * - encode function argument trackeddata into json format * - return the encoded string ----------------------------------------------------------------------- * - hint * use json encodetostring function **********************************************************************/ fun encodemessage trackeddata arraylist<trackeddata> string { //todo 3 } notetrackeddata is an object, containing data received from heart rate tracker’s single datapoint object @serializable data class trackeddata var hr int, var ibi arraylist<int> = arraylist run unit tests for your convenience, you will find an additional unit tests package this will let you verify your code changes even without using a physical watch or mobile device see the instruction below on how to run unit tests right click on com samsung health hrdatatransfer test , and execute run 'tests in 'com samsung health hrdatatransfer" command if you have completed all the tasks correctly, you will see all the unit tests pass successfully run the app after building the apks, you can run the applications on your watch to measure heart rate and ibi values, and on your mobile device to collect the data from your watch once the app starts, allow the app to receive data from the body sensors afterwards, it shows the application's main screen to get the heart rate and ibi values, tap the start button tap the send button to send the data to your mobile device notethe watch keeps last ~40 values of heart rate and ibi you’re done! congratulations! you have successfully achieved the goal of this code lab now, you can create a health app on a watch to measure heart rate and ibi, and develop a mobile app that receives that health data! if you face any trouble, you may download this file heart rate data transfer complete code 213 9 kb to learn more about samsung health, visit developer samsung com/health
Learn Code Lab
codelabmeasure blood oxygen level on galaxy watch objective create a health app for galaxy watch, operating on wear os powered by samsung, utilizing samsung health sensor sdk to trigger and obtain blood oxygen level spo2 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 latest bioactive 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 watch4 or newer 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! measuring blood oxygen level sample code 146 3 kb connect your galaxy watch to wi-fi go to settings > connection > wi-fi and make sure that 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 will display as on the image below afterwards, developer options will be visible under settings tap developer options and enable the following options adb debugging in developer options find 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 will 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 on your watch go to settings > apps > health platform quickly tap health platform title for 10 times this enables developer mode and displays [dev mode] below the title to stop using developer mode, quickly tap health platform title for 10 times to disable it start your project in android studio, click open to open existing project locate the downloaded android project from the directory and click ok check capabilities for the device to track data with the samsung health sensor sdk, it must support a given tracker type – blood oxygen level to check this, get the list of available tracker types and verify that the tracker is on the list in the connectionmanager java file, navigate to the isspo2available function, use a provided healthtrackingservice object to create a healthtrackercapability instance, send it to the checkavailabletrackers function, and assign its result to the availabletrackers list gettrackingcapability returns a healthtrackercapability instance in the 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 health tracker type list /****************************************************************************************** * [practice 1] check capabilities to confirm spo2 availability * * ---------------------------------------------------------------------------------------- * * hint replace todo 1 with java code * get healthtrackercapability object from healthtrackingservice * send the object to checkavailabletrackers ******************************************************************************************/ public boolean isspo2available healthtrackingservice healthtrackingservice { if healthtrackingservice == null return false; list<healthtrackertype> availabletrackers = null; //"todo 1" if availabletrackers == null return false; else return availabletrackers contains healthtrackertype spo2_on_demand ; } check connection error resolution using samsung health sensor sdk api, resolve any error when connecting to health tracking service in the connectionmanager java file, navigate to the processtrackerexception function, and check if the provided healthtrackerexception object has a resolution assign the result to hasresolution variable hasresolution function in the healthtrackerexception object checks if the api can fix the error healthtrackerexceptionhealthtrackerexception contains error codes and checks the error's resolution if there is a resolution, solving the error is available by calling resolve activity boolean hasresolution checks whether the given error has a resolution /******************************************************************************************* * [practice 2] resolve healthtrackerexception error * * ----------------------------------------------------------------------------------------- * * hint replace todo 2 with java code * call hasresolution on healthtrackerexception object ******************************************************************************************/ public void processtrackerexception healthtrackerexception e { boolean hasresolution = false; //"todo 2" if hasresolution e resolve callingactivity ; if e geterrorcode == healthtrackerexception old_platform_version || e geterrorcode == healthtrackerexception package_not_installed observerupdater getobserverupdater notifyconnectionobservers r string novalidhealthplatform ; else observerupdater getobserverupdater notifyconnectionobservers r string connectionerror ; log e tag, "could not connect to health tracking service " + e getmessage ; } initialize spo2 tracker before the measurement starts, initialize the spo2 tracker by obtaining the proper health tracker object in the spo2listener java file, navigate to the init function using the provided healthtrackingservice object, create an instance of the spo2 tracker and assign it to the spo2tracker object gethealthtracker with healthtrackertype spo2_on_demand as an argument will create a healthtracker instance healthtrackingservicehealthtrackingservice initiates a connection to samsung's health tracking service and provides a healthtracker instance to track a healthtrackertype healthtracker gethealthtracker healthtrackertype healthtrackertype provides a healthtracker instance for the given healthtrackertype /******************************************************************************************* * [practice 3] initialize spo2 tracker * * ---------------------------------------------------------------------------------------- * * hint replace todo 3 with java code * initialize spo2tracker with proper samsung health sensor sdk functionality * call gethealthtracker on healthtrackingservice object * use healthtrackertype spo2_on_demand as an argument ******************************************************************************************/ void init healthtrackingservice healthtrackingservice { //"todo 3" } perform measurement for the client app to start obtaining the data through the sdk, it has to set a listener method on the healthtracker the application setups the listener when the user taps on the measure button each time there is new data, the listener callback receives it after the measurement is completed, the listener has to be disconnected due to battery drain, on-demand measurement should not last more than 30 seconds the measurement is cancelled if the final value is not delivered in time note that the sensor needs a few seconds to warm up and provide correct values, which adds to the overall measurement time the blood oxygen level values come in the ondatareceived callback of trackereventlistener in spo2listener java file, you can see the code for reading the value private final healthtracker trackereventlistener spo2listener = new healthtracker trackereventlistener { @override public void ondatareceived @nonnull list<datapoint> list { for datapoint data list { updatespo2 data ; } } }; private void updatespo2 datapoint data { int status = data getvalue valuekey spo2set status ; int spo2value = 0; if status == measurement_completed spo2value = data getvalue valuekey spo2set spo2 ; observerupdater getobserverupdater notifytrackerobservers status, spo2value ; } 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 instructions below on how to run unit tests right click on com samsung health spo2tracking test and execute run 'tests in 'com samsung health spo2tracking'' command 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 application on a connected device to measure blood oxygen level right after the app is started, it requests for user permission allow the app to receive data from the body sensors afterwards, it shows the application's main screen to get the blood oxygen level, tap on the measure button to stop the measurement, tap on the stop button you're done! congratulations! you have successfully achieved the goal of this code lab now, you can create a health app that measures blood oxygen level by yourself! if you're having trouble, you may download this file measuring blood oxygen level complete code 146 2 kb to learn more about samsung health, visit developer samsung com/health
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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 148 0 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 will display as on the image below afterwards, developer options will 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 will 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 on your watch go to settings > apps > health platform quickly tap health platform title for 10 times this enables developer mode and displays [dev mode] below the title to stop using developer mode, quickly tap health platform title for 10 times to disable it 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 ; } 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 will find an additional unit tests package this will let 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 skintemptrackin" 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 data from the body sensors afterwards, the screen shows the application tap the measure button to get your skin temperature to stop measuring, tap on the stop button 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 project 147 8 kb to learn more about samsung health, visit developer samsung com/health
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codelabmeasure blood oxygen level and heart rate on galaxy watch objective create a health app for galaxy watch, operating on wear os powered by samsung, utilizing samsung health sensor sdk to trigger and obtain results of simultaneous blood oxygen level spo2 and heart rate measurements 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 latest bioactive 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 watch4 or newer 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! measuring blood oxygen level and heart rate sample code 159 2 kb connect your galaxy watch to wi-fi go to settings > connection > wi-fi and make sure that 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 will display as on the image below afterwards, developer options will be visible under settings tap developer options and enable the following options adb debugging in developer options find 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 will 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 on your watch go to settings > apps > health platform quickly tap health platform title for 10 times this enables developer mode and displays [dev mode] below the title to stop using developer mode, quickly tap health platform title for 10 times to disable it start your project in android studio, click open to open existing project locate the downloaded android project from the directory and click ok establish service connection and check capabilities for the device to track data with the samsung health sensor sdk, it must connect to the service by healthtrackingservice api after establishing a connection, verify if the required tracker type is available to check this, get the list of available tracker types and verify that the tracker is on the list in this code lab, you will utilize blood oxygen level and heart rate trackers the healthtrackingservice api usage is in the table below healthtrackingservicehealthtrackingservice initiates a connection to samsung's health tracking service and provides a healthtracker instance to track a healthtrackertype public void connectservice establish a connection with samsung's health tracking service public void disconnectservice release a connection for samsung's health tracking service public healthtrackercapability gettrackingcapability provide a healthtrackercapability instance to get a supporting health tracker type list initialize multiple trackers before the measurement starts, initialize the spo2 tracker by obtaining the proper health tracker object in the connectionmanager java file, navigate to initspo2 , create an oxygen saturation healthtracker instance, and pass it to the spo2listener instance get the healthtracker object using the healthtrackingservice api use the healthtrackertype spo2_on_demand type as parameter healthtrackingservicehealthtrackingservice initiates a connection to samsung's health tracking service and provides a healthtracker instance to track a healthtrackertype public healthtracker gethealthtracker healthtrackertype healthtrackertype provide a healthtracker instance for the given healthtrackertype pass the healthtracker object to the spo2listener instance object spo2listener public void sethealthtracker healthtracker tracker set healthtracker instance for the given tracker /******************************************************************************************* * [practice 1] create blood oxygen level health tracker object * - get health tracker object * - pass it to spo2listener ------------------------------------------------------------------------------------------- * - hint replace todo 1 with parts of code * 1 get healthtracker object using healthtrackingservice gethealthtracker * use healthtrackertype spo2_on_demand type as parameter * 2 pass it to spo2listener using sethealthtracker function ******************************************************************************************/ public void initspo2 spo2listener spo2listener { //"todo 1 1 " //"todo 1 2 " sethandlerforbaselistener spo2listener ; } next, in the connectionmanager java file, in the initheartrate function, create a heart rate healthtracker instance, and pass it to the heartratelistener instance get the healthtracker object using the healthtrackingservice api use the healthtrackertype heart_rate_continuous type as parameter pass the healthtracker object to the heartratelistener instance object heartratelistener public void sethealthtracker healthtracker tracker set healthtracker instance for the given tracker /******************************************************************************************* * [practice 2] create heart rate health tracker object * - get health tracker object * - pass it to heartratelistener ------------------------------------------------------------------------------------------- * - hint replace todo 2 with parts of code * 1 get healthtracker object using healthtrackingservice gethealthtracker * use healthtrackertype heart_rate_continuous type as parameter * 2 pass it to heartratelistener using sethealthtracker function ******************************************************************************************/ public void initheartrate heartratelistener heartratelistener { //"todo 2 1 " //"todo 2 2 " sethandlerforbaselistener heartratelistener ; } start and stop trackers for the client app to start obtaining the data through the sdk, set a listener method on healthtracker this method will be called every time there is new data after the measurement completes, the listener has to be disconnected to start measurement in the baselistener java file, navigate to starttracker function, and set trackereventlistener as listener healthtracker object set an event listener on healthtracker object using healthtracking api use the healthtracker trackereventlistener object instance as parameter 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 this healthtracker instance /******************************************************************************************* * [practice 3] start health tracker by setting event listener * - set event listener on health tracker ------------------------------------------------------------------------------------------- * - hint replace todo 3 with parts of code * set event listener on healthtracker object using healthtracker seteventlistener * use trackereventlistener object as parameter ******************************************************************************************/ public void starttracker { log i app_tag, "starttracker called " ; log d app_tag, "healthtracker " + healthtracker tostring ; log d app_tag, "trackereventlistener " + trackereventlistener tostring ; if !ishandlerrunning { handler post -> { //"todo 3" sethandlerrunning true ; } ; } } to stop measurement, unset the trackereventlistener from the healthtracker object in the stoptracker function unset the event listener on healthtracker object using healthtracking api 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 /******************************************************************************************* * [practice 4] stop health tracker by removing event listener * - unset event listener on health tracker ------------------------------------------------------------------------------------------- * - hint replace todo 4 with parts of code * unset event listener on healthtracker object using healthtracker unseteventlistener ******************************************************************************************/ public void stoptracker { log i app_tag, "stoptracker called " ; log d app_tag, "healthtracker " + healthtracker tostring ; log d app_tag, "trackereventlistener " + trackereventlistener tostring ; if ishandlerrunning { //"todo 4" sethandlerrunning false ; handler removecallbacksandmessages null ; } } process obtained and batching data the response from the platform will be asynchronous with the results you want to obtain follow the steps below to get blood oxygen level and heart rate data in the spo2listener java file, navigate to updatespo2 function, and read spo2 data from datapoint get the oxygen saturation status using the datapoint api key valuekey spo2set status get the oxygen saturation value using the datapoint api key valuekey spo2set spo2 datapointdatapoint provides a map of valuekeyand value with a timestamp public <t>t getvalue valuekey<t> type get data value for the given key /******************************************************************************************* * [practice 5] read values from datapoint object * - get blood oxygen level status * - get blood oxygen level value ------------------------------------------------------------------------------------------- * - hint replace todo 5 with parts of code * 1 remove spo2status calculating and * set status from 'datapoint' object using datapoint getvalue valuekey spo2set status * 2 set spo2value from 'datapoint' object using datapoint getvalue valuekey spo2set spo2 * if status is 'spo2status measurement_completed' ******************************************************************************************/ public void updatespo2 datapoint datapoint { int status = spo2status calculating; //"todo 5 1 " int spo2value = 0; //"todo 5 2 " trackerdatanotifier getinstance notifyspo2trackerobservers status, spo2value ; log d app_tag, datapoint tostring ; } in the heartratelistener java file, navigate to readvaluesfromdatapoint function, and read the heart rate data from datapoint get heart rate status using datapoint api key valuekey heartrateset heart_rate_status get heart rate value using datapoint api key valuekey heartrateset heart_rate get heart rate ibi value using datapoint api key valuekey heartrateset ibi_list get ibi quality using datapoint api key valuekey heartrateset ibi_status_list /******************************************************************************************* * [practice 6] read values from datapoint object * - get heart rate status * - get heart rate value * - get heart rate ibi value * - check retrieved heart rate’s ibi and ibi quality values ------------------------------------------------------------------------------------------- * - hint replace todo 6 with parts of code * 1 set hrdata status from 'datapoint' object using datapoint getvalue valuekey heartrateset heart_rate_status * 2 set hrdata hr from 'datapoint' object using datapoint getvalue valuekey heartrateset heart_rate * 3 set local variable 'list<integer> hribilist' using datapoint getvalue valuekey heartrateset ibi_list * 4 set local variable 'final list<integer> hribistatus' using datapoint getvalue valuekey heartrateset ibi_status_list * 5 set hrdata ibi with the last of 'hribilist' values * 6 set hrdata qibi with the last of 'hribistatus' values ******************************************************************************************/ public void readvaluesfromdatapoint datapoint datapoint { heartratedata hrdata = new heartratedata ; //"todo 6 1 " //"todo 6 2 " //"todo 6 3 " //"todo 6 4 " //"todo 6 5 " //"todo 6 6 " trackerdatanotifier getinstance notifyheartratetrackerobservers hrdata ; log d app_tag, datapoint tostring ; } 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 instructions below on how to run unit tests right click on com samsung health multisensortracking test and execute run 'tests in 'com samsung health multisensortracking'' command 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 application on a connected device to see blood oxygen level and heart rate values right after the app is started, it requests for user permission allow the app to receive data from the body sensors afterwards, it shows the application's main screen and automatically display the heart rate to get the blood oxygen level spo2 value, tap on the measure button to stop the measurement, tap on the stop button tap on the details label to see more heart rate data you're done! congratulations! you have successfully achieved the goal of this code lab now, you can create a health app that measures blood oxygen level and heart rate by yourself! if you're having trouble, you may download this file measuring blood oxygen level and heart rate complete code 158 8 kb to learn more about samsung health, visit developer samsung com/health
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apioverviewpackageclasstreedeprecatedindex samsung health sdk for android - data api reference 1 5 1 health data this document describes com samsung android sdk healthdata apis in samsung health sdk for android see description packages package description com samsung android sdk healthdata this package provides classes and interfaces for the health data framework in samsung health sdk for android health data this document describes com samsung android sdk healthdata apis in samsung health sdk for android the health data package contains classes and interfaces which enable you to create applications with the following functionalities health data store a partner app that uses samsung health sdk for android can write its health data to samsung health or read samsung health's data through the health data store connection see health data store for more information health data type the sdk provides useful predefined and custom data types see health data types for more information privacy data permission acquisition is required to access a specific data type see permission manager for more information for more information related to the development environment, fundamentals, features and sample descriptions, see programming guide compatible version of samsung health samsung health sdk for android works with samsung health the sdk's data library works properly with the specific samsung health version sdk's heath data library version samsung health compatible version 1 5 1 6 28 or above 1 5 0 6 12 or above 1 4 0 6 2 or above 1 3 0 5 11 or above 1 2 0 5 10 or above 1 0 0 4 0 or above e g if you create your app with the health data library 1 5 0, it requires to install samsung health 6 12 or above in the device if the sdk and samsung health's version is not matched, the sdk gives an error old_version_platform you can resolve the error simply and induce the users to update samsung health to the latest version here is a guide to prevent the related error connect to the health data store see healthdatastore connectservice private healthdatastore mstore; @override public void oncreate bundle savedinstancestate { // create a healthdatastore instance and set its listener mstore = new healthdatastore this, mconnectionlistener ; // request the connection to the health data store mstore connectservice ; } if it fails, check healthconnectionerrorresult onconnectionfailed private final healthdatastore connectionlistener mconnectionlistener = new healthdatastore connectionlistener { // @override public void onconnectionfailed healthconnectionerrorresult error { // } if the error is old_version_platform, it means that samsung health needs to be updated to the latest version show a proper message to the user @override public void onconnectionfailed healthconnectionerrorresult error { if error geterrorcode == healthconnectionerrorresult old_version_platform { // show a message to the user to update samsung health } } check a resolution for the error with healthconnectionerrorresult hasresolution if it gives true, resolve the error with healthconnectionerrorresult resolve if error hasresolution { // if there is a solution, resolve it error resolve mainactivity this ; } the samsung health platform leads to upgrade samsung health on the app market see its example exception handing
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codelabtrack deadlift exercise on galaxy watch objective create a native app for galaxy watch, operating on wear os powered by samsung, using health services to track deadlift exercise this app measures repetition count, calories burned, and time spent during the exercise overview health services provides a simple and unified way for accessing a wide range of health and wellness related data with health services api, you will no longer need to develop your own algorithms processing sensors data in order to compute metrics like heart rate, steps counts, distance, calories burned, and other more these are now accessible through health services embedded on wearables operating on wear os powered by samsung see health platform descriptions for detailed information set up your environment you will need the following galaxy watch4 or newer 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! health track deadlift sample code 132 83 kb 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 will display as on the image below afterwards, developer options will be visible under settings tap developer options and enable the following options adb debugging debug over wi-fi turn off automatic wi-fi connect your galaxy watch to wi-fi go to settings > connection > wi-fi and make sure that wi-fi is enabled from the list of available wi-fi networks, choose and connect to the same one as your pc when successfully connected, tap a wi-fi network name, swipe down, and note the ip address you will need this to connect your watch over adb from your pc connect your galaxy watch to android studio in android studio, go to terminal and type adb connect <ip address as mentioned in previous step> when prompted, tap always allow from this computer to allow debugging upon successful connection, you will 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 start your project after downloading the sample code containing the project files, open your android studio and click open to open an existing project locate the downloaded android project deadlift from the directory and click ok check dependency and app manifest in the dependencies section of gradle scripts > build gradle module app file, see the appropriate dependency for health services dependencies { implementation 'androidx health health-services-client 1 0 0-beta03' // } notesince the library might update from time to time, it is recommended to choose the version suggested by android studio in androidmanifest xml file, note the following <queries> element <queries> <package android name="com google android wearable healthservices" /> </queries> section with requests for necessary permissions <uses-permission android name="android permission body_sensors" /> <uses-permission android name="android permission activity_recognition" /> check capabilities to check what can be measured during an exercise, you need to check its capabilities go to app > java > com samsung sdc21 deadlift open the deadliftutil java file and navigate to the checkcapabilities method an inner class c definition implements the methods of the futurecallback interface within this definition, define the onsuccess method to retrieve the exercise type capabilities public void onsuccess exercisecapabilities result { objects requirenonnull result ; log i tag, "got exercise capabilities" ; /*********************************************************************************** * [practice 1] define the onsuccess method * * - hint uncomment lines below and replace todo 1 * call getexercisetypecapabilities method of result object, * passing already initialized t as an argument **********************************************************************************/ final exercisetype t = exercisetype deadlift; // final exercisetypecapabilities capabilities = "todo 1" // final exerciseconfig builder builder = exerciseconfig builder t ; // builder setdatatypes capabilities getsupporteddatatypes ; // exerciseconfigbuilder = builder; } next, implement the findcapabilitesfuture method to get a callback with exercisecapabilities getcapabilitiesasync returns the exercisecapabilities of the exerciseclient for the device static listenablefuture<exercisecapabilities> findcapabilitiesfuture exerciseclient client { /******************************************************************************************* * [practice 1] create a listenablefuture object that will get a callback with * with exercise capabilities choose the correct method from exerciseclient * * - hint uncomment line and replace null with todo 2 * for checking capabilities use getcapabilitiesasync method ******************************************************************************************/ return null; //"todo 2"; } start the exercise inside the startexercise method, there is a call to the futures addcallback method this method adds a callback function that executes when the asynchronous operation of starting the exercise completes set an update callback for the exercise client within the onsuccess method of the callback function public void onsuccess void result { log i tag, "successfully started" ; /*************************************************************************** * [practice 2] set an update callback * * - hint uncomment lines below and fill todos * 1 make appropriate call of setupdatecallback method * and pass exerciseupdatelistener object as an argument * 2 change ismeasurementrunning flag value to true **************************************************************************/ // exerciseclient setupdatecallback "todo 3 1 " ; log i tag, "successfully set update listener" ; // "todo 3 2 " } in the deadlift java file, call the startexercise method in onbuttonclickhelper public void onbuttonclickhelper { /******************************************************************************************* * [practice 2] start the exercise using a method from deadliftutil java * * - hint uncomment line below and fill todo 4 * call startexercise method on util object * ****************************************************************************************/ // "todo 4" } get the results go to the deadliftutil java file, and in the getnewrepsvalue method, call the getlatestmetrics method from the exerciseupdate class to get the data collected during the exercise store the data in the resultlist, where the last element holds the most up-to-date value of all your repetitions public long getnewrepsvalue exerciseupdate update, deltadatatype<long, intervaldatapoint<long>> datatype { /******************************************************************************************* * [practice 3] get the data collected during exercise * * - hint uncomment lines below and fill todo 5 * call getlatestmetrics method of exerciseupdate object * then, get the data of appropriate type * for this, you can use dedicated method getdata , passing datatype as an argument * ****************************************************************************************/ // final list<intervaldatapoint<long>> resultlist = "todo 5" // if !resultlist isempty { // final int lastindex = resultlist size - 1; // return resultlist get lastindex getvalue ; // } return no_new_value; } run unit tests for your convenience, you will find an additional unit tests package this will let you verify your code changes even without using a physical watch see instruction below on how to run unit tests right click on com samsung sdc21 deadlift test > deadliftunittest and execute run 'deadliftunittest' command if you completed all the tasks correctly, you will see all the unit tests passed successfully run the app after building the apk, you can run the application on a connected device to measure actual deadlift parameters right after the app is started, it will request for the user permission allow the app to receive data of the activity afterwards, the application main screen will be shown before doing deadlifts, press the start button to track your exercise when done, tap on the stop button you're done! congratulations! you have successfully achieved the goal of this code lab now, you can create a deadlift exercise tracker app by yourself! if you're having trouble, you may download this file health track deadlift complete code 132 42 kb learn more by going to health platform
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