Creating Your First App

The flexibility of Tizen is not limited to mobile devices but extends to other devices, including the Galaxy Watch. This can be translated to developing applications that can be built using a Native or a Web approach. Whether you are a serious developer or a hobbyist, C or HTML5, building a Tizen app can suit your programming style that can be implemented across platforms.

Galaxy Watch Applications

Build your first Galaxy Watch app Web | Native | .NET

Follow these contents enabling you to get to know the Galaxy Watch Application Development. Create a HelloWorld sample application to see what Tizen can offer.

Create your Native Watch Face

The watch face is the main screen that the user will see every time they interact with the Galaxy Watch. This guide is focused on Native development, though, designing the Watch Face can be either be done Native or by Web manually.

Build Widget Board Web | Native

Widgets act as display relevant information and actions that are shortcuts to the actual applications. These can be applied onto the Galaxy Watch applications. Widgets for Galaxy Watch are perfect for host applications that can be easily accessed.

Build your first companion-type application Web | Native | .NET

Companion-type applications mean an application model that needs data communication or interaction between an Android mobile application and a Galaxy Watch application. The communication protocol between the Galaxy Watch and mobile applications is called Samsung Accessory Protocol (SAP).

Web vs. Native vs. .NET

• Web application is essentially a Web site stored on your device and built using Web-native languages, such as HTML5, CSS, and JavaScript. The Web application uses the Tizen Web Framework to interact with the native subsystems.

• Native Application is developed using C and can access more advanced device-specific features, such as sensors, in addition to more advanced system settings and functionality.

• Tizen .NET enables you to build .NET applications with Xamarin.Forms and the Tizen .NET framework. Xamarin.Forms allows you to create a user interface.

The following figure illustrates the Tizen architecture model supporting the two application types.

Tizen architecture

Content

Build your first Galaxy Watch app

Web application	Native application	.NET application
Create a web app project Build a web app Run a web app Create a simple UI	Create a native app project Build a native app Run a native app Create a simple UI	Create a .NET app project Build a .NET app Deploying and Running a .NET app Enhancing .Net Application

Create your watch face

• Create a watch face app

• Build a watch face app

• Run a watch face app

• Create a simple UI

Build Native Widget Board

• Create a widget project

• Build a widget app

• Run a widget app

• Create a simple UI

Build your First Companion type application

Web application	Native application	.NET application
Set up SDK Create a web app project Use the Samsung Accessory Protocol API Interact with the application on the Android device Build a simple UI Run a web app Use the Accessory SDK in Android	Set up SDK Create a native app project Use the Samsung Accessory Protocol API Interact with the application on the Android device Build a simple UI Run a native app Use the Accessory SDK in Android	Setup SDK (Setup Visual Studio Tools for Tizen Installation) Creating a Project Use the Samsung Accessory Protocol API Interact with the application on the Android device Building Your Application Deploying and Running Your Application Use the Accessory SDK in Android