Solved: full screen android

Full screen Android applications have gained popularity due to their immersive user experience. This approach allows every pixel on the screen to contribute towards the app, providing a more engaging interaction for the user. However, developing such apps poses a unique set of challenges which require innovative solutions.

The primary challenge in creating full screen applications is managing system UI visibility i.e., the status bar, navigation bar and other system UI components. The default setting on Android devices is to show system UI. As a developer, your task involves overriding the default setting and manually controlling the visibility of system UI components.

Key Solution

The solution to this problem involves tweaking system UI flags available in the Android platform. The WindowManager.LayoutParams class in Android provides a set of flags that can help in creating an immersive user experience.

// Full screen mode
WindowManager.LayoutParams attrs = getWindow().getAttributes();

attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;

getWindow().setAttributes(attrs);

This sets the application into full screen by applying window level adjustments.

Step-by-step guide to Full Screen Android Applications

The steps to code a full-screen app involve:

• Fetching the current window attributes.
• Updating the flags to include FLAG_FULLSCREEN.
• Setting the updated attributes back to the window.

Following these steps, we can define our onCreate() method as follows:

@Override 
protected void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);

    // Full Screen mode
    WindowManager.LayoutParams attrs = getWindow().getAttributes();

    attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;

    getWindow().setAttributes(attrs);

    setContentView(R.layout.activity_fullscreen);
}

Related Libraries and Functions

In addition to the basic method above, Android provides substantial support for immersive full-screen mode through classes such as View and View.OnSystemUiVisibilityChangeListener. Using these tools, you can create seamless transitions between full-screen and normal mode, enabling richer interaction within your application.

A point to remember: Creating immersive apps goes beyond hiding system UI components. Careful thought should be given to handling user inputs, maintaining aspect ratio, and ensuring compatibility with different device configurations.

Understanding these different aspects and using them effectively will allow for the creation of immersive, engaging and successful full-screen Android applications.