如何在Android应用程序中永久隐藏导航栏？

Question

I have a problem hiding navigation bar at the bottom of the screen in android. Every solution I've tried doesn't work exactly as I want it to work, except one. Modifying build.prop with new entry 'qemu.hw.mainkeys=1' worked ok, but it disables navigation bar for whole android system. Is there possibility to disable navigation bar like this only for one app?

Answer 1

Try this:

 View decorView = getWindow().getDecorView(); // Hide both the navigation bar and the status bar. // SYSTEM_UI_FLAG_FULLSCREEN is only available on Android 4.1 and higher, but as // a general rule, you should design your app to hide the status bar whenever you // hide the navigation bar. int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN; decorView.setSystemUiVisibility(uiOptions); 

(Source)

Answer 2

View decorView = getWindow().getDecorView();
int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
decorView.setSystemUiVisibility(uiOptions);

Use this code in onCreate(), it will hide status bar and navigation bar until users swipe down from top of the screen