Solved_مخفی کردن MenuBar در اندروید (FullScreen.NoTitleBar & No MenuBar)

ممنون از جناب نصرتی عزیز < جواب سوال :

من کد زیر رو تست کردم جواب داد

 @Override
protected void onResume() {
super.onResume();

if ( Build.VERSION.SDK_INT >= 19) { //KITKAT

int flagImmersiveSticky = 4096; //View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY

int flags = flagImmersiveSticky
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;

this.findViewById(android.R.id.content).setSystemUiVisibility(flags);
    }
}

طبق گفته های خود گوگل <

This lesson describes how to hide the navigation bar, which was introduced in Android 4.0 (API level 14).

You can hide the navigation bar on Android 4.0 and higher using the SYSTEM_UI_FLAG_HIDE_NAVIGATION flag. This snippet hides both the navigation bar and the status bar:

 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);

 https://developer.android.com/training/system-ui/immersive.html

http://developer.android.com/training/system-ui/navigation.html