Remove the title bar of Android to enable full screen and rotate the screen.

Remove the title bar of Android to enable full screen and rotate the screen.

This is a very common problem. In fact, it is very simple. I will not talk about it much, but I will go directly to the code.

Public class MainActivity extends Activity {@ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); requestWindowFeature (Window. FEATURE_NO_TITLE); // remove the title getWindow (). setFlags (WindowManager. layoutParams. FLAG_FULLSCREEN, WindowManager. layoutParams. FLAG_FULLSCREEN); // setContentView (R. layout. activity_main); Button Btn = (Button) findViewById (R. id. btn); Btn. setOnClickListener (new View. onClickListener () {@ Override public void onClick (View arg0) {Configuration Cfg = getResources (). getConfiguration (); if (Cfg. orientation = Configuration. ORIENTATION_LANDSCAPE) // If the screen is landscape {MainActivity. this. setRequestedOrientation (ActivityInfo. SCREEN_ORIENTATION_PORTRAIT);} else if (Cfg. orientation = Configuration. ORIENTATION_PORTRAIT) // if it is a portrait screen {MainActivity. this. setRequestedOrientation (ActivityInfo. SCREEN_ORIENTATION_LANDSCAPE );}}});}

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