package com.jackie.immersive; 
 
import android.os.Build; 
import android.os.Bundle; 
import android.support.v7.app.AppCompatActivity; 
import android.view.View; 
 
public class MainActivity extends AppCompatActivity { 
 
  @Override 
  protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
  } 
 
  @Override 
  public void onWindowFocusChanged(boolean hasFocus) { 
    super.onWindowFocusChanged(hasFocus); 
    if (hasFocus && Build.VERSION.SDK_INT >= 19) { 
      View decorView = getWindow().getDecorView(); 
      decorView.setSystemUiVisibility( 
          View.SYSTEM_UI_FLAG_LAYOUT_STABLE 
              | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION 
              | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN 
              | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION 
              | View.SYSTEM_UI_FLAG_FULLSCREEN 
              | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY); 
    } 
  } 
}