public class MainActivity extends Activity {  

    @SuppressLint("InlinedApi")  

    @Override  

    protected void onCreate(Bundle savedInstanceState) {  

        super.onCreate(savedInstanceState);  

        getWindow().requestFeature(Window.FEATURE_NO_TITLE);  

        if(VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP) {  

            Window window = getWindow();  

            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS  

                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);  

            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN  

                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION  

                            | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);  

            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);  

            window.setStatusBarColor(Color.TRANSPARENT);  

            window.setNavigationBarColor(Color.TRANSPARENT);  

        }  

        setContentView(R.layout.activity_main);  

    }  

}