Android影藏导航栏

  /**

     * 隐藏虚拟按键，并且全屏
     */
    public static void hideBottomUIMenu(Activity activity) {
    
    
        if (Build.VERSION.SDK_INT > 11 && Build.VERSION.SDK_INT < 19) {
    
     // lower api
            View v = activity.getWindow().getDecorView();
            v.setSystemUiVisibility(View.GONE);
        } else if (Build.VERSION.SDK_INT >= 19) {
    
    
            //for new api versions.
            View decorView = activity.getWindow().getDecorView();
            int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_FULLSCREEN;
            decorView.setSystemUiVisibility(uiOptions);
        }
    }