android Activity 全屏隐藏虚拟键盘

• if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
      View decorView = getWindow().getDecorView();
      decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
              | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
              | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
              | View.SYSTEM_UI_FLAG_FULLSCREEN
              | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
              | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
   }
  

  　　
• 此方法不会屏蔽，用户通过下拉屏幕还是可以调出虚拟键盘等