一个app中保持程序全屏的方法。

 public void toggleFullscreen(boolean fullScreen)
  {
   //fullScreen为true时全屏 

      WindowManager.LayoutParams attrs = getWindow().getAttributes();  

      if (fullScreen)
      {
          attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
      }
      else
      {
          attrs.flags &= ~WindowManager.LayoutParams.FLAG_FULLSCREEN;
      }  

      getWindow().setAttributes(attrs);
  }