android 全屏问题

[fengyoujie]

诸位好！
自定定义一个view.。view是添加到WindowsManager里面显示的。怎么实现全屏呢。我的代码如下：

public class CustomView extends View {
private WindowManager mWinMgr;
private WindowManager.LayoutParams mWinMgrParams;
public CustomView(Context context) {
		super(context);

////
/**加载布局文件*/
/////
mWinMgr = (WindowManager) mContext.getApplicationContext().getSystemService("window");	
		
		WindowManager.LayoutParams mWinMgrParams = new WindowManager.LayoutParams(
				WindowManager.LayoutParams.FLAG_FULLSCREEN, 
				WindowManager.LayoutParams.FLAG_FULLSCREEN,          
				            WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,               
				            WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
				            PixelFormat.TRANSLUCENT);
		mWinMgrParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT ;
		mWinMgrParams.gravity = Gravity.LEFT | Gravity.TOP;
		mWinMgrParams.y = 0;
		mWinMgrParams.x = 0;
		mWinMgrParams.alpha = 0.8f;
		mWinMgrParams.format = 1 ;
                mWinMgr.addView(this, mWinMgrParams);
} 

}

这个CustomView在activity加载后，数据更新时全屏显示。
目前的问题就是不能全屏显示。最上边的TitleBar不能去掉。因为业务需要，不能让activity全屏，但是让浮动的windowsManager全屏。这个怎么处理呢。谢谢！

[网络咖啡]

做成PopupWindow