Android 实现在屏幕左上方显示一个图片

 片段：

  wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);  // muteFlag = true;  WindowManager.LayoutParams params = new WindowManager.LayoutParams();  params.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;  params.width = WindowManager.LayoutParams.WRAP_CONTENT;  params.height = WindowManager.LayoutParams.WRAP_CONTENT;  params.format = PixelFormat.RGBA_8888;  params.gravity = Gravity.TOP | Gravity.LEFT;  params.x = 85;  params.y = 25;  LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);  muteView = inflater.inflate(R.layout.mute, null);   wm.addView(muteView, params);

 mute.xml是layout文件