悬浮窗位置问题

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WindowManager.LayoutParams wmParams = new WindowManager.LayoutParams();
        //获取的是WindowManagerImpl.CompatModeWrapper
        mWindowManager = (WindowManager)getSystemService(getApplication().WINDOW_SERVICE);

   Log.i(TAG, "mWindowManager--->" + mWindowManager);

//设置window type

wmParams.type = WindowManager.LayoutParams.TYPE_PHONE;

//设置图片格式，效果为背景透明

wmParams.format = PixelFormat.RGBA_8888;

//设置浮动窗口不可聚焦（实现操作除浮动窗口外的其他可见窗口的操作）

  wmParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;

 //调整悬浮窗显示的停靠位置为右侧底部

wmParams.gravity = Gravity.RIGHT | Gravity.BOTTOM;

// 以屏幕左上角为原点，设置x、y初始值，相对于gravity

  Display display = mWindowManager.getDefaultDisplay();

 Point size = new Point();        display.getSize(size);

 int width = size.x;

 int height = size.y;

  wmParams.x = 0;

 wmParams.y = height/7;

  //设置悬浮窗口长宽数据

   wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;

  wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;

这里说明下：wmParams.gravity = Gravity.RIGHT | Gravity.BOTTOM; 
Gravity.RIGHT wmParams.x = 0;表示距离右侧为0
Gravity.BOTTOM  wmParams.y = height/7;表示距离底部是屏幕高度的7/1
那我们的悬浮窗的位置就是在屏幕的右下方，距离底部高度是屏幕的7/1

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