android仿QQ长按气泡弹窗效果，仿IOS控件，支持跟随手指显示

参考： BubblePopupWindow：https://github.com/smuyyh/BubblePopupWindow PopupMenuView：https://github.com/kareluo/PopupMenuView Android仿QQ长按删除弹出框：https://blog.csdn.net/shangmingchao/article/details/50244161#

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