别人整理的Android常用的第三方库整理
https://blog.csdn.net/qq_28616183/article/details/50832879
BadgeView(数字提示小红点)
支持自由定制外观、拖拽消除的MaterialDesign风格Android BadgeView TextView小红点:https://github.com/wolfking0608/BadgeView
悬浮按钮
https://github.com/18337129968/FloatViewDmo
https://github.com/laocaixw/SuspendButtonLayout