View未读消息数量

implementation 'q.rorbin:badgeview:1.1.3'//view未读数字

使用：

 private Badge mBadge;


 if (mBadge == null) {
         mBadge = new QBadgeView(context).bindTarget(findViewById(R.id.msg_num));
         mBadge.setBadgeTextSize(8, true);
         mBadge.setGravityOffset(3, true);
}
mBadge.setBadgeNumber(5);