uibutton添加边角提示

iOS开发中，给uibutton添加边角提示，也就是手机app图标右上角上常见的消息数量提醒，我们也来实现一下，代码如下：

UILabel *label = [[UILabelalloc]initWithFrame:

   CGRectMake(cell.cellButton1.bounds.origin.x+55,

   cell.cellButton1.bounds.origin.y-2,15,15)];

label.text= [NSStringstringWithFormat:@"%d",99];

label.backgroundColor=[UIColorredColor];

label.textColor= [UIColorwhiteColor];

label.textAlignment= NSTextAlignmentCenter;

label.font=[UIFontfontWithName:@"Arial"size:11];

label.layer.cornerRadius = 7.9;

label.layer.masksToBounds = YES;

[cell.cellButton1addSubview:label];