UIAlertView(与UIActionSheet)-Bloc

为UIAlertView添加block支持

这里推荐一个开源的实现: https://github.com/jivadevoe/UIAlertView-Blocks

[[[UIAlertView alloc]initWithTitle:@"温馨提示" message:@"请填写信息" cancelButtonItem:[RIButtonItem itemWithLabel:@"取消" action:^{

}] otherButtonItems:[RIButtonItem itemWithLabel:@"确定" action:^{

}], nil] show];