用法只要三句话 (动态增长item,不用管frame) 提供block 回调

1. WLZShareController *share =[[WLZShareController alloc]init];
2. [share addItem:@"11" icon:@"WLZ_wechat" block:^(WLZBlockButton *btn) {
NSLog(@"111");
}];


3 [share show];