iOS复制链接到剪贴板

UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
pasteboard.string = self.shareLink;

点击按钮实现复制功能

UIPasteboard *pab = [UIPasteboard generalPasteboard];
NSString *string = @"测试";
[pab setString:string];
 if (pab == nil) {
  [MBProgressHUD showError:@"复制失败"];
 }else
 {      
  [MBProgressHUD showSuccess:@"已复制"];
 }