1 UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"更新提示" message:[NSString stringWithFormat:@"%@",self.model.groups.update_content] preferredStyle: UIAlertControllerStyleAlert];
2
3 UIView *subView1 = alert.view.subviews[0];
4 UIView *subView2 = subView1.subviews[0];
5 UIView *subView3 = subView2.subviews[0];
6 UIView *subView4 = subView3.subviews[0];
7 UIView *subView5 = subView4.subviews[0];
8 NSLog(@"%@",subView5.subviews);
9 //取title和message：
10 //UILabel *title = subView5.subviews[0];
11 UILabel *message = subView5.subviews[1];
12 message.textAlignment = NSTextAlignmentLeft;
13
14
15
16 [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
17
18 }]];
19
20 [alert addAction:[UIAlertAction actionWithTitle:@"去更新" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
21 //点击按钮的响应事件；
22 NSURL *url = [NSURL URLWithString:@"http://itunes.apple.com/cn/app/id1198896188?mt=8"];
23
24 [[UIApplication sharedApplication]openURL:url];
25 }]];
26
27 //弹出提示框；
28 [self presentViewController:alert animated:true completion:nil];
