UIAlertView 已弃用：首先在 iOS 9.0 中弃用 - UIAlertView 已弃用。将 UIAlertController 与首选样式一起使用

Posted 2023-02-23

【中文标题】UIAlertView 已弃用：首先在 iOS 9.0 中弃用 - UIAlertView 已弃用。将 UIAlertController 与首选样式一起使用

【英文标题】：UIAlertView is deprecated : first deprecated in iOS 9.0 - UIAlertView is deprecated. Use UIAlertController with a preferredStyle

【发布时间】：2017-01-03 09:00:34

【问题描述】：

如何更改适合上述ios 9 的obj c 代码？当我将 X Code 更新到 8.2.1 时出现此错误。代码如下

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

    NSString *title = [alertView buttonTitleAtIndex:buttonIndex];

    if([title isEqualToString:@"Continue"])
        NSLog(@"Continue...");
        [self performSegueWithIdentifier:@"createlogin" sender:self];
    

错误：

UIAlertView 已弃用：在 iOS 9.0 中首次弃用 - UIAlertView 已弃用。将 UIAlertController 与 preferredStyle 一起使用 UIAlertControllerStyleAlert 代替

谢谢。

【问题讨论】：

UIAlertView first deprecated IOS 9的可能重复

【参考方案1】：

 UIAlertController * alert = [UIAlertController alertControllerWithTitle:@"Add Title" message:@"Add Message" preferredStyle:UIAlertControllerStyleAlert];
     UIAlertAction * actionOK = [UIAlertAction actionWithTitle:@"Button Title" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) 
                        //Here Add Your Action
                    ];
     UIAlertAction * actionCANCEL = [UIAlertAction actionWithTitle:@"Second Button Title" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) 
                        //Add Another Action
                    ];


               [alert addAction:actionOK];
             [alert addAction:actionCANCEL];

   [self presentViewController:alert animated:YES completion:nil];

如果有需要请使用此方法，更多信息请使用此链接http://useyourloaf.com/blog/uialertcontroller-changes-in-ios-8/

【参考方案2】：

使用此代码

UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Title" message:@"Message" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction * continueButton = [UIAlertAction actionWithTitle:@"Continue" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action)
      [self performSegueWithIdentifier:@"createlogin" sender:self];
  ];
 UIAlertAction * cancelButton = [UIAlertAction actionWithTitle:@"cancel" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action)

  ];
[alert addAction:continueButton];
[alert addAction:cancelButton];
[self presentViewController:alert animated:YES completion:nil];

【参考方案3】：

试试这个：

UIAlertController *controller = [UIAlertController alertControllerWithTitle:@"Your message title"
                                                                                message:@"Enter your message here."
                                                                         preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action)
 
     NSLog(@"Ok Action");
 ];
UIAlertAction* cancelAction = [UIAlertAction actionWithTitle:@"Skip" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action)
 
     NSLog(@"Cancel Action");
];

[controller addAction:okAction];
[controller addAction:cancelAction];
[self presentViewController:alertController animated:YES completion:nil];