对同一个应用程序使用UIAlertView和UIAlertController

Question

我想显示提醒。但由于uialertView已被弃用于iOS 8，我该怎么做才能显示这两种操作系统的警报？

Answer 1

尝试使用此代码段在iOS8中显示警报视图。这肯定会有效。


- （IBAction）btn1Clicked：（UIButton *）sender {

//警报风格
     UIAlertController * alert = [UIAlertController alertControllerWithTitle：@“ALERT！”消息：@“你会做什么？”的 preferredStyle：UIAlertControllerStyleAlert ];

__weak ViewController *wself = self;

// Make choices for the user using alert actions.
**UIAlertAction** *doSomethingAction = [UIAlertAction actionWithTitle:@"I'm doing something" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
    __strong ViewController *sself = wself;
    sself.alertResponseLabel.text = @"You did something!";
}];

 UIAlertAction *doNothingAction = [UIAlertAction actionWithTitle:@"I'm totally ignoring this" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
    __strong ViewController *sself = wself;
    sself.alertResponseLabel.text = @"OK, just ignore me...";
}];

// Add actions to the controller so they will appear
[**alert addAction:doSomethingAction];
[alert addAction:doNothingAction];**
 alert.view.tintColor = [UIColor blackColor];
**[self presentViewController:alert animated:YES completion:nil];**  }