'UIAlertView' is deprecated的解决例子

如下代码，

 UIAlertView *alertView=[[UIAlertView alloc]initWithTitle:@"提示" message:@"恭喜你答对了" delegate:nil cancelButtonTitle:@"点击取消" otherButtonTitles:nil];                [alertView show];

会提示：

把代码修改成：

UIAlertController *aleView=[UIAlertController alertControllerWithTitle:@"提示" message:@"恭喜你答对了" preferredStyle:UIAlertControllerStyleAlert];        UIAlertAction *cancel=[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];        [aleView addAction:cancel];                [self presentViewController:aleView animated:YES completion:nil];

报错消失：

运行后效果如图