iphone - 从未调用过 alertView didDismissWithButtonIndex

Question

第一次发帖，如有不妥请见谅。

我见过几个与此类似的问题，但没有一个问题相同。我正在运行 IOS 6.1 和 Xcode 4.6。问题是永远不会调用 didDismiss，只会调用 willDismiss。我的代码连同日志输出在下面。有什么想法吗？

#import "MenkLabUIAlertTestViewController.h"

@interface MenkLabUIAlertTestViewController ()

@end

@implementation MenkLabUIAlertTestViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.


}
- (IBAction)test:(id)sender {
    UIAlertView *av  = [[UIAlertView alloc] initWithTitle:@"Encrypting File(s)" message:@"Please wait..." delegate:self cancelButtonTitle:nil otherButtonTitles:nil, nil];
    //    UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
    [av show];
    [av dismissWithClickedButtonIndex:-1 animated:YES];
}

- (void) alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex {
    NSLog(@"willDISMIS");
}

- (void) alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {
    NSLog(@"didDISMIS");
   }


- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

日志输出:

2013-07-08 17:27:04.055 testUIAlertView[10534:11303] 将关闭

这只是一个测试应用程序，但是，它与我当前应用程序中存在的问题完全相同。

提前致谢。一整天都在为这件事绞尽脑汁!

Answer 1

我认为这是您显示的事实的产物，然后立即以相同的方法关闭警报 View ——您永远不会在真实的应用程序中实际执行此操作。如果您为警报 View 创建一个属性，然后进行如下测试，它工作正常:

- (IBAction)test:(id)sender {
    self.av  = [[UIAlertView alloc] initWithTitle:@"Encrypting File(s)" message:@"Please wait..." delegate:self cancelButtonTitle:nil otherButtonTitles:nil, nil];
    [self.av show];
    [self performSelector:@selector(dismissAlertView) withObject:nil afterDelay:1];
}


-(void)dismissAlertView {
    [self.av dismissWithClickedButtonIndex:-1 animated:YES];
}

- (void) alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex {
    NSLog(@"willDISMIS");
}

- (void) alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {
    NSLog(@"didDISMIS");
}