Question

我想我错过了一些明显的东西。我有UIAlertView来获取应用评论，但我无法让按钮做任何事情。我在UIAlertViewDelegate中调用了my.h，我还有一个UIAlertview，它只是在IBAction btn上，虽然刚刚取消btn但效果很好

我试过给alert.tag = 1但是从来没有任何区别所以我评论了我的第一个UIAlertview，所以我只有一个警报，仍然没有快乐。我想我错过了一些简单的东西。

我还尝试了alertview.cancelButtonIndex或alertview.firstOtherButtonIndex而不是0

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



    if (buttonIndex == 0) {
        NSLog(@"index 0 ");
    }
    else if (buttonIndex == 1) {
        NSLog(@"index 1 ");
        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"www.google.com"]];
        NSUserDefaults *rateApp = [NSUserDefaults standardUserDefaults];
        NSInteger appLaunch = [ rateApp integerForKey:@"appLaunch"];
        appLaunch = 0 ;
        [rateApp setInteger: appLaunch forKey:@"appLaunch"];
    }
    else if (buttonIndex == 2) {
        NSLog(@"index 2 ");
    }
}


- (void)viewDidLoad


{
    [super viewDidLoad];

    //rate app  appLaunch == 5 || appLaunch ==10
    NSUserDefaults *rateApp = [NSUserDefaults standardUserDefaults];
    NSInteger appLaunch = [ rateApp integerForKey:@"appLaunch"];
    if (appLaunch == 1  ) {
        UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Like this app ?" message:@"Why not rate at the app store" delegate:nil cancelButtonTitle:@"No thanks" otherButtonTitles:@"Yes",@"Remind me later", nil];
      //  alert.tag = 1;
        [alert show];
        }

感谢您的帮助。

Answer 1

如果要调用其委托方法，AlertView的delegate应该是self而不是nil。

使用此代码：

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Like this app ?" 
                      message:@"Why not rate at the app store"                                        
                      delegate:self 
                      cancelButtonTitle:@"No thanks" 
                      otherButtonTitles:@"Yes",@"Remind me later", nil];

UIAlertView buttonIndex不起作用

1 个答案: