UIAlertView - 是/否条件

Question

我的应用程序需要提醒msg并使用是按钮单击另一个警报消息，它决定最终操作。 我使用过 - （void）alertView：（UIAlertView *）alertView didDismissWithButtonIndex：（NSInteger）buttonIndex 这种方法。

请帮帮我。

Answer 1

做@Adrian Pirvulescu所说的但是在显示警报之前做alert.tag = 1;然后在调用- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex时做：

if (alertView.tag == 1) {
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"2nd Alert" 
    message:@"My message" delegate:self cancelButtonTitle:@"Cancel"
    otherButtonTitles:@"OK", nil];
    alert.tag = 2;
    [alert show];
    [alert release];
}
else if (alertView.tag == 2) {
    [self CallSomeMethod];
}
else {
    //do what ever you want here
}

Answer 2

检查一下 http://www.timeister.com/2010/06/objc-show-alert-iphone/

// open a alert with an OK and cancel button
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"UIAlertView" 
        message:@"My message" delegate:self cancelButtonTitle:@"Cancel"
        otherButtonTitles:@"OK", nil];
[alert show];
[alert release];