objective-c - 如何在消息框 objective-c 中显示文本框

Question

当用户按下主 Storyboard 中的按钮时，我想显示包含标签和文本框以及确定按钮和取消按钮的消息框，并在用户按下 IOS 上的确定后获取文本框中的字符串？

我知道如何显示错误消息或类似的东西，但我不知道如何显示那样的消息框？

Answer 1

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Save"
                                                        message:@"Enter File Name"
                                                       delegate:self
                                              cancelButtonTitle:@"Cancel"
                                              otherButtonTitles:@"OK", nil];

    alertView.alertViewStyle = UIAlertViewStylePlainTextInput;

    [alertView show];



- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex
{
    NSLog(@"Alert View dismissed with button at index %d",buttonIndex);

    switch (alertView.alertViewStyle)
    {
        case UIAlertViewStylePlainTextInput:
        {
            UITextField *textField = [alertView textFieldAtIndex:0];
            NSLog(@"Plain text input: %@",textField.text);
        }
            break;

        case UIAlertViewStyleSecureTextInput:
        {
            UITextField *textField = [alertView textFieldAtIndex:0];
            NSLog(@"Secure text input: %@",textField.text);
        }
            break;

        case UIAlertViewStyleLoginAndPasswordInput:
        {
            UITextField *loginField = [alertView textFieldAtIndex:0];
            NSLog(@"Login input: %@",loginField.text);

            UITextField *passwordField = [alertView textFieldAtIndex:1];
            NSLog(@"Password input: %@",passwordField.text);
        }
            break;

        default:
            break;
    }
}