ios - UIAlertView 处理文本字段

Question

我想做一个简单的 alertView 并询问电话号码...

   UIAlertView *message = [[UIAlertView alloc] initWithTitle:@"What is your phone number?"
                                                      message:nil
                                                     delegate:self
                                            cancelButtonTitle:@"Cancel"
                                            otherButtonTitles:@"Continue", nil];

    message.alertViewStyle = UIAlertViewStylePlainTextInput;
    UITextField* answerField = [message textFieldAtIndex:0];
    answerField.keyboardType = UIKeyboardTypeNumberPad;
    answerField.placeholder = @"+43 ...";

    [message show];

我必须在这里输入什么来检查带有数字的东西（比如 Mysql 等）

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

UITextField *textField = [alertView textFieldAtIndex:0];

    ?????????
    // Something like  if (textField == "090012345678") -> NSLog(@"WOW"); ...

   }

Answer 1

如果您不知道如何比较两个字符串是否相同，那么我建议您寻找一些有关 Objective-C 的基本教程。

if ([textField.text isEqualToString:@"090012345678"]) {
    NSLog(@"WOW");
}