在 UIAlertView 中创建了 3 个 UITextField 但没有采取行动

Question

我创建了一个包含三 (3) 个 UITextField 的 UIAlertView。我如何获得 UIAlertView 的动作。 clickedButtonAtIndex 委托方法正在运行。

但是没有得到我在字段中输入的文本。有什么想法吗？ 在此先感谢。

UIView *v_alert = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 250, 100)];
    v_alert.tag=10;

UITextField *textField1 = [[UITextField alloc] initWithFrame:CGRectMake(10,0,252,25)];
textField1.borderStyle = UITextBorderStyleRoundedRect;
textField1.placeholder = @"Your Previous Password";
textField1.keyboardAppearance = UIKeyboardAppearanceAlert;
textField1.delegate = self;
textField1.tag=1;

[v_alert addSubview:textField1];

UITextField *textField2 = [[UITextField alloc] initWithFrame:CGRectMake(10,30,252,25)];
textField2.placeholder = @"Your New Password";
textField2.borderStyle = UITextBorderStyleRoundedRect;
textField2.keyboardAppearance = UIKeyboardAppearanceAlert;
textField2.delegate = self;
textField2.tag=2;

[v_alert addSubview:textField2];


UITextField *textField3 = [[UITextField alloc] initWithFrame:CGRectMake(10,60,252,25)];
textField3.placeholder = @"Email";
textField3.borderStyle = UITextBorderStyleRoundedRect;
textField3.keyboardAppearance = UIKeyboardAppearanceAlert;
textField3.delegate = self;
textField3.tag=3;

[v_alert addSubview:textField3];


alertV = [[UIAlertView alloc] initWithTitle:@"Change Password" message:@"" delegate:self cancelButtonTitle:@"NO" otherButtonTitles:@"YES", nil];
[alertV setValue:v_alert  forKey:@"accessoryView"];
alertV.tag==100;
alertV.delegate=self;

[alertV show];

在委托中：

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



       UITextField*txt1=[[[self.view viewWithTag:100] viewWithTag:10] viewWithTag:0];
     UITextField*txt2= [[[self.view viewWithTag:100] viewWithTag:10] viewWithTag:1];        
     UITextField*txt3= [[[self.view viewWithTag:100] viewWithTag:10] viewWithTag:2];

     NSLog(@"%@--%@--%@",txt1.text,txt2.text,txt3.text);
 }

Answer 1

首先设置textField委托

<UITextFieldDelegate>

然后我尝试了下面的代码

    NSString *strAddress = @"14 UPPER CIRCULAR ROAD, Singapore 058412";

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:strAddress delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil];

    UIView *v = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 250, 100)];

    UITextField *textField1 = [[UITextField alloc] initWithFrame:CGRectMake(10,0,252,25)];
    textField1.borderStyle = UITextBorderStyleRoundedRect;
    textField1.placeholder = @"Username";
    textField1.keyboardAppearance = UIKeyboardAppearanceAlert;
    textField1.delegate = self;
    [v addSubview:textField1];

    UITextField *textField2 = [[UITextField alloc] initWithFrame:CGRectMake(10,30,252,25)];
    textField2.placeholder = @"Password";
    textField2.borderStyle = UITextBorderStyleRoundedRect;
    textField2.keyboardAppearance = UIKeyboardAppearanceAlert;
    textField2.delegate = self;
    [v addSubview:textField2];


    UITextField *textField3 = [[UITextField alloc] initWithFrame:CGRectMake(10,60,252,25)];
    textField3.placeholder = @"Address";
    textField3.borderStyle = UITextBorderStyleRoundedRect;
    textField3.keyboardAppearance = UIKeyboardAppearanceAlert;
    textField3.delegate = self;
    [v addSubview:textField3];

    [alert setValue:v  forKey:@"accessoryView"];



    [alert show];

TextField 委托方法

 - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
 {
    NSLog(@"The delegate method is called");
    return YES;
 }

另见我的屏幕截图

输出结果为

  The delegate method is called

Answer 2

声明您的 3 TextField

UITextField *textField1, *textField2, *textField3;

然后用您的代码替换此代码。

 UIView *alertview = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 250, 250)];
    alertview.backgroundColor = [UIColor whiteColor];
    alertview.tag=10;
    textField1 = [[UITextField alloc] initWithFrame:CGRectMake(10,0,252,25)];
    textField1.borderStyle = UITextBorderStyleRoundedRect;
    textField1.placeholder = @"Your Previous Password";
    textField1.secureTextEntry = YES;
    textField1.keyboardAppearance = UIKeyboardAppearanceAlert;
    textField1.delegate = self;
    textField1.tag=1;

    [alertview addSubview:textField1];

    textField2 = [[UITextField alloc] initWithFrame:CGRectMake(10,30,252,25)];
    textField2.placeholder = @"Your New Password";
    textField2.secureTextEntry = YES;
    textField2.borderStyle = UITextBorderStyleRoundedRect;
    textField2.keyboardAppearance = UIKeyboardAppearanceAlert;
    textField2.delegate = self;
    textField2.tag=2;

    [alertview addSubview:textField2];


    textField3 = [[UITextField alloc] initWithFrame:CGRectMake(10,60,252,25)];
    textField3.placeholder = @"Email";
    textField3.borderStyle = UITextBorderStyleRoundedRect;
    textField3.keyboardAppearance = UIKeyboardAppearanceAlert;
    textField3.delegate = self;
    textField3.tag=3;

    [alertview addSubview:textField3];


    UIAlertView *alertV = [[UIAlertView alloc] initWithTitle:@"Change Password" message:@"" delegate:self cancelButtonTitle:@"NO" otherButtonTitles:@"YES", nil];
    [alertV setValue:alertview  forKey:@"accessoryView"];
    alertV.tag==100;
    alertV.delegate=self;

    [alertV show];

现在你的 UIAlertView 按钮方法

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == 0) {
        NSLog(@"Button No click");
    }
    if (buttonIndex == 1) {
         NSLog(@"Button Yes Cancel");
    }
    NSLog(@"%@--%@--%@",textField1.text,textField2.text,textField3.text);
}

输出： 宝石--Moradiya--Himmoradiya@gmail.com

Answer 3

这就是我接受的技巧。但标准方法是最新的 iOS：

 UIAlertController * alert=   [UIAlertController
                              alertControllerWithTitle:@"Change Password"
                              message:@""
                              preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction* ok = [UIAlertAction
                     actionWithTitle:@"OK"
                     style:UIAlertActionStyleDefault
                     handler:^(UIAlertAction * action)
                     {

                          UITextField *alertText1 = [alert.textFields objectAtIndex:0];
                         UITextField *alertText2 = [alert.textFields objectAtIndex:1];
                         UITextField *alertText3 = [alert.textFields objectAtIndex:2];


                         if(alertText1.text.length>0&&alertText1.text.length>0)
                         {
                             NSLog(@"Resolving UIAlert Action for tapping OK Button:%@-%@-%@",alertText1.text,alertText2.text,alertText3.text);

                             oldpPass=alertText1.text;

                             NewPass=alertText2.text;

                            [self update_password];

                         }

                         [alert dismissViewControllerAnimated:YES completion:nil];

                     }];
UIAlertAction* cancel = [UIAlertAction
                         actionWithTitle:@"Cancel"
                         style:UIAlertActionStyleDefault
                         handler:^(UIAlertAction * action)
                         {
                             NSLog(@"Resolving UIAlertActionController for tapping cancel button");
                             [alert dismissViewControllerAnimated:YES completion:nil];

                         }];

[alert addAction:ok];
[alert addAction:cancel];



[alert addTextFieldWithConfigurationHandler:^(UITextField * textField) {
    textField.placeholder = @"Enter old password";
    textField.accessibilityIdentifier = @"paswordTextField";
    textField.accessibilityLabel = @"passwordLabel";
}];

[alert addTextFieldWithConfigurationHandler:^(UITextField * textField) {
    textField.placeholder = @"Enter New password";
    textField.accessibilityIdentifier = @"paswordTextField";
    textField.accessibilityLabel = @"passwordLabel";
}];

[alert addTextFieldWithConfigurationHandler:^(UITextField * textField) {
    textField.accessibilityIdentifier = @"usernameTextField";
    textField.placeholder = @"Enter email";
    textField.text=self.emailTF.text;//
    textField.accessibilityLabel = @"usernameLabel";
}];

[self presentViewController:alert animated:YES completion:nil];

在 UIAlertView 中创建了 3 个 UITextField 但没有采取行动

Created 3 UITextField in UIAlertView but not getting action

objective-c

uialertview

ios