ios - 如何在 iOS 的 UIAlertView 中添加 3 个 UITextField？

Question

我想在 UIAlertView 中添加 3 个 TextField，例如 oldpassword、Newpassword、confirmpassword 这样的。这是我试过的代码

-(IBAction)changePswd:(id)sender
{
UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Change Password" message:@"Enter Your New Password" delegate:self cancelButtonTitle:@"cancel" otherButtonTitles:@"submit", nil];
[alertView setAlertViewStyle:UIAlertViewStyleLoginAndPasswordInput];
[[alertView textFieldAtIndex:0]setSecureTextEntry:YES];
[alertView textFieldAtIndex:0].keyboardType = UIKeyboardTypeDefault;
[alertView textFieldAtIndex:0].returnKeyType = UIReturnKeyDone;
[[alertView textFieldAtIndex:0]setPlaceholder:@"Enter Your Old Password"];
[[alertView textFieldAtIndex:1]setPlaceholder:@"Enter password"];
[[alertView textFieldAtIndex:2]setPlaceholder:@"Re-Enter Password"];
[alertView show];
}

它只显示两个文本框。

Answer 1

为此使用 UIAlertController。

UIAlertController *alertController = [UIAlertController
                                      alertControllerWithTitle:title
                                      message:message
                               preferredStyle:UIAlertControllerStyleAlert];

__block typeof(self) weakSelf = self;

//old password textfield
[alertController addTextFieldWithConfigurationHandler:^(UITextField *textField)
 {
     textField.tag = 1001;
     textField.delegate = weakSelf;
     textField.placeholder = @"Old Password";
     textField.secureTextEntry = YES;
     [textField addTarget:weakSelf action:@selector(alertTextFieldDidChange:)
         forControlEvents:UIControlEventEditingChanged];
 }];

//new password textfield
[alertController addTextFieldWithConfigurationHandler:^(UITextField *textField)
 {
     textField.tag = 1002;
     textField.delegate = weakSelf;
     textField.placeholder = @"New Password";
     textField.secureTextEntry = YES;

     }];

//confirm password textfield
[alertController addTextFieldWithConfigurationHandler:^(UITextField *textField)
 {
     textField.tag = 1003;
     textField.delegate = weakSelf;
     textField.placeholder = @"Confirm Password";
     textField.secureTextEntry = YES;
     [textField addTarget:weakSelf action:@selector(alertTextFieldDidChange:)
         forControlEvents:UIControlEventEditingChanged];
 }];

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

#pragma mark - UITextField Delegate Methods
- (void)alertTextFieldDidChange:(UITextField *)sender
{
   alertController = (UIAlertController *)self.presentedViewController;
   UITextField *firstTextField = alertController.textFields[0];
}