How do I access the input from my text field in UIAlertController with objective c?

Question

I\'m changing everything over from AlertView to AlertController, but I can\'t find anything online for objective c that retrieves what the user inputs in a text field for th

Answer 1

In my case I am re-using the AlertController at various points in the script so in my header .h file I made it global:

 UIAlertController *alertController;

And then in my implementation .m file I assign it to the current alert like this:

 alertController = (UIAlertController *)self.presentedViewController;

The above retrieves the existing alert and assigns it to the global. For this to work you first need to initialize it or create a new one:

 UIAlertController* anyALERTname = [UIAlertController alertControllerWithTitle:@"Alert Title" message:yourAlertMessage preferredStyle:UIAlertControllerStyleAlert];

Now that you have the current AlertController, you can reach out to (and grab) the TextField:

 if (alertController) {

    //go and get the action field

    UITextField *alertText1 = alertController.textFields.firstObject;

    NSLog(@"what is alert text? %@",alertText1.text);


}

Answer 2

The UIAlertController has an array of textFields that are ordered by when you added them (the first one you added is index 0). Since it is a generic array, you will have to cast the result before accessing the text field.

__weak UIAlertController *alertRef = alertController;
UIAlertAction* okAction = [UIAlertAction actionWithTitle:@"Button Text"
                                         handler:^(UIAlertAction * action) {
                                             // access text from text field
                                             NSString *text = ((UITextField *)[alertRef.textFields objectAtIndex:0]).text;
                                         }];