uitextfield

I have a UITextField in my application that is supposed to receive only numeric input from the user. This numeric input is supposed to represent currency (i.e. have only two decimal places), have the default value of 0.00 when nothing has been entered. I also would like to have a "$" sign that is on the far left, with the number right aligned, such that the number moves from right to left like such: e.g. when entering the number "1234.56" . 1. $ 0.00 . 2. $ 0.01 . 3. $ 0.12 . 4. $ 1.23 . 5. $ 12.34 . 6. $ 123.45 . 7. $ 1,234.56 . 8. and so on... I have the UITextField right aligned so that it

I have a textField in my ViewController1. I have a push segue to my ViewController2 which also has a textField. I need to set the textField.text in my ViewController2 to be equal to the text in the textField in my ViewController1. Here's the code I have: - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { if ([segue.identifier isEqual:@"ViewController2"]) { ViewController2 *VCT = [segue destinationViewController]; VCT.title = @"View Controller #2"; VCT.textField.text = self.textField.text; } } The title setter works just fine. Why is the textField not working? You cannot set

I've recently discovered a problem in my app that only seems to occur in iOS 10 where the system keyboard does not display when programmatically triggering a text field to become first responder inside of a completion handler -- specifically the completion handler I get back from a Touch ID attempt. The crazy part of this issue is, even though the keyboard is not shown, the area on the iPhone where the keyboard normally would be is still responding to touch inputs as if the user is typing on the keyboard! After doing a lot of investigation and debugging into the issue, I stumbled across the