Text in UITextField moves up after editing (center while editing)

Question

I have a strange problem. I have an UITextField in which the user should write the amount of something, so the field is called \"amountField\". Everything looks fine, when t

Answer 1

This is because the BaselineOffset for the textfield got changed. In UITextFieldDidEndEditing creating an attributed text with NSBaselineOffset: 0 and using that attributedText would fix the problem.

-(IBAction)txtFieldDidEndEditing:(UITextField *)sender {
     NSDictionary *style = @{
                            NSBaselineOffsetAttributeName: @(0)
                            };
    self.txtField.attributedText = [[NSAttributedString alloc] initWithString:self.txtField.text attributes:style];
}

Answer 2

I fixed this by adding height constraints to my UITextFields.

Answer 3

This bug happened to me when I set text & became the first responder in viewDidLoad or viewWillAppear. When I moved the becomeFirstResponder code to viewDidAppear the bug went away.

Answer 4

I wasn't able to change the font file, so when I solved this I saved the original UITextField's frame in a property and applied the following code:

- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    textField.frame = self.usernameFrame;
}

- (void)textFieldDidEndEditing:(UITextField *)textField
{
    textField.frame = CGRectOffset(self.usernameFrame, 0, 1);
}

It's a bit hacky, but it gets the job done.

Answer 5

So...

After many hours of trying many things - I have found the problem. In my case the problem is the font. I really don't know why, but the author of the font made the font weird (leading etc.), it has a blank space on the bottom. I don't know why, but when you are editing the text all of the text properties are ignored, but after you finish editing, they are applied.

So, if you have a similar problem, try changing the font to Arial or something similar.

For a full explanation, please consult these following links: link 1 and link 2. The solution recommended in these links can avoid you a lot of headaches and can even be applied to fix problem like text moving to the top when you start editing an UITextField (using System font or other particular fonts).

Answer 6

Disabling ClipsToBounds for the TextField solved it for me.