CHRTextFieldFormatter allows you to apply an input mask to a UITextField instance.
- Does not mute Copy/Cut/Paste events.
- Correctly calculates cursor position.
- Does not require
UITextFieldsubclassing. - Provides
CHRTextMaskinterface to allow custom text masking algorithm implementation. - Subclasses
NSFormatter.
There are two kind of masks available:
CHRPhoneNumberMaskto apply cellular phone number mask.CHRCardNumberMaskto apply credit card number mask.
Phone number mask can be configured to have non-deletable prefix. For example:
CHRPhoneNumberMask *mask = [CHRPhoneNumberMask new];
mask.prefix = @"+7";Drag *.h and *.m files to your project.
- (void)viewDidLoad {
[super viewDidLoad];
self.phoneNumberFormatter = [[CHRTextFieldFormatter alloc] initWithTextField:self.phoneNumberTextField mask:[CHRPhoneNumberMask new]];
self.cardNumberFormatter = [[CHRTextFieldFormatter alloc] initWithTextField:self.cardNumberTextField mask:[CHRCardNumberMask new]];
}
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
if (textField == self.phoneNumberTextField) {
return [self.phoneNumberFormatter textField:textField shouldChangeCharactersInRange:range replacementString:string];
} else if (textField == self.cardNumberTextField) {
return [self.cardNumberFormatter textField:textField shouldChangeCharactersInRange:range replacementString:string];
} else {
return YES;
}
}
Run the example project to see the demo.
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