UITextField numeric entries only
I am going to provide here snip for limiting a textfield to numbers only. Following code-snip will help you to enter 14 digit number like a phone number including brackets (), dash – , space and backspace.
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#pragma UITextField delegate methods - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string { char *x = (char*)[string UTF8String]; //NSLog(@"char index is %i",x[0]); if([string isEqualToString:@"-"] || [string isEqualToString:@"("] || [string isEqualToString:@")"] || [string isEqualToString:@"0"] || [string isEqualToString:@"1"] || [string isEqualToString:@"2"] || [string isEqualToString:@"3"] || [string isEqualToString:@"4"] || [string isEqualToString:@"5"] || [string isEqualToString:@"6"] || [string isEqualToString:@"7"] || [string isEqualToString:@"8"] || [string isEqualToString:@"9"] || x[0]==0 || [string isEqualToString:@" "]) { NSUInteger newLength = [textField.text length] + [string length] - range.length; return (newLength > 14) ? NO : YES; } else { return NO; } } |