I have created a text field to enter an amount of money. I want the user to be able to enter only one decimal point. I implemented that in the -(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
method.
In the general case it works fine, but if backspace is pressed and the single decimal point is deleted, after that it still assumes that a decimal point has been entered, and so does not accept the decimal point again.
I need to reset the decimalPointEntered
flag whenever the decimal point is deleted by pressing backspace. How to do that ?
This works fine for me. Try this code:
-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
NSString *newString = [textField.text stringByReplacingCharactersInRange:range withString:string];
NSArray *sep = [newString componentsSeparatedByString:@"."];
if([sep count] >= 2)
{
NSString *sepStr=[NSString stringWithFormat:@"%@",[sep objectAtIndex:1]];
return !([sepStr length]>1);
}
return YES;
}