StackOverflow2013

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copied!<p>This will help you</p> <p>Format (xxx) xxx-xxxx</p> <pre><code>- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string { int length = (int)[self getLength:textField.text]; //NSLog(@"Length = %d ",length); if(length == 10) { if(range.length == 0) return NO; } if(length == 3) { NSString *num = [self formatNumber:textField.text]; textField.text = [NSString stringWithFormat:@"(%@) ",num]; if(range.length > 0) textField.text = [NSString stringWithFormat:@"%@",[num substringToIndex:3]]; } else if(length == 6) { NSString *num = [self formatNumber:textField.text]; //NSLog(@"%@",[num substringToIndex:3]); //NSLog(@"%@",[num substringFromIndex:3]); textField.text = [NSString stringWithFormat:@"(%@) %@-",[num substringToIndex:3],[num substringFromIndex:3]]; if(range.length > 0) textField.text = [NSString stringWithFormat:@"(%@) %@",[num substringToIndex:3],[num substringFromIndex:3]]; } return YES; } - (NSString *)formatNumber:(NSString *)mobileNumber { mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"(" withString:@""]; mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@")" withString:@""]; mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@" " withString:@""]; mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"-" withString:@""]; mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"+" withString:@""]; NSLog(@"%@", mobileNumber); int length = (int)[mobileNumber length]; if(length > 10) { mobileNumber = [mobileNumber substringFromIndex: length-10]; NSLog(@"%@", mobileNumber); } return mobileNumber; } - (int)getLength:(NSString *)mobileNumber { mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"(" withString:@""]; mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@")" withString:@""]; mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@" " withString:@""]; mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"-" withString:@""]; mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"+" withString:@""]; int length = (int)[mobileNumber length]; return length; } </code></pre>

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