ios keyboard delegate editing method 실행 순서

-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField{

    //1

    return true;

}

-(void)textFieldDidBeginEditing:(UITextField *)textField{

    //2

    NSLog(@"being editing");    

}

-(BOOL)textFieldShouldEndEditing:(UITextField *)textField{

    //3

    return true;

}

-(void)textFieldDidEndEditing:(UITextField *)textField{

    //4

    NSLog(@"ending editing");

}