scrollRectToVisible:CGRectMake is not working properly

Question

I have 5 UITextField s in a UIScrollView and when I touch the 4th textfield the keyboard appears, but it appears over the textfield (the textfield remains below the keyboard) and I can not see what I am typing.

I tried to use -scrollRectToVisible:CGRectMake shifted the contentSize size, and it is working fine.

But the behaviour is not understandable. Can anyone tell me how this function actually works?

Answer 1

Try with

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
    CGRect rc = [textField bounds];
    rc = [textField convertRect:rc toView:self.scrollView];
    CGPoint pt = rc.origin;
    pt.x = 0;
    if(rc.origin.y > 200) // here you can also change value 200 and 150 as per your requirement.
        pt.y -=  150;
    else
        pt.y -= rc.origin.y;
    [self.scrollView setContentOffset:pt animated:YES];

    return YES;
}