Developing same UI for 3.5, 4.0 (updated 4.7 and 5.5) inches screens in Xcode 5.0.1 (updated xcode 6), no landscape, no iPad and no storyboard

Question

1. I have developed app considering 3.5 inch with .xib files and not storyboard.
2. I am unable to find any tutorial or guide which will help me in designing app si

Answer 1

You can use auto layout or code. In code you can use layoutSubviews method. Just check view height to discover is it a iPhone 3.5 or 4 inch and do your set up:

-(void)layoutSubviews
{
    if (self.view.bounds.size.height == 568)
    {
        [self.textField setFrame:CGRectMake(0, 0, 100, 30)];
        //... other setting for iPhone 4inch
    }
    else
    {
        [self.textField setFrame:CGRectMake(0, 0, 100, 30)];
        //... other setting for iPhone 3.5 inch
    }
}