How do I position views in Interface Builder for both 3.5” and 4” Retina?

Question

I want to position a UIView so it appears in the centre on both 3.5” and 4” Retina screens. What is the best way to do this? If I turn off all the Autosizing bars I would expect

Answer 1

Here's how you would do it manually (without AutoLayout):

int screenWidth = [[UIScreen mainScreen] applicationFrame].size.height;
int screenHeight = [[UIScreen mainScreen] applicationFrame].size.width;

UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(0,0,100,200)];
[myView setCenter:CGPointMake(screenWidth/2, screenHeight/2)];

[self.view addSubview:myView];