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I’m creating an iPhone app, which will run on iPhone 3 and iPhone 4.
To that point, I was trying to make the images adjust to the resolution, but it turns out that even when running on the iPhone 4, the size of my window is 320×480.
On the XIB I specified “fullscreen at launch” and for the ViewController I even specified “Wants fullscreen”, but I can never get it to recognise the actual resolution.
Am I missing something?
Is it running full screen on your iPhone 4? (I don’t mean what resolution is being reported, I mean are there black bars around the app – I bet there aren’t).
iOS is ‘magical’ in that you just deal with iPhone 3 size things i.e. xibs etc and it scales it correctly for you on the iPhone 4. You will always see the smaller resolution when you query the display.
To get images to load the correct resolution just create two versions i.e.
myImage.png
myImage@2x.png
Make the second one exactly twice the size of the first and the iPhone will do the rest.
PS There’s a property that’s been added to UIImageView called scale – it’s how the iPhone knows how large to render an image – have a look at the docs here.