set background image for entire iPhone / iPad app

I have a single image I want as the background for my app no matter what viewcontroller they are on - how do you accomplish this?

Solution 1:

Here's how you set a background to an image:

self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"Background.png"]];

Edit: To write up what Felixyz said (and thanks to Manni), do this in your delegate:

window.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"Background.png"]];

And in each view you want to have the image, do this:

self.view.backgroundColor = [UIColor clearColor];

Solution 2:

Depends on what sort of interface you have. Tabbed? Navigation based? But the general answer is: add a UIImageView to your UIWindow before/below your main view. Then make every view handled by your main view controller have a transparent background. Hard to give more specific advice without knowing if you use IB or not, or what your view hierarchy looks like.

Solution 3:

In my app, I set a default background color. Maybe you can do this with you background image:

1.: Set the background color of your UIWindow in your AppDelegate:

window.backgroundColor = [UIColor myBackgroundGray]; // own Category

2.: And now, make all other views transparent:

self.view.backgroundColor = [UIColor clearColor]; // = transparent