How can I change the image displayed in a UIImageView programmatically?

Question

I have an IBOutlet to a UIImageView, but when I look at the UIImageView doc, I can\'t see any hints about programmatically changing it

Answer 1

Note that the NIB file doesn't wire up all the IBOutlets until the view has been added to the scene. If you're wiring things up manually (which you might be doing if things are in separate NIBs) this is important to keep in mind.

So if my test view controller has an "imageView" wired by a nib, this probably won't work:

  testCardViewController.imageView.image = [UIImage imageNamed:@"EmptyCard.png"];
  [self.view addSubview:testCardViewController.view];

But this will:

  [self.view addSubview:testCardViewController.view];
  testCardViewController.imageView.image = [UIImage imageNamed:@"EmptyCard.png"];