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iOS

Posted by Tom Dunwoody
Tom Dunwoody
853 Points

UIImageView is not initialized a UIImage object. Programming a background image. Need help !

Attempting to program a background image.

UIIMageView *imageView = [[UIIMageView alloc] initWithImage:background];

UIImage *background = [UIIMage imageNamed: @"background"];

Not sure why this isnt working.

2 Answers

Holger Liesegang
Holger Liesegang
50,595 Points
Holger Liesegang
Holger Liesegang
50,595 Points

I answered the following to your other question a view minutes ago and by now seeing your code I think I've been right with the wrong order of the two declarations :)

I just tested Challenge task 1 of 1 with

// The following code is excerpted from 
// the viewDidLoad method of THViewController.m

// Fix the code below 
// Hint: First create an instance of UIImage

UIImage *background = [UIImage imageNamed:@"background"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:background];

and it passed without a problem. I'm afraid you tried to declare the 'UIImage *background' after the 'imageView' declaration, and '[[UIImageView alloc] initWithImage:background]' already needs to have the 'background' variable.

Tom Dunwoody
Tom Dunwoody
853 Points

ohh so it runs line by line? ... sorry i didnt know how else to fix this as it has been a frustrating issue. I apologize for the duplicated post. So i need to declare background before assigning. It makes sense now. I wasnt sure if it mattered, as long as the variables respected each other with values and declarations.

Holger Liesegang
Holger Liesegang
50,595 Points
Holger Liesegang
Holger Liesegang
50,595 Points

Yes, the order matters, no problem and keep on learning, Tom Dunwoody - it's getting better every day and don't forget to have some fun while programming :)