Changing the background color of an NSCollectionView

Question

Is it a chance to programatically change the background color of NSCollectionView?

I was trying subclassing.. but not working..

 @interface CollectionViewBg : NSCollectionView

in .m

 [self setBackgroundColors:[NSArray arrayWithObjects:[NSColor blueColor], nil]];

Answer 1

In .m, remove this line :

 [self setBackgroundColors:[NSArray arrayWithObjects:[NSColor blueColor], nil]];

And use this code:

- (void)drawRect:(NSRect)dirtyRect{

[[NSColor blueColor] setFill];
NSRectFill(dirtyRect);

}

Also don't forget to change class of NSCollectionView object in IB to CollectionViewBg.

Hope this helps :)