iphone - How to set background image of a view?

Question

I am a beginner at Obj-C/Cocoa Touch/iPhone OS.

I wish to have a background for my app with different images everytime the the view is called.

Say I have 10 images. I 've used it like this:

//random image generation
NSString* imageName;
int aRandomNumber = arc4random() % 10;
imageName =[NSString stringWithFormat:@"g%d.jpg",aRandomNumber]; 
self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageWithContentsOfFile:[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:imageName]]];
NSLog(@"aRandomNumber is %d", aRandomNumber);
//random image is generated

Its working fine

• Now, say I have text labels on my view and the text isn't displaying correctly due to image colors. How can I make it a little transparent? (I guess in Interface Builder its called alpha.)
• Say my image isn't 320x480. How do I set it to fill the entire view?

How can I do it with UIView/UIImageView?

I found initWithHue:saturation:brightness:alpha: in the documentation but it's not working:

self.view.backgroundColor = [[UIColor alloc] initWithHue:0.0 saturation:1.0 brightness:1.0 alpha:1.0];

Please Help!

---

A friend suggested........

self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageWithContentsOfFile:[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:imageName]]];

..........he told it's more efficient because it doesn't save the image in the cache.

Answer 1

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

more info with example project