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
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.
self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"imageName.png"]];
more info with example project