Slow animation for Crystal Ball app

Question

Has anyone else noticed the delay in the background animation when you first run the crystal ball app. After the first animation runs any subsequent ones are noticeably faster. I suppose this is because when the animation is first called iOS must load all 60 images into memory and they remain cached for later use. I've been trying to 'preload' the images to memory to make everything faster with not so stellar results. The best way I can find to attempt this is to pre draw the images before they are needed, but I can hardly notice any difference in loading time. I've used the following code I found from stackoverflow:

// First Image
-(void) preLoad1: (UIImage *)image {

    CGImageRef CB0001 = image.CGImage;
    size_t width = CGImageGetWidth(CB0001);
    size_t height = CGImageGetHeight(CB0001);
    CGColorSpaceRef space = CGColorSpaceCreateDeviceRGB();
    CGContextRef context = CGBitmapContextCreate(NULL, width, height, 8, width *4, space, kCGBitmapAlphaInfoMask & kCGImageAlphaPremultipliedFirst);
    CGColorSpaceRelease(space);
    CGContextDrawImage(context, CGRectMake(0, 0, width, height), CB0001);
    CGContextRelease(context);
}

//Second Image
-(void) preLoad2: (UIImage *)image {

    CGImageRef CB0002 = image.CGImage;
    size_t width = CGImageGetWidth(CB0002);
    size_t height = CGImageGetHeight(CB0002);
    CGColorSpaceRef space = CGColorSpaceCreateDeviceRGB();
    CGContextRef context = CGBitmapContextCreate(NULL, width, height, 8, width *4, space, kCGBitmapAlphaInfoMask & kCGImageAlphaPremultipliedFirst);
    CGColorSpaceRelease(space);
    CGContextDrawImage(context, CGRectMake(0, 0, width, height), CB0002);
    CGContextRelease(context);
}

I created method for each image and put them in a separate file, then called the class in the VIewController.m file. Any ideas how to make it work better???

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Joseph Rimar

Joseph Rimar

Slow animation for Crystal Ball app