gistfile1.txt

- (void)saveScreenshot
{
    NSString * name = @"ciao";
    BOOL includeStatusBar = NO;
    //Get image with status bar cropped out
    BOOL isRetina = [[UIScreen mainScreen] scale] != 1.0f;
    CGFloat StatusBarHeight = isRetina ? 40 : 20;
    CGImageRef CGImage = UIGetScreenImage();
    BOOL isPortrait = UIInterfaceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation]);
    CGRect imageRect;
    
    if (!includeStatusBar) {
        if (isPortrait) {
            imageRect = CGRectMake(0, StatusBarHeight, CGImageGetWidth(CGImage), CGImageGetHeight(CGImage) - StatusBarHeight);
        } else {
            imageRect = CGRectMake(StatusBarHeight, 0, CGImageGetWidth(CGImage) - StatusBarHeight, CGImageGetHeight(CGImage));
        }
        
        CGImage = (__bridge CGImageRef)CFBridgingRelease(CGImageCreateWithImageInRect(CGImage, imageRect));
    }
    
    NSString *devicePrefix = nil;
    NSString *screenDensity = isRetina ? @"@2x" : @"";
    
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
        devicePrefix = [NSString stringWithFormat:@"iphone%.0f%@", CGRectGetHeight([[UIScreen mainScreen] bounds]), screenDensity];
    } else {
        devicePrefix = [NSString stringWithFormat:@"ipad%@",screenDensity];
    }
    
    UIImage *image = [UIImage imageWithCGImage:CGImage];
    NSData *data = UIImagePNGRepresentation(image);
    NSString *file = [NSString stringWithFormat:@"%@-%@-%@.png", devicePrefix, [[NSLocale currentLocale] localeIdentifier], name];

    NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    
    NSURL *fileURL = [[NSURL fileURLWithPath:documentsPath] URLByAppendingPathComponent:file];
    
    NSLog(@"Saving screenshot: %@", [fileURL path]);
    
    [data writeToURL:fileURL atomically:YES];
}