YGeorge

+ (UIImage *)scaleImage:(UIImage*)image toResolution:(int)resolution {
    CGImageRef imgRef = [image CGImage];
    CGFloat width = CGImageGetWidth(imgRef);
    CGFloat height = CGImageGetHeight(imgRef);
    CGRect bounds = CGRectMake(0, 0, width, height);

    //if already at the minimum resolution, return the orginal image, otherwise scale
    if (width <= resolution && height <= resolution) {
        return image;

YGeorge

- (void)textViewDidEndEditing:(UITextView *)txtView {
    self.placeholderLabel.hidden = ([txtView.text length] > 0);
}

- (BOOL)textViewShouldBeginEditing:(UITextView *)textView {
    self.placeholderLabel.hidden = YES;
    return YES;
}

YGeorge

#ifdef DEBUG
  NSLog(@"Cell recursive description:\n\n%@\n\n", [cell performSelector:@selector(recursiveDescription)]);
#endif

YGeorge

#define SYSTEM_VERSION_EQUAL_TO(v)                  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v)              ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v)                 ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v)     ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)

YGeorge

 ChatMessage *message = [chatMessages objectAtIndex:indexPath.row];
        CGFloat topMargin = (indexPath.row == 0) ? 18 : 0;

        CGRect stringRect = [message.text boundingRectWithSize:CGSizeMake(200, MAXFLOAT)
                                              options:NSStringDrawingUsesLineFragmentOrigin
                                           attributes:@{ NSFontAttributeName : [UIFont fontWithName:CHAT_CELL_FONT size:14] }
                                              context:nil];
        CGSize stringSize = CGRectIntegral(stringRect).size;

        CGFloat bottomMargin = [self isMessageHasTail:indexPath.row] ? 30 : 20;

YGeorge

Replace your enum declarations, such as this one:

enum {
        UITableViewCellStyleDefault,
        UITableViewCellStyleValue1,
        UITableViewCellStyleValue2,
        UITableViewCellStyleSubtitle
};
typedef NSInteger UITableViewCellStyle;
with the NS_ENUM syntax:

YGeorge

- (void)setPhotoByURLString:(NSString *)URLString {
	if (URLString) {
        URLString = [URLString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
        SDImageCache *imageCache = [SDImageCache sharedImageCache];
        [imageCache queryDiskCacheForKey:URLString done:^(UIImage *image, SDImageCacheType cacheType)
        {
            if (image) {
                NSLog(@"image not null!!");
                [self.photoView setImage:image];
            }

YGeorge

+ (UIImage *)scaleImageProportionally:(UIImage *)image {

	if (MAX(image.size.height, image.size.width) <= DEFAULT_PHOTO_MAX_SIZE) {
		return image;
	}
	else {
		CGFloat targetWidth = 0;
		CGFloat targetHeight = 0;
		if (image.size.height > image.size.width) {
			CGFloat ratio = image.size.height / image.size.width;

YGeorge

- (IBAction)fbBtnTouchUp:(id)sender {

    if(NSClassFromString(@"SLComposeViewController") != nil) {
        if([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) {
            SLComposeViewController *controller = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];
            
            [controller setInitialText:self.post.title];
            [controller addURL:[NSURL URLWithString:self.post.url]];
            
            [self presentViewController:controller animated:YES completion:Nil];