Display a GIF in UIImageView

UIImageView+loadGif.m

//
//  UIImageView+loadGif.m
//  GifTest
//
//  Created by WaterWood on 14-5-21.

#import "UIImageView+loadGif.h"
#import <QuartzCore/QuartzCore.h>
#import <ImageIO/ImageIO.h>

@implementation UIImageView (loadGif)

- (void)setGifFilePath:(NSString*)gifFilePath
{
    NSData *gifData = [NSData dataWithContentsOfFile:gifFilePath];
    NSMutableArray *frames = nil;
    CGImageSourceRef src = CGImageSourceCreateWithData((__bridge CFDataRef)gifData, NULL);
    double total = 0;
    NSTimeInterval gifAnimationDuration;
    if (src)
    {
        size_t l = CGImageSourceGetCount(src);
        if (l > 1)
        {
            frames = [NSMutableArray arrayWithCapacity: l];
            for (size_t i = 0; i < l; i++)
            {
                CGImageRef img = CGImageSourceCreateImageAtIndex(src, i, NULL);
                CFDictionaryRef dic = CGImageSourceCopyPropertiesAtIndex(src, 0, NULL);
                NSDictionary *dict = [NSDictionary dictionaryWithDictionary:CFBridgingRelease(dic)];
                if (dict){
                    NSDictionary *tmpdict = [dict objectForKey: @"{GIF}"];
                    total += [[tmpdict objectForKey: @"DelayTime"] doubleValue] * 100;
                }
                if (img) {
                    [frames addObject: [UIImage imageWithCGImage: img]];
                    CGImageRelease(img);
                }
            }
            gifAnimationDuration = total / 100;
            
            self.animationImages = frames;
            self.animationDuration = gifAnimationDuration;
            [self startAnimating];
        }
        else if(l == 1)
        {
            CGImageRef img = CGImageSourceCreateImageAtIndex(src, 0, NULL);
            self.image = [UIImage imageWithCGImage:img];
            CGImageRelease(img);
        }
    }
    
    CFBridgingRelease(src);
}

@end