third-party_libraries/TestGIF/TestGIF/ViewController.m

//
//  ViewController.m
//  TestGIF
//
//  Created by huangyirong on 2020/6/2.
//  Copyright © 2020 Sogou. All rights reserved.
//

#import "ViewController.h"
@import ImageIO;

@interface ViewController ()
@property (strong, nonatomic) UIImageView *imageView;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    [self test1];
    
}

- (void)test1
{
    _imageView = [[UIImageView alloc] initWithFrame:CGRectMake(100, 200, 200, 200)];
    [self.view addSubview:_imageView];
    NSString *path = [[NSBundle mainBundle] pathForResource:@"abc.gif" ofType:nil];
    NSData *data = [NSData dataWithContentsOfFile:path];
//   _imageView.image =  [UIImage imageWithData:data];
//    return;
    CGImageSourceRef source = CGImageSourceCreateWithData((__bridge CFDataRef)data, NULL);
    NSInteger count = CGImageSourceGetCount(source);
    NSMutableArray *images = [NSMutableArray arrayWithCapacity:count];
    for (int i = 0; i < count; i++) {
       CGImageRef cgImage = CGImageSourceCreateImageAtIndex(source, i, NULL);
       [images addObject:[UIImage imageWithCGImage:cgImage]];
       CGImageRelease(cgImage);
    }
    CFRelease(source);
    _imageView.animationImages = images;
    _imageView.animationDuration = count * 0.1;
    [_imageView startAnimating];
}




@end