iOS加载Gif图片的N种方式 By-H罗

1.系统UIImageView 多张图片组成动画

/**
 *   UIImageView 动画
 *   Memory-23M
 */
-(void)gifPlay1
{
//    NSArray  *array=@[@"image0.png",@"image1.png",@"image2.png"];
//    UIImageView  *imgview= [UIImageView imageViewAnimation:CGRectMake(50,80, 550/2, 200)  imageNames:array duration:1];
    
    UIImageView* animatedImageView = [[UIImageView alloc] initWithFrame:CGRectMake(50,80, 550/2, 200)];
    animatedImageView.animationImages =@[[UIImage imageNamed:@"image0"],
                                         [UIImage imageNamed:@"image1"],
                                         [UIImage imageNamed:@"image2"],
                                         ];
    animatedImageView.animationDuration = 1.0f;
    animatedImageView.animationRepeatCount = 0;
    [self.view addSubview: animatedImageView];
    [animatedImageView startAnimating];
}

2.利用第三方库

1）IImageView-PlayGIF YFGIFImageView

/**
 *  UIImageView-PlayGIF 是 UIImageView 子类，用来显示 GIF。UIIMageView-PlayGIF 性能高，而且占用的内存很低。
 *  https://github.com/yfme/UIImageView-PlayGIF
 *  Memory-21.9M
 *  #import "YFGIFImageView.h"
 */
-(void)gifPlay2
{
    NSString  *gifPath=[[NSBundle mainBundle] pathForResource:@"test" ofType:@"gif"];
    YFGIFImageView  *gifview=[[YFGIFImageView alloc]init];
    gifview.backgroundColor=[UIColor clearColor];
    gifview.gifPath=gifPath;
    gifview.frame=CGRectMake(50, 100,550/2, 200);
    [self.view addSubview:gifview];
    [gifview startGIF];
}

2）SCGIFImageView

/**
 *  摘要: SCGIFImageView是一个开源的GIF图片动画显示控件，通过将GIF的每一帧都取出来生成UIImage对象存放在一个数组中，然后使用NSTimer进行动画轮转。
 *  https://github.com/shichangone/SCGifExample
 *  Memory-22.5M
 *  #import "SCGIFImageView.h"
 */
-(void)gifPlay3
{
    NSString* filePath = [[NSBundle mainBundle] pathForResource:@"test.gif" ofType:nil];
    NSData* imageData = [NSData dataWithContentsOfFile:filePath];
    SCGIFImageView* gifImageView = [[SCGIFImageView alloc]init];
    [gifImageView setData:imageData];
    gifImageView.frame = CGRectMake(50,100, gifImageView.image.size.width, gifImageView.image.size.height);
    [self.view addSubview:gifImageView];
}

3）YLGIFImage

/**
 *  YLGIFImage 是异步 GIF 图像解码器和图像查看器，支持播放 GIF 图像，而且使用很少的内存。
 *  https://github.com/liyong03/YLGIFImage
 *  Memory-22.7M
 *  #import "YLImageView.h"
 *  #import "YLGIFImage.h"
 */
-(void)gifPlay5
{
    YLImageView* imageView = [[YLImageView alloc] initWithFrame:CGRectMake(0, 160, 320, 240)];
    [self.view addSubview:imageView];
    imageView.image = [YLGIFImage imageNamed:@"test.gif"];
}

4）SDWebImageView里的UIImage+GIF

提供接口：

+ (UIImage *)sd_animatedGIFNamed:(NSString *)name;
+ (UIImage *)sd_animatedGIFWithData:(NSData *)data;
- (UIImage *)sd_animatedImageByScalingAndCroppingToSize:(CGSize)size;

/**
 *  利用SDWebImageView 库播放gif
 *  Memory-22.6M
 *  #import "UIImage+GIF.h"
 */
-(void)gifPlay6
{
    UIImage  *image=[UIImage sd_animatedGIFNamed:@"test"];
    UIImageView  *gifview=[[UIImageView alloc]initWithFrame:CGRectMake(50,80,image.size.width, image.size.height)];
    gifview.backgroundColor=[UIColor orangeColor];
    gifview.image=image;
    [self.view addSubview:gifview];
}

为MBProgressHUD 添加加载动画

/**
 *  MBProgressHUD 添加加载动画
 *  Memory-23.8M
 *  #import "UIImage+GIF.h"
 *  #import "MBProgressHUD.h"
 */
-(void)gifPlay6
{
    UIImage  *image=[UIImage sd_animatedGIFNamed:@"test"];
    UIImageView  *gifview=[[UIImageView alloc]initWithFrame:CGRectMake(0,0,image.size.width/2, image.size.height/2)];
    gifview.image=image;
    
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
    hud.color=[UIColor grayColor];//默认颜色太深了
    hud.mode = MBProgressHUDModeCustomView;
    hud.labelText = @"加载中...";
    hud.customView=gifview;
}

其它

微博客户端 VVebo 的作者开源了他自己为VVebo写的GIF解决方案 VVeboImageView，占用内存很小。（iOS移动开发周报-第4期）

Demo下载

http://yunpan.cn/cj6JBN7mfETWE （提取码：226f）