iOS - 多种Gif播放方式

** 1.系统UIImageView 多张图片组成动画（帧动画）**

-(void)MSUGifPlay  {  
    //    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"],     

** 2.利用第三方库**

 **1）SDWebImageView里的UIImage+GIF**

        -(void)MSUGifPlay  {    
            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];
      } 

**2）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)MSUGifPlay  {     
         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];
      }    

 **3）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)MSUGifPlay  {   
       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]; 
     }    

 **4）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)MSUGifPlay  { 
         YLImageView* imageView = [[YLImageView alloc] initWithFrame:CGRectMake(0, 160, 320, 240)];    
        [self.view addSubview:imageView];  
        imageView.image = [YLGIFImage imageNamed:@"test.gif"]; 
     }    

3. 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)MSUGifPlay  {    
          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; 
     }