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）