其实网上GitHub有很多第三方的,但是用起来比较麻烦,这里介绍最简单的一种方式,,(点击按钮开始播放动态图)
1,集成SDWebImage之后,引入头文件#import "UIImage+GIF.h"
2.初始化按钮,(loadingImageView是定义的全局的UIImageView,自己顶一下)
self.loadingImageView= [[UIImageView alloc]init];
UIButton* btn=[[UIButton alloc]initWithFrame:CGRectMake(0, 100, 50, 20)];
btn.backgroundColor=[UIColor redColor];
[self.view addSubview:btn];
[btn addTarget:self action:@selector(initLoadingImageView) forControlEvents:UIControlEventTouchUpInside];
3.点击按钮就可以实现了,非常简单
-
(void)initLoadingImageView
{NSString *name = @"图片的名字.gif";
NSString *filePath = [[NSBundle bundleWithPath:[[NSBundle mainBundle] bundlePath]] pathForResource:name ofType:nil];
NSData *imageData = [NSData dataWithContentsOfFile:filePath];if (!self.loadingImageView) {
self.loadingImageView = [[UIImageView alloc]init];
}
self.loadingImageView.backgroundColor = [UIColor clearColor];self.loadingImageView.image = [UIImage sd_animatedGIFWithData:imageData];
//这里可以修改要实现播放的gif的frame
self.loadingImageView.frame = CGRectMake(0, 100, 200, 100);
[self.view addSubview:self.loadingImageView];
[self.view bringSubviewToFront:self.loadingImageView];
}
如果想实现gif图片的暂停和继续播放的功能加入以下两个方法就可以了
1.首先再viewDidLoad加入这个(player是CALayer类型的,定义为全局的)
// 设置imageView的layer
player = self.loadingImageView.layer;
2.实现这两个方法,需要用哪个就点击哪个直接把player传过去就可以了
//暂停gif的方法
-(void)pauseLayer:(CALayer*)layer
{
CFTimeInterval pausedTime = [layer convertTime:CACurrentMediaTime() fromLayer:nil];
layer.speed = 0.0;
layer.timeOffset = pausedTime;
}
//继续gif的方法
-(void)resumeLayer:(CALayer*)layer
{
CFTimeInterval pausedTime = [layer timeOffset];
layer.speed = 1.0;
layer.timeOffset = 0.0;
layer.beginTime = 0.0;
CFTimeInterval timeSincePause = [layer convertTime:CACurrentMediaTime() fromLayer:nil] - pausedTime;
layer.beginTime = timeSincePause;
}
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版权声明:本文为CSDN博主「Erice_e」的原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接及本声明。
原文链接:https://blog.csdn.net/Erice_e/article/details/78675633
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