//控件 属性
@property(nonatomic,strong)UIButton*cancelBtn;
@property(nonatomic,strong)UIButton*sendBtn;
@property(nonatomic,strong)CircleProgressView*progressView;
@property(nonatomic,strong)VedioDetailModel*model;
@property(nonatomic,strong)NSURLSessionDownloadTask*downloadTask;
/** 下载视频 */
-(void)startDownLoadVedioWithModel:(VedioDetailModel*)model{
_model=model;
NSURLSessionConfiguration*config=[NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession*session=[NSURLSession sessionWithConfiguration:config delegate:selfdelegateQueue:[NSOperationQueue mainQueue]];
self.downloadTask=[session downloadTaskWithURL:[NSURL URLWithString:model.vedioUrl]];
[self.downloadTask resume];
}
#pragmamark NSSessionUrlDelegate
-(void)URLSession:(NSURLSession*)session downloadTask:(NSURLSessionDownloadTask*)downloadTask didWriteData:(int64_t)bytesWritten totalBytesWritten:(int64_t)totalBytesWrittentotalBytesExpectedToWrite:(int64_t)totalBytesExpectedToWrite{
//下载进度CGFloat progress=totalBytesWritten/(double)totalBytesExpectedToWrite;dispatch_async(dispatch_get_main_queue(),^{
//进行UI操作 设置进度条self.progressView.progressValue=progress;
self.progressView.contentLabel.text=[NSString stringWithFormat:@"%.2f%%",progress*100];
});
}
//下载完成 保存到本地相册
-(void)URLSession:(NSURLSession*)session downloadTask:(NSURLSessionDownloadTask*)downloadTaskdidFinishDownloadingToURL:(NSURL*)location{
//1.拿到cache文件夹的路径NSString*cache=[NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES)lastObject];
//2,拿到cache文件夹和文件名NSString*file=[cache stringByAppendingPathComponent:downloadTask.response.suggestedFilename];[[NSFileManager defaultManager]moveItemAtURL:location toURL:[NSURL fileURLWithPath:file]error:nil];
//3，保存视频到相册if(UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(file)){
//保存相册核心代码
UISaveVideoAtPathToSavedPhotosAlbum(file,self,nil,nil);
}
}
//控件本身的代理方法 更新控件样子
-(void)progressOverAndChangeViewContents{
MyLog(@"下载完成");
self.sendBtn.enabled=YES;
self.titleBtn.enabled=NO;
[self.titleBtn setTitle:@"视频已下载到本地"forState:UIControlStateNormal];
self.contentBtn.enabled=NO;
[self.contentBtn setTitle:@"商品简介已复制"forState:UIControlStateNormal];
}