通过视频URL，保存到相册。

//

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface XPFdownload : NSObject

/// url

- (void)onVedioUrl:(NSString *)vedioUrl;

/// 成功/失败回调

@property (nonatomic, strong) BoolBlock successBlock;

@end

NS_ASSUME_NONNULL_END

//

#import "XPFdownload.h"

@interface XPFdownload ()

<

NSURLSessionDelegate

>

@property (nonatomic, strong) NSURLSessionDownloadTask *downloadTask;

@end

@implementation XPFdownload

- (void)onVedioUrl:(NSString *)vedioUrl

{

    NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];

    NSURLSession *session = [NSURLSession sessionWithConfiguration:config delegate:self delegateQueue:[NSOperationQueue mainQueue]];

    self.downloadTask = [session downloadTaskWithURL:[NSURL URLWithString:vedioUrl]];

    [self.downloadTask resume];

}

/// 下载完成 保存到本地相册

- (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didFinishDownloadingToURL:(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);

        //保存相册核心代码

        UISaveVideoAtPathToSavedPhotosAlbum(file, self, @selector(video:didFinishSavingWithError:contextInfo:), nil);

    }

}

//控件本身的代理方法  更新控件样子

- (void)progressOverAndChangeViewContents {

}

//保存视频完成之后的回调

- (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {

    if (error) {

        //NSLog(@"保存视频失败%@", error.localizedDescription);

        if (self.successBlock) {

            self.successBlock(NO);

        }

    }

    else {

        //NSLog(@"保存视频成功");

        if (self.successBlock) {

            self.successBlock(YES);

        }

    }

}

@end