iOS 13以后调用原生视频编辑导出失败

iOS视频编辑系统自带控制器UIVideoEditorController目前发现编辑视频后无法导出

iOS13之前编辑完回调用UIVideoEditorController的三个代理方法
videoEditorController:didSaveEditedVideoToPath:

videoEditorController: didFailWithError:

videoEditorControllerDidCancel:
编辑完成后 videoEditorController:didSaveEditedVideoToPath:
代理方法会给出编辑后的地址，可是iOS13不知道苹果又有啥骚操作导致不能正常导出地址而是直接走第三个videoEditorControllerDidCancel:
取消的方法，怎么解决呢？通过我的实践使用#import <AVFoundation/AVFoundation.h>
框架进行视频编辑可以适配一下iOS13系统编辑视频的问题
核心代码
#pragma mark 视频裁剪

• (void)notifyDelegateOfDidChange{
  self.tempVideoPath = [NSTemporaryDirectory() stringByAppendingPathComponent:@“tmpMov.mov”];

  [self deleteTempFile];

  AVAsset *asset = [AVAsset assetWithURL:self.videoUrl];
  AVAssetExportSession *exportSession = [[AVAssetExportSession alloc]
  initWithAsset:asset presetName:AVAssetExportPresetPassthrough];

  NSURL *furl = [NSURL fileURLWithPath:self.tempVideoPath];
  exportSession.outputURL = furl;
  exportSession.outputFileType = AVFileTypeQuickTimeMovie;

  CMTime start = CMTimeMakeWithSeconds(self.startTime, self.player.currentTime.timescale);
  CMTime duration = CMTimeMakeWithSeconds(self.endTime - self.startTime, self.player.currentTime.timescale);;
  CMTimeRange range = CMTimeRangeMake(start, duration);
  exportSession.timeRange = range;

  [exportSession exportAsynchronouslyWithCompletionHandler:^{
  switch ([exportSession status]) {
  case AVAssetExportSessionStatusFailed:
  NSLog(@“Export failed: %@”, [[exportSession error] localizedDescription]);
  break;

        case AVAssetExportSessionStatusCancelled:
            NSLog(@"Export canceled");
            break;
            
        case AVAssetExportSessionStatusCompleted:{
            NSLog(@"Export completed");
            __weak typeof(self) weakSelf = self;
            dispatch_async(dispatch_get_main_queue(), ^{
                UISaveVideoAtPathToSavedPhotosAlbum([furl relativePath], self,@selector(video:didFinishSavingWithError:contextInfo:), nil);
                NSLog(@"编辑后的视频路径： %@",weakSelf.tempVideoPath);
                
                weakSelf.isEdited = YES;
                [weakSelf invalidatePlayer];
                [weakSelf initPlayerWithVideoUrl:furl];
                bottomView.hidden = YES;
            });
        }
            break;
            
        default:
            NSLog(@"Export other");
  
            break;
    }
  

  }];
  }

• (void)video:(NSString*)videoPath didFinishSavingWithError:(NSError*)error contextInfo:(void*)contextInfo {
  if (error) {
  NSLog(@“保存到相册失败”);
  }
  else {
  NSLog(@“保存到相册成功”);
  }
  }

• (void)deleteTempFile{
  NSURL *url = [NSURL fileURLWithPath:self.tempVideoPath];
  NSFileManager *fm = [NSFileManager defaultManager];
  BOOL exist = [fm fileExistsAtPath:url.path];
  NSError *err;
  if (exist) {
  [fm removeItemAtURL:url error:&err];
  NSLog(@“file deleted”);
  if (err) {
  NSLog(@“file remove error, %@”, err.localizedDescription );
  }
  }
  else {
  NSLog(@“no file by that name”);
  }
  }

使用比较简单主要就是利用AVFoundation框架完成简单的视频编辑以及保存
demo参考了VideoEditDemo-master git地址https://github.com/MisterZhiWei/VideoEditDemo