关于IOS15后 推送系统语音播报无声解决方案（亲测可行）

iOS15之前用之前那套方案就可以了，
也可以在之前的那套方案进行优化，
1.优化方案
这篇作为参考
https://developer.aliyun.com/article/855389
我只想说我这边遇到的问题，和解决方案
首先需要申请groupsapp 方便本地合成播放
如果想要用本地通知播放需要申请Time Sensitive notification 很简单
我想说下合成这一块代码

-(void) complateFileTosound:(NSArray *)soudsArray{
  NSMutableArray *audioPathArray = [NSMutableArray new];
  AVMutableComposition *composition = [AVMutableComposition composition];
  NSMutableArray *rangesArray = [NSMutableArray new];
  NSMutableArray *audioAssetTrackArray = [NSMutableArray new];
  AVMutableCompositionTrack *audioTrack = [composition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:0];
  //这一句很关键，它获取的是push的路径 所以我们需要截取
  NSString *bundlePath = [NSBundle mainBundle].bundlePath;
  NSArray *appPathArray = [bundlePath componentsSeparatedByString:@"PlugIns"];
  NSString *appPath = appPathArray[0];
  
  for (int i = 0; i< soudsArray.count; i++) {
      NSString *string = soudsArray[i];
      NSString *audioPath = [NSString stringWithFormat:@"%@%@.mp3",appPath,string];
      AVURLAsset *audioAsset = [AVURLAsset assetWithURL:[NSURL fileURLWithPath:audioPath]];
  //必须要保存 不然gg   有知道为什么大神可以 给我说一下 坑了很长时间
    [audioPathArray addObject:audioAsset];
     AVAssetTrack *audioAssetTrack = [[audioAsset tracksWithMediaType:AVMediaTypeAudio] firstObject];

     CMTimeRange range = CMTimeRangeMake(kCMTimeZero, audioAsset.duration);

    [rangesArray addObject:[NSValue valueWithCMTimeRange:range]];
    [audioAssetTrackArray addObject:audioAssetTrack];

  }
  //多音频合成方案
  [audioTrack insertTimeRanges:rangesArray ofTracks:audioAssetTrackArray atTime:kCMTimeZero error:nil];
  
  
  AVAssetExportSession *session = [[AVAssetExportSession alloc]initWithAsset:composition presetName:AVAssetExportPresetAppleM4A];
      
      NSString *outPutFilePath = [[self.filePath stringByDeletingLastPathComponent] stringByAppendingPathComponent:@"report.m4a"];
      
      if ([[NSFileManager defaultManager] fileExistsAtPath:outPutFilePath]) {
          [[NSFileManager defaultManager] removeItemAtPath:outPutFilePath error:nil];
      }
      session.outputURL = [NSURL fileURLWithPath:self.filePath];
      session.outputFileType = AVFileTypeAppleM4A; //与上述的`present`相对应
      session.shouldOptimizeForNetworkUse = YES;   //优化网络
      [session exportAsynchronouslyWithCompletionHandler:^{
          if (session.status == AVAssetExportSessionStatusCompleted) {
              NSLog(@"合并成功----%@", outPutFilePath);
             //有了这个你可以选择本地 通知播报  或者直接 sound赋值
          } else {

          }
      }];
  
}

- (NSString *)filePath {
    if (!_filePath) {
      //获取group路径
      NSURL *groupURL = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:kGroupDefaultSuiteName];
             NSURL * sounds = [groupURL URLByAppendingPathComponent:@"/Library/Sounds/" isDirectory:YES];
             if (![[NSFileManager defaultManager] contentsOfDirectoryAtPath:sounds.path error:nil]) {
                BOOL isCreateSuccess =  [[NSFileManager defaultManager] createDirectoryAtPath:sounds.path withIntermediateDirectories:YES attributes:nil error:nil];
                if (isCreateSuccess) _filePath = [sounds.path stringByAppendingPathComponent:@"report.m4a"];
               
             }else{
               _filePath = [sounds.path stringByAppendingPathComponent:@"report.m4a"];
             }
              
    }
  
    return _filePath;
}

东西不多 但是 要升级系统，升级Xcode 升级手机，花了2天时间，终于弄完了，记录一下，也希望遇到同样的小伙伴少走点弯路。