react-native-fetch-blob has memory leak during update download progress

[pengcao1]

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"react": "16.3.1",
"react-native": "0.55.2",
"react-native-fetch-blob": "0.10.8"

OOM stack:
com.RNFetchBlob.Response.RNFetchBlobFileResp$ProgressReportingSource.read (RNFetchBlobFileResp.java:81)
okio.Buffer.writeAll (Buffer.java:1005)
okio.RealBufferedSource.readByteArray (RealBufferedSource.java:107)
okhttp3.ResponseBody.bytes (ResponseBody.java:135)
com.RNFetchBlob.RNFetchBlobReq.done (RNFetchBlobReq.java:513)
com.RNFetchBlob.RNFetchBlobReq.access$100 (RNFetchBlobReq.java:60)
com.RNFetchBlob.RNFetchBlobReq$3.onResponse (RNFetchBlobReq.java:423)
okhttp3.RealCall$AsyncCall.execute (RealCall.java:135)
okhttp3.internal.NamedRunnable.run (NamedRunnable.java:32)

` this.downloadTask = RNFetchBlob.config({
fileCache: true,
path: this.getDownloadDir(urlObject) + this.getFileName(urlObject),
}).fetch("GET", urlObject.url, {});

this.downloadTask
  .progress((received: any, total: any) => {
    if (urlObject.name === "audioUrlRemote") {
      const progress = received / total;
      this.currentDownloadItem.downloadedWeight = WEIGHT_MAIN_AUDIO * progress;
      this.setState({ ...this.state, refreshTrigger: !this.state.refreshTrigger });
    }

    if (
      this.currentDownloadItem.downloadStatus === DownloadStatus.PAUSE ||
      this.currentDownloadItem.downloadStatus === DownloadStatus.NotDownload
    ) {
      this.downloadTask.cancel(() => {});
    }
  })
  .then((res: any) => {
    // for bug fixing on android
    if (this.currentDownloadItem.downloadStatus !== DownloadStatus.Downloading) {
      return;
    }
    // console.log("save file to: " + res.path());
    this.onDownloadComplete(urlObject, res.path(), urls);
  })
  .catch(() => {
    NetInfo.isConnected.fetch().then((isConnected) => {
      if (!isConnected) {
        this.props.dispatch!(
          addNotification({
            type: ErrorTypes.NETWORK_ERROR,
            msg: "error on catch",
          }),
        );
        pauseAllDownload(this.props.downloadInfo, this.props.dispatch!);
      }
    });
  });

};`