Method onDownloadComplete

android/src/DownloadUtil.java:217–218

(long ptr, String tmpPath, String finalPath,
                                 boolean success)

  native void onDownloadAdded(long handler, String path,
                              long size, long position);
  native void onDownloadComplete(long ptr, String tmpPath, String finalPath,
                                 boolean success);

  void checkComplete() {
    DownloadManager.Query query = new DownloadManager.Query();