What is the best way to pause and resume all downloads from a certain group?

[khoadng]

Currently, I'm doing something like below but it feels a bit clunky. Is there a better way?

  @override
  Future<void> pauseAll(String group) async {
    final tasks = await FileDownloader().allTasks(
      group: group,
    );

    final taskFutures = tasks
        .whereType<DownloadTask>()
        .map((task) => FileDownloader().pause(task))
        .toList();

    await Future.wait(taskFutures);
  }

  @override
  Future<void> resumeAll(String group) async {
    final tasks = await FileDownloader().allTasks(
      group: group,
    );

    final taskFutures = tasks
        .whereType<DownloadTask>()
        .map((task) => FileDownloader().resume(task))
        .toList();

    await Future.wait(taskFutures);
  }

[781flyingdutchman]

This is the right way to do it - if you have a lot of tasks you may want to do a more sophisticated throttling/pacing of the calls to pause an resume to avoid starving the UI thread. I may look into adding pauseAll and resumeAll that take a list of tasks and managing the pause/resume pacing.

[781flyingdutchman]

Version 9.1.0 has pauseAll, resumeAll and cancelAll that make this easier and without strain on the UI thread

[khoadng]

Is there a reason resumeAll doesn’t take a group parameter? Since pauseAll pauses all tasks in a group, it seems logical for resumeAll to resume them.

[781flyingdutchman]

It does! I'll add it. So if group is given it would resume all paused tasks in that group.