ListenableWorker不会删除通知图标 [英] ListenableWorker does not remove notification icon

问题描述

我正在使用ListenableWorker执行后台任务. 另外，我希望操作系统意识到我的服务重要性，所以我打电话给

I am using ListenableWorker to perform background tasks. Also I want OS to be aware of my service importance, so I call

 setForegroundAsync(new ForegroundInfo(WorkerConstants.NOTIFICATION_FOREGROUND_ID,
 builder.build()));

如google文档中所建议.

As suggested in the google documentation.

但是当我的服务停止或取消时，我仍然可以看到前台服务通知，并且无法删除它.

But when my service stopped or cancelled, i can still see foreground service notification and i cannot remove it.

此外，我在此通知中添加了取消"按钮，但它无能为力，我无法将其关闭:

Furthermore, I added cancel button to this notification, but it does nothing, I cannot close it:

PendingIntent intent = WorkManager.getInstance(getApplicationContext())
                            .createCancelPendingIntent(getId());
                    builder.addAction(R.drawable.ic_redesign_exit,"Stop",intent);

有什么建议吗?

推荐答案

我为此向Google跟踪器提出了一个问题.并发现那完全是累了.

I filed an issue to google tracker with this. And found out that was totally worng.

官方回应如下:

看看您的示例应用程序，您正在介绍 完成的您的ListenableFuture返回 CallbackToFutureAdaptor和主循环程序.

Looking at your sample app, you are introducing a race between completion of your ListenableFuture returned by CallbackToFutureAdaptor, and the main looper.

即使不使用REPLACE，您的一个通知更新也是: 在您的工作人员标记为成功之后发布.

Even without the use of REPLACE one of your Notification updates is posted after your Worker is marked as successful.

但是，您实际上可以通过等待 调用setForegroundAsync()以完成操作(因为这也会 返回一个ListenableFuture).一旦您这样做-您将永远不会 在您的工作人员完成后显示的通知.

However, you can actually avoid the race condition by waiting for the call to setForegroundAsync() to be completed (because that also returns a ListenableFuture). Once you do that - you never have a notification that shows up after your Worker is done.

我还将继续改进我们的方法 即使开发人员弄错了它也会自动执行此操作.

I will also go ahead and file an improvement on how we can automatically do this even when developers get this wrong.

try {
    // This ensures that you waiting for the Notification update to be done.
    setForegroundAsync(createForegroundInfo(0)).get();
} catch (Throwable throwable) {
    // Handle this exception gracefully
    Log.e("FgLW", "Something bad happened", throwable);
}

这篇关于ListenableWorker不会删除通知图标的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！