使用Firebase作业调度程序安排定期作业 [英] Schedule recurring job using firebase job dispatcher

问题描述

我尝试每10分钟将android设备的位置发布到服务器.我正在使用Firebase作业调度程序执行此操作

I am trying to post the location of the android device to server every 10 minutes. I am using firebase job dispatcher to do this

FirebaseJobDispatcher dispatcher = new FirebaseJobDispatcher(new GooglePlayDriver(this));
Job myJob = dispatcher.newJobBuilder()
    .setService(UpdateLocationService.class)
    .setRecurring(true)
    .setTrigger(Trigger.executionWindow(10, 20))
    .setRetryStrategy(RetryStrategy.DEFAULT_LINEAR)
    .setTag("location-update-job")
    .setLifetime(Lifetime.FOREVER)
    .build();
dispatcher.mustSchedule(myJob);

UpdateLocationService获取位置并将其发送到服务器.

UpdateLocationService gets the location and sends to server.

我的问题:大部分情况下工作正常.唯一的事情是，工作安排的进度相差4m，6m，7m，8m，10m，16m，23m ...

My problem: Things are mostly working fine. Only thing is, the jobs are getting scheduled with a difference of 4m, 6m, 7m, 8m, 10m, 16m, 23m...

有人可以帮我理解一下吗.

Can some one please help me understand going on.

更新:我希望该位置在10到20分钟内出现一次.在上面的代码中，该值太低，仅用于测试目的

Update: I want the location once in 10-20 minutes. In the above code, the value is too low just for the testing purposes

推荐答案

还:

Trigger.executionWindow(windowStart, windowEnd)

以秒为单位期望windowStart和windowEnd.根据您的要求，您希望窗口为10分钟.所以你应该使用类似的东西:

expects the windowStart and windowEnd in seconds. As per your requirement, you want the window to be 10 mins. So you should use something like:

Trigger.executionWindow(10*60, 20*60)

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