Question

每次有可用的互联网时，我都会使用以下代码来运行作业。我想要的是，在服务被触发后（由于可用的连接）我希望该服务能够定期（每30秒）继续运行g，只要有互联网，然后当连接不再可用时，服务应该停止，只有在下次有互联网时才恢复。

FirebaseJobDispatcher jobDispatcher = new FirebaseJobDispatcher(new GooglePlayDriver(MainActivity.this));

                        .setTag("JobService")

                        .setRecurring(true)

                        .setLifetime(Lifetime.FOREVER)
                        .setService(JobService.class)

                        .setTrigger(Trigger.executionWindow(0,10))

                        .setReplaceCurrent(true)
                        .setRetryStrategy(RetryStrategy.DEFAULT_EXPONENTIAL);    

                builder.addConstraint(Constraint.ON_UNMETERED_NETWORK);
                jobDispatcher.mustSchedule(builder.build());

我想在下次运行时（三十秒内）使JobService本身安排，并且在时间结束后，测试是否有互联网然后好吧否则我会调用Onstop方法但是它没有办法解决这个问题。

Answer 1

你可以写：setTrigger(Trigger.executionWindow(30,40))。说明： firebase job dispatcher github

Scheduling a more complex job

Bundle myExtrasBundle = new Bundle();
myExtrasBundle.putString("some_key", "some_value");

Job myJob = dispatcher.newJobBuilder()
    // the JobService that will be called
    .setService(MyJobService.class)
    // uniquely identifies the job
    .setTag("my-unique-tag")
    // one-off job
    .setRecurring(false)
    // don't persist past a device reboot
    .setLifetime(Lifetime.UNTIL_NEXT_BOOT)
    // start between 0 and 60 seconds from now
    .setTrigger(Trigger.executionWindow(0, 60))

或者对于executionWindow，规则是：

.setTrigger(Trigger.executionWindow(
                        INTERVAL_IN_SECONDS,
                        INTERVAL_IN_SECONDS + TIME_WINDOW_IN_SECONDS
                ))

参考：https://stackoverflow.com/a/39909986/1537413

条件满足时运行定期工作？

1 个答案: