evernote android-job:什么时候设置日程安排规则?

时间:2017-05-15 15:34:45

标签: android evernote android-job

我没有找到关于这个主题的任何内容,但我很好奇你的建议或"最佳做法"关于何时设置规则以安排任务?例如,如果我必须安排同步作业,只要应用程序运行,该作业应始终存在,

new JobRequest.Builder("...")..
  .build()
  .schedule()

被称为?

谢谢

2 个答案:

答案 0 :(得分:1)

您应该创建JobCreator,它将实例化您的Job类,如下所示:

public class MyJobCreator implements JobCreator {

    @Override
    public Job create(String tag) {
        if (MyJob.TAG.equals(tag)) {
            return new MyJob();
        }

        return null;
    }
}

并在Application.onCreate()中初始化:

JobManager.create(this).addJobCreator(new MyJobCreator());
MyJob.scheduleJob();

MyJob可能如下所示:

public class MyJob extends Job {

    public static final String TAG = "my_job_tag";

    @Override
    @NonNull
    protected Result onRunJob(Params params) {
        Intent i = new Intent(getContext(), MyService.class);
        getContext().startService(i);
        return Result.SUCCESS;
    }

    public static void scheduleJob() {
        new JobRequest.Builder(MyJob.TAG)
                .setPeriodic(60_000L) // 1 minute
                .setRequiredNetworkType(JobRequest.NetworkType.ANY)
                .setPersisted(true)
                .setUpdateCurrent(true)
                .setRequirementsEnforced(true)
                .build()
                .schedule();
    }
}

答案 1 :(得分:1)

扩展shmakova的答案,如果您的同步作业已安排如下,则可能需要添加条件:

public static void scheduleJob() {
    if (JobManager.instance().getAllJobRequestsForTag(MyJob.TAG).isEmpty()) {
        new JobRequest.Builder(MyJob.TAG)
                .setPeriodic(900_000L)
                .setRequiredNetworkType(JobRequest.NetworkType.ANY)
                .setPersisted(true)
                .setUpdateCurrent(true)
                .setRequirementsEnforced(true)
                .build()
                .schedule();
    }
}

这将阻止安排多个工作