GCM网络管理员 - 定期任务未触发

时间:2015-07-14 02:12:02

标签: android google-cloud-messaging android-jobscheduler

我尝试使用GcmNetworkManager在我的应用中安排定期任务,该任务运行到API级别17.我按照GCM网络管理器页面上的说明设置了所有内容({{3 }}):

在我的AndroidManifest.xml中,我有:

<service
    android:name=".services.MyService"
    android:exported="true"
    android:permission="com.google.android.gms.permission.BIND_NETWORK_TASK_SERVICE">
    <intent-filter>
        <action android:name="com.google.android.gms.gcm.ACTION_TASK_READY"/>
    </intent-filter>
</service>

在我的申请中,我有:

long periodSecs = 30L; // the task should be executed every 30 seconds
long flexSecs = 15L; // the task can run as early as -15 seconds from the scheduled time

String tag = "myScan|1";

PeriodicTask periodic = new PeriodicTask.Builder()
        .setService(MyService.class)
        .setPeriod(periodSecs)
        .setFlex(flexSecs)
        .setTag(tag)
        .setPersisted(false)
        .setRequiredNetwork(com.google.android.gms.gcm.Task.NETWORK_STATE_ANY)
        .setRequiresCharging(false)
        .setUpdateCurrent(true)
        .build();

GcmNetworkManager.getInstance(this).schedule(periodic);

我有MyService,看起来像:

public class MyService extends GcmTaskService {
    @Override
    public int onRunTask(TaskParams taskParams) {
        Log.info("onRunTask: " + taskParams.getTag());

        return GcmNetworkManager.RESULT_SUCCESS;
    }

    @Override
    public int onStartCommand (Intent intent, int flags, int startId) {
        Log.info("onStartCommand");

        return GcmTaskService.START_STICKY_COMPATIBILITY;
    }
}

当我启动应用时,我按预期记录 onStartCommand ,但 onRunTask 永远不会被调用。我错过了什么吗?我期待着,一旦启动(由启动命令触发证明),它应该每15-30秒运行一次 - 这是一个正确的假设吗?为什么它根本没有被解雇?

谢谢!

1 个答案:

答案 0 :(得分:1)

@Override
public int onRunTask(TaskParams taskParams)
{
    Log.info("onRunTask: " + taskParams.getTag());

    return GcmNetworkManager.RESULT_SUCCESS;
}

@Override
public void onCreate()
{
    Log.i(TAG, "in onCreate");
    super.onCreate();
    GcmNetworkManager.getInstance(this).schedule(createPeriodicSyncTask());
}

private PeriodicTask createPeriodicSyncTask()
{
    return new PeriodicTask.Builder()
            .setService(PeriodicSyncService.class)
            .setPeriod(mSyncIntervalInSec)
            .setFlex(mSyncIntervalInSec - 20)
            .setTag(TAG)
            .setPersisted(true)
            .setRequiredNetwork(NETWORK_STATE_ANY)
            .setUpdateCurrent(true)
            .setRequiresCharging(false)
            .build();
}