Java Task类代码示例

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
private void scheduleDispatchLocationService() {

        if(endpoints == null) {
            return;
        }

        Bundle bundle = new Bundle();
        try {
            bundle.putString(Constants.ENDPOINTS_KEY, OpenLocate.Endpoint.toJson(endpoints));
        } catch (JSONException e) {
            e.printStackTrace();
        }

        PeriodicTask task = new PeriodicTask.Builder()
                .setExtras(bundle)
                .setService(DispatchLocationService.class)
                .setPeriod(transmissionIntervalInSecs)
                .setRequiredNetwork(Task.NETWORK_STATE_CONNECTED)
                .setRequiresCharging(false)
                .setPersisted(true)
                .setUpdateCurrent(true)
                .setTag(LOCATION_DISPATCH_TAG)
                .build();

        networkManager.schedule(task);
    }
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
/**
 * For the given Triggering conditions, start a new GCM Network Manager request allowed
 * to run after {@code delayStartSecs} seconds.
 */
private static void schedule(Context context, TriggerConditions triggerConditions,
        long delayStartSecs, boolean overwrite) {
    // Get the GCM Network Scheduler.
    GcmNetworkManager gcmNetworkManager = GcmNetworkManager.getInstance(context);

    Bundle taskExtras = new Bundle();
    TaskExtrasPacker.packTimeInBundle(taskExtras);
    TaskExtrasPacker.packTriggerConditionsInBundle(taskExtras, triggerConditions);

    Task task = new OneoffTask.Builder()
                        .setService(ChromeBackgroundService.class)
                        .setExecutionWindow(delayStartSecs, ONE_WEEK_IN_SECONDS)
                        .setTag(OfflinePageUtils.TASK_TAG)
                        .setUpdateCurrent(overwrite)
                        .setRequiredNetwork(triggerConditions.requireUnmeteredNetwork()
                                        ? Task.NETWORK_STATE_UNMETERED
                                        : Task.NETWORK_STATE_CONNECTED)
                        .setRequiresCharging(triggerConditions.requirePowerConnected())
                        .setExtras(taskExtras)
                        .build();

    gcmNetworkManager.schedule(task);
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
/**
 * Schedules a future task to start download resumption.
 * @param allowMeteredConnection Whether download resumption can start if connection is metered.
 */
public void schedule(boolean allowMeteredConnection) {
    GcmNetworkManager gcmNetworkManager = GcmNetworkManager.getInstance(mContext);
    int networkType = allowMeteredConnection
            ? Task.NETWORK_STATE_CONNECTED : Task.NETWORK_STATE_UNMETERED;
    OneoffTask task = new OneoffTask.Builder()
            .setService(ChromeBackgroundService.class)
            .setExecutionWindow(0, ONE_DAY_IN_SECONDS)
            .setTag(TASK_TAG)
            .setUpdateCurrent(true)
            .setRequiredNetwork(networkType)
            .setRequiresCharging(false)
            .build();
    try {
        gcmNetworkManager.schedule(task);
    } catch (IllegalArgumentException e) {
        Log.e(TAG, "unable to schedule resumption task.", e);
    }
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
private static boolean scheduleLaunchTask(
        Context context, GcmNetworkManager scheduler, long minDelayMs) {
    // Google Play Services may not be up to date, if the application was not installed through
    // the Play Store. In this case, scheduling the task will fail silently.
    final long minDelaySecs = minDelayMs / 1000;
    OneoffTask oneoff = new OneoffTask.Builder()
                                .setService(ChromeBackgroundService.class)
                                .setTag(TASK_TAG)
                                // We have to set a non-zero execution window here
                                .setExecutionWindow(minDelaySecs, minDelaySecs + 1)
                                .setRequiredNetwork(Task.NETWORK_STATE_CONNECTED)
                                .setPersisted(true)
                                .setUpdateCurrent(true)
                                .build();
    try {
        scheduler.schedule(oneoff);
    } catch (IllegalArgumentException e) {
        // Disable GCM for the remainder of this session.
        setGCMEnabled(false);
        // Return false so that the failure will be logged.
        return false;
    }
    return true;
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
@Override
public void onClick(View v) {
    SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(AccountSettingsActivity.this);
    sharedPreferences.edit().putString("firstName", firstName.getText().toString()).apply();
    sharedPreferences.edit().putString("lastName", lastName.getText().toString()).apply();
    sharedPreferences.edit().putString("age",age.getText().toString()).apply();

    GcmNetworkManager gcmNM = GcmNetworkManager.getInstance(AccountSettingsActivity.this);
    Log.i(TAG, "Registering the BackupTask");
    OneoffTask task = new OneoffTask.Builder()
            .setService(MyBackupService.class)
            .setTag(TASK_BACKUP)
            .setExecutionWindow(0L, ONE_HOUR)
            .setRequiredNetwork(Task.NETWORK_STATE_UNMETERED)
            .setRequiresCharging(true)
            .setUpdateCurrent(true)
            .build();

    gcmNM.schedule(task);
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
public void startWifiTask() {
    Log.d(TAG, "startWiFiTask");

    // Disable WiFi so the task does not start immediately
    WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    wifi.setWifiEnabled(false);

    // [START start_one_off_task]
    OneoffTask task = new OneoffTask.Builder()
            .setService(MyTaskService.class)
            .setTag(TASK_TAG_WIFI)
            .setExecutionWindow(0L, 3600L)
            .setRequiredNetwork(Task.NETWORK_STATE_UNMETERED)
            .build();

    mGcmNetworkManager.schedule(task);
    // [END start_one_off_task]
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
private void sendRegistrationToServer(String token) {
    try {
        Log.d(TAG, "Scheduling tasks");
        PeriodicTask task = new PeriodicTask.Builder()
                .setService(TaskService.class)
                .setTag(GcmActivity.TASK_TAG_UNMETERED)
                .setRequiredNetwork(Task.NETWORK_STATE_UNMETERED)
                .setPeriod(7200L)
                .build();

        GcmNetworkManager.getInstance(this).cancelAllTasks(TaskService.class);
        GcmNetworkManager.getInstance(this).schedule(task);
        PlusSyncService.startSyncService(getApplicationContext(), "RegistrationToServer");
        GcmActivity.queueCheckOld(getApplicationContext());
    } catch (Exception e) {
        Log.e(TAG, "Exception in sendRegistration: " + e.toString());
    }
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
/**
 * Schedule all sensor LOGS upload one time task
 *
 * @param context
 */
private void scheduleSensorLogsUploadTask(Context context) {

    Log.d(TAG, "Scheduling logs upload one time task...");

    OneoffTask oneTimeTask = new Builder()
            .setService(LogsUploadService.class)
            .setExecutionWindow(UPLOAD_ALL_TASKS_START_SECS,
                    UPLOAD_ALL_TASKS_END_SECS)
            .setTag("onetimetag | 2")
            .setPersisted(true)
            .setUpdateCurrent(true)
            .setRequiredNetwork(Task.NETWORK_STATE_ANY)
            .setRequiresCharging(false)
            .build();

    GcmNetworkManager.getInstance(context).schedule(oneTimeTask);

    Log.d(TAG, "Logs upload task was scheduled!");
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
/**
 * Schedules an periodic upload task
 */
public static void scheduleOneTimeTask(Context context, long startSecs, long endSecs, String tag) {

    Log.d(TAG, "Scheduling one time task...");

    Bundle bundle = new Bundle();
    bundle.putInt(UPLOAD_ALL_FLAG_NAME, UPLOAD_ALL_FLAG_VALUE);

    OneoffTask oneTimeTask = new Builder()
            .setService(SensorUploadService.class)
            .setExecutionWindow(startSecs, endSecs)
            .setTag(tag)
            .setPersisted(true)
            .setUpdateCurrent(true)
            .setRequiredNetwork(Task.NETWORK_STATE_ANY)
            .setRequiresCharging(false)
            .setExtras(bundle)
            .build();

    GcmNetworkManager.getInstance(context).schedule(oneTimeTask);

    Log.d(TAG, "One time task was scheduled!");
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
@Override public void scheduleAction(ScheduledAction action) {

    AndroidBasicAction androidBasicAction = androidBasicActionMapper.modelToExternalClass(
        action.getBasicAction());

    Bundle bundle = new Bundle();
    bundle.putString(BUNDLE_TASK_PARAM_NAME, gson.toJson(androidBasicAction));

    OneoffTask task = new OneoffTask.Builder()
        .setService(OrchextraGcmTaskService.class)
        .setTag(action.getId())
        .setExecutionWindow(action.getScheduleTime()/ONE_SECOND, (action.getScheduleTime()/ONE_SECOND)+DEFAULT_DELAY_MAX)
        .setPersisted(true)
        .setRequiresCharging(false)
        .setRequiredNetwork(Task.NETWORK_STATE_ANY)
        .setExtras(bundle)
        .build();

    logShowTime(action);

    orchextraLogger.log("Scheduled action "+ action.getId());

    gcmNetworkManager.schedule(task);
  }
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
/**
 * Schedules a future task to start download resumption.
 * @param allowMeteredConnection Whether download resumption can start if connection is metered.
 */
public void schedule(boolean allowMeteredConnection) {
    GcmNetworkManager gcmNetworkManager = GcmNetworkManager.getInstance(mContext);
    int networkType = allowMeteredConnection
            ? Task.NETWORK_STATE_CONNECTED : Task.NETWORK_STATE_UNMETERED;
    OneoffTask task = new OneoffTask.Builder()
                              .setService(ChromeBackgroundService.class)
                              .setExecutionWindow(0, ONE_DAY_IN_SECONDS)
                              .setTag(TASK_TAG)
                              .setUpdateCurrent(true)
                              .setRequiredNetwork(networkType)
                              .setRequiresCharging(false)
                              .build();
    try {
        gcmNetworkManager.schedule(task);
    } catch (IllegalArgumentException e) {
        Log.e(TAG, "unable to schedule resumption task.", e);
    }
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
private static boolean scheduleLaunchTask(GcmNetworkManager scheduler, long minDelayMs) {
    // Google Play Services may not be up to date, if the application was not installed through
    // the Play Store. In this case, scheduling the task will fail silently.
    final long minDelaySecs = minDelayMs / 1000;
    OneoffTask oneoff = new OneoffTask.Builder()
                                .setService(ChromeBackgroundService.class)
                                .setTag(TASK_TAG)
                                // We have to set a non-zero execution window here
                                .setExecutionWindow(minDelaySecs, minDelaySecs + 1)
                                .setRequiredNetwork(Task.NETWORK_STATE_CONNECTED)
                                .setPersisted(true)
                                .setUpdateCurrent(true)
                                .build();
    try {
        scheduler.schedule(oneoff);
    } catch (IllegalArgumentException e) {
        // Disable GCM for the remainder of this session.
        setGCMEnabled(false);
        // Return false so that the failure will be logged.
        return false;
    }
    return true;
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
@VisibleForTesting
static Task createTaskFromTaskInfo(@NonNull TaskInfo taskInfo) {
    Bundle taskExtras = new Bundle();
    taskExtras.putString(
            BACKGROUND_TASK_CLASS_KEY, taskInfo.getBackgroundTaskClass().getName());
    taskExtras.putBundle(BACKGROUND_TASK_EXTRAS_KEY, taskInfo.getExtras());

    Task.Builder builder;
    if (taskInfo.isPeriodic()) {
        builder = getPeriodicTaskBuilder(taskInfo.getPeriodicInfo());
    } else {
        builder = getOneOffTaskBuilder(taskInfo.getOneOffInfo());
    }

    builder.setExtras(taskExtras)
            .setPersisted(taskInfo.isPersisted())
            .setRequiredNetwork(getGcmNetworkManagerNetworkTypeFromTypeFromTaskNetworkType(
                    taskInfo.getRequiredNetworkType()))
            .setRequiresCharging(taskInfo.requiresCharging())
            .setService(BackgroundTaskGcmTaskService.class)
            .setTag(taskIdToTaskTag(taskInfo.getTaskId()))
            .setUpdateCurrent(taskInfo.shouldUpdateCurrent());

    return builder.build();
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
@Override
public boolean schedule(Context context, @NonNull TaskInfo taskInfo) {
    ThreadUtils.assertOnUiThread();
    if (!BackgroundTaskScheduler.hasParameterlessPublicConstructor(
                taskInfo.getBackgroundTaskClass())) {
        Log.e(TAG,
                "BackgroundTask " + taskInfo.getBackgroundTaskClass()
                        + " has no parameterless public constructor.");
        return false;
    }

    GcmNetworkManager gcmNetworkManager = getGcmNetworkManager(context);
    if (gcmNetworkManager == null) {
        Log.e(TAG, "GcmNetworkManager is not available.");
        return false;
    }

    Task task = createTaskFromTaskInfo(taskInfo);

    gcmNetworkManager.schedule(task);
    return true;
}
 

import com.google.android.gms.gcm.Task; //导入依赖的package包/类
public static void scheduleOneOff(Context context, String what) {
        Bundle extras = new Bundle();
        extras.putString(EXTRA_KEY, what);
        OneoffTask task = new OneoffTask.Builder()
                .setService(NetworkGCMTaskService.class)
                .setTag(TASK_NETWORK_TAG)
                .setExtras(extras)
//                Execution window: The time period in which the task will execute.
//                First param is the lower bound and the second is the upper bound (both are in seconds).
                .setExecutionWindow(0L, 30L)
                .setRequiredNetwork(Task.NETWORK_STATE_CONNECTED)
                .setUpdateCurrent(true)
                .build();

        GcmNetworkManager.getInstance(context).schedule(task);
    }