在ContentProvider中获取Workmanager实例

Question

我想在内容提供商中安排任务：

class LogProvider : ContentProvider() {
    override fun onCreate(): Boolean {
        Log.i("Lagg", "Initializing LogCollection")
        return try {
            context?.let { LogCollectionInitializer().initializeCollector(it) }
            true
        } catch (e: Exception) {
            false
        }
    }
    // ...
}

初始化器计划工作：

WorkManager.getInstance()
                .enqueueUniquePeriodicWork(
                        CleanLogDatabaseTask.DB_CLEANER_TASK_NAME,
                        ExistingPeriodicWorkPolicy.KEEP,
                        PeriodicWorkRequestBuilder<CleanLogDatabaseTask>(DB_CLEANING_INTERVAL, TimeUnit.MILLISECONDS)
                                .setBackoffCriteria(BackoffPolicy.LINEAR, PeriodicWorkRequest.MIN_BACKOFF_MILLIS, TimeUnit.MILLISECONDS)
                                .build()
                )

问题是我遇到此错误：

 java.lang.IllegalStateException: WorkManager is not initialized properly.  The most likely cause is that you disabled WorkManagerInitializer in your manifest but forgot to call WorkManager#initialize in your Application#onCreate or a ContentProvider.

• 不，我没有禁用Workmanager Init。到底是什么引起了这个问题？

当我从内容提供商访问工人时，我的行为是否会有所不同？

Answer 1

众所周知，Workmanager拥有自己的内容提供商。因此，如果您将其覆盖并将其设置为更高的优先级，则将在其他提供商面前初始化。所以这里：

            android:name="androidx.work.impl.WorkManagerInitializer"
            android:authorities="${applicationId}.workmanager-init"
            android:initOrder="11"
            android:enabled="true"
            android:exported="false" /> ```