Android 在定义的时间间隔内安排作业

Question

我想知道 Android SDK 中的某些调度库是否有可能实现此类行为：

安排一些工作（例如 ping 网络）
每X秒执行一次
执行持续 Y 分钟

有一些类似 ScheduledThreadPoolExecutor 和一些自定义解决方案的东西，但我如何使用官方批准的库实现这些？谢谢

Answer 1

工作管理器是作业安排的最佳选择。

一次性请求。

val workManager = WorkManager.getInstance(context)
val oneTimeRequest = OneTimeWorkRequest.Builder(BackupFileUploadWorker::class.java)
                .setConstraints(constraints)
                .build() 
workManager.enqueueUniqueWork(BackupFileUploadWorker::class.java.simpleName, ExistingWorkPolicy.REPLACE, oneTimeRequest)

定期请求。

var builder : PeriodicWorkRequest.Builder? = null
var periodicWorkRequest : PeriodicWorkRequest? = null

when(backupSettings.backupDuration){
    context.getString(R.string.backup_type_duration_never) -> {
        return
    }
    context.getString(R.string.backup_type_duration_daily) -> {
        builder = PeriodicWorkRequest.Builder(BackupFileUploadWorker::class.java, 1, TimeUnit.DAYS)
    }
    context.getString(R.string.backup_type_duration_weekly) -> {
        builder = PeriodicWorkRequest.Builder(BackupFileUploadWorker::class.java, 7, TimeUnit.DAYS)
    }
    context.getString(R.string.backup_type_duration_monthly) -> {
        builder = PeriodicWorkRequest.Builder(BackupFileUploadWorker::class.java, 30, TimeUnit.DAYS)
    }
}

periodicWorkRequest = builder?.build()
workManager.enqueueUniquePeriodicWork(BackupFileUploadWorker::class.java.simpleName, ExistingPeriodicWorkPolicy.REPLACE, periodicWorkRequest!!)

更多详情请参考本[工作经理]的官方文档(https://developer.android.com/topic/libraries/architecture/workmanager)

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