如何解决带有前台服务的 Android Worker 不显示通知
我正在关注 this documentation 创建一个运行前台服务的长期工作人员,但未显示任何通知。
工人跑了,我看到了日志。
代码:
override suspend fun doWork(): Result {
Log.d(TAG,"Worker start")
setForeground(createForegroundInfo("Hello from my notification"))
Log.d(TAG,"Worker end")
return Result.success()
}
private fun createForegroundInfo(progress: String): ForegroundInfo {
val channelId = applicationContext.getString(R.string.notification_channel_id)
val title = applicationContext.getString(R.string.notification_title)
// This PendingIntent can be used to cancel the worker
val intent = WorkManager.getInstance(applicationContext)
.createCancelPendingIntent(getId())
// Create a Notification channel if necessary
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
createChannel()
}
val notification = NotificationCompat.Builder(applicationContext,channelId)
.setContentTitle(title)
.setTicker(title)
.setContentText(progress)
.setSmallIcon(R.drawable.ic_notifications_black_24dp)
.setOngoing(true)
.build()
return ForegroundInfo(1,notification)
}
@RequiresApi(Build.VERSION_CODES.O)
private fun createChannel() {
// Create the NotificationChannel,but only on API 26+ because
// the NotificationChannel class is new and not in the support library
val name = applicationContext.getString(R.string.notification_channel_name)
val descriptionText = applicationContext.getString(R.string.notification_channel_description)
val importance = NotificationManager.IMPORTANCE_DEFAULT
val channelId = applicationContext.getString(R.string.notification_channel_id)
val channel = NotificationChannel(channelId,name,importance).apply {
description = descriptionText
}
// Register the channel with the system
val notificationManager: NotificationManager = applicationContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
notificationManager.createNotificationChannel(channel)
}
解决方法
问题在于 doWork
函数持续时间太短,不足以看到通知。
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。