Android Oreo中的通知被延迟

幽沉谢世事，俯默窥唐虞。这篇文章主要讲述Android Oreo中的通知被延迟相关的知识，希望能为你提供帮助。
我正在使用一个在Marshmallow中运行良好的提醒应用程序，但我刚买了一台带有android Oreo的Xperia XZ1小巧，并且通知被延迟或甚至根本没有显示。当提醒的时间响起时，手机什么都不做，但如果我解锁屏幕，则会突然显示通知。根据应用程序的日志，我的广播接收器及时工作并接收警报，然后成功生成通知。但系统推迟显示通知，我不知道原因。我的应用程序已获得所有通知权限，配置为从节电保护程序中忽略，等等。以下是显示通知的代码。正如我所说，这段代码总是及时执行，但通知的声音会延迟一个随机的分钟数，或直到我手动打开屏幕。
有没有什么办法解决这一问题？

private void makeNotification(Long rowId, String title, String body) { android.app.NotificationManager mgr = (android.app.NotificationManager)context.getSystemService(NOTIFICATION_SERVICE); Intent notificationIntent; long notificationId; PendingIntent pi; if (rowId == null) { notificationId = 0; notificationIntent = new Intent(context, ReminderListActivity.class); pi = PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT); } else { notificationId = rowId; notificationIntent = new Intent(context, ReminderEditActivity.class); notificationIntent.putExtra(RemindersDbAdapter.KEY_ROWID, rowId); long rowIdPrimitive = rowId; pi = PendingIntent.getActivity(context, (int)rowIdPrimitive, notificationIntent, PendingIntent.FLAG_ONE_SHOT); }NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context) .setSmallIcon(android.R.drawable.stat_sys_warning) .setContentTitle(title) .setContentText(body) .setContentIntent(pi) .setStyle(new NotificationCompat.BigTextStyle().bigText(body)); Notification note = mBuilder.build(); note.defaults |= Notification.DEFAULT_SOUND; note.flags |= Notification.FLAG_AUTO_CANCEL; // An issue could occur if user ever enters over 2,147,483,647 tasks. (Max int value). // I highly doubt this will ever happen. But is good to note. int id = (int)((long)notificationId); mgr.notify(id, note); NotificationManager.setNotified(context, id); }

答案这种情况会发生，但对于Oreo，您不需要提供频道和群组

if (Build.VERSION.SDK_INT > = Build.VERSION_CODES.O) { if (LOG_DEBUG) Log.v(TAG, " : version : > =O "); NotificationChannel mChannel = new NotificationChannel (NOTIFICATION_CHANNEL_ID, NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH); mChannel.setDescription(NOTIFICATION_CHANNEL_DESCRIPTION); mChannel.enableLights(true); mChannel.setLightColor(Color.CYAN); mChannel.enableVibration(true); notificationManager.createNotificationChannel(mChannel); NotificationChannelGroup mGroup = new NotificationChannelGroup(NOTIFICATION_GROUP_ID, NOTIFICATION_GROUP_NAME); notificationManager.createNotificationChannelGroup(mGroup); NotificationCompat.Builder builder = new NotificationCompat.Builder (context, NOTIFICATION_CHANNEL_ID).setContentTitle(context.getString(R.string.notification_title)) .setContentText(context.getString(R.string.notification_subtext)) .setSmallIcon(R.drawable.ic_pawprint) .setAutoCancel(true) .setDeleteIntent(piDismiss) //.setContentIntent(pIpanel) .setCustomContentView(collapsedView) .setCustomBigContentView(expandedView) .setStyle(new NotificationCompat.DecoratedCustomViewStyle()); notification = builder.build(); }if (notificationManager != null) { notificationManager.notify(NOTIFICATION_ID, notification); }

【Android Oreo中的通知被延迟】这个完美打击