昨晚我将操作系统版本更新为android 10,从那时起,广播接收器中的startActivity函数什么都不做。这是我根据CommonsWare的答案尝试开始活动的方式:
Intent i = new Intent(context, AlarmNotificationActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { // This is at least android 10...
Log.d("Debug", "This is android 10");
// Start the alert via full-screen intent.
PendingIntent startAlarmPendingIntent = PendingIntent.getBroadcast(context, 0, i, PendingIntent.FLAG_UPDATE_CURRENT);
String CHANNEL_ID = "my_channel_02";
NotificationChannel channel = new NotificationChannel(CHANNEL_ID,
context.getString(R.string.notification_channel_name_second),
NotificationManager.IMPORTANCE_HIGH);
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.createNotificationChannel(channel);
NotificationCompat.Builder builder = new NotificationCompat.Builder(context, CHANNEL_ID)
.setContentTitle("Um, hi!")
.setAutoCancel(true)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setFullScreenIntent(startAlarmPendingIntent, true);
Log.d("Debug", "Try to load screen");
notificationManager.notify(0, builder.build());
}
日志显示我正在进入notify命令,但没有任何反应。我正在请求清单上的USE_FULL_SCREEN_INTENT权限,因此我应该能够使用全屏意图。由于这个问题,我的应用现在无用了。有人知道如何解决吗?
大约六个月前宣布了Android 10开始后台活动的限制。您可以在文档中阅读有关它的更多信息。
Intent
而是使用具有关联的全屏的高优先级通知。请参阅文档。该示例应用程序通过WorkManager
触发需要提醒用户的后台事件来演示这一点。在这里,我使用高优先级通知,而不是直接启动活动:
val pi = PendingIntent.getActivity(
appContext,
0,
Intent(appContext, MainActivity::class.java),
PendingIntent.FLAG_UPDATE_CURRENT
)
val builder = NotificationCompat.Builder(appContext, CHANNEL_WHATEVER)
.setSmallIcon(R.drawable.ic_notification)
.setContentTitle("Um, hi!")
.setAutoCancel(true)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setFullScreenIntent(pi, true)
val mgr = appContext.getSystemService(NotificationManager::class.java)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O
&& mgr.getNotificationChannel(CHANNEL_WHATEVER) == null
) {
mgr.createNotificationChannel(
NotificationChannel(
CHANNEL_WHATEVER,
"Whatever",
NotificationManager.IMPORTANCE_HIGH
)
)
}
mgr.notify(NOTIF_ID, builder.build())
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