如何在 Android 10 中从后台启动 Activity？

我正在构建一个 Android 应用程序，我需要从后台启动一个活动。我正在使用 ForegroundStarter 来扩展服务来完成此任务。我有一个活动 Adscreen.class，我需要从前台服务运行它。活动 Adscreen.class 在除 Android 10 之外的所有 Android 版本上都能正常工作（从后台启动）。

ForeGroundStarter.class

public class ForeGroundStarter extends Service {
    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }



    @Override
    public void onCreate() {
        super.onCreate();
        Log.d("sK", "Inside Foreground");

    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.d("sK", "Inside Foreground onStartCommand");
        Intent notificationIntent = new Intent(this, Adscreen.class);
        PendingIntent pendingIntent =
                PendingIntent.getActivity(this, 0, notificationIntent, 0);


        Notification notification =
                null;

        //Launching Foreground Services From API 26+

        notificationIntent = new Intent(this, Adscreen.class);
        pendingIntent =
                PendingIntent.getActivity(this, 0, notificationIntent, 0);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            String NOTIFICATION_CHANNEL_ID = "com.currency.usdtoinr";
            String channelName = "My Background Service";
            NotificationChannel chan = null;
            chan = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName, NotificationManager.IMPORTANCE_NONE);
            chan.setLightColor(Color.BLUE);
            chan.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
            NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            assert manager != null;
            manager.createNotificationChannel(chan);

            NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);
            notification = notificationBuilder.setOngoing(true)
                    .setSmallIcon(R.drawable.nicon)
                    .setContentTitle("")
                    .setPriority(NotificationManager.IMPORTANCE_MIN)
                    .setCategory(Notification.CATEGORY_SERVICE)
                    .build();
            startForeground(2, notification);


            Intent dialogIntent = new Intent(this, Adscreen.class);
            dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(dialogIntent);
            Log.d("sk", "After startforeground executed");

        }



        else //API 26 and lower
            {
                notificationIntent = new Intent(this, Adscreen.class);
                pendingIntent =
                        PendingIntent.getActivity(this, 0, notificationIntent, 0);

                notification =
                        new Notification.Builder(this)
                                .setContentTitle("")
                                .setContentText("")
                                .setSmallIcon(R.drawable.nicon)
                                .setContentIntent(pendingIntent)
                                .setTicker("")
                                .build();

                startForeground(2, notification);
                Intent dialogIntent = new Intent(this, Adscreen.class);
                dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(dialogIntent);
            }




        return super.onStartCommand(intent, flags, startId);

    }
}

我读到 Android 10 上从后台启动活动有一些限制。此代码似乎不再起作用。https://developer.android.com/guide/components/activities/background-starts https://developer.android.com/guide/components/activities/background-starts

Intent dialogIntent = new Intent(this, Adscreen.class);
            dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(dialogIntent);

在 Android 10 上有从后台启动 Activity 的解决方法吗？

不确定这样做是否正确，但我没有足够的时间（应用程序仅供公司内部使用）。

我使用的权限：

<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>

然后每个用户都必须转到应用程序的设置 -> 权限，然后在高级设置中选中“在其他应用程序上显示应用程序”功能

抱歉我的英语或不完全正确的解决方案，但它有效，对我来说是很好的修补程序。

On Pixel 4 it will be looking like this: