Merge "Fetch active notifications on a background thread." into tm-dev

import android.service.notification.StatusBarNotification;

import com.android.systemui.dagger.SysUISingleton;

import com.android.systemui.dagger.qualifiers.Background;

import com.android.systemui.statusbar.NotificationListener;

import com.android.systemui.statusbar.NotificationListener.NotificationHandler;

import com.android.systemui.statusbar.policy.CallbackController;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

import java.util.concurrent.Executor;

import javax.inject.Inject;

    @Inject

    public DreamOverlayNotificationCountProvider(

            NotificationListener notificationListener) {

            NotificationListener notificationListener,

            @Background Executor bgExecutor) {

        notificationListener.addNotificationHandler(mNotificationHandler);

        bgExecutor.execute(() -> {

                    Arrays.stream(notificationListener.getActiveNotifications())

                            .forEach(sbn -> mNotificationKeys.add(sbn.getKey()));

                    reportNotificationCountChanged();

                }

        );

    }

    @Override

        final StatusBarNotification[] notifications = {mNotification1};

        when(mNotificationListener.getActiveNotifications()).thenReturn(notifications);

        mProvider = new DreamOverlayNotificationCountProvider(mNotificationListener);

        mProvider = new DreamOverlayNotificationCountProvider(

                mNotificationListener, Runnable::run);

        mProvider.addCallback(mCallback);

    }