| /* |
| * Copyright (C) 2021 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car.settings.applications; |
| |
| import android.app.usage.UsageStats; |
| import android.car.drivingstate.CarUxRestrictions; |
| import android.content.Context; |
| |
| import androidx.preference.Preference; |
| |
| import com.android.car.settings.R; |
| import com.android.car.settings.common.FragmentController; |
| import com.android.car.settings.common.PreferenceController; |
| |
| import java.util.List; |
| |
| /** |
| * Controller that shows when there is no recently used apps. |
| * Sets availability based on if there are recent apps and sets summary depending on number of |
| * non-system apps. |
| */ |
| public class AllAppsPreferenceController extends PreferenceController<Preference> implements |
| RecentAppsItemManager.RecentAppStatsListener, |
| InstalledAppCountItemManager.InstalledAppCountListener { |
| |
| // In most cases, device has recently opened apps. So, assume true by default. |
| private boolean mAreThereRecentlyUsedApps = true; |
| |
| public AllAppsPreferenceController(Context context, String preferenceKey, |
| FragmentController fragmentController, CarUxRestrictions uxRestrictions) { |
| super(context, preferenceKey, fragmentController, uxRestrictions); |
| } |
| |
| @Override |
| protected Class<Preference> getPreferenceType() { |
| return Preference.class; |
| } |
| |
| @Override |
| public int getDefaultAvailabilityStatus() { |
| return mAreThereRecentlyUsedApps ? CONDITIONALLY_UNAVAILABLE : AVAILABLE; |
| } |
| |
| @Override |
| public void onRecentAppStatsLoaded(List<UsageStats> recentAppStats) { |
| mAreThereRecentlyUsedApps = !recentAppStats.isEmpty(); |
| refreshUi(); |
| } |
| |
| @Override |
| public void onInstalledAppCountLoaded(int appCount) { |
| getPreference().setSummary(getContext().getResources().getString( |
| R.string.apps_view_all_apps_title, appCount)); |
| } |
| } |