1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.applications; 18 19 import android.app.usage.UsageStats; 20 import android.content.Context; 21 22 import androidx.annotation.NonNull; 23 import androidx.annotation.VisibleForTesting; 24 import androidx.preference.Preference; 25 import androidx.preference.PreferenceScreen; 26 27 import com.android.settings.R; 28 import com.android.settings.core.BasePreferenceController; 29 30 import java.util.List; 31 32 public class AllAppsInfoPreferenceController extends BasePreferenceController 33 implements RecentAppStatsMixin.RecentAppStatsListener { 34 35 @VisibleForTesting 36 Preference mPreference; 37 AllAppsInfoPreferenceController(Context context, String key)38 public AllAppsInfoPreferenceController(Context context, String key) { 39 super(context, key); 40 } 41 42 @Override getAvailabilityStatus()43 public int getAvailabilityStatus() { 44 return AVAILABLE; 45 } 46 47 @Override displayPreference(PreferenceScreen screen)48 public void displayPreference(PreferenceScreen screen) { 49 super.displayPreference(screen); 50 mPreference = screen.findPreference(getPreferenceKey()); 51 // In most cases, device has recently opened apps. So, we hide it by default. 52 mPreference.setVisible(false); 53 } 54 55 @Override onReloadDataCompleted(@onNull List<UsageStats> recentApps)56 public void onReloadDataCompleted(@NonNull List<UsageStats> recentApps) { 57 // If device has recently opened apps, we don't show all apps preference. 58 if (!recentApps.isEmpty()) { 59 mPreference.setVisible(false); 60 return; 61 } 62 63 mPreference.setVisible(true); 64 // Show total number of installed apps as See all's summary. 65 new InstalledAppCounter(mContext, InstalledAppCounter.IGNORE_INSTALL_REASON, 66 mContext.getPackageManager()) { 67 @Override 68 protected void onCountComplete(int num) { 69 mPreference.setSummary(mContext.getString(R.string.apps_summary, num)); 70 } 71 }.execute(); 72 } 73 } 74