1 /*
2  * Copyright (C) 2016 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 package com.android.settings.system;
17 
18 import android.app.settings.SettingsEnums;
19 import android.os.Bundle;
20 
21 import androidx.preference.Preference;
22 import androidx.preference.PreferenceGroup;
23 import androidx.preference.PreferenceScreen;
24 
25 import com.android.settings.R;
26 import com.android.settings.dashboard.DashboardFragment;
27 import com.android.settings.search.BaseSearchIndexProvider;
28 import com.android.settingslib.search.SearchIndexable;
29 
30 @SearchIndexable
31 public class SystemDashboardFragment extends DashboardFragment {
32 
33     private static final String TAG = "SystemDashboardFrag";
34 
35     @Override
onCreate(Bundle icicle)36     public void onCreate(Bundle icicle) {
37         super.onCreate(icicle);
38 
39         final PreferenceScreen screen = getPreferenceScreen();
40         // We do not want to display an advanced button if only one setting is hidden
41         if (getVisiblePreferenceCount(screen) == screen.getInitialExpandedChildrenCount() + 1) {
42             screen.setInitialExpandedChildrenCount(Integer.MAX_VALUE);
43         }
44     }
45 
46     @Override
getMetricsCategory()47     public int getMetricsCategory() {
48         return SettingsEnums.SETTINGS_SYSTEM_CATEGORY;
49     }
50 
51     @Override
getLogTag()52     protected String getLogTag() {
53         return TAG;
54     }
55 
56     @Override
getPreferenceScreenResId()57     protected int getPreferenceScreenResId() {
58         return R.xml.system_dashboard_fragment;
59     }
60 
61     @Override
getHelpResource()62     public int getHelpResource() {
63         return R.string.help_url_system_dashboard;
64     }
65 
getVisiblePreferenceCount(PreferenceGroup group)66     private int getVisiblePreferenceCount(PreferenceGroup group) {
67         int visibleCount = 0;
68         for (int i = 0; i < group.getPreferenceCount(); i++) {
69             final Preference preference = group.getPreference(i);
70             if (preference instanceof PreferenceGroup) {
71                 visibleCount += getVisiblePreferenceCount((PreferenceGroup) preference);
72             } else if (preference.isVisible()) {
73                 visibleCount++;
74             }
75         }
76         return visibleCount;
77     }
78 
79     /**
80      * For Search.
81      */
82     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
83             new BaseSearchIndexProvider(R.xml.system_dashboard_fragment);
84 }
85