1 /*
2  * Copyright (C) 2017 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.development.featureflags;
18 
19 import android.content.Context;
20 import android.os.Build;
21 import android.util.FeatureFlagUtils;
22 
23 import androidx.preference.PreferenceGroup;
24 import androidx.preference.PreferenceScreen;
25 
26 import com.android.settings.core.BasePreferenceController;
27 
28 import java.util.Map;
29 
30 /**
31  * A {@link BasePreferenceController} used in {@link FeatureFlagsDashboard}
32  */
33 public class FeatureFlagsPreferenceController extends BasePreferenceController {
34 
35     private PreferenceGroup mGroup;
36 
FeatureFlagsPreferenceController(Context context, String key)37     public FeatureFlagsPreferenceController(Context context, String key) {
38         super(context, key);
39     }
40 
41     @Override
getAvailabilityStatus()42     public int getAvailabilityStatus() {
43         return Build.IS_DEBUGGABLE ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
44     }
45 
46     @Override
displayPreference(PreferenceScreen screen)47     public void displayPreference(PreferenceScreen screen) {
48         super.displayPreference(screen);
49         mGroup = screen.findPreference(getPreferenceKey());
50         final Map<String, String> featureMap = FeatureFlagUtils.getAllFeatureFlags();
51         if (featureMap == null) {
52             return;
53         }
54         mGroup.removeAll();
55         final Context prefContext = mGroup.getContext();
56         featureMap.keySet().stream().sorted().forEach(feature ->
57                 mGroup.addPreference(new FeatureFlagPreference(prefContext, feature)));
58     }
59 }
60