1 /*
2  * Copyright (C) 2018 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.tv.settings.device.apps.specialaccess;
18 
19 import android.app.ActivityManager;
20 import android.content.Context;
21 import android.os.Bundle;
22 
23 import androidx.annotation.Keep;
24 import androidx.annotation.VisibleForTesting;
25 import androidx.preference.Preference;
26 
27 import com.android.internal.logging.nano.MetricsProto;
28 import com.android.tv.settings.R;
29 import com.android.tv.settings.SettingsPreferenceFragment;
30 
31 /**
32  * Screen for Special App Access items
33  */
34 @Keep
35 public class SpecialAppAccess extends SettingsPreferenceFragment {
36 
37     @VisibleForTesting
38     static final String KEY_FEATURE_PIP = "picture_in_picture";
39     static final String KEY_FEATURE_NOTIFICATION_ACCESS = "notification_access";
40     private static final String[] DISABLED_FEATURES_LOW_RAM_TV =
41             new String[]{KEY_FEATURE_PIP, KEY_FEATURE_NOTIFICATION_ACCESS};
42 
43     @Override
onCreatePreferences(Bundle savedInstanceState, String rootKey)44     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
45         setPreferencesFromResource(R.xml.special_app_access, null);
46 
47         updatePreferenceStates();
48     }
49 
50     @Override
getMetricsCategory()51     public int getMetricsCategory() {
52         return MetricsProto.MetricsEvent.SPECIAL_ACCESS;
53     }
54 
55     @VisibleForTesting
updatePreferenceStates()56     void updatePreferenceStates() {
57         ActivityManager activityManager = (ActivityManager) getContext()
58                 .getSystemService(Context.ACTIVITY_SERVICE);
59         if (activityManager.isLowRamDevice()) {
60             for (String disabledFeature : DISABLED_FEATURES_LOW_RAM_TV) {
61                 removePreference(disabledFeature);
62             }
63         }
64     }
65 
66     @VisibleForTesting
removePreference(String key)67     void removePreference(String key) {
68         final Preference preference = findPreference(key);
69         if (preference != null) {
70             getPreferenceScreen().removePreference(preference);
71         }
72     }
73 }
74