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.privacy;
18 
19 import android.accessibilityservice.AccessibilityServiceInfo;
20 import android.content.Context;
21 import android.view.accessibility.AccessibilityManager;
22 
23 import androidx.annotation.NonNull;
24 import androidx.preference.Preference;
25 
26 import com.android.settings.R;
27 import com.android.settings.core.BasePreferenceController;
28 
29 import java.util.List;
30 
31 
32 public class AccessibilityUsagePreferenceController extends BasePreferenceController  {
33 
34     private final @NonNull List<AccessibilityServiceInfo> mEnabledServiceInfos;
35 
AccessibilityUsagePreferenceController(Context context, String preferenceKey)36     public AccessibilityUsagePreferenceController(Context context, String preferenceKey) {
37         super(context, preferenceKey);
38 
39         final AccessibilityManager accessibilityManager = context.getSystemService(
40                 AccessibilityManager.class);
41         mEnabledServiceInfos = accessibilityManager.getEnabledAccessibilityServiceList(
42                 AccessibilityServiceInfo.FEEDBACK_ALL_MASK);
43     }
44 
45     @Override
getAvailabilityStatus()46     public int getAvailabilityStatus() {
47         return mEnabledServiceInfos.isEmpty() ? UNSUPPORTED_ON_DEVICE : AVAILABLE;
48     }
49 
50     @Override
getSummary()51     public CharSequence getSummary() {
52         return mContext.getResources().getQuantityString(R.plurals.accessibility_usage_summary,
53                 mEnabledServiceInfos.size(), mEnabledServiceInfos.size());
54     }
55 }
56