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.settings.fuelgauge.batterytip.tips;
18 
19 import android.content.Context;
20 
21 import com.android.settings.Utils;
22 import com.android.settings.fuelgauge.batterytip.AppInfo;
23 
24 import java.util.function.Predicate;
25 
26 /** {@link Predicate} for {@link AppInfo} to check whether it has label */
27 public class AppLabelPredicate implements Predicate<AppInfo> {
28 
29     private static AppLabelPredicate sInstance;
30     private Context mContext;
31 
getInstance(Context context)32     public static AppLabelPredicate getInstance(Context context) {
33         if (sInstance == null) {
34             sInstance = new AppLabelPredicate(context.getApplicationContext());
35         }
36 
37         return sInstance;
38     }
39 
AppLabelPredicate(Context context)40     private AppLabelPredicate(Context context) {
41         mContext = context;
42     }
43 
44     @Override
test(AppInfo appInfo)45     public boolean test(AppInfo appInfo) {
46         // Return true if app doesn't have label
47         return Utils.getApplicationLabel(mContext, appInfo.packageName) == null;
48     }
49 }
50