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.dialer.about;
18 
19 import android.content.Context;
20 import android.support.v4.content.AsyncTaskLoader;
21 import java.util.List;
22 
23 /** {@link AsyncTaskLoader} to load the list of licenses for the license menu activity. */
24 final class LicenseLoader extends AsyncTaskLoader<List<License>> {
25 
26   private List<License> licenses;
27 
LicenseLoader(Context context)28   LicenseLoader(Context context) {
29     // This must only pass the application context to avoid leaking a pointer to the Activity.
30     super(context.getApplicationContext());
31   }
32 
33   @Override
loadInBackground()34   public List<License> loadInBackground() {
35     return Licenses.getLicenses(getContext());
36   }
37 
38   @Override
deliverResult(List<License> licenses)39   public void deliverResult(List<License> licenses) {
40     this.licenses = licenses;
41     super.deliverResult(licenses);
42   }
43 
44   @Override
onStartLoading()45   protected void onStartLoading() {
46     if (licenses != null) {
47       deliverResult(licenses);
48     } else {
49       forceLoad();
50     }
51   }
52 
53   @Override
onStopLoading()54   protected void onStopLoading() {
55     cancelLoad();
56   }
57 }
58