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