1 /* 2 * Copyright 2020 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 android.app.appsearch; 18 19 import android.annotation.NonNull; 20 import android.annotation.Nullable; 21 import android.os.Bundle; 22 23 import java.util.ArrayList; 24 import java.util.Collections; 25 import java.util.List; 26 import java.util.Objects; 27 28 /** 29 * This class represents a page of {@link SearchResult}s 30 * 31 * @hide 32 */ 33 public class SearchResultPage { 34 public static final String RESULTS_FIELD = "results"; 35 public static final String NEXT_PAGE_TOKEN_FIELD = "nextPageToken"; 36 private final long mNextPageToken; 37 38 @Nullable private List<SearchResult> mResults; 39 40 @NonNull private final Bundle mBundle; 41 SearchResultPage(@onNull Bundle bundle)42 public SearchResultPage(@NonNull Bundle bundle) { 43 mBundle = Objects.requireNonNull(bundle); 44 mNextPageToken = mBundle.getLong(NEXT_PAGE_TOKEN_FIELD); 45 } 46 47 /** Returns the {@link Bundle} of this class. */ 48 @NonNull getBundle()49 public Bundle getBundle() { 50 return mBundle; 51 } 52 53 /** Returns the Token to get next {@link SearchResultPage}. */ getNextPageToken()54 public long getNextPageToken() { 55 return mNextPageToken; 56 } 57 58 /** Returns all {@link android.app.appsearch.SearchResult}s of this page */ 59 @NonNull getResults()60 public List<SearchResult> getResults() { 61 if (mResults == null) { 62 ArrayList<Bundle> resultBundles = mBundle.getParcelableArrayList(RESULTS_FIELD); 63 if (resultBundles == null) { 64 mResults = Collections.emptyList(); 65 } else { 66 mResults = new ArrayList<>(resultBundles.size()); 67 for (int i = 0; i < resultBundles.size(); i++) { 68 mResults.add(new SearchResult(resultBundles.get(i))); 69 } 70 } 71 } 72 return mResults; 73 } 74 } 75