1 /* 2 * Copyright (C) 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 package android.content.pm; 17 18 import android.annotation.NonNull; 19 import android.annotation.TestApi; 20 import android.os.Parcel; 21 import android.os.Parcelable; 22 23 import java.util.ArrayList; 24 import java.util.List; 25 26 /** 27 * Equivalent to List<ProviderInfo>, but it "squashes" the ApplicationInfo in the elements. 28 * 29 * @hide 30 */ 31 @TestApi 32 public final class ProviderInfoList implements Parcelable { 33 private final List<ProviderInfo> mList; 34 ProviderInfoList(Parcel source)35 private ProviderInfoList(Parcel source) { 36 final ArrayList<ProviderInfo> list = new ArrayList<>(); 37 source.readTypedList(list, ProviderInfo.CREATOR); 38 mList = list; 39 } 40 ProviderInfoList(List<ProviderInfo> list)41 private ProviderInfoList(List<ProviderInfo> list) { 42 mList = list; 43 } 44 45 @Override describeContents()46 public int describeContents() { 47 return 0; 48 } 49 50 @Override writeToParcel(@onNull Parcel dest, int flags)51 public void writeToParcel(@NonNull Parcel dest, int flags) { 52 // Allow ApplicationInfo to be squashed. 53 final boolean prevAllowSquashing = dest.allowSquashing(); 54 dest.writeTypedList(mList, flags); 55 dest.restoreAllowSquashing(prevAllowSquashing); 56 } 57 58 public static final @android.annotation.NonNull Parcelable.Creator<ProviderInfoList> CREATOR 59 = new Parcelable.Creator<ProviderInfoList>() { 60 @Override 61 public ProviderInfoList createFromParcel(@NonNull Parcel source) { 62 return new ProviderInfoList(source); 63 } 64 65 @Override 66 public ProviderInfoList[] newArray(int size) { 67 return new ProviderInfoList[size]; 68 } 69 }; 70 71 /** 72 * Return the stored list. 73 */ 74 @NonNull getList()75 public List<ProviderInfo> getList() { 76 return mList; 77 } 78 79 /** 80 * Create a new instance with a {@code list}. The passed list will be shared with the new 81 * instance, so the caller shouldn't modify it. 82 */ 83 @NonNull fromList(@onNull List<ProviderInfo> list)84 public static ProviderInfoList fromList(@NonNull List<ProviderInfo> list) { 85 return new ProviderInfoList(list); 86 } 87 } 88