1 /* 2 * Copyright (C) 2013 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.os; 18 19 import android.util.MathUtils; 20 21 /** 22 * Parcelable containing a raw Parcel of data. 23 * @hide 24 */ 25 public class ParcelableParcel implements Parcelable { 26 final Parcel mParcel; 27 final ClassLoader mClassLoader; 28 29 public ParcelableParcel(ClassLoader loader) { 30 mParcel = Parcel.obtain(); 31 mClassLoader = loader; 32 } 33 34 public ParcelableParcel(Parcel src, ClassLoader loader) { 35 mParcel = Parcel.obtain(); 36 mClassLoader = loader; 37 int size = src.readInt(); 38 if (size < 0) { 39 throw new IllegalArgumentException("Negative size read from parcel"); 40 } 41 42 int pos = src.dataPosition(); 43 src.setDataPosition(MathUtils.addOrThrow(pos, size)); 44 mParcel.appendFrom(src, pos, size); 45 } 46 47 public Parcel getParcel() { 48 mParcel.setDataPosition(0); 49 return mParcel; 50 } 51 52 public ClassLoader getClassLoader() { 53 return mClassLoader; 54 } 55 56 @Override 57 public int describeContents() { 58 return 0; 59 } 60 61 @Override 62 public void writeToParcel(Parcel dest, int flags) { 63 dest.writeInt(mParcel.dataSize()); 64 dest.appendFrom(mParcel, 0, mParcel.dataSize()); 65 } 66 67 public static final Parcelable.ClassLoaderCreator<ParcelableParcel> CREATOR 68 = new Parcelable.ClassLoaderCreator<ParcelableParcel>() { 69 public ParcelableParcel createFromParcel(Parcel in) { 70 return new ParcelableParcel(in, null); 71 } 72 73 public ParcelableParcel createFromParcel(Parcel in, ClassLoader loader) { 74 return new ParcelableParcel(in, loader); 75 } 76 77 public ParcelableParcel[] newArray(int size) { 78 return new ParcelableParcel[size]; 79 } 80 }; 81 } 82
