1 /* 2 * Copyright (C) 2019 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 com.android.launcher3.util; 17 18 import android.os.Binder; 19 import android.os.IBinder; 20 21 /** 22 * Utility class to pass non-parcealable objects within same process using parcealable payload. 23 * 24 * It wraps the object in a binder as binders are singleton within a process 25 */ 26 public class ObjectWrapper<T> extends Binder { 27 28 private T mObject; 29 ObjectWrapper(T object)30 public ObjectWrapper(T object) { 31 mObject = object; 32 } 33 get()34 public T get() { 35 return mObject; 36 } 37 clear()38 public void clear() { 39 mObject = null; 40 } 41 wrap(Object obj)42 public static IBinder wrap(Object obj) { 43 return new ObjectWrapper<>(obj); 44 } 45 unwrap(IBinder binder)46 public static <T> T unwrap(IBinder binder) { 47 if (binder instanceof ObjectWrapper) { 48 return ((ObjectWrapper<T>) binder).get(); 49 } 50 return null; 51 } 52 } 53