1 package com.android.launcher3.util; 2 3 /** 4 * Copyright (C) 2015 The Android Open Source Project 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 import android.content.ComponentName; 20 import android.os.UserHandle; 21 22 import java.util.Arrays; 23 24 public class ComponentKey { 25 26 public final ComponentName componentName; 27 public final UserHandle user; 28 29 private final int mHashCode; 30 ComponentKey(ComponentName componentName, UserHandle user)31 public ComponentKey(ComponentName componentName, UserHandle user) { 32 Preconditions.assertNotNull(componentName); 33 Preconditions.assertNotNull(user); 34 this.componentName = componentName; 35 this.user = user; 36 mHashCode = Arrays.hashCode(new Object[] {componentName, user}); 37 38 } 39 40 @Override hashCode()41 public int hashCode() { 42 return mHashCode; 43 } 44 45 @Override equals(Object o)46 public boolean equals(Object o) { 47 ComponentKey other = (ComponentKey) o; 48 return other.componentName.equals(componentName) && other.user.equals(user); 49 } 50 51 /** 52 * Encodes a component key as a string of the form [flattenedComponentString#userId]. 53 */ 54 @Override toString()55 public String toString() { 56 return componentName.flattenToString() + "#" + user; 57 } 58 }