| /* |
| * Copyright (C) 2021 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.launcher3.util; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * Utility class to hold a list of runnable |
| */ |
| public class RunnableList { |
| |
| private ArrayList<Runnable> mList = null; |
| private boolean mDestroyed = false; |
| |
| /** |
| * Ads a runnable to this list |
| */ |
| public void add(Runnable runnable) { |
| if (runnable == null) { |
| return; |
| } |
| if (mDestroyed) { |
| runnable.run(); |
| return; |
| } |
| if (mList == null) { |
| mList = new ArrayList<>(); |
| } |
| mList.add(runnable); |
| } |
| |
| /** |
| * Destroys the list, executing any pending callbacks. All new callbacks are |
| * immediately executed |
| */ |
| public void executeAllAndDestroy() { |
| mDestroyed = true; |
| executeAllAndClear(); |
| } |
| |
| /** |
| * Executes all previously added runnable and clears the list |
| */ |
| public void executeAllAndClear() { |
| if (mList != null) { |
| ArrayList<Runnable> list = mList; |
| mList = null; |
| int count = list.size(); |
| for (int i = 0; i < count; i++) { |
| list.get(i).run(); |
| } |
| } |
| } |
| } |