03234501c9
It's possible to add post-init tasks to InitController despite the fact that it only runts the tasks in one batch. Make it throw an exception if that ever happens. Test: atest InitControllerTest Change-Id: I6c17add37eb10bdb027516db0c5d57463d3bc76c
54 lines
1.6 KiB
Java
54 lines
1.6 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.systemui;
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import java.util.ArrayList;
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/**
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* Created by {@link Dependency} on SystemUI startup. Add tasks which need to be executed only
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* after all other dependencies have been created.
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*/
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public class InitController {
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/**
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* If a task is added after all tasks are executed, then we've done something terribly wrong
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*/
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private boolean mTasksExecuted = false;
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private final ArrayList<Runnable> mTasks = new ArrayList<>();
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/**
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* Add a task to be executed after {@link Dependency#start()}
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* @param runnable the task to be executed
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*/
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public void addPostInitTask(Runnable runnable) {
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if (mTasksExecuted) {
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throw new IllegalStateException("post init tasks have already been executed!");
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}
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mTasks.add(runnable);
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}
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/**
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* Run post-init tasks and remove them from the tasks list
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*/
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public void executePostInitTasks() {
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while (!mTasks.isEmpty()) {
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mTasks.remove(0).run();
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}
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mTasksExecuted = true;
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}
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}
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