/* * Copyright 2014, 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.server.telecom; import android.os.Looper; /** * Helper methods to deal with threading related tasks. */ public final class ThreadUtil { private static final String TAG = ThreadUtil.class.getSimpleName(); private ThreadUtil() {} /** @return whether this method is being called from the main (UI) thread. */ public static boolean isOnMainThread() { return Looper.getMainLooper() == Looper.myLooper(); } /** * Checks that this is being executed on the main thread. If not, a message is logged at * WTF-level priority. */ public static void checkOnMainThread() { if (!isOnMainThread()) { Log.wtf(TAG, new IllegalStateException(), "Must be on the main thread!"); } } /** * Checks that this is not being executed on the main thread. If so, a message is logged at * WTF-level priority. */ public static void checkNotOnMainThread() { if (isOnMainThread()) { Log.wtf(TAG, new IllegalStateException(), "Must not be on the main thread!"); } } }