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We also recommend that a * file or class name and description of purpose be included on the * same "printed page" as the copyright notice for easier * identification within third-party archives. * * Copyright 2016 Alibaba Group * * 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.taobao.weex.common; import android.os.Handler; import android.os.Handler.Callback; import android.os.HandlerThread; import android.os.Message; import com.taobao.weex.WXEnvironment; import com.taobao.weex.utils.WXLogUtils; /** * Thread used in weex */ public class WXThread extends HandlerThread { private Handler mHandler; static class SafeRunnable implements Runnable { static final String TAG = "SafeRunnable"; final Runnable mTask; SafeRunnable(Runnable task){ mTask = task; } @Override public void run() { try { if(mTask != null) mTask.run(); }catch (Throwable e){ //catch everything may throw from exection. if(WXEnvironment.isApkDebugable()){ WXLogUtils.e(TAG,"SafeRunnable run throw expection:"+e.getMessage()); throw e; } } } } static class SafeCallback implements Callback { static final String TAG = "SafeCallback"; final Callback mCallback; SafeCallback(Callback cb){ mCallback = cb; } @Override public boolean handleMessage(Message msg) { boolean result = false; try{ if(mCallback != null){ result = mCallback.handleMessage(msg); } }catch (Throwable e){ //catch everything may throw from exection. if(WXEnvironment.isApkDebugable()){ WXLogUtils.e(TAG,"SafeCallback handleMessage throw expection:"+e.getMessage()); throw e; } } return result; } } /** * Secure Runnable to prevent throw during execution. * @param runnable * @return */ public static Runnable secure(Runnable runnable){ if(runnable == null || runnable instanceof SafeRunnable){ return runnable; } return new SafeRunnable(runnable); } public static Callback secure(Callback callback){ if(callback == null || callback instanceof SafeCallback){ return callback; } return new SafeCallback(callback); } /** * @param name name of thread */ public WXThread(String name) { super(name); start(); mHandler = new Handler(getLooper()); } public WXThread(String name, Callback callback) { super(name); start(); mHandler = new Handler(getLooper(), secure(callback)); } /** * @param name name of thread * @param priority The priority to run the thread at. The value supplied must be from * {@link android.os.Process} and not from java.lang.Thread. */ public WXThread(String name, int priority, Callback callback) { super(name, priority); start(); mHandler = new Handler(getLooper(), secure(callback)); } /** * @param name name of thread * @param priority The priority to run the thread at. The value supplied must be from * {@link android.os.Process} and not from java.lang.Thread. */ public WXThread(String name, int priority) { super(name, priority); start(); mHandler = new Handler(getLooper()); } public Handler getHandler() { return mHandler; } public boolean isWXThreadAlive() { return (mHandler != null && getLooper() != null && isAlive()); } @Override public boolean quit() { if (mHandler != null) { mHandler.removeCallbacksAndMessages(null); } return super.quit(); } }