| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.weex.base; |
| |
| import android.os.Handler; |
| import android.os.Message; |
| import android.util.Log; |
| |
| import java.io.Serializable; |
| import java.lang.reflect.Method; |
| |
| |
| public class SystemMessageHandler extends Handler implements Serializable { |
| |
| private static final String TAG = "SystemMessageHandler"; |
| |
| private static final int SCHEDULED_WORK = 1; |
| |
| private long mMessagePumpDelegateNative = 0; |
| |
| private Method mMessageMethodSetAsynchronous; |
| |
| private native void nativeRunWork(long delegateNative); |
| |
| private SystemMessageHandler(long messagePumpDelegateNative) { |
| this.mMessagePumpDelegateNative = messagePumpDelegateNative; |
| try { |
| Class<?> messageClass = Class.forName("android.os.Message"); |
| mMessageMethodSetAsynchronous = messageClass.getMethod( |
| "setAsynchronous", new Class[]{boolean.class}); |
| } catch (ClassNotFoundException e) { |
| Log.e(TAG, "Failed to find android.os.Message class:" + e); |
| } catch (NoSuchMethodException e) { |
| Log.e(TAG, "Failed to load Message.setAsynchronous method:" + e); |
| } catch (RuntimeException e) { |
| Log.e(TAG, "Exception while loading Message.setAsynchronous method: " + e); |
| } |
| } |
| |
| @CalledByNative |
| public static SystemMessageHandler create(long messagePumpDelegateNative) { |
| return new SystemMessageHandler(messagePumpDelegateNative); |
| } |
| |
| @CalledByNative |
| private void scheduleWork() { |
| sendMessage(obtainAsyncMessage(SCHEDULED_WORK)); |
| } |
| |
| @CalledByNative |
| private void scheduleDelayedWork(long delayMillis) { |
| sendMessageDelayed(obtainAsyncMessage(SCHEDULED_WORK), delayMillis); |
| } |
| |
| @CalledByNative |
| private void stop() { |
| removeMessages(SCHEDULED_WORK); |
| } |
| |
| private Message obtainAsyncMessage(int what) { |
| Message msg = Message.obtain(); |
| msg.what = what; |
| // if (mMessageMethodSetAsynchronous != null) { |
| // // If invocation fails, assume this is indicative of future |
| // // failures, and avoid log spam by nulling the reflected method. |
| // try { |
| // mMessageMethodSetAsynchronous.invoke(msg, true); |
| // } catch (IllegalAccessException e) { |
| // Log.e(TAG, "Illegal access to asynchronous message creation, disabling."); |
| // mMessageMethodSetAsynchronous = null; |
| // } catch (IllegalArgumentException e) { |
| // Log.e(TAG, "Illegal argument for asynchronous message creation, disabling."); |
| // mMessageMethodSetAsynchronous = null; |
| // } catch (InvocationTargetException e) { |
| // Log.e(TAG, "Invocation exception during asynchronous message creation, disabling."); |
| // mMessageMethodSetAsynchronous = null; |
| // } catch (RuntimeException e) { |
| // Log.e(TAG, "Runtime exception during asynchronous message creation, disabling."); |
| // mMessageMethodSetAsynchronous = null; |
| // } |
| // } |
| return msg; |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| nativeRunWork(mMessagePumpDelegateNative); |
| } |
| } |