Android微信自动回复功能

时间：2016-07-15 11:09:16 阅读：697 评论：0 收藏：0 [点我收藏+]

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Android微信自动回复功能

本文原创，转载请经过本人准许。

写在前面：

最近接到老大的一个需求，要求在手机端拦截微信的通知（Notification），从而获得联系人和内容。之后将联系人和内容发送到我们的硬件产品上，展示出来之后，再将我们想回复内容传给微信，并且发送给相应联系人。

老大还提示我需要用AccessibilityService去实现它，当然在此之前我并不知道AccessibilityService是什么鬼，不过没关系， just do IT ！

AccessibilityService

AccessibilityService官方文档（需翻墙）

上面这个链接是AccessibilityService的官方文档，可以翻墙点进去了解下，我再给大家总结一下：

AccessibilityService是Android系统框架提供给安装在设备上应用的一个可选的导航反馈特性。AccessibilityService 可以替代应用与用户交流反馈，比如将文本转化为语音提示，或是用户的手指悬停在屏幕上一个较重要的区域时的触摸反馈等。

如果感觉上面的描述比较抽象，没关系，也许你见过下面这张图：

技术分享

打开你手机的设置–辅助功能中，有很多APP提供的服务，他们都是基于AccessibilityService编写的，AccessibilityService可以侦听你的点击，长按，手势，通知栏的变化等。并且你可以通过很多种方式找到窗体中的EditText，Button等组件，去填充他们，去点击他们来帮你实现自动化的功能。

像360助手的自动安装功能，它就是侦听着系统安装的APP，然后找到“安装”按钮，实现了自动点击。微信自动抢红包功能，实现方式都是如此。

配置AccessibilityService

首先我们在res文件夹下创建xml文件夹，然后创建一个名为auto_reply_service_config的文件，一会我们会在清单文件中引用它。

技术分享

代码：

<accessibility-service            xmlns:android="http://schemas.android.com/apk/res/android"     android:accessibilityEventTypes="typeNotificationStateChanged|typeWindowStateChanged"
    android:accessibilityFeedbackType="feedbackGeneric"
    android:accessibilityFlags="flagDefault"
    android:canRetrieveWindowContent="true"
    android:description="@string/accessibility_description"
    android:notificationTimeout="100"
    android:packageNames="com.tencent.mm" />

这个文件表示我们对AccessibilityService服务未来侦听的行为做了一些配置，比如 typeNotificationStateChanged 和 typeWindowStateChanged 表示我们需要侦听通知栏的状态变化和窗体状态改变。
android:packageNames=”com.tencent.mm” 这是微信的包名，表示我们只关心微信这一个应用。

代码不打算带着大家一行一行看了，如果有不明白的，去看看文档，或者下面回复我，我给大家解答~

创建AccessibilityService

下面贴出AccessibilityService类的全部代码，注释还算详尽，如有疑问，下方回复。

package com.ileja.autoreply;

import android.accessibilityservice.AccessibilityService;
import android.annotation.SuppressLint;
import android.app.ActivityManager;
import android.app.KeyguardManager;
import android.app.Notification;
import android.app.PendingIntent;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.PowerManager;
import android.text.TextUtils;
import android.view.KeyEvent;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;

import java.io.IOException;
import java.util.List;

public class AutoReplyService extends AccessibilityService {
    private final static String MM_PNAME = "com.tencent.mm";
    boolean hasAction = false;
    boolean locked = false;
    boolean background = false;
    private String name;
    private String scontent;
    AccessibilityNodeInfo itemNodeinfo;
    private KeyguardManager.KeyguardLock kl;
    private Handler handler = new Handler();


    /**
     * 必须重写的方法，响应各种事件。
     * @param event
     */
    @Override
    public void onAccessibilityEvent(final AccessibilityEvent event) {
        int eventType = event.getEventType();
        android.util.Log.d("maptrix", "get event = " + eventType);
        switch (eventType) {
            case AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED:// 通知栏事件
                android.util.Log.d("maptrix", "get notification event");
                List<CharSequence> texts = event.getText();
                if (!texts.isEmpty()) {
                    for (CharSequence text : texts) {
                        String content = text.toString();
                        if (!TextUtils.isEmpty(content)) {
                            if (isScreenLocked()) {
                                locked = true;
                                wakeAndUnlock();
                                android.util.Log.d("maptrix", "the screen is locked");
                                if (isAppForeground(MM_PNAME)) {
                                    background = false;
                                    android.util.Log.d("maptrix", "is mm in foreground");
                                    sendNotifacationReply(event);
                                    handler.postDelayed(new Runnable() {
                                        @Override
                                        public void run() {
                                            sendNotifacationReply(event);
                                            if (fill()) {
                                                send();
                                            }
                                        }
                                    }, 1000);
                                } else {
                                    background = true;
                                    android.util.Log.d("maptrix", "is mm in background");
                                    sendNotifacationReply(event);
                                }
                            } else {
                                locked = false;
                                android.util.Log.d("maptrix", "the screen is unlocked");
                                // 监听到微信红包的notification，打开通知
                                if (isAppForeground(MM_PNAME)) {
                                    background = false;
                                    android.util.Log.d("maptrix", "is mm in foreground");
                                    sendNotifacationReply(event);
                                    handler.postDelayed(new Runnable() {
                                        @Override
                                        public void run() {
                                            if (fill()) {
                                                send();
                                            }
                                        }
                                    }, 1000);
                                } else {
                                    background = true;
                                    android.util.Log.d("maptrix", "is mm in background");
                                    sendNotifacationReply(event);
                                }
                            }
                        }
                    }
                }
                break;
            case AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED:
                android.util.Log.d("maptrix", "get type window down event");
                if (!hasAction) break;
                itemNodeinfo = null;
                String className = event.getClassName().toString();
                if (className.equals("com.tencent.mm.ui.LauncherUI")) {
                    if (fill()) {
                        send();
                    }else {
                        if(itemNodeinfo != null){
                            itemNodeinfo.performAction(AccessibilityNodeInfo.ACTION_CLICK);
                            handler.postDelayed(new Runnable() {
                                @Override
                                public void run() {
                                    if (fill()) {
                                        send();
                                    }
                                    back2Home();
                                    release();
                                    hasAction = false;
                                }
                            }, 1000);
                            break;
                        }
                    }
                }

                //bring2Front();
                back2Home();
                release();
                hasAction = false;
                break;
        }
    }

    /**
     * 寻找窗体中的“发送”按钮，并且点击。
     */
    @SuppressLint("NewApi")
    private void send() {
        AccessibilityNodeInfo nodeInfo = getRootInActiveWindow();
        if (nodeInfo != null) {
            List<AccessibilityNodeInfo> list = nodeInfo
                    .findAccessibilityNodeInfosByText("发送");
            if (list != null && list.size() > 0) {
                for (AccessibilityNodeInfo n : list) {
                    n.performAction(AccessibilityNodeInfo.ACTION_CLICK);
                }

            } else {
                List<AccessibilityNodeInfo> liste = nodeInfo
                        .findAccessibilityNodeInfosByText("Send");
                if (liste != null && liste.size() > 0) {
                    for (AccessibilityNodeInfo n : liste) {
                        n.performAction(AccessibilityNodeInfo.ACTION_CLICK);
                    }
                }
            }
            pressBackButton();
        }

    }

    /**
     * 模拟back按键
     */
    private void pressBackButton(){
        Runtime runtime = Runtime.getRuntime();
        try {
            runtime.exec("input keyevent " + KeyEvent.KEYCODE_BACK);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     *
     * @param event
     */
    private void sendNotifacationReply(AccessibilityEvent event) {
        hasAction = true;
        if (event.getParcelableData() != null
                && event.getParcelableData() instanceof Notification) {
            Notification notification = (Notification) event
                    .getParcelableData();
            String content = notification.tickerText.toString();
            String[] cc = content.split(":");
            name = cc[0].trim();
            scontent = cc[1].trim();

            android.util.Log.i("maptrix", "sender name =" + name);
            android.util.Log.i("maptrix", "sender content =" + scontent);


            PendingIntent pendingIntent = notification.contentIntent;
            try {
                pendingIntent.send();
            } catch (PendingIntent.CanceledException e) {
                e.printStackTrace();
            }
        }
    }

    @SuppressLint("NewApi")
    private boolean fill() {
        AccessibilityNodeInfo rootNode = getRootInActiveWindow();
        if (rootNode != null) {
            return findEditText(rootNode, "正在忙,稍后回复你");
        }
        return false;
    }


    private boolean findEditText(AccessibilityNodeInfo rootNode, String content) {
        int count = rootNode.getChildCount();

        android.util.Log.d("maptrix", "root class=" + rootNode.getClassName() + ","+ rootNode.getText()+","+count);
        for (int i = 0; i < count; i++) {
            AccessibilityNodeInfo nodeInfo = rootNode.getChild(i);
            if (nodeInfo == null) {
                android.util.Log.d("maptrix", "nodeinfo = null");
                continue;
            }

            android.util.Log.d("maptrix", "class=" + nodeInfo.getClassName());
            android.util.Log.e("maptrix", "ds=" + nodeInfo.getContentDescription());
            if(nodeInfo.getContentDescription() != null){
                int nindex = nodeInfo.getContentDescription().toString().indexOf(name);
                int cindex = nodeInfo.getContentDescription().toString().indexOf(scontent);
                android.util.Log.e("maptrix", "nindex=" + nindex + " cindex=" +cindex);
                if(nindex != -1){
                    itemNodeinfo = nodeInfo;
                    android.util.Log.i("maptrix", "find node info");
                }
            }
            if ("android.widget.EditText".equals(nodeInfo.getClassName())) {
                android.util.Log.i("maptrix", "==================");
                Bundle arguments = new Bundle();
                arguments.putInt(AccessibilityNodeInfo.ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT,
                        AccessibilityNodeInfo.MOVEMENT_GRANULARITY_WORD);
                arguments.putBoolean(AccessibilityNodeInfo.ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN,
                        true);
                nodeInfo.performAction(AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY,
                        arguments);
                nodeInfo.performAction(AccessibilityNodeInfo.ACTION_FOCUS);
                ClipData clip = ClipData.newPlainText("label", content);
                ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
                clipboardManager.setPrimaryClip(clip);
                nodeInfo.performAction(AccessibilityNodeInfo.ACTION_PASTE);
                return true;
            }

            if (findEditText(nodeInfo, content)) {
                return true;
            }
        }

        return false;
    }

    @Override
    public void onInterrupt() {

    }

    /**
     * 判断指定的应用是否在前台运行
     *
     * @param packageName
     * @return
     */
    private boolean isAppForeground(String packageName) {
        ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        ComponentName cn = am.getRunningTasks(1).get(0).topActivity;
        String currentPackageName = cn.getPackageName();
        if (!TextUtils.isEmpty(currentPackageName) && currentPackageName.equals(packageName)) {
            return true;
        }

        return false;
    }


    /**
     * 将当前应用运行到前台
     */
    private void bring2Front() {
        ActivityManager activtyManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningTaskInfo> runningTaskInfos = activtyManager.getRunningTasks(3);
        for (ActivityManager.RunningTaskInfo runningTaskInfo : runningTaskInfos) {
            if (this.getPackageName().equals(runningTaskInfo.topActivity.getPackageName())) {
                activtyManager.moveTaskToFront(runningTaskInfo.id, ActivityManager.MOVE_TASK_WITH_HOME);
                return;
            }
        }
    }

    /**
     * 回到系统桌面
     */
    private void back2Home() {
        Intent home = new Intent(Intent.ACTION_MAIN);

        home.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        home.addCategory(Intent.CATEGORY_HOME);

        startActivity(home);
    }


    /**
     * 系统是否在锁屏状态
     *
     * @return
     */
    private boolean isScreenLocked() {
        KeyguardManager keyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
        return keyguardManager.inKeyguardRestrictedInputMode();
    }

    private void wakeAndUnlock() {
        //获取电源管理器对象
        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);

        //获取PowerManager.WakeLock对象，后面的参数|表示同时传入两个值，最后的是调试用的Tag
        PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "bright");

        //点亮屏幕
        wl.acquire(1000);

        //得到键盘锁管理器对象
        KeyguardManager km = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
        kl = km.newKeyguardLock("unLock");

        //解锁
        kl.disableKeyguard();

    }

    private void release() {

        if (locked && kl != null) {
            android.util.Log.d("maptrix", "release the lock");
            //得到键盘锁管理器对象
            kl.reenableKeyguard();
            locked = false;
        }
    }
}

接着配置清单文件，权限和service的配置比较重要。

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.ileja.autoreply">

    <uses-permission android:name="android.permission.DISABLE_KEYGUARD" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.BIND_ACCESSIBILITY_SERVICE" />
    <uses-permission android:name="android.permission.GET_TASKS" />
    <uses-permission android:name="android.permission.REORDER_TASKS" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <service
            android:name=".AutoReplyService"
            android:enabled="true"
            android:exported="true"
            android:label="@string/app_name"
            android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE">
            <intent-filter>
                <action android:name="android.accessibilityservice.AccessibilityService"/>
            </intent-filter>

            <meta-data
                android:name="android.accessibilityservice"
                android:resource="@xml/auto_reply_service_config"/>
        </service>
    </application>
</manifest>