Android通过AccessibilityService实现微信自动回复功能

发布于 2019-09-26 作者 风铃 90次 浏览 版块 前端

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:




辅助功能中的服务


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。




AccessibilityService配置文件


代码:




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
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 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 list = nodeInfo
.findAccessibilityNodeInfosByText(“发送”);
if (list != null && list.size() > 0) {
for (AccessibilityNodeInfo n : list) {
n.performAction(AccessibilityNodeInfo.ACTION_CLICK);
}
} else {
List 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 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>

为了使用某些必要的API,最低API level应该是18


运行程序,打开服务,看看效果如何把~




打开辅助服务


接着用其他手机试着发送给我几条微信




自动回复微信


可以看到,自动回复功能就实现了。


写在后面:


代码没有给大家详细讲解,不过看注释应该可以看懂个大概。当微信程序切换到后台,或者锁屏(无锁屏密码)时,只要有通知出现,都可以实现自动回复。


关于AccessibilityService可以监控的行为非常多,所以我觉得可以实现各种各样炫酷的功能,不过我并不建议你打开某些流氓软件的AccessibilityService服务,因为很有可能造成一些安全问题,所以,自己动手写就安全多了嘛。


github项目地址:
WcAutoReply




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