Android微信自动回复功能
AntCTVG
8年前
<h2><strong>写在前面</strong></h2> <p>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。</p> <p>老大还提示我需要用<strong>AccessibilityService</strong>去实现它，当然在此之前我并不知道<strong>AccessibilityService</strong>是什么鬼，不过没关系， <strong>just do IT</strong> ！</p> <h2>AccessibilityService</h2> <p><a href="/misc/goto?guid=4959675371626467387">AccessibilityService官方文档（需KX上网）</a></p> <p>上面这个链接是AccessibilityService的官方文档，可以KX上网点进去了解下，我再给大家总结一下：</p> <p>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。</p> <p>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：</p> <p style="text-align:center"><img src="https://simg.open-open.com/show/e481bb5f61fe20232b21271997cdb1a7.png"></p> <p style="text-align:center">辅助功能中的服务</p> <p>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。</p> <p>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。</p> <h2>配置AccessibilityService</h2> <p>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。</p> <p style="text-align:center"><img src="https://simg.open-open.com/show/9ed7620652acc71aa65713dcb616b1ee.png"></p> <p style="text-align:center">AccessibilityService配置文件</p> <p><strong>代码：</strong></p> <pre> <code class="language-java"><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" /></code></pre> <p>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 <strong>typeNotificationStateChanged</strong> 和 <strong>typeWindowStateChanged</strong> 表示我们需要侦听通知栏的状态变化和窗体状态改变。<br> 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。</p> <p>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~</p> <h2>创建AccessibilityService</h2> <p>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。</p> <pre> <code class="language-java">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) { if(n.getClassName().equals("android.widget.Button") && n.isEnabled()) { n.performAction(AccessibilityNodeInfo.ACTION_CLICK);} } } else { List<AccessibilityNodeInfo> liste = nodeInfo .findAccessibilityNodeInfosByText("Send"); if (liste != null && liste.size() > 0) { for (AccessibilityNodeInfo n : liste) { if(n.getClassName().equals("android.widget.Button") && n.isEnabled()) { 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; } } }</code></pre> <p>接着配置清单文件，权限和service的配置比较重要。</p> <pre> <code class="language-xml"><?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></code></pre> <p>为了使用某些必要的API，最低API level应该是18</p> <p>运行程序，打开服务，看看效果如何把~</p> <p style="text-align:center"><img src="https://simg.open-open.com/show/6683c6f185e45abd4a1d7dd7a1f7796a.png"></p> <p style="text-align:center">打开辅助服务</p> <p>接着用其他手机试着发送给我几条微信</p> <p style="text-align:center"><img src="https://simg.open-open.com/show/a85446f4fdc1763966b051da8e9d3695.png"></p> <p style="text-align:center">自动回复微信</p> <p>可以看到，自动回复功能就实现了。</p> <h2><strong>写在后面</strong></h2> <p>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。</p> <p>关于<strong>AccessibilityService</strong>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。</p> <p><br> <a href="/misc/goto?guid=4959675371720738717">阅读原文</a></p>