简单实现了微信自动抢红包的服务，原理就是根据关键字找到相应的View, 然后自动点击。主要是用到AccessibilityService这个辅助服务，基本可以满足自动抢红包的功能，但是有些逻辑需要优化，比如，拆完一个红包后，必须手动点击返回键，才能进行下一次自动抢红包。
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://www.easck.com/apk/res/android" package="com.jackie.webchatenvelope" > <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <service android:enabled="true" android:exported="true" android:label="@string/app_name" android:name=".EnvelopeService" 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/envelope_service_config"/> </service> </application> </manifest>
envelope_service_config.xml
<?xml version="1.0" encoding="utf-8"?> <accessibility-service xmlns:android="http://www.easck.com/apk/res/android" android:accessibilityEventTypes="typeNotificationStateChanged|typeWindowStateChanged" android:accessibilityFeedbackType="feedbackGeneric" android:accessibilityFlags="" android:canRetrieveWindowContent="true" android:description="@string/accessibility_description" android:notificationTimeout="100" android:packageNames="com.tencent.mm" />
