使用AccessibilityService实现微信自动抢红包
分类：android
微信红包
performAction(AccessibilityNodeInfo.ACTION_CLICK)实现点击，不过在操作之前先判断一下isCheckable()如果是false则无法实现其功能
（2）使用AccessibilityService的performGlobalAction的方法，介绍如下：/*** Performs a global action. Such an action can be performed* at any moment regardless of the current application or user* location in that application. For example going back, going* home, opening recents, etc.** @param action The action to perform.* @return Whether the action was successfully performed.** @see #GLOBAL_ACTION_BACK* @see #GLOBAL_ACTION_HOME* @see #GLOBAL_ACTION_NOTIFICATIONS* @see #GLOBAL_ACTION_RECENTS*/public final boolean performGlobalAction(int action) {IAccessibilityServiceConnection connection =AccessibilityInteractionClient.getInstance().getConnection(mConnectionId);if (connection != null) {try {return connection.performGlobalAction(action);} catch (RemoteException re) {Log.w(LOG_TAG, "Error while calling performGlobalAction", re);}}return false;}所以要实现返回功能只需要调用performGlobalAction(AccessibilityService.GLOBAL_ACTION_BACK);，当然如果想实现Home，，通知，最近的应用换成对应的action就可以了3、涉及微信界面的类 /*** 微信的包名*/static final String WECHAT_PACKAGENAME = "com.tencent.mm";/*** 拆红包类*/static final String WECHAT_RECEIVER_CALSS = "com.tencent.mm.plugin.luckymoney.ui.LuckyMoneyReceiveUI";/*** 红包详情类*/static final String WECHAT_DETAIL = "com.tencent.mm.plugin.luckymoney.ui.LuckyMoneyDetailUI";/*** 微信主界面或者是聊天界面*/static final String WECHAT_LAUNCHER = "com.tencent.mm.ui.LauncherUI";这里需要注意的是WECHAT_LAUNCHER，微信主界面以及聊天界面应该采用的FragmentActivity+Fragment这样导致如果用户进入到微信主界面则会调用AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED，导致再次进入微信聊天界面不会再调用AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED，而会调用AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED，而AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED只要内容改变后都会调用，所以一般是使用4、增加红包获取量避免重复金额在聊天界面的红包虽然会有"领取红包"的字样，但是其实是已经拆过的，判断的标识就是是否有"拆红包"，如果有拆红包则计算对应详情中的金额。5、如何循环查询所有的子控件/*** @param info 当前节点* @param matchFlag 需要匹配的文字* @param type 操作的类型*/public void recycle(AccessibilityNodeInfo info, String matchFlag, int type) {if (info != null) {if (info.getChildCount() == 0) {CharSequence desrc = info.getContentDescription();switch (type) {case ENVELOPE_RETURN://返回if (desrc != null && matchFlag.equals(info.getContentDescription().toString().trim())) {if (info.isCheckable()) {info.performAction(AccessibilityNodeInfo.ACTION_CLICK);} else {performGlobalAction(AccessibilityService.GLOBAL_ACTION_BACK);}}break;}} else {int size = info.getChildCount();for (int i = 0; i < size; i++) {AccessibilityNodeInfo childInfo = info.getChild(i);if (childInfo != null) {Log.e(TAG, "index: " + i + " info" + childInfo.getClassName() + " : " + childInfo.getContentDescription()+" : "+info.getText());recycle(childInfo, matchFlag, type);}}}}}网上关于抢红包的源码比较多，由于其他原因我们这里的不会公布，可以根据网上的源码进行修改，能够实现功能：（2）进入群聊界面会自动查询当前界面所有"领取红包"，然后循环点击查找增加红包的概率（3）准确的保存领取的红包金额和日期
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即使爬到最高的山上，一次也只能脚踏实地地迈一步。
