Android实现屏蔽微信拉黑和删除联系人功能示例

package com.cxk.wechatdeletefail;

import android.accessibilityservice.AccessibilityService;
import android.content.Intent;
import android.text.TextUtils;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.Toast;

/**
 * Created by cxk on 2017/2/9.
 * 屏蔽微信"删除联系人"和"拉黑"功能
 */

public class DeleteFailService extends AccessibilityService {

  /**
   * 判断是不是删除联系人弹框
   */
  private boolean isDeleteDialog;
  /**
   * 判断是不是拉黑联系人弹框
   */
  private boolean isDefriendDialog;

  @Override
  public void onAccessibilityEvent(AccessibilityEvent event) {
    int eventType = event.getEventType();
    switch (eventType) {
      //进入聊天页面会触发该事件
      case AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED:
        //获取当前聊天页面根布局
        AccessibilityNodeInfo rootNode = getRootInActiveWindow();
        //屏蔽微信"删除联系人"和"拉黑"功能
        DeleteFail(rootNode);
        break;

    }

  }

  /**
   * 遍历所有控件，判断是不是删除联系人界面或者拉黑界面，如果是则模拟点击"取消"，让它消失。
   *
   * @param rootNode
   */
  private void DeleteFail(AccessibilityNodeInfo rootNode) {
    if(rootNode!=null){
      for (int i = 0; i