Android Open Source - WiFiKeyView Long Press Network Clicked Hook

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License

The source code is released under:

Apache License

Java Source Code

package com.whd.wifikeyview.hooks;
// www .j av a  2s .  co m
import android.app.Fragment;
import android.net.wifi.WifiConfiguration;
import android.preference.Preference;
import android.view.MenuItem;
import android.view.View;
import android.widget.ListView;
import android.widget.AdapterView.AdapterContextMenuInfo;

import com.whd.wifikeyview.ShowPassword;
import com.whd.wifikeyview.WiFiKeyView;
import com.whd.wifikeyview.network.NetworkParseTask;

import de.robv.android.xposed.XC_MethodHook;
import de.robv.android.xposed.XposedHelpers;
import de.robv.android.xposed.XposedHelpers.ClassNotFoundError;

public class LongPressNetworkClickedHook extends XC_MethodHook {
  
  // Context menu id's
  private static int MENU_ID_SHOWPASSWORD = 999;
  
  // Keep an reference to AccessPoint for faster reference, and no unnecessary reflection
  private static Class<?> accessPointClass;
  
  @Override
  public void beforeHookedMethod(MethodHookParam param) throws Exception {
    // Do we need to do anything before everything is created?
  }
  
  @Override
  public void afterHookedMethod(MethodHookParam param) {
    MenuItem menuItem = (MenuItem) param.args[0];

    // We only want to do something on our own menu item
    if ( menuItem.getItemId() == MENU_ID_SHOWPASSWORD) {
      
      // Output the class of the object
      if (WiFiKeyView.isDebugging()) {
        Object   objectWifiSettings = param.thisObject;
        Class<?> classWifiSettings  = objectWifiSettings.getClass();
        while (classWifiSettings.getSuperclass() != null) {
          WiFiKeyView.log("WiFiSettings subclass: " + classWifiSettings.getCanonicalName());
          classWifiSettings = classWifiSettings.getSuperclass();
        }
      }
      
      // The selected position in the network list
      int selectedListPosition = ((AdapterContextMenuInfo) menuItem.getMenuInfo()).position; 
      
      if (!(param.thisObject instanceof Fragment)) {
        throw new RuntimeException("param.thisObject is not an instance of Fragment");
      }
      
      // Get an reference to the preference fragment
      Fragment wifiFragment = ((Fragment)param.thisObject);
      
      // Search the ListView
      View rawListView = wifiFragment.getView().findViewById(android.R.id.list);
      
      // Be sure it is an ListView, and not something else using id 'android.R.id.list'
      if (!(rawListView instanceof ListView)) {
        throw new RuntimeException("Content has view with id attribute 'android.R.id.list' that is not a ListView class");
      }
      
      // Cast the View to an ListView
      ListView mList = (ListView) rawListView;
      
      // Get the selected ListView item through the adapter
      Object object = mList.getAdapter().getItem(selectedListPosition);
      if (WiFiKeyView.isDebugging()) {
        Class<?> classObject = object.getClass();
        while (classObject.getSuperclass() != null) {
          WiFiKeyView.log("ListView item subclass: " + classObject.getCanonicalName());
          classObject = classObject.getSuperclass();
        }
      }
      
      String ssid = "";
      // The object can be of the following types
      if (object instanceof Preference) {
        Preference pref = (Preference) object;
      
        // Get the ssid (title) of the preference
        ssid = pref.getTitle().toString();
      } else if ( (getAccessPointClass(param) != null) && getAccessPointClass(param).isInstance(object)) {
        // Call getConfig via reflection
        Object result = XposedHelpers.callMethod(object, "getConfig");
        
        if (result != null) {
          if (result instanceof WifiConfiguration) {
            WifiConfiguration config = (WifiConfiguration) result;
            ssid = config.SSID;
          } else {
            WiFiKeyView.log("Result from reflection call object.getConfig() is null!");
          }
        } else {
          WiFiKeyView.log("Reflection call object.getConfig() failed!");
        }
      }
      
      // When debugging, show we clicked the item, and the ssid
      if (WiFiKeyView.isDebugging()) {
        WiFiKeyView.log("MENU_ID_SHOWPASSWORD clicked!! SSID: " + ssid);
      }
      
      // Execute the task with given ssid, and return to ShowPasswordDialog
      new NetworkParseTask(new ShowPassword(wifiFragment.getActivity())).execute(ssid);
      
      // Set result to true
      param.setResult(true);
    }
  }
  
  private Class<?> getAccessPointClass(MethodHookParam param) {
    // If we already searched before, directly return
    if (accessPointClass == null) {
      // Try to load the class AccessPoint
      try {
        // If the class is not found, an error is thrown
        accessPointClass = XposedHelpers.findClass("AccessPoint", null);
      
        if (WiFiKeyView.isDebugging()) {
          WiFiKeyView.log("AccessPoint class was found");
        }
      } catch (ClassNotFoundError cnfe) {
        // Do not do anything, we will not use it if the reference is null
        if (WiFiKeyView.isDebugging()) {
          WiFiKeyView.log("AccessPoint class was not found");
        }
      }
    }
    
    return accessPointClass;
  }
  
}

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