SmsHook/app/src/main/java/com/example/smshook/MainActivity.java

package com.example.smshook;

import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import com.example.RcsHackTool;

public class MainActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
            return insets;
        });

        EditText etSender = findViewById(R.id.et_sender);
        EditText etMessage = findViewById(R.id.et_message);
        Button btnSave = findViewById(R.id.btn_save);

        SharedPreferences pref = getSharedPreferences("sms_conf", Context.MODE_PRIVATE);
        etSender.setText(pref.getString("sender", ""));
        etMessage.setText(pref.getString("message", ""));
        btnSave.setOnClickListener(v -> {
            SharedPreferences.Editor editor = pref.edit();
            editor.putString("sender", etSender.getText().toString());
            editor.putString("message", etMessage.getText().toString());
            editor.apply();
            Toast.makeText(this, "Sent", Toast.LENGTH_SHORT).show();

            sendGetRequest("http://127.0.0.1:9898/?sender=" + etSender.getText().toString() + "&message=" + etMessage.getText().toString());
        });

        RcsHackTool.createSmsIntent(this, "10086", "Hello, world!");

    }

    public void sendGetRequest(String url) {
        RequestQueue queue = Volley.newRequestQueue(this);

        StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
                response -> {
                    Toast.makeText(this, "Response is: " + response, Toast.LENGTH_SHORT).show();
                }, error -> {

            Toast.makeText(this, "That didn't work!", Toast.LENGTH_SHORT).show();
        });

        queue.add(stringRequest);
    }

}