Simple Android App Networking Request

package ca.netfilter; // Define package name as ca.netfilter
import android.os.Bundle; // Import Android Bundle class for data passing
import androidx.fragment.app.Fragment; // Import Fragment class for creating UI fragments
import android.text.InputType;
import android.util.Log;
import android.view.LayoutInflater; // Import layout inflater class
import android.view.View; // Import view class
import android.view.ViewGroup; // Import view container class
import android.widget.Button;


import android.widget.CompoundButton;
import android.widget.TextView;

import com.google.android.material.textfield.TextInputEditText;
import com.google.android.material.textfield.TextInputLayout;
import com.yoloho.libcore.util.Crypt;


/**
 * A simple {@link Fragment} subclass.
 * Use the {@link Fn1Fragment#newInstance} factory method to
 * create an instance of this fragment.
 *
 * A simple {@link Fragment} subclass.
 * Use the {@link Fn1Fragment#newInstance} factory method to
 * create an instance of this fragment.
 */

//public class Fn1Fragment extends androidx.fragment.app.Fragment {
//}
public class Fn1Fragment extends Fragment {   // Define a Fragment subclass named BlankFragment

    private static final String TAG = "Fn1Fragment"; // ✅ Add TAG

    static {
        System.loadLibrary("netfilter");
    }


    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    // TODO: Rename parameter names to match initialization parameters, e.g. ARG_ITEM_NUMBER


    // Variables are declared at the head and type.  you can use them Alone!
    public Button fn1Button,fn2Button,fn3Button,run1Button,run2Button,run3Button;
    public TextView txtUser,txtPwd;
    public TextInputEditText passwordEditText;
    public TextInputLayout passwordTextInputLayout;



    private static final String ARG_PARAM1 = "param1";   // Define key name for parameter 1
    private static final String ARG_PARAM2 = "param2";    // Define key name for parameter 2

    // TODO: Rename and change types of parameters  ---> Rename and change parameter types
    private String mParam1; // Used to save the value of param1
    private String mParam2;  // Used to save the value of param2

    public Fn1Fragment() {
        // Required empty public constructor  --> Required empty public constructor
    }

    /**
     * Use this factory method to create a new instance of  .--> Use this factory method to create a new instance of BlankFragment,
     * this fragment using the provided parameters. .--> and pass two parameters.
     *
     * @param param1 Parameter 1.--> param1 Parameter 1
     * @param param2 Parameter 2. -->param2 Parameter 2
     * @return A new instance of fragment BlankFragment.--> Return a new instance of BlankFragment
     */
    // TODO: Rename and change types and number of parameters -->Rename and modify parameter types and count
    public static Fn1Fragment newInstance(String param1, String param2) {
        Fn1Fragment fragment = new Fn1Fragment();// Create a new BlankFragment instance
        Bundle args = new Bundle(); // Create a new Bundle for passing parameters
        args.putString(ARG_PARAM1, param1);  // Put param1 into Bundle
        args.putString(ARG_PARAM2, param2); // Put param2 into Bundle
        fragment.setArguments(args);  // Set parameters to fragment
        return fragment; // Return the created fragment instance
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);  // Call parent class's onCreate method
        if (getArguments() != null) {  // If there are passed parameters
            mParam1 = getArguments().getString(ARG_PARAM1); // Get param1 and assign to mParam1
            mParam2 = getArguments().getString(ARG_PARAM2); // Get param2 and assign to mParam2
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment -->  Load layout file fragment_fn1.xml for this fragment
//        return inflater.inflate(R.layout.fragment_fn1, container, false);
        View rootView = inflater.inflate(R.layout.fragment_fn1, container, false);
        initView(rootView);  // Pass rootView
        initListener(); // ✅ Add click event binding
        return rootView;
    }


    public void initView(View rootView){
        // find the page useful tag
        // Set button binding events.
        txtUser = rootView.findViewById(R.id.editTextUsername);
        txtPwd = rootView.findViewById(R.id.passwordEditTextFn1);
        fn1Button = rootView.findViewById(R.id.buttonFn1);
        run1Button = rootView.findViewById(R.id.buttonRun1);
        fn2Button = rootView.findViewById(R.id.buttonFn2);
        run2Button = rootView.findViewById(R.id.buttonRun2);
        fn3Button = rootView.findViewById(R.id.buttonFn3);
        run3Button = rootView.findViewById(R.id.buttonRun3);
        passwordEditText = rootView.findViewById(R.id.passwordEditTextFn1);
        passwordTextInputLayout = rootView.findViewById(R.id.passwordTextInputLayout);

    }

    public void initListener(){
        run1Button.setOnClickListener(new View.OnClickListener() {  // First type: full form
            @Override
            public void onClick(View v){
                jniCall_static();
            }
        });
        fn2Button.setOnClickListener(v -> clang_Call_Java_v8());  // Second type: abbreviated form
        fn3Button.setOnClickListener(v -> clang_Call_Java_v9());
        run2Button.setOnClickListener(v -> jNI_Dynamic_Register());
        run3Button.setOnClickListener(v -> Call_Encrypted_Result());

    }


    public void Call_Encrypted_Result(){
        //Send network + connect queue, get task

//        String Plaintext = String.valueOf(txtUser.getText());
////        String Ciphertext = String.valueOf(txtPwd.getText());
//
//        //Call method and get corresponding result
//        String sign = Crypt.encrypt_data(0, Plaintext, 85);
//
//
//        passwordEditText.setText(sign);
//
//        // Send + write result
        String Plaintext = txtUser.getText().toString();
        String Ciphertext = txtPwd.getText().toString();

        // Call method and get corresponding result
        String sign = Crypt.encrypt_data(0, Plaintext, 85);

        // Display encryption result in passwordEditText
        passwordEditText.setText(sign);

    }

    public void jNI_Dynamic_Register(){
//        DynamicUtils utils = new DynamicUtils();
        int result = DynamicUtils.add(5, 7);
        System.out.println("jNI_Dynamic_Register ---> Result: " + result); // Output: Result: 12
//        String value = DynamicUtils.ssss(11,22);
//        Log.e("---->", value); //  rwxt

    }

    public void clang_Call_Java_v9(){
        String resultn9 = clangCallJavaNew.v9("October 2024",2024);
        System.out.println("Instance method---C calls Java---->Result: " + resultn9);




        // -----------------Call native method ------------- kanxue MissKing's ROM JNI tracing function test-----------
        // Create JniTraceMikrom instance and call lookForDemo method
        JniTraceMikrom jniTrace = new JniTraceMikrom();
        String result = jniTrace.lookForDemo();

        // Print return value of lookForDemo method
        Log.i(TAG, "Jni-Trace-Mikrom--case---->Result: " + result);

        // -----------------Call native method ------------- kanxue MissKing's ROM JNI tracing function test-----------------




        clangCallJavaNewExampleEncrypted resultv10 = EncryptUtils.v10("aid=123488384&page=199&size=100");
        if (resultv10 != null) {
            String resultv10_string = resultv10.toString();
            Log.e("---->", resultv10_string);
        } else {
            Log.e("---->", "Error: resultv10 is null.");
        }
    }
    public void clang_Call_Java_v8(){
        // Static method  (C calls Java)
        String resultn8 = clangCallJavaStatic.v8();
//        System.out.println(clangCallJavaStatic.v8());
        System.out.println("Static method---C calls Java---->Result: " + resultn8);
    }
    public void jniCall_static(){
        // 5.5 Character processing
//        String resultn5 = EncryptUtils.v5("name=wupeiqi&age=19");
        EncryptUtils.v5("name=wupeiqi&age=19");
//        System.out.println("5.5 Character processing--> Result: " + resultn5);
        // 5.6 Byte processing
//        String resultn6 = EncryptUtils.v6(   "name=wupeiqi&age=19".getBytes()    );
        EncryptUtils.v6(   "name=wupeiqi&age=19".getBytes()    );
//        System.out.println("5.6 Byte processing--> Result: " + resultn6);

        EncryptUtils.v7(   "name=wupeiqi&age=19".getBytes()    );
    }

    public void jniCall(){

        // JNI C (native variable already declared in Java's EncryptUtils class)
        // Call core algorithm, get signature value, send to backend API.
        String signString = EncryptUtils.v0(11, "alex");
        // More awesome algorithm, let it be implemented in C language.
        int sign1 = EncryptUtils.v1(2, 3);
        Log.e("Fn1--》Test Java calls C V1 function---->", String.valueOf(sign1)); //  133

        // Java calls JNI C language --V2 function
        String sign2 = EncryptUtils.v2("root");
        Log.e("Fn1--》Test calling Native V2 function----->",sign2);


        // Java calls JNI C language --V4 function
        // JNI CPP
//        TextView tv4 = findViewById(R.id.buttonRun1);
        String signV4 = EncryptUtils.v4("called","students");
        //tv.setText(EncryptUtils.v4("called","students"));
        fn1Button.setText(signV4);

        Log.e("Fn1--》Test calling Native V4 function----->",signV4);
    }

}