Main

package com.example.tugassqlfirebase;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.google.firebase.auth.FirebaseAuth;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    TextView _ID, _Name, _Username, _Age, _Status;
    Button _Update, _Exit;
    DatabaseHelper _DB;

    String fullname, username, age, status;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        _ID = findViewById(R.id.idUser);
        _Name = findViewById(R.id.Fullname);
        _Username = findViewById(R.id.Username);
        _Age = findViewById(R.id.Usia);
        _Status = findViewById(R.id.Status);

        _Update = findViewById(R.id.EditProfile);
        _Update.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent Update = new Intent(MainActivity.this, UpdateActivity.class);
                Update.putExtra("fullname", fullname);
                Update.putExtra("username", username);
                Update.putExtra("age", age);
                Update.putExtra("status", status);
                startActivity(Update);
            }
        });

        _Exit = findViewById(R.id.SignOut);
        _Exit.setOnClickListener(this);

        _DB = new DatabaseHelper(MainActivity.this);

        getData();

    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 1) {
            recreate();
        }
    }

    void getData() {
        Cursor res = _DB.readData();
        while (res.moveToNext()) {

            _ID.setText(res.getString(0));
            _Name.setText(res.getString(1));
            _Username.setText(res.getString(2));
            _Age.setText(res.getString(3));
            _Status.setText(res.getString(4));

        }
    }

    @Override
    public void onClick(View v) {
        FirebaseAuth.getInstance().signOut();
        Intent Exit = new Intent(MainActivity.this, LoginActivity.class);
        startActivity(Exit);
        finish();
    }
}