ListView ve Kayıt İşlemi

Arayüzde bir ListView kullanarak Cursor okuyup ekrana basıyoruz.

Unity Editör Adımları

package com.example.todolist;
import android.content.ContentValues; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.os.Bundle; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import androidx.appcompat.app.AppCompatActivity; import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    DBHelper dbHelper; SQLiteDatabase db; ArrayList<String> taskList = new ArrayList<>(); ArrayAdapter<String> adapter;
    @Override protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Layout'da ListView, EditText ve Button olmalı
        
        dbHelper = new DBHelper(this); db = dbHelper.getWritableDatabase();
        ListView listView = findViewById(R.id.listView); EditText editTask = findViewById(R.id.editTask); Button btnAdd = findViewById(R.id.btnAdd);

        adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, taskList);
        listView.setAdapter(adapter); loadTasks();

        btnAdd.setOnClickListener(v -> {
            ContentValues cv = new ContentValues(); cv.put("name", editTask.getText().toString());
            db.insert("tasks", null, cv); editTask.setText(""); loadTasks();
        });
        
        listView.setOnItemLongClickListener((parent, view, position, id) -> {
            db.delete("tasks", "name=?", new String[]{taskList.get(position)});
            loadTasks(); return true;
        });
    }
    private void loadTasks() {
        taskList.clear();
        Cursor c = db.rawQuery("SELECT * FROM tasks", null);
        while(c.moveToNext()) { taskList.add(c.getString(1)); }
        c.close(); adapter.notifyDataSetChanged();
    }
}