要在Android List View中动态填充数据，你可以使用适配器（Adapter）来连接数据库和List View。下面是一个使用SimpleCursorAdapter和SQLite数据库来动态填充List View的示例代码：

1. 创建一个SQLite数据库和表格：

public class DatabaseHelper extends SQLiteOpenHelper {
    private static final String DATABASE_NAME = "mydatabase.db";
    private static final int DATABASE_VERSION = 1;

    private static final String TABLE_NAME = "mytable";
    private static final String COLUMN_ID = "_id";
    private static final String COLUMN_NAME = "name";

    // 构造函数
    public DatabaseHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        String query = "CREATE TABLE " + TABLE_NAME + " (" +
                COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
                COLUMN_NAME + " TEXT)";
        db.execSQL(query);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
        onCreate(db);
    }

    public void insertData(String name) {
        SQLiteDatabase db = this.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put(COLUMN_NAME, name);
        db.insert(TABLE_NAME, null, values);
        db.close();
    }

    public Cursor getAllData() {
        SQLiteDatabase db = this.getReadableDatabase();
        Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE_NAME, null);
        return cursor;
    }
}

2. 在Activity或Fragment中使用SimpleCursorAdapter将数据填充到List View：

public class MainActivity extends AppCompatActivity {
    private ListView listView;
    private DatabaseHelper databaseHelper;
    private SimpleCursorAdapter cursorAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        listView = findViewById(R.id.listView);
        databaseHelper = new DatabaseHelper(this);

        // 获取数据库中的所有数据
        Cursor cursor = databaseHelper.getAllData();

        // 定义要显示的列名
        String[] columns = new String[] {DatabaseHelper.COLUMN_NAME};

        // 定义要显示的控件id
        int[] to = new int[] {R.id.textViewName};

        // 创建适配器
        cursorAdapter = new SimpleCursorAdapter(this, R.layout.list_item, cursor, columns, to, 0);

        // 将适配器设置到List View
        listView.setAdapter(cursorAdapter);
    }

    // 在某个事件触发时添加数据到数据库并更新List View
    public void addButtonClicked(View view) {
        EditText editTextName = findViewById(R.id.editTextName);
        String name = editTextName.getText().toString();
        databaseHelper.insertData(name);

        // 更新List View
        Cursor newCursor = databaseHelper.getAllData();
        cursorAdapter.swapCursor(newCursor);

        editTextName.setText("");
    }
}

3. 在布局文件中定义ListView和添加按钮：

这样，当点击添加按钮时，会将EditText中的文本插入到数据库，并更新List View中显示的数据。