ListView未根据数据库更改进行更新

// 示例代码：Android 中使用 CursorAdapter
Cursor cursor = database.query(...);
ListView listView = findViewById(R.id.listView);
CursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.list_item, cursor, FROM_COLUMNS, TO_IDS, 0);
listView.setAdapter(adapter);

// 示例代码：Android 中使用 ContentObserver
ContentResolver resolver = getContentResolver();
resolver.registerContentObserver(CONTENT_URI, true, new MyContentObserver(new Handler()));

class MyContentObserver extends ContentObserver {
    public MyContentObserver(Handler handler) {
        super(handler);
    }

    @Override
    public void onChange(boolean selfChange) {
        super.onChange(selfChange);
        // 重新加载数据并更新 ListView
        Cursor cursor = database.query(...);
        adapter.changeCursor(cursor);
    }
}

// 示例代码：Android 中更新 ListView
adapter.notifyDataSetChanged();