如何动态添加项目到GridView Android Studio (Java)

<GridView
    android:id="@+id/gridView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:numColumns="3"
    android:verticalSpacing="10dp"
    android:horizontalSpacing="10dp"
    android:padding="10dp"/>

GridView gridView = findViewById(R.id.gridView);
ArrayList<String> itemList = new ArrayList<>(); // 假设项目名称存储在一个ArrayList中

ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, itemList);
gridView.setAdapter(adapter);

Button addButton = findViewById(R.id.addButton);
addButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        itemList.add("新项目"); // 添加新项目到itemList
        adapter.notifyDataSetChanged(); // 通知适配器数据已更改
    }
});

gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        String selectedItem = itemList.get(position); // 获取被点击的项目名称
        // 执行相应的操作
    }
});