import ohos.aafwk.ability.AbilitySlice;
import ohos.agp.components.*;
import ohos.agp.utils.LayoutAlignment;
import ohos.agp.window.dialog.ToastDialog;

import java.util.Arrays;

public class MyAbilitySlice extends AbilitySlice {
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);

        // 创建一个列表容器
        ListContainer listContainer = new ListContainer(this);
        listContainer.setWidth(ComponentContainer.LayoutConfig.MATCH_PARENT);
        listContainer.setHeight(ComponentContainer.LayoutConfig.MATCH_PARENT);

        // 设置适配器
        MyListAdapter myListAdapter = new MyListAdapter(Arrays.asList("Item 1", "Item 2", "Item 3"));
        listContainer.setItemProvider(myListAdapter);

        // 添加项选中监听器
        listContainer.setItemSelectedListener(new MyItemSelectedListener());

        // 在界面上添加列表容器
        super.setUIContent(listContainer);
    }

    // 自定义的项选中监听器类
    private class MyItemSelectedListener implements ListContainer.ItemSelectedListener {
        @Override
        public void onItemSelected(ListContainer listContainer, Component component, int position, long id) {
            // 处理项选中事件的逻辑
            showToast("Item Selected: " + position);
        }

        private void showToast(String message) {
            new ToastDialog(getContext())
                    .setText(message)
                    .setAlignment(LayoutAlignment.CENTER)
                    .show();
        }
    }

    // 适配器类
    private static class MyListAdapter extends BaseItemProvider {
        private final List<String> dataList;

        MyListAdapter(List<String> dataList) {
            this.dataList = dataList;
        }

        @Override
        public int getCount() {
            return dataList.size();
        }

        @Override
        public Object getItem(int position) {
            return dataList.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public Component getComponent(int position, Component component, ComponentContainer componentContainer) {
            // 创建或复用列表项组件
            Text text = new Text(componentContainer.getContext());
            text.setText(dataList.get(position));
            text.setTextSize(50);
            text.setPadding(50, 50, 50, 50);
            return text;
        }
    }
}