android - Kotlin - 将项目添加到 ExpandableListView

Question

我正在尝试使用 Kotlin 在 Android Studio 中动态填充我的可扩展 ListView 。但截至目前，我无法找到任何最新的功能来执行此操作，我发现的所有功能似乎都已过时。这是我的骨架代码:

private val shows = listOf("First", "Breaking Bad", "Game of Thrones", "Bob and Martin...")

    private val expandableListView: ExpandableListView by bind(R.id.theListView)

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        //Add items to expandable list view here
    }

提前致谢

Answer 1

对我来说效果很好。
在您定义列表数据的 Activity 中执行此操作:

private ArrayList<HeaderInfo> SectionList = new ArrayList<>();
...
//create the adapter by passing your ArrayList data
listAdapter = new ExpandableListAdapter(MyListActivity.this, SectionList);
//attach the adapter to the list
expandableListView.setAdapter(listAdapter);

这是我的可扩展列表适配器中的构造函数

public class ExpandableListAdapter extends BaseExpandableListAdapter {

private Context context;
private ArrayList<HeaderInfo> SectionList;

public ExpandableListAdapter(Context context, ArrayList<HeaderInfo>
SectionList) {   
    this.context = context;
    this.SectionList = SectionList;
}
...