支持数据绑定的Android分页库

public class MyViewModel extends ViewModel {
    private MutableLiveData<List<Item>> itemList = new MutableLiveData<>();

    public LiveData<List<Item>> getItemList() {
        return itemList;
    }

    public void updateItemList(List<Item> newList) {
        itemList.setValue(newList);
    }
}

<layout xmlns:android="http://schemas.android.com/apk/res/android">
    <data>
        <variable name="viewModel" type="com.example.MyViewModel"/>
    </data>
    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:itemList="@{viewModel.itemList}"
        app:layoutManager="@{LinearLayoutManager(context)}"
        app:adapter="@{MyAdapter(viewModel.itemList)}"/>
</layout>

class MyViewModel : ViewModel() {
    private val itemList = MutableLiveData<List<Item>>()

    fun loadItems(page: Int) {
        viewModelScope.launch {
            val newItems = withContext(Dispatchers.IO) {
                // 模拟从网络或数据库加载数据
                delay(1000)
                // 返回新加载的数据
                listOf(/* ... */)
            }
            val currentList = itemList.value?.toMutableList() ?: mutableListOf()
            currentList.addAll(newItems)
            itemList.value = currentList
        }
    }
}