Annotations Recycler 查看 ItemClick

Question

我正在尝试根据来自官方 AndroidAnnotations 站点的以下教程在我的 Activity 中实现简单的回收器视图：adapter link

然而，当我完成所有步骤并尝试实施 @ItemClick 方法时，出现以下错误：

Error:(84, 36) 错误：类型不兼容：RecyclerView 无法转换为 AdapterView

在我生成的 activity 代码下突出显示以下代码：

...((AdapterView<?> ) this.miestnostiList).setOnItemClickListener(new OnItemClickListener() {...

根据指南，我创建了以下基础 classes:

public abstract class RecyclerViewAdapterBase<T, V extends View> extends RecyclerView.Adapter<ViewWrapper<V>> {

    protected List<T> items = new ArrayList<T>();

    @Override
    public int getItemCount() {
        return items.size();
    }

    @Override
    public final ViewWrapper<V> onCreateViewHolder(ViewGroup parent, int viewType) {
        return new ViewWrapper<V>(onCreateItemView(parent, viewType));
    }

    protected abstract V onCreateItemView(ViewGroup parent, int viewType);
}


public class ViewWrapper<V extends View> extends RecyclerView.ViewHolder {

    private V view;

    public ViewWrapper(V itemView) {
        super(itemView);
        view = itemView;
    }

    public V getView() {
        return view;
    }
}

然后我创建了我的行视图项目如下：

@EViewGroup(R.layout.activity_list_miestnosti_row)
public class MiestnostItemView extends LinearLayout{
    @ViewById(R.id.txt_miestnost_row_nazov)
    TextView nazov;

    public MiestnostItemView(Context context) {
        super(context);
    }

    public void bind(Miestnost miestnost){
        nazov.setText(miestnost.getNazov());
    }
}

最后是我的适配器 class:

public class ListMiestnostiAdapter extends RecyclerViewAdapterBase<Miestnost, MiestnostItemView> {
    @RootContext
    Context context;


    @Override
    protected MiestnostItemView onCreateItemView(ViewGroup parent, int viewType) {
        return MiestnostItemView_.build(context);
    }

    @Override
    public void onBindViewHolder(ViewWrapper<MiestnostItemView> holder, int position) {
        MiestnostItemView view = holder.getView();
        Miestnost miestnost = items.get(position);

        view.bind(miestnost);
    }
}

在我的 Activity 下，我在 @AfterViews 部分初始化我的适配器：

    @ViewById
    RecyclerView miestnostiList;

    ListMiestnostiAdapter adapter;

    @AfterViews
    void bindAdapter() {
        GetData();//fetch data

        adapter = new ListMiestnostiAdapter();
        adapter.addData(miestnosti);
        RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getApplicationContext());
        miestnostiList.setLayoutManager(layoutManager);
        miestnostiList.setItemAnimator(new DefaultItemAnimator());
        miestnostiList.addItemDecoration(new DividerItemDecoration(this, LinearLayoutManager.VERTICAL));
        miestnostiList.setAdapter(adapter);

    }

这是我的@ItemClick 方法：

@ItemClick
void miestnostiListItemClicked(Miestnost miestnost){
    Log.i("", "iteClicked: ");
}

我在这里错过了什么？

Answer 1

我认为 @ItemClick 不适用于 RecyclerView。您可以通过两种方式进行：

1- 更改您的 RecyclerViewAdapterBase 添加 onClick 支持，然后将该方法覆盖到子适配器中，如下所示：

public abstract class RecyclerViewAdapterBase<T, V extends View & ViewWrapper.Binder<T>> extends RecyclerView.Adapter<ViewWrapper<T, V>> {

    protected List<T> mItems = new ArrayList<T>();

    @Override
    public final ViewWrapper<T, V> onCreateViewHolder(ViewGroup parent, int viewType) {
        return new ViewWrapper<T, V>(onCreateItemView(parent, viewType));
    }

    protected abstract V onCreateItemView(ViewGroup parent, int viewType);

    @Override
    public final void onBindViewHolder(ViewWrapper<T, V> viewHolder, int position) {
        V view = viewHolder.getView();
        T data = mItems.get(position);

    /*************************************************************/
    *       AT THIS POINT IT TRY TO SET A CLICK LISTENER     */
    /*************************************************************/
        setOnClickListener(view, data);

        view.bind(data);
    }

    @Override
    public int getItemCount() {
        return null == mItems ? 0 : mItems.size();
    }

    public void add(T item) {
        mItems.add(item);
        notifyDataSetChanged();
    }

    public void addAll(Collection<T> collection) {
        mItems.addAll(collection);
        notifyDataSetChanged();
    }

    public void clear() {
        mItems.clear();
    }


    /**
     * override this into child adapter to manage click event
     */
    public void setOnClickListener(View v, T item) {}
}

这是子适配器

@EBean
public class ChildAdapter extends RecyclerViewAdapterBase<Child, ChildView> {

@RootContext
Context ctx;
@Bean(ChildFinder.class)
IChildFinder finder;

@Bean
OttoBus mOttoBus;

/**
 * get data by finder
 */
public void initAdapter() {
    mItems = finder.findAll();
}

@Override
public int getItemViewType(int position) {
    return position;
}

@Override
protected ChildView onCreateItemView(ViewGroup parent, int viewType) {
    return ChildView_.build(ctx);
}


@Override
public void setOnClickListener(View v, final Child item) {
    v.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mOttoBus.post(new RequestChildEvent(item));
        }
    });
}
}

2-否则，如果您使用的是自定义视图，则可以遵循事件驱动的方法绑定您直接单击视图（例如在自定义视图的根视图上），然后发送事件必须响应点击的组件

Annotations Recycler 查看 ItemClick

Annotations Recycler View ItemClick

java

android

onitemclick

android-annotations