Annotations Recycler View ItemClick
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【中文标题】Annotations Recycler View ItemClick【英文标题】: 【发布时间】:2018-06-23 07:47:20 【问题描述】:我正在尝试根据官方 androidAnnotations 网站的以下教程在我的 Activity 中实现简单的回收器视图:adapter link
但是,当我完成所有步骤并尝试实现 @ItemClick
方法时,它给了我以下错误:
Error:(84, 36) 错误:不兼容的类型:RecyclerView 无法转换为 AdapterView
在我生成的活动代码下突出显示以下代码:
...((AdapterView<?> ) this.miestnostiList).setOnItemClickListener(new OnItemClickListener() ...
根据指南,我创建了以下基类:
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());
最后是我的适配器类:
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);
在我的活动下,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: ");
我在这里缺少什么?
【问题讨论】:
编译时出现这个错误? 【参考方案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,如果您使用自定义视图,则可以遵循事件驱动方法绑定,您直接单击视图(例如自定义视图的根视图),然后向组件发送事件必须对点击做出反应
【讨论】:
感谢您的帮助。最终决定采用数据绑定方式以上是关于Annotations Recycler View ItemClick的主要内容,如果未能解决你的问题,请参考以下文章
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