如何像使用ListView一样实现RecyclerView onItemClick 侦听器，这是我使用ListView的旧适配器类：
public class GenreAdapter extends BaseAdapter {
....
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// convert view = design
View v = convertView;
if (v == null) {
holder = new ViewHolder();
v = vi.inflate(Resource, null);
holder.textTitle = (TextView) v.findViewById(R.id.textTitle);
v.setTag(holder);
} else {
holder = (ViewHolder) v.getTag();
}
holder.textTitle.setText(genreArrayList.get(position).getTitle());
v.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Bundle bundle = new Bundle();
bundle.putSerializable("data", genreArrayList);
bundle.putInt("current", position);
Intent intent = new Intent(context, MovieActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtras(bundle);
context.startActivity(intent);
}
});
return v;
}
static class ViewHolder {
public TextView textTitle;
}
MainFragment.java： -
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_main, container, false);
/* Initialize recycler view */
mRecyclerView = (RecyclerView) view.findViewById(R.id.recycler_view);
mRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
mRecyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL_LIST));
list = new ArrayList<MainPoho>();
adapter = new MainAdapter(getActivity(), list);
mRecyclerView.setAdapter(adapter);
.......
}
这是我使用Adapter的新RecyclerView课程：
public class MyRecyclerAdapter extends RecyclerView.Adapter<FeedListRowHolder> {
private List<FeedItem> feedItemList;
private Context mContext;
public MyRecyclerAdapter(Context context, List<FeedItem> feedItemList) {
this.feedItemList = feedItemList;
this.mContext = context;
}
@Override
public FeedListRowHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.list_row, null);
FeedListRowHolder mh = new FeedListRowHolder(v);
return mh;
}
@Override
public void onBindViewHolder(FeedListRowHolder feedListRowHolder, int i) {
FeedItem feedItem = feedItemList.get(i);
feedListRowHolder.title.setText(Html.fromHtml(feedItem.getTitle()));
}
@Override
public int getItemCount() {
if(feedItemList !=null){
return feedItemList.size();
} else {
return 0;
}
}
public class FeedListRowHolder extends RecyclerView.ViewHolder {
protected TextView title;
public FeedListRowHolder(View view) {
super(view);
this.title = (TextView) view.findViewById(R.id.title);
}
FeedItem.java： -
public class FeedItem {
private String title;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}
答案 0 :(得分：6)
首先在viewHolder中存储整个视图：
public class FeedListRowHolder extends RecyclerView.ViewHolder {
protected TextView title;
protected View mRootView;
public FeedListRowHolder(View view) {
super(view);
this.title = (TextView) view.findViewById(R.id.title);
mRootView = view;
}
然后在onBindViewHolder设置点击监听器：
@Override
public void onBindViewHolder(FeedListRowHolder feedListRowHolder, int i) {
FeedItem feedItem = feedItemList.get(i);
feedListRowHolder.title.setText(Html.fromHtml(feedItem.getTitle()));
feedListRowHolder.mRootView.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
}
});
}
答案 1 :(得分：1)
首先，您必须实现自己的OnItemTouchListener：
static class RecyclerTouchListener implements RecyclerView.OnItemTouchListener{
private GestureDetector gestureDetector;
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener){
gestureDetector = new GestureDetector(context,new GestureDetector.SimpleOnGestureListener(){
@Override
public boolean onSingleTapUp(MotionEvent e) {
//here get the view that has been touched
View child = recyclerView.findChildViewUnder(e.getX(),e.getY());
//now pass the item and its position to your click listener
if(child!=null && clickListener!=null){
clickListener.onClick(child, recyclerView.getChildPosition(child));
}
return true;
}
@Override
public void onLongPress(MotionEvent e) {
}
});
}
public static interface ClickListener {
public void onClick(View view, int position);
}
@Override
public boolean onInterceptTouchEvent(RecyclerView recyclerView, MotionEvent motionEvent) {
//use the gesture detector to intercept singletap and longtouch events
gestureDetector.onTouchEvent(motionEvent);
return false;
}
@Override
public void onTouchEvent(RecyclerView recyclerView, MotionEvent motionEvent) {
}
}
然后你必须实现将由上面的RecyclerTouchListener调用的ClickListener：
private RecyclerTouchListener.ClickListener mClickListener = new RecyclerTouchListener.ClickListener() {
@Override
public void onClick(View view, final int position) {
//Do something with your item...
mRecyclerAdapter.getElementAt(position).doSomething();
}
}
答案 2 :(得分：1)
我知道它有点晚了，但是对于那些流浪而且没有迷失的人。我找到了这个优雅的解决方案here。
所以基本上你创建了一个如下所示的ItemClickSupport类
public class ItemClickSupport {
private final RecyclerView mRecyclerView;
private OnItemClickListener mOnItemClickListener;
private OnItemLongClickListener mOnItemLongClickListener;
private View.OnClickListener mOnClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mOnItemClickListener != null) {
RecyclerView.ViewHolder holder = mRecyclerView.getChildViewHolder(v);
mOnItemClickListener.onItemClicked(mRecyclerView, holder.getAdapterPosition(), v);
}
}
};
private View.OnLongClickListener mOnLongClickListener = new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
if (mOnItemLongClickListener != null) {
RecyclerView.ViewHolder holder = mRecyclerView.getChildViewHolder(v);
return mOnItemLongClickListener.onItemLongClicked(mRecyclerView, holder.getAdapterPosition(), v);
}
return false;
}
};
private RecyclerView.OnChildAttachStateChangeListener mAttachListener
= new RecyclerView.OnChildAttachStateChangeListener() {
@Override
public void onChildViewAttachedToWindow(View view) {
if (mOnItemClickListener != null) {
view.setOnClickListener(mOnClickListener);
}
if (mOnItemLongClickListener != null) {
view.setOnLongClickListener(mOnLongClickListener);
}
}
@Override
public void onChildViewDetachedFromWindow(View view) {
}
};
private ItemClickSupport(RecyclerView recyclerView) {
mRecyclerView = recyclerView;
mRecyclerView.setTag(R.id.item_click_support, this);
mRecyclerView.addOnChildAttachStateChangeListener(mAttachListener);
}
public static ItemClickSupport addTo(RecyclerView view) {
ItemClickSupport support = (ItemClickSupport) view.getTag(R.id.item_click_support);
if (support == null) {
support = new ItemClickSupport(view);
}
return support;
}
public static ItemClickSupport removeFrom(RecyclerView view) {
ItemClickSupport support = (ItemClickSupport) view.getTag(R.id.item_click_support);
if (support != null) {
support.detach(view);
}
return support;
}
public ItemClickSupport setOnItemClickListener(OnItemClickListener listener) {
mOnItemClickListener = listener;
return this;
}
public ItemClickSupport setOnItemLongClickListener(OnItemLongClickListener listener) {
mOnItemLongClickListener = listener;
return this;
}
private void detach(RecyclerView view) {
view.removeOnChildAttachStateChangeListener(mAttachListener);
view.setTag(R.id.item_click_support, null);
}
public interface OnItemClickListener {
void onItemClicked(RecyclerView recyclerView, int position, View v);
}
public interface OnItemLongClickListener {
boolean onItemLongClicked(RecyclerView recyclerView, int position, View v);
}
}
然后在您已定义并绑定RecyclerView的activity / fragment中，执行以下操作
//Here the mRecyclerView is the name of the defined recyclerView
ItemClickSupport.addTo(mRecyclerView).setOnItemClickListener(new ItemClickSupport.OnItemClickListener() {
@Override
public void onItemClicked(RecyclerView recyclerView, int position, View v) {
// do it
}
});
此外，您需要在res / values文件夹中创建一个ids.xml文件，并在
中定义以下内容<?xml version="1.0" encoding="utf-8"?>
<resources>
<item name="item_click_support" type="id" />
</resources>
我希望这会有所帮助。仍然建议您浏览article以了解更多相关信息。