[英]Set onclicklistener in recyclerview
My adaptor class: 我的适配器类:
public class Adaptor extends RecyclerView.Adapter<Adaptor.Holder>{
private ArrayList<Winkel> winkels;
private LayoutInflater inflater;
private ImageView icon;
private ItemCLickCallback itemCLickCallback;
public interface ItemCLickCallback {
void onItemClick(int p);
void onSecItemClick(int p);
}
public void setItemCLickCallback(final ItemCLickCallback itemCLickCallback1){
;this.itemCLickCallback = itemCLickCallback;
}
public Adaptor (ArrayList<Winkel> winkels,Context c){
this.inflater = LayoutInflater.from(c);
this.winkels = winkels;
}
@Override
public Holder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.list_item,parent,false);
return new Holder(view);
}
@Override
public void onBindViewHolder(Holder holder, int position) {
Winkel winkel = winkels.get(position);
holder.title.setText(winkel.getNaam());
if (winkel.isFavourtite()){
holder.icon.setImageResource(R.drawable.ic_star_black_18dp);
}
else{
holder.icon.setImageResource(R.drawable.ic_star_border_black_18dp);
}
}
@Override
public int getItemCount() {
return winkels.size();
}
class Holder extends RecyclerView.ViewHolder implements View.OnClickListener{
private TextView title;
private View container;
private ImageView icon;
public Holder(View itemView) {
super(itemView);
title = (TextView)itemView.findViewById(R.id.lbl_item_text);
container = itemView.findViewById(R.id.cont_item_root);
icon = (ImageView) itemView.findViewById(R.id.im_item_icon_secondary);
icon.setOnClickListener(this);
container.setOnClickListener(this);
}
@Override
public void onClick(View v) {
if(v.getId()==R.id.cont_item_root){
itemCLickCallback.onItemClick(getAdapterPosition());
}
else{
itemCLickCallback.onSecItemClick(getAdapterPosition());
}
}
}
}
@Override
public void onClick(View v) {
}
}
}
Code where it gets implemented (my issue is here at adaptor.setItemClickCallback(context) 实现它的代码(我的问题在这里Adaptor.setItemClickCallback(context)
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
Adaptor adaptor = new Adaptor(winkels,context);
recyclerview.setLayoutManager(new LinearLayoutManager(context));
recyclerview.addItemDecoration(new VerticalSpace(30));
recyclerview.setAdapter(adaptor);
adaptor.setItemCLickCallback(context);
}
Called from fragment overview: 从片段概述调用:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_overview, container, false);
mRecyclerView = (RecyclerView) view.findViewById(R.id.recycle);
ODKortrijkWebservice webs = new ODKortrijkWebservice(this.getActivity(),mRecyclerView);
webs.execute();
return view;
}
How do I set the context for ItemCLickCallback(this)? 如何设置ItemCLickCallback(this)的上下文? It should be context (at least I think so?) because that's what gets passed from the fragment but I can't seem to figure out how to get this to work, so some help would be appreciated.
它应该是上下文(至少我是这样认为的),因为这是片段传递的内容,但是我似乎无法弄清楚如何使它起作用,因此,将不胜感激。 Basically I want to add onclicklisteners for every item in my recyclerview, and the recyclerview is created by using data from a webservice, hence why the adaptor class is called from the class where I get the data from the web service, which gets excecuted in my fragment.
基本上,我想为recyclerview中的每个项目添加onclicklisteners,并且recyclerview是通过使用来自Web服务的数据创建的,因此为什么要从从Web服务获取数据的类中调用适配器类,而该类在我的产品中被执行分段。 Thank you.
谢谢。
I recommend you to make ODKortrijkWebservice.Callback
like following. 我建议您像下面这样制作
ODKortrijkWebservice.Callback
。
In your ODKortrijkWebservice: 在您的ODKortrijkWebservice中:
public class ODKortrijkWebservice extends AsyncTask<...> {
private Callback mCallback;
public interface Callback {
void onSuccess(ArrayList<Winkel> winkels);
}
public ODKortrijkWebservice(Context context, Callback callback) {
...
mCallback = callback;
...
}
@Override
protected void onPostExecute(Void aVoid) {
...
mCallback.onSuccess(winkels);
}
}
In your Fragment: 在您的片段中:
public class YourFragment extends Fragment implements ODKortrijkWebservice.Callback, Adaptor.ItemCLickCallback {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_overview, container, false);
mRecyclerView = (RecyclerView) view.findViewById(R.id.recycle);
ODKortrijkWebservice webs = new ODKortrijkWebservice(this.getActivity(), this);
webs.execute();
return view;
}
@Override
public void onSuccess(ArrayList<Winkel> winkels) {
Adaptor adaptor = new Adaptor(winkels, getContext());
mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
mRecyclerView.addItemDecoration(new VerticalSpace(30));
mRecyclerView.setAdapter(adaptor);
adaptor.setItemCLickCallback(this);
}
@Override
public void onItemClick(int p) {
}
@Override
public void onSecItemClick(int p) {
}
}
Here, You need to create one interface at RecycleView.Adapter<> 在这里,您需要在RecycleView.Adapter <>中创建一个接口。
private static OnItemClickListener listener;
// Define the listener interface
public interface OnItemClickListener {
void onItemClick(View itemView, int position);
}
// Define the method that allows the parent activity or fragment to define the listener
public void setOnItemClickListener(OnItemClickListener listener) {
this.listener = listener;
}
send require details with interface method 使用接口方法发送需要的详细信息
public class ViewHolder extends RecyclerView.ViewHolder{
TextView header_title;
public ViewHolder(final View itemView) {
super(itemView);
txt_country_name = (TextView)itemView.findViewById(R.id.header_title);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Triggers click upwards to the adapter on click
if (listener != null)
listener.onItemClick(itemView, getLayoutPosition());
}
});
}
}
call adapter listener 呼叫适配器监听器
ListAdapter listAdapter;
listAdapter.setOnItemClickListener(new listAdapter.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
Toast.makeText(getActivity(), position+ " was clicked!", Toast.LENGTH_SHORT).show();
}
});
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