将单击侦听器添加到通用 RecyclerView 适配器 [英] Add click listener to Generic RecyclerView Adapter
问题描述
编辑
因为它是一个 genericAdapter 并不简单,我知道添加点击监听器的方法.在 onCreateViewHolder
中执行此操作并不是一个好习惯.所以这就是为什么我需要一个更好的建议
As It is a genericAdapter not simple one and I know the methods to add click listener. And it is not a good practice to do this in onCreateViewHolder
. So that's why I need a better suggestion
我在 android
中创建了一个 RecyclerView 通用适配器.现在我想要一些改进它的建议.以及如何向其添加 clickListener.
I have created a Generic Adapter for RecyclerView in
android
. Now I want some suggestion to improve it. And how could I add clickListener to it.
GenericAdapter.java
public abstract class GenericAdapter<T> extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private Context context;
private ArrayList<T> items;
private OnRecyclerItemClicked onRecyclerItemClicked;
public abstract RecyclerView.ViewHolder setViewHolder(ViewGroup parent);
public abstract void onBindData(RecyclerView.ViewHolder holder, T val);
public GenericAdapter(Context context, ArrayList<T> items){
this.context = context;
this.items = items;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
RecyclerView.ViewHolder holder = setViewHolder(parent);
return holder;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
onBindData(holder,items.get(position));
}
@Override
public int getItemCount() {
return items.size();
}
public void addItems( ArrayList<T> savedCardItemz){
items = savedCardItemz;
this.notifyDataSetChanged();
}
public T getItem(int position){
return items.get(position);
}
public void setOnRecyclerItemClicked(OnRecyclerItemClicked onRecyclerItemClicked){
this.onRecyclerItemClicked = onRecyclerItemClicked;
}
public interface OnRecyclerItemClicked{
void onItemClicked(View view,int position);
}
}
并称其为
adapter = new GenericAdapter<MyModelClass>(context,listOfModelClass) {
@Override
public RecyclerView.ViewHolder setViewHolder(ViewGroup parent) {
final View view = LayoutInflater.from(context).inflate(R.layout.item_recycler_view, parent, false);
AViewHolder viewHolder = new AViewHolder(context, view);
return viewHolder;
}
@Override
public void onBindData(RecyclerView.ViewHolder holder1, MyModelClass val) {
MyModelClass currentCard = val;
AViewHolder holder = (AViewHolder)holder1;
holder.cardNumber.setText(currentCard.getDisplayNumber());
holder.cardHolderName.setText(currentCard.getCardHolderName());
}
};
mRecyclerView.setAdapter(adapter);
现在我可以如何以及在哪里添加点击侦听器.因为将单击侦听器添加到 onBindData 是一种开销.需要建议.
Now how and where could I add a click listener. As adding click listener to onBindData is an overhead. Need suggestion.
推荐答案
您是否尝试过添加 ViewHolder 并向其添加 clicklistener
Have you tried adding a ViewHolder and add the clicklistener to it
现在是 GenericAdapter.java.
Now GenericAdapter.java.
public abstract class GenericAdapter<T> extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private Context context;
private List<T> items;
private OnRecyclerItemClicked onRecyclerItemClicked;
public abstract RecyclerView.ViewHolder setViewHolder(ViewGroup parent , OnRecyclerItemClicked onRecyclerItemClicked);
public abstract void onBindData(RecyclerView.ViewHolder holder, T val);
public abstract OnRecyclerItemClicked onGetRecyclerItemClickListener();
public GenericAdapter(Context context, List<T> items){
this.context = context;
this.items = items;
onRecyclerItemClicked = onGetRecyclerItemClickListener();
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
RecyclerView.ViewHolder holder = setViewHolder(parent , onRecyclerItemClicked);
return holder;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
onBindData(holder,items.get(position));
}
@Override
public int getItemCount() {
return items.size();
}
public void setItems( ArrayList<T> savedCardItemz){
items = savedCardItemz;
this.notifyDataSetChanged();
}
public T getItem(int position){
return items.get(position);
}
public interface OnRecyclerItemClicked{
void onItemClicked(View view,int position);
}
}
然后这样称呼它
GenericAdapter<CreditCardItemBO> adaptering = new GenericAdapter<CreditCardItemBO>(mContext,new ArrayList<CreditCardItemBO>()) {
@Override
public RecyclerView.ViewHolder setViewHolder(ViewGroup parent, OnRecyclerItemClicked onRecyclerItemClicked) {
final View view = LayoutInflater.from(mContext).inflate(R.layout.item_save_credit_card, parent, false);
CreditCardViewHolder viewHolder = new CreditCardViewHolder(mContext, view,onRecyclerItemClicked);
return viewHolder;
}
@Override
public void onBindData(RecyclerView.ViewHolder holder, CreditCardItemBO val) {
}
@Override
public OnRecyclerItemClicked onGetRecyclerItemClickListener() {
return new OnRecyclerItemClicked() {
@Override
public void onItemClicked(View view, int position) {
}
};
}
};
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