[英]RecylcerView item click listener
我正在尝试捕获RecyclerView中项目的点击事件,但是它不起作用。 我的研究(SO)告诉我将侦听器放入适配器,所以我做到了。 这是代码:
public class PoliticianPagerAdapter extends RecyclerView.Adapter<PoliticianPagerAdapter.ViewHolder> {
private Politician[] mDataset;
// Provide a reference to the views for each data item
// Complex data items may need more than one view per item, and
// you provide access to all the views for a data item in a view holder
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
// each data item is just a string in this case
public TextView name;
public TextView term;
public TextView position;
public ImageView image;
public CardView card ;
public ViewHolder(View layout) {
super(layout);
name = (TextView) layout.findViewById(R.id.politicianNameAndParty);
term = (TextView) layout.findViewById(R.id.politicianTerm);
position = (TextView) layout.findViewById(R.id.politicianPosition);
image = (ImageView) layout.findViewById(R.id.politicianImage);
card = (CardView) layout.findViewById(R.id.politicianCard);
}
@Override
public void onClick(View view)
{
Intent intent = new Intent(getActivity(),PoliticianPage.class);
startActivity(intent);
}
}
public PoliticianPagerAdapter(Politician[] myDataset) {
mDataset = myDataset;
}
@Override
public PoliticianPagerAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.fragment_home_politician_block, parent, false);
return new ViewHolder(v);
}
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
// - get element from your dataset at this position
// - replace the contents of the view with that element
holder.name.setText(mDataset[position].name + " (" + mDataset[position].party + ")");
holder.term.setText(Integer.toString(mDataset[position].termBegin) + " - " + Integer.toString(mDataset[position].termEnd));
holder.term.setText(mDataset[position].position);
holder.image.setImageResource(mDataset[position].image);
}
// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
return mDataset.length;
}
}
在CardView中使用View来拦截click事件。
item.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.CardView
android:id="@+id/card_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_margin="4dp"
android:elevation="3dp"
card_view:cardCornerRadius="4dp">
<!-- Your card -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/clickable_view_card"
android:clickable="true"/>
</android.support.v7.widget.CardView>
</LinearLayout>
适配器:
public class Adapter extends RecyclerView.Adapter<Adapter.ViewHolder> {
public class ViewHolder extends RecyclerView.ViewHolder {
public RelativeLayout clickable_layout;
public ViewHolder(View itemView) {
super(itemView);
clickable_layout = (RelativeLayout) itemView.findViewById(R.id.clickable_view_card);
}
}
@Override
public Adapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.card_view, parent, false);
return new ViewHolder(v);
}
@Override
public void onBindViewHolder(final Adapter.ViewHolder holder, final int position) {
holder.clickable_layout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d("OnClick", "position clicked: "+ position);
}
});
}
@Override
public int getItemCount() {
return list.size();
}
}
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