I've got a RecyclerView which is loading the content of my String arrays which works fine, however I want to open a new activity depending on which view they have pressed.
What I have done is created an array called classes like so:
<array name="classes">
<item>ClassOne</item>
<item>ClassTwo</item>
<item>ClassThree</item>
<item>ClassFour</item>
</array>
These are stored in an array, and passed to my MainActivityList adapter below:
String[] classes = resource.getStringArray(R.array.classes);
MainActivityList adapter = new MainActivityList(titles,content, images, classes);
recyclerView.setAdapter(adapter);
I've managed to add the OnClickListener to the ViewHolder and output what class is assigned to each view to the log, however I cannot figure out or get working, how to launch another activity.
The class name would be something like ClassOne.class for example
public class MainActivityList extends RecyclerView.Adapter<MainActivityList.ViewHolder> {
private String[] mTitles;
private String[] mContent;
private String[] mClasses;
private TypedArray mImages;
private Context context;
public MainActivityList(String[] titles, String[] content, TypedArray images, String[] classes) {
this.mTitles = titles;
this.mContent = content;
this.mImages = images;
this.mClasses = classes;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup,int i) {
final View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.activity_main_card, viewGroup, false);
ViewHolder vh = new ViewHolder(v);
v.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
ViewHolder vh = (ViewHolder)v.getTag();
Log.v("DEBUG", "Clicked" + vh.classes);
}
});
return vh;
}
public void onBindViewHolder(ViewHolder holder, int position) {
holder.titleView.setText(mTitles[position]);
holder.contentView.setText(mContent[position]);
holder.imageView.setImageDrawable(mImages.getDrawable(position));
holder.classes = mClasses[position];
}
public class ViewHolder extends RecyclerView.ViewHolder {
public TextView titleView;
public TextView contentView;
public ImageView imageView;
public String classes;
public ViewHolder(View v) {
super(v);
titleView = (TextView) v.findViewById(R.id.card_title);
contentView = (TextView) v.findViewById(R.id.card_content);
imageView = (ImageView)v.findViewById(R.id.card_image);
v.setTag(this);
}
}
@Override
public int getItemCount() {
return mTitles.length;
}
}
A ViewHolder describes an item view and metadata about its place within the RecyclerView. Adapter implementations should subclass ViewHolder and add fields for caching potentially expensive findViewById results. While LayoutParams belong to the LayoutManager , ViewHolders belong to the adapter.
Adapters provide a binding from an app-specific data set to views that are displayed within a RecyclerView . A class that extends ViewHolder that will be used by the adapter.
onCreateViewHolder is called when you need a new View. If there is an available Recycled View that can be provided and be bound with new data, then onBindViewHolder is called :) 96.
Intent intent = new Intent(viewObject.getContext(),ActivityName.class);
viewObject.getContext().startActivity(intent);
I was also looking for a solution, and I found this post: http://venomvendor.blogspot.sg/2014/07/setting-onitemclicklistener-for-recycler-view.html
By using the OnItemClickListener interface, you should be able to call startActivity
in your activity.
adapter.SetOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(View v , int position) {
// This is in an Activity so should be able to start new activity, etc.
}
});
Update: I have tested, the method mentioned in the blog worked for me.
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