Tôi đang cố gắng sử dụng thư viện picasso để có thể tải url vào imageView, nhưng tôi không thể contextsử dụng thư viện picasso một cách chính xác.
public class FeedAdapter extends RecyclerView.Adapter<FeedAdapter.ViewHolder> {
private List<Post> 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 {
// each data item is just a string in this case
public TextView txtHeader;
public ImageView pub_image;
public ViewHolder(View v) {
super(v);
txtHeader = (TextView) v.findViewById(R.id.firstline);
pub_image = (ImageView) v.findViewById(R.id.imageView);
}
}
// Provide a suitable constructor (depends on the kind of dataset)
public FeedAdapter(List<Post> myDataset) {
mDataset = myDataset;
}
// Create new views (invoked by the layout manager)
@Override
public FeedAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
// create a new view
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.feedholder, parent, false);
// set the view's size, margins, paddings and layout parameters
ViewHolder vh = new ViewHolder(v);
return vh;
}
// 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.txtHeader.setText(mDataset.get(position).getPost_text());
Picasso.with(this.context).load("http://i.imgur.com/DvpvklR.png").into(holder.pub_image);
}
// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
return mDataset.size();
}
}