My problem is, I have a recyclerview implemented in a fragment called "FragmentNewsItems" that lists out the set of news (images + text) in cardview. So my task is, to make the app, so that when I click on one of those items in the recyclerview, the app would replace it with another fragment with a web view.
Some good people advised me to create a click event:
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder> {
// add this line
private AdapterView.OnItemClickListener onItemClickListener;
public static class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
private ImageView image;
private TextView text;
FragmentNewsItems fragmentNewsItems = new FragmentNewsItems();
public ViewHolder(@NonNull View itemView) {
super(itemView);
image = itemView.findViewById(R.id.image);
text = itemView.findViewById(R.id.text);
itemView.setOnClickListener(this);
}
@Override
public void onClick(View view) {
mAdapter.onItemHolderClick(ViewHolder.this);
}
}
public void setOnItemClickListener(AdapterView.OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}
private void onItemHolderClick(ViewHolder holder) {
if (onItemClickListener != null)
onItemClickListener.onItemClick(null, holder.itemView, holder.getAdapterPosition(), holder.getItemId());
}
}
and then add the click event to the fragment:
public class FragmentNewsItems extends Fragment implements AdapterView.OnItemClickListener{
View view;
private RecyclerView recyclerView;
private List<NewsItems> cyberNews;
private FragmentNewsItems fragmentNewsItems;
public FragmentNewsItems(){
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
view = inflater.inflate(R.layout.f_news_items_layout, container, false);
recyclerView = (RecyclerView) view.findViewById(R.id.news_items_recycler_view);
RecyclerViewAdapter recyclerAdapter = new RecyclerViewAdapter(getContext(), cyberNews);
// add this line
recyclerAdapter .setOnItemClickListener(this);
recyclerView.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));
recyclerView.setAdapter(recyclerAdapter);
return view;
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
cyberNews = new ArrayList<>();
cyberNews.add(new NewsItems(R.drawable.cyber1, "The of cybersecurity in 5G-connected world"));
cyberNews.add(new NewsItems(R.drawable.cyber2, "Google discovered several iPhone security flaws, and Apple still hasn't patched one"));
cyberNews.add(new NewsItems(R.drawable.cyber3, "WhatsApp and Telegram media files aren't so secure"));
cyberNews.add(new NewsItems(R.drawable.cyber4, "Microsoft Exposes Russian Cyberattacks on Phones, Printers, Video Decoders"));
cyberNews.add(new NewsItems(R.drawable.cyber5, "Tesla demonstrated the power of The Internet of Things"));
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// here open new activity or replace fragment which have webview.
}
Like this:
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// here open new activity or replace fragment which have webview.
}
But you see a comment which says open a new activity or replace fragment which have a webview. I tried multiple times to replace with another fragment, but it simply does not open my fragment. I mean, it loads the layout, but does not replace with another fragment. I am a new to Android, and to be honest I have no idea what's wrong. Can you help me with coding?
