How to create context menu for RecyclerView
How do I implement context menu for RecyclerView?
Apparently calling registerForContextMenu(recyclerView)
doesn't work. I'm calling it from a fragment. Did anybody have any success implementing this?
Thanks for the info and comments. I was able to achieve ContextMenu
for items in Recyclerview
.
Here is what I did
in Fragment's onViewCreated
method or Activity's onCreate
method:
registerForContextMenu(mRecyclerView);
Then in Adapter add
private int position;
public int getPosition() {
return position;
}
public void setPosition(int position) {
this.position = position;
}
make the ViewHolder
class implement OnCreateContextMenuListener
public static class ViewHolder extends RecyclerView.ViewHolder
implements View.OnCreateContextMenuListener {
public ImageView icon;
public TextView fileName;
public ImageButton menuButton;
public ViewHolder(View v) {
super(v);
icon = (ImageView)v.findViewById(R.id.file_icon);
fileName = (TextView)v.findViewById(R.id.file_name);
menuButton = (ImageButton)v.findViewById(R.id.menu_button);
v.setOnCreateContextMenuListener(this);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenu.ContextMenuInfo menuInfo) {
//menuInfo is null
menu.add(Menu.NONE, R.id.ctx_menu_remove_backup,
Menu.NONE, R.string.remove_backup);
menu.add(Menu.NONE, R.id.ctx_menu_restore_backup,
Menu.NONE, R.string.restore_backup);
}
}
onBindViewHolder
method add OnLongClickListener
on the holder.itemView to capture the position before the context menu is loaded:
holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
setPosition(holder.getPosition());
return false;
}
});
Then in onViewRecycled
remove the Listener so that there are no reference issues. (may not be required).
@Override
public void onViewRecycled(ViewHolder holder) {
holder.itemView.setOnLongClickListener(null);
super.onViewRecycled(holder);
}
Finally in the Fragment/Activity override the onContextItemSelected
as under:
@Override
public boolean onContextItemSelected(MenuItem item) {
int position = -1;
try {
position = ((BackupRestoreListAdapter)getAdapter()).getPosition();
} catch (Exception e) {
Log.d(TAG, e.getLocalizedMessage(), e);
return super.onContextItemSelected(item);
}
switch (item.getItemId()) {
case R.id.ctx_menu_remove_backup:
// do your stuff
break;
case R.id.ctx_menu_restore_backup:
// do your stuff
break;
}
return super.onContextItemSelected(item);
}
You can't directly implement these method like onClickListener, OnContextMenuListener etc. because RecycleView extends android.view.ViewGroup. So we cant directly use these method. We can implement these methods in ViewHolder adapter class. We can use context menu in RecycleView like this way:
public static class ViewHolder extends RecyclerView.ViewHolder implements OnCreateContextMenuListener {
TextView tvTitle;
ImageView ivImage;
public ViewHolder(View v) {
super(v);
tvTitle =(TextView)v.findViewById(R.id.item_title);
v.setOnCreateContextMenuListener(this);
}
}
Now we follow the same procedure while implements the context menu.
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
menu.setHeaderTitle("Select The Action");
menu.add(0, v.getId(), 0, "Call");//groupId, itemId, order, title
menu.add(0, v.getId(), 0, "SMS");
}
If you get any difficulties ask in comment.