I have no idea how to achieve this. I want to insert a row after 10th position of item in GridView. I have no idea from where to I start this.
Thanks and please give some advice.
Step 1: Define two layout item one for column and other one for row
Step 2: Create recycler view adapter , and override below methods
@Override
public int getItemViewType(int position) {
int viewType;
if ((position + 1) % 10 == 0) {
viewType = VIEW_TYPE_ROW;
} else {
viewType = VIEW_TYPE_COLUMN;
}
return viewType;
}
@Override
public long getItemId(int position) {
/**
* Optimization of notifyDataSetChanged
* Look at documentation for setHasStableIds(true) and getItemId(int position)
*/
return STABLE_ID + position;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
switch (viewType) {
case VIEW_TYPE_COLUMN:
// inflate column layout and view holder
break;
case VIEW_TYPE_ROW:
// inflate row layout and view holder
break;
}
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
switch (getItemViewType(position)) {
case VIEW_TYPE_COLUMN:
break;
case VIEW_TYPE_ROW:
break;
}
}
While initializing adapter do like below
final GridLayoutManager layoutManager = new GridLayoutManager(getActivity().getApplicationContext(), 2);
layoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
@Override
public int getSpanSize(int position) {
switch (themeAdapter.getItemViewType(position)) {
case ThemeAdapter.VIEW_TYPE_COLUMN:
return 1;
case ThemeAdapter.VIEW_TYPE_ROW:
return layoutManager.getSpanCount();
default:
return layoutManager.getSpanCount();
}
}
});
Here themeAdapter is your RecyclerView adapter.