Listen click on specific view on multi view cell

[RajeshDhalange]

Thank for this awesome work. I have two buttons in each cell, how can get to know which button was clicked?

[MGaetan89]

How about setting the click listener on your button directly when you create the ViewHolder of your cell, instead of using the global cell click listener?

[RajeshDhalange]

How about setting the click listener on your button directly when you create the ViewHolder of your cell, instead of using the global cell click listener?

How can I access column and row position in ViewHolder? not found any way there.

[MGaetan89]

In your adapter's onBindCellViewHolder method you receive the row and column index. You can pass them to your your ViewHolder to do what you need.

https://github.com/evrencoskun/TableView/blob/c33f96fa09f3e355e4bdcaafec468db46e6b9523/tableview/src/main/java/com/evrencoskun/tableview/adapter/ITableAdapter.java#L46

[RajeshDhalange]

In your adapter's onBindCellViewHolder method you receive the row and column index. You can pass them to your ViewHolder to do what you need.

https://github.com/evrencoskun/TableView/blob/c33f96fa09f3e355e4bdcaafec468db46e6b9523/tableview/src/main/java/com/evrencoskun/tableview/adapter/ITableAdapter.java#L46

Thank its working fine.
But one doubt, each time onBindCellViewHolder assigning click listener will cause performance overhead?

[MGaetan89]

I would set it in your ViewHolder constructor, it that's possible. Don't recreate a new click listener each time the cell is updated. And you can keep the row and column index in your ViewHolder, so they can be accessed from your click listener.

[RajeshDhalange]

ViewHolder

That is the issue I don't find any method to access column and row position in ViewHolder constructor. Can you please provide a sample code for access column and row position in ViewHolder constructor?

[MGaetan89]

It's not in the constructor of the ViewHolder, but it's coming from the onBindCellViewHolder() method. Here's a sample code (I quickly wrote it here, so it might need some adaptation):

// Adapt your current ViewHolder to have something like this
public class CellViewHolder extends AbstractViewHolder {
    private int column = -1;
    private int row = -1;

    public CellViewHolder(@NonNull View itemView) {
        super(itemView);

        itemView.setOnClickListener(v -> {
            if (column >= 0 && row >= 0) {
                // TODO Do something with column and row
            }
        });
    }

    public void bindTo(Cell cell, int column, int row) {
        this.column = column;
        this.row = row;

        // Your usual binding
    }
}

// Adapt your current onBindCellViewHolder to have something like this
public void onBindCellViewHolder(@NonNull AbstractViewHolder holder, @Nullable Cell cellItemModel, int columnPosition, int rowPosition) {
    ((CellViewHolder) holder).bindTo(cellItemModel, columnPosition, rowPosition);
}

[RajeshDhalange]

Thanks again It's working