Onclicklistener

[cbaser]

I would like to add a clicklistener ( Just I want to show an Alertdialog after the Card is click) but I could not find any explanations to how to do that? Can you please inform me how I can manage it? Thank you

[muramrr]

add this to your CardStackAdapter class

private lateinit var clickListener: OnItemClickListener

...other overriden methods

// allows clicks events to be caught
fun setOnItemClickListener(itemClickListener: OnItemClickListener) {
    clickListener = itemClickListener
}

interace OnItemClickListener {
    fun onItemClick(view: View, position: Int)
}

add this to your ViewHolder class

inner class ViewHolder (itemView: View): RecyclerView.ViewHolder(itemView) {

    init {
        itemView.setOnClickListener {
            clickListener.onItemClick(itemView.rootView, adapterPosition)
        }
    }
...other methods and properties
}

Now use in fragment/activity class like this:

mCardsStackAdapter.setOnItemClickListener(object: CardsStackAdapter.OnItemClickListener{
    override fun onItemClick(view: View, position: Int) {
        Log.d("yourlogs", "Clicked $position")
        //here you can show your alert dialog
    }
})

[cbaser]

@muramrr Thank you for your nice explanation! Can you please provide the Java Implementation as well? I will close it up then

add this to your CardStackAdapter class

private lateinit var clickListener: OnItemClickListener

...other overriden methods

// allows clicks events to be caught
fun setOnItemClickListener(itemClickListener: OnItemClickListener) {
  clickListener = itemClickListener
}

interace OnItemClickListener {
  fun onItemClick(view: View, position: Int)
}

add this to your ViewHolder class

inner class ViewHolder (itemView: View): RecyclerView.ViewHolder(itemView) {

  init {
      itemView.setOnClickListener {
          clickListener.onItemClick(itemView.rootView, adapterPosition)
      }
  }
...other methods and properties
}

Now use in fragment/activity class like this:

mCardsStackAdapter.setOnItemClickListener(object: CardsStackAdapter.OnItemClickListener{
  override fun onItemClick(view: View, position: Int) {
      Log.d("yourlogs", "Clicked $position")
      //here you can show your alert dialog
  }
})

[muramrr]

@muramrr Thank you for your nice explanation! Can you please provide the Java Implementation as well? I will close it up then

@cbaser Same code in Java step by step

private static OnItemClickListener mClickListener;
//...other overriden methods

// allows clicks events to be caught
    void setOnItemClickListener(OnItemClickListener itemClickListener) {
        mClickListener = itemClickListener;
    }

    // parent activity will implement this method to respond to click events
    public interface OnItemClickListener {
        void onItemClick(View view, int position);
    }

 static class ViewHolder extends RecyclerView.ViewHolder {
//some private fields etc
//...
//our constructor
    private ViewHolder (@NonNull final View itemView) {
        super(itemView);
        if (mClickListener != null) 
              mClickListener.onItemClick(itemView.getRootView(),getAdapterPosition());

    }

}

In activity/fragment:

mCardsStackAdapter.setOnItemClickListener(new CardsStackAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(View view, int position) {

            }
        });