androidandroid-fragmentsonclicklistenerandroid-recyclerviewandroid-adapter

Fast taps (clicks) on RecyclerView opens multiple Fragments


I have implemented onClick listener to my ViewHolder for my RecyclerView

But when I perform very fast double taps or mouse clicks, it performs the task (opens a seperate fragment in this case) twice or three times.

here is my code

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
    TextView tvTitle, tvDescription;

    public ViewHolder(View itemView) {
        super(itemView);
        itemView.setClickable(true);
        itemView.setOnClickListener(this);

        tvTitle = (TextView) itemView.findViewById(R.id.tv_title);
        tvDescription = (TextView) itemView.findViewById(R.id.tv_description);
    }

    @Override
    public void onClick(View v) {
        mListener.onClick(FRAGMENT_VIEW, getAdapterPosition()); // open FRAGMENT_VIEW
    }
}

Any ideas on how to prevent such behaviour?


Solution

  • You can modify it like this.

    public class ViewHolder extends RecyclerView.ViewHolder implements
            View.OnClickListener {
        TextView tvTitle, tvDescription;
        private long mLastClickTime = System.currentTimeMillis();
        private static final long CLICK_TIME_INTERVAL = 300;
    
        public ViewHolder(View itemView) {
            super(itemView);
            itemView.setClickable(true);
            itemView.setOnClickListener(this);
    
            tvTitle = (TextView) itemView.findViewById(R.id.tv_title);
            tvDescription = (TextView) itemView
                    .findViewById(R.id.tv_description);
        }
    
        @Override
        public void onClick(View v) {
            long now = System.currentTimeMillis();
            if (now - mLastClickTime < CLICK_TIME_INTERVAL) {
                return;
            }
            mLastClickTime = now;
            mListener.onClick(FRAGMENT_VIEW, getAdapterPosition()); // open
                                                                    // FRAGMENT_VIEW
        }
    }