Android : Control Smooth scroll over recycler view

Question

I am using Recyclerview with CardView. I am aware how to control speed on list view. But not for Recyclerview.

I searched a lot in found class name SmoothScroll. How

Answer 1

I just simplifying Answer how to use it to control smooth scroll.

Create Class

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;

public class CustomRecyclerView extends RecyclerView {

    Context context;

    public CustomRecyclerView(Context context) {
        super(context);
        this.context = context;
    }

    public CustomRecyclerView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CustomRecyclerView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public boolean fling(int velocityX, int velocityY) {

        velocityY *= 0.7;
        // velocityX *= 0.7; for Horizontal recycler view. comment velocityY line not require for Horizontal Mode.

        return super.fling(velocityX, velocityY);
    }

}

Adjust speed by Replacing 0.7 to your value.

Now use this class in your XML like this.

<.CustomRecyclerView
    android:id="@+id/my_recycler_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scrollbars="vertical" />

Read RecyclerView in Java like.

CustomRecyclerView mRecyclerView;
mRecyclerView = (CustomRecyclerView) findViewById(R.id.my_recycler_view);