Change RecyclerView scrollBar width

Question

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#ddd"
        android:fadeScrollbars="true"
        android:scrollbarSize="12dp"
        android:orientation="vertical"
        android:scrollbars="vertical"/>

I am testing the code on 5.1.1. Changing android:scrollbarSize has no effect. I tried increasing and decreasing it, no change.

How to change the width?

Merce

Answer 1

Now, I tell you a method,you can try it and then you will know the answer: add the following codes:

android:scrollbarThumbVertical="@color/colorAccent"

the whole block like this:

 <android.support.v7.widget.RecyclerView
    android:id="@+id/RV_hot_latest"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:scrollbars="vertical"
    android:scrollbarThumbVertical="@color/colorAccent"
    android:scrollbarSize="18dp"
    android:scrollbarStyle="outsideInset"/>

Now ,you will find you android:scrollbarSize has effect. Good luck!

Plerre

Answer 2

You have one of two oportunities:

1) Change drawable of scrollbar through android:scrollbarThumbVertical="@drawable/yoursdrawablefile

2) Work with scrollbar programmatically through onDrawHorizontalScrollBar and onDrawVerticalScrollBar callbacks.

Please, first two answers of this question for more details.

Bequeath

why changing the attribute in xml doesn't work? is it known bug? – Merce

Answer 3

1. Horizontal RecyclerView

   android:scrollbars="horizontal"
   android:scrollbarThumbHorizontal="@color/horizontal_color"
   android:scrollbarSize="1dp"
   

2. Vertical RecyclerView ( default android:scrollbars="vertical")

   android:scrollbarThumbHorizontal="@color/vertical_color"
   android:scrollbarSize="1dp"
   

Evannia