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463 Stars 104 Forks Apache License 2.0 145 Commits 38 Opened issues


Provides fast scroll and section idexer for recycler view

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Deprecation notice

With significant changes to recyclerview and stable jetpack compose being released, this project will no longer be maintained.

Recycler Bubble

Provides fast scroll and section indexer for recycler view. Uses a different mechanism than similar libraries to provide smooth movement of scroller handle when scrolling the list. Can be used with vertical and horizontal RecyclerViews. You can style it or even use a custom layout and animations for your fast scroll handle and bubble.

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Minimal working example

In your layout file: ```xml

<com.futuremind.recyclerviewfastscroll.fastscroller android:id="@+id/fastscroll" android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_alignparentright="true"></com.futuremind.recyclerviewfastscroll.fastscroller>


In Activity/Fragment: ```java recyclerView = (RecyclerView) findViewById(; fastScroller = (FastScroller) findViewById(; recyclerView.setLayoutManager(new LinearLayoutManager(this)); recyclerView.setAdapter(adapter);

    //has to be called AFTER RecyclerView.setAdapter()
In your `RecyclerView.Adapter`
        public class MyAdapter ... implements SectionTitleProvider{


        public String getSectionTitle(int position) {
            //this String will be shown in a bubble for specified position
            return getItem(position).substring(0, 1);


Note: You have to populate your adapter with enough items for the

to show. I has an auto-hide mechanism in case there is nothing to scroll.

Horizontal orientation

You can use this library with horizontal LayoutManager. To do it use android:orientation="horizontal" attribute:



Styling was introduced in version 0.1.5 with a limited set of styleable attributes. More are on their way.

You can style the attributes in the xml layout:


Or directly in the code:


See the example code for more info.

Custom views

You can set custom layouts and animations for your handle and bubble, using:

        myViewProvider = new MyScrollerViewProvider();

For more information, consult

in the example code.


Download via Gradle:

compile 'com.futuremind.recyclerfastscroll:fastscroll:0.2.5'


Copyright 2015 Future Mind

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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