How to use fastScrollEnabled in RecyclerView?

Question

I am new to RecyclerView and I want to implement the fast scroll feature in RecyclerView like google contact application and search on the internet and i found that now Andr

Answer 1

With Support Library 26, we can easily enable fast scrolling for RecyclerView. Let’s get to it!

Let’s go over each property one by one :

1. fastScrollEnabled : boolean value to enable the fast scrolling. Setting this as true will require that we provide the following four properties.
2. fastScrollHorizontalThumbDrawable : A StateListDrawable that will be used to draw the thumb which will be draggable across the horizontal axis.
3. fastScrollHorizontalTrackDrawable : A StateListDrawable that will be used to draw the line that will represent the scrollbar on horizontal axis.
4. fastScrollVerticalThumbDrawable : A StateListDrawable that will be used to draw the thumb which will be draggable on vertical axis.
5. fastScrollVerticalTrackDrawable : A StateListDrawable that will be used to draw the line that will represent the scrollbar on vertical axis.

add in build.gradle

    dependencies {
    ....
    compile 'com.android.support:design:26.0.1'
    compile 'com.android.support:recyclerview-v7:26.0.1'
    ....
}

Since Support Library 26 has now been moved to Google’s maven repository, let’s include that in our project level build.gradle

allprojects {
    repositories {
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
}

activity_main.xml

add below four xml file in your drawable folder,

line_drawable.xml

line.xml

thumb_drawable.xml

thumb.xml