A lightweight and plug-and-play indefinite pager indicator for RecyclerViews

Android Indefinite Pager Indicator

A lightweight, plug-and-play indefinite pager indicator for RecyclerViews & ViewPagers.

Android-Indefinite-Pager-Indicator

Usage

To use the IndefinitePagerIndicator, simply add the gradle dependency to your module's build.gradle file:

compile 'com.ryanjeffreybrooks:indefinitepagerindicator:1.0.8'

Min SDK supported is version 16 - Jelly Bean.

Getting Started

Attaching the indicator to a RecyclerView or Viewpager takes only one line of code. After this, the Indefinite Pager Indicator will handle everything else.

RecyclerView

Add the IndefinitePagerIndicator view to your XML file

<com.rbrooks.indefinitepagerindicator.IndefinitePagerIndicator
        android:id="@+id/recyclerview_pager_indicator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        ... 
        />

Find the view in your activity, fragment, etc.

findViewById(R.id.recyclerview_pager_indicator);

Attach the RecyclerView to your IndefinitePagerIndicator

indefinitePagerIndicator.attachToRecyclerView(recyclerView);

That's it! The IndefinitePagerIndicator will handle updating as your RecyclerView does.

ViewPager

Add the IndefinitePagerIndicator view to your XML file

<com.rbrooks.indefinitepagerindicator.IndefinitePagerIndicator
        android:id="@+id/viewpager_pager_indicator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        ... 
        />

Find the view in your activity, fragment, etc.

findViewById(R.id.viewpager_pager_indicator);

Attach the ViewPager to your IndefinitePagerIndicator

indefinitePagerIndicator.attachToViewPager(viewPager);

That's it! The IndefinitePagerIndicator will handle updating as your ViewPager does.

The position of the ViewPager can also be changed programmatically with viewPager.setCurrentItem(position) and the IndefinitePagerIndicator will update successfully.

Sample

A sample application is included in the repository. To view the sample:

Clone the repository locally

git clone git@github.com:rbro112/Android-Indefinite-Pager-Indicator.git

Build and run the sample module.

Customizing

To customize the IndefinitePagerIndicator, modify any of the following attributes in the XML code for your IndefinitePagerIndicator view.

Attribute	Explanation	Default Value	Example Code	Result
dotRadius	The radius of a dot indicator in DP.	4dp	`app:dotRadius="8dp"`
selectedDotRadius	The radius of the currently selected dot indicator in DP.	5.5dp	`app:selectedDotRadius="6dp"`
dotColor	The color of a dot indicator.	#e8e8e8	`app:dotColor="#ff0000"`
selectedDotColor	The color of the currently selected dot indicator.	#ffffff	`app:selectedDotColor="#ff0000"`
dotSeparation	The distance from edge to edge of each dot in DP.	10dp	`app:dotSeparation="16dp"`
dotCount	The number of large visible dot indicators at any time.	5	`app:dotCount="3"`
fadingDotCount	The number of dot indicators that fade towards the edge.	1	`app:fadingDotCount="2"`
supportRTL	Adds support for RTL ViewPagers (Thanks @wching!)	false	`app:supportRTL="true"`	If current layout mode is RTL, indicator will move from right to left with scrolling.