/ RecyclerView

An Instagram like page indicator compatible with RecyclerView and ViewPager

An Instagram like page indicator compatible with RecyclerView and ViewPager

Page Indicator

An Instagram like page indicator compatible with RecyclerView and ViewPager.

pageindicator

Setup

Step 1. Add the JitPack repository to your build file

allprojects {
  repositories {
    maven { url 'https://jitpack.io' }
  }
}

Step 2. Add the dependency

dependencies {
  compile 'com.github.chahine:pageindicator:<latest-version>'
}

Usage

Add the PageIndicator to your XML file:

  <com.chahinem.pageindicator.PageIndicator
      android:id="@+id/pageIndicator"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      />

RecyclerView

  pageIndicator.attachTo(recyclerView)

By default, attaching to a RecyclerView will end up updating the pageIndicator when the most visible item position changes and expect the RecyclerView items to have the same width.
If you would like to customize this behavior, add a scroll listener to your RecyclerView and use PageIndicator::swipeNext and PageIndicator::swipePrevious; and set the pageIndicator's count

View Pager

  pageIndicator.attachTo(viewPager)

Manual

  pageIndicator.swipePrevious()
  pageIndicator.swipeNext()

Customization

Attribute Note Default
piDotSpacing Spacing between dots 3dp
piDotBound Range in which the selected dot remains 40dp
piSize[1-6] Size from smallest to largest dot .5dp - 6dp
piAnimDuration Duration of animation* in ms 200
piAnimInterpolator Animation interpolator* decelerate
piDefaultColor Default unselected dot color #B2B2B2
piSelectedColor Selected dot color #3897F0

*Note: the animation duration and interpolator are shared between the scroll animation and dot scaling animation.

GitHub