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

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>

dependencies{
    compile 'com.github.Kshitij-Jain:IndicatorView:1.25'
}

<dependency>
    <groupId>com.github.Kshitij-Jain</groupId>
    <artifactId>IndicatorView</artifactId>
    <version>1.25</version>
</dependency>

<io.github.kshitij_jain.indicatorview.IndicatorView
            android:id="@+id/circle_indicator_view"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:layout_gravity="center"/>

IndicatorView mIndicatorView = (IndicatorView) findViewById(R.id.circle_indicator_view);
mIndicatorView.setPageIndicators(4);
mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
       @Override
       public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
       }

       @Override
       public void onPageSelected(int position) {
            mIndicatorView.setCurrentPage(position);
       }

       @Override
       public void onPageScrollStateChanged(int state) {
       }
});

 app:activeColor="@color/colorPrimary" // Set Active Indicator Color
 app:inactiveColor="@color/colorAccent" // Set Inactive Indicator Color
 app:indicatorSize="6dp" // Set Indicator Size (Default 8dp)

 mIndicatorView.setActiveIndicatorColor(R.color.colorAccent); // Set Active Indicator Color
 mIndicatorView.setInactiveIndicatorColor(R.color.colorPrimary); // Set Inactive Indicator Color

Copyright 2017 Kshitij Jain

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

    http://www.apache.org/licenses/LICENSE-2.0

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.