CircleIndicator

A lightweight indicator like in nexus 5 launcher

<img src="/screenshot.gif" width="300">

Gradle

AndroidX

dependencies {
    implementation 'me.relex:circleindicator:2.1.6'
}

Android Support Library

dependencies {
    implementation 'me.relex:circleindicator:1.3.2'
}

Usage

| Class | Widget | | --------------------------------------------- | ----------------------------- | | me.relex.circleindicator.CircleIndicator | ViewPager | | me.relex.circleindicator.CircleIndicator2 | RecyclerView | | me.relex.circleindicator.CircleIndicator3 | ViewPager2 (AndroidX) |

ViewPager (CircleIndicator)

ViewPager viewpager = (ViewPager) view.findViewById(R.id.viewpager);
viewpager.setAdapter(adapter);

CircleIndicator indicator = (CircleIndicator) view.findViewById(R.id.indicator);
indicator.setViewPager(viewpager);

// optional
adapter.registerDataSetObserver(indicator.getDataSetObserver());

RecyclerView (CircleIndicator2)

RecyclerView recyclerView = view.findViewById(R.id.recycler_view);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setAdapter(adapter);

PagerSnapHelper pagerSnapHelper = new PagerSnapHelper();
pagerSnapHelper.attachToRecyclerView(recyclerView);

CircleIndicator2 indicator = view.findViewById(R.id.indicator);
indicator.attachToRecyclerView(recyclerView, pagerSnapHelper);

// optional
adapter.registerAdapterDataObserver(indicator.getAdapterDataObserver());

ViewPager2 (CircleIndicator3)

ViewPager2 viewpager = view.findViewById(R.id.viewpager);
viewpager.setAdapter(mAdapter);

CircleIndicator3 indicator = view.findViewById(R.id.indicator);
indicator.setViewPager(viewpager);

// optional
adapter.registerAdapterDataObserver(indicator.getAdapterDataObserver());

Manual control

CircleIndicator indicator = view.findViewById(R.id.indicator);
indicator.createIndicators(5,0);

indicator.animatePageSelected(2)

XML Properties

<me.relex.circleindicator.CircleIndicator
	android:id="@+id/indicator"
	android:layout_width="match_parent"
	android:layout_height="48dp"/>

| Properties | Default Value | | ----------------------------- | ----------------------------- | | app:ci_width | 5dp | | app:ci_height | 5dp | | app:ci_margin | 5dp | | app:ci_drawable | R.drawable.white_radius | | app:ci_drawable_unselected | R.drawable.white_radius | | app:ci_animator | R.animator.scale_with_alpha | | app:ci_animator_reverse | 0 | | app:ci_orientation | horizontal | | app:ci_gravity | center |