gradle.build

plugins {
    id 'com.android.application'
}

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.0"

    defaultConfig {
        applicationId "com.learnoset.imageslider"
        minSdkVersion 19
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {

    implementation 'androidx.appcompat:appcompat:1.3.1'
    implementation 'com.google.android.material:material:1.4.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
    implementation 'com.github.smarteist:autoimageslider:1.4.0'
    implementation 'com.squareup.picasso:picasso:2.71828'
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.learnoset.imageslider">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:usesCleartextTraffic="true"
        android:theme="@style/Theme.ImageSlider">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <com.smarteist.autoimageslider.SliderView
        android:id="@+id/imageSlider"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        app:sliderAnimationDuration="600"
        app:sliderAutoCycleDirection="back_and_forth"
        app:sliderAutoCycleEnabled="true"
        app:sliderIndicatorAnimationDuration="600"
        app:sliderIndicatorGravity="center_horizontal|bottom"
        app:sliderIndicatorMargin="15dp"
        app:sliderIndicatorOrientation="horizontal"
        app:sliderIndicatorPadding="3dp"
        app:sliderIndicatorRadius="2dp"
        app:sliderIndicatorSelectedColor="#5A5A5A"
        app:sliderIndicatorUnselectedColor="#FFF"
        app:sliderScrollTimeInSec="1"
        app:sliderStartAutoCycle="true" />

</LinearLayout>

image_slider_adapter_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">

        <ImageView
            android:id="@+id/iv_auto_image_slider"
            android:layout_width="match_parent"
            android:layout_height="200dp"
            android:scaleType="fitXY" />

</RelativeLayout>

MainActivity.java

package com.learnoset.imageslider;

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.os.Bundle;

import com.smarteist.autoimageslider.IndicatorView.animation.type.IndicatorAnimationType;
import com.smarteist.autoimageslider.SliderAnimations;
import com.smarteist.autoimageslider.SliderView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private final List<String> imagesUrl = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        SliderView sliderView = findViewById(R.id.imageSlider);

        imagesUrl.add("https://res.cloudinary.com/demo/image/upload/v1312461204/sample.jpg");
        imagesUrl.add("https://www.researchgate.net/profile/Elif-Bayramoglu/publication/322918596/figure/fig3/AS:669304651530259@1536586072864/Sample-example-of-xeriscape-URL-3.jpg");
        imagesUrl.add("https://www.softwaretestinghelp.com/wp-content/qa/uploads/2018/04/web-testing.jpg");

        SliderAdapterExample adapter = new SliderAdapterExample(MainActivity.this, imagesUrl);

        sliderView.setSliderAdapter(adapter);

        sliderView.setIndicatorAnimation(IndicatorAnimationType.WORM); //set indicator animation by using IndicatorAnimationType. :WORM or THIN_WORM or COLOR or DROP or FILL or NONE or SCALE or SCALE_DOWN or SLIDE and SWAP!!
        sliderView.setSliderTransformAnimation(SliderAnimations.SIMPLETRANSFORMATION);
        sliderView.setAutoCycleDirection(SliderView.AUTO_CYCLE_DIRECTION_BACK_AND_FORTH);
        sliderView.setIndicatorSelectedColor(Color.WHITE);
        sliderView.setIndicatorUnselectedColor(Color.GRAY);
        sliderView.setScrollTimeInSec(4); //set scroll delay in seconds :
        sliderView.startAutoCycle();
    }
}

SliderAdapterExample.java

package com.learnoset.imageslider;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import com.smarteist.autoimageslider.SliderViewAdapter;
import com.squareup.picasso.Picasso;

import java.util.ArrayList;
import java.util.List;

public class SliderAdapterExample extends SliderViewAdapter<SliderAdapterExample.SliderAdapterVH> {

    private Context context;
    private List<String> mSliderItems = new ArrayList<>();

    public SliderAdapterExample(Context context, List<String> mSliderItems) {
        this.context = context;
        this.mSliderItems = mSliderItems;
    }

    @Override
    public SliderAdapterVH onCreateViewHolder(ViewGroup parent) {
        View inflate = LayoutInflater.from(parent.getContext()).inflate(R.layout.image_slider_adapter_layout, null);
        return new SliderAdapterVH(inflate);
    }

    @Override
    public void onBindViewHolder(SliderAdapterVH viewHolder, final int position) {

        Picasso.get().load(mSliderItems.get(position)).into(viewHolder.imageView);
    }

    @Override
    public int getCount() {
        //slider view count could be dynamic size
        return mSliderItems.size();
    }

    static class SliderAdapterVH extends SliderViewAdapter.ViewHolder {

        private final ImageView imageView;

        public SliderAdapterVH(View itemView) {
            super(itemView);

            imageView = itemView.findViewById(R.id.iv_auto_image_slider);
        }
    }

}