Slider in Android application

hello friends
today we are going to learn about the slider in android. below code is used to create a slider in android. first, we need to add view pager in our android XML file and then we need to create one image adapter for view pager and then we can slide image easily in android. let's take a simple example.

activity_main.xml

 <android.support.v4.view.ViewPager
        android:id="@+id/slider"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_marginTop="20dp"
        android:layout_width="match_parent"
        android:layout_height="500dp" />
       
       
MainActivity.java


public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_main);

        ViewPager slider = (ViewPager) findViewById(R.id.slider);
        ImageAdapterForSlider imageadapter = new ImageAdapterForSlider(MainActivity.this);
        slider.setAdapter(imageadapter);
    }
    public class ImageAdapterForSlider extends PagerAdapter {
        Context Context;
        ImageAdapterForSlider(Context context) {
            this.Context = context;
        }
        @Override
        public boolean isViewFromObject(View view, Object object) {
            return view == ((ImageView) object);
        }
        private int[] sliderImageId = new int[]{
                R.drawable.image1, R.drawable.image2, R.drawable.image3, R.drawable.image4, R.drawable.image5,
        };
        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            ImageView img = new ImageView(Context);
            img.setScaleType(ImageView.ScaleType.CENTER_CROP);
            img.setImageResource(sliderImageId[position]);
            ((ViewPager) container).addView(img, 0);
            return img;
        }
        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            ((ViewPager) container).removeView((ImageView) object);
        }
        @Override
        public int getCount() {
            return sliderImageId.length;
        }
    }
}