View Pager



MainActivity.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"
    android:background="@color/white"
    android:gravity="center"
    tools:context=".MainActivity2">

    <androidx.viewpager.widget.ViewPager
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/view_pager"/>


</LinearLayout>


MainActivity.java

public class MainActivity2 extends AppCompatActivity {

    private Button check;
    private VideoView video_view;
    private Button date_btn;
    private int year;
    private int month1;
    private int day;
    private ViewPager view_pager;
    int Image[]={R.drawable.anim1,R.drawable.anim2,R.drawable.anim3,R.drawable.anim4};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        view_pager=findViewById(R.id.view_pager);

        ViewAdapter viewAdapter=new ViewAdapter(MainActivity2.this,Image);
        view_pager.setAdapter(viewAdapter);



    }


Adapter.java

package com.example.myapplication06;

import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;

import androidx.annotation.NonNull;
import androidx.viewpager.widget.PagerAdapter;

import java.util.Objects;

public class ViewAdapter extends PagerAdapter {

    Activity activity;
    int[] image;
    public ViewAdapter(MainActivity2 mainActivity2, int[] image) {
        activity=mainActivity2;
        this.image=image;
    }

    @Override
    public int getCount() {
        return image.length;
    }

    @Override
    public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
        return view==(LinearLayout)object;
    }

    @NonNull
    @Override
    public Object instantiateItem(@NonNull ViewGroup container, int position) {

        View view= LayoutInflater.from(activity).inflate(R.layout.item,container,false);
        ImageView imageView=view.findViewById(R.id.img);
        imageView.setImageResource(image[position]);

        Objects.requireNonNull(container).addView(view);

        return view;


    }

    @Override
    public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
        container.removeView((LinearLayout) object);

    }
}


item.xml

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

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@mipmap/ic_launcher"
        android:id="@+id/img"/>

</LinearLayout>