photo from res + recycler view

1)copy and paste 19 photo to res

android menifest 

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.para.photoapp3">

    <application
        android:allowBackup="true"
        android:hardwareAccelerated="false"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:largeHeap="true"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme"
        tools:ignore="GoogleAppIndexingWarning">
        <activity android:name=".FullScreenActivity"></activity>
        <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>

Main Activity

package com.para.photoapp3;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridLayout;
import android.widget.GridView;

public class MainActivity extends AppCompatActivity {

    GridView gridView;

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

    gridView=(GridView) findViewById(R.id.grid_view);
    gridView.setAdapter(new ImageAdapater(this));


    gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            Intent intent= new Intent(getApplicationContext(),FullScreenActivity.class);
            intent.putExtra("id",position);
            startActivity(intent);


        }
    });
    }
}

main activity (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">

   <GridView
       android:id="@+id/grid_view"
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       android:numColumns="3"
       android:columnWidth="90dp"
       android:horizontalSpacing="10dp"
       android:verticalSpacing="10dp"
       android:gravity="center"
       android:stretchMode="columnWidth"
       >
   </GridView>
</LinearLayout>

create a image adapter new java file

package com.para.photoapp3;

import android.content.Context;
import android.provider.ContactsContract;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;

public class ImageAdapater extends BaseAdapter {

    private Context mContext;

    public int[] imageArray ={
    R.drawable.image1,
            R.drawable.image1,
            R.drawable.image2,R.drawable.image3,R.drawable.image4,R.drawable.image5,
            R.drawable.image6,R.drawable.image7,R.drawable.image8,R.drawable.image9,
            R.drawable.image10,R.drawable.image11,R.drawable.image12,R.drawable.image13,R.drawable.image14,
            R.drawable.image15,R.drawable.image16,R.drawable.image17,R.drawable.image18,
            R.drawable.image19,


    };
    public ImageAdapater(Context mContext){
        this.mContext =mContext;
    }

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

    @Override
    public Object getItem(int position) {
        return imageArray[position];
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        ImageView imageView =new ImageView(mContext);
        imageView.setImageResource(imageArray[position]);
        imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
        imageView.setLayoutParams(new GridView.LayoutParams(340,350));
        return imageView;
    }

}

create a new activity (full screen activity)

package com.para.photoapp3;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.widget.ImageView;

public class FullScreenActivity extends AppCompatActivity {

    ImageView imageView;

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

        imageView=(ImageView) findViewById(R.id.image_view);


        getSupportActionBar().hide();
        getSupportActionBar().setTitle("Full Screen Image");

        Intent i=getIntent();
        int position =i.getExtras().getInt("id");

        ImageAdapater imageAdapater =new ImageAdapater(this);

        imageView.setImageResource(imageAdapater.imageArray[position]);

    }
}

its xml file

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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=".FullScreenActivity">
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/image_view"/>

</androidx.constraintlayout.widget.ConstraintLayout>