MainActivity.java

package nofieanggraeni.blogspot.com.gridviewcustom;

import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.content.Intent;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    int[] gambar = { R.drawable.android, R.drawable.apple, R.drawable.windows, R.drawable.facebook, R.drawable.instagram,
            R.drawable.twitter, R.drawable.whatsapp, R.drawable.telegram, R.drawable.messenger,
            R.drawable.tiktok, R.drawable.line, R.drawable.youtube, R.drawable.opera, R.drawable.firefox };
    String[] namanya = {"Android", "Apple", "Windows", "Facebook", "Instagram", "Twitter", "WhatsApp",
            "Telegram", "Messenger", "TikTok", "Line", "YouTube", "Opera", "FireFox" };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        GridView gridView = findViewById(R.id.gridView);
        GridAdapter gridAdapter = new GridAdapter(this, gambar, namanya);
        gridView.setAdapter(gridAdapter);
        gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Intent zoomActivity = new Intent(getApplicationContext(), ZoomActivity.class);
                zoomActivity.putExtra("gambar", gambar[position]);
                zoomActivity.putExtra("namanya", namanya[position]);
                startActivity(zoomActivity);
            }
        });

    }
}