Here's a simple Android Java program demonstrating the usage of GridView:
1. *Layout XML (activity_main.xml):*
xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="16dp"
tools:context=".MainActivity">
<!-- GridView to display items -->
<GridView
android:id="@+id/gridView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:numColumns="3" />
</LinearLayout>
2. *Java Code (MainActivity.java):*
java
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import androidx.appcompat.app.AppCompatActivity;
import java.util.ArrayList;
import java.util.Arrays;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initialize GridView
GridView gridView = findViewById(R.id.gridView);
// Create an ArrayList of items to display in the GridView
ArrayList<String> itemsList = new ArrayList<>(Arrays.asList(
"Item 1", "Item 2", "Item 3", "Item 4", "Item 5",
"Item 6", "Item 7", "Item 8", "Item 9", "Item 10"
));
// Create an ArrayAdapter to populate the GridView with items
ArrayAdapter<String> adapter = new ArrayAdapter<>(
this,
android.R.layout.simple_list_item_1,
itemsList
);
// Set the adapter for the GridView
gridView.setAdapter(adapter);
}
This program creates a simple layout with a GridView that displays a list of items. The GridView is
populated using an ArrayAdapter with a list of items. The layout XML specifies that the GridView should
display its items in 3 columns (android:numColumns="3").a
