GridView Example

This tutorial shows how to display a String list in a GridView.

Step 1: Create a new project with name GridView and package name com.myexample.gridview. Select File/New/New Project. Fill the forms and click “Finish” button.

Step 2: Open res/layout/xml (or) main.xml and add following code. Here we add a GridView mainGridView1.

 <?xml version="1.0" encoding="utf-8"?>
<LinearLayout
	xmlns:android="http://schemas.android.com/apk/res/android"
	xmlns:tools="http://schemas.android.com/tools"
	xmlns:ads="http://schemas.android.com/apk/res-auto"
	tools:context=".MainActivity"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:orientation="vertical">

	<GridView
		android:layout_height="wrap_content"
		android:layout_width="wrap_content"
		android:numColumns="3"
		android:id="@+id/mainGridView1"/>

</LinearLayout>

Step 3: Open app/src/main/java/package and open MainActivity.java. Add following code in it. Here we create a String list and set an adapter to display this String list in GridView.

package com.myexample.gridview;

import android.app.*;
import android.os.*;
import android.view.*;
import android.view.View.*;
import android.widget.*;
import java.util.*;

public class MainActivity extends Activity {

	private GridView gridview1;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		
		gridview1 = (GridView) findViewById(R.id.mainGridView1);
		
		final String[] stringlist = {"item 1", "item 2", "item 3",
		"item 4", "item 5" , "item 6", "item 7", "item 8", "item 8"};
		
		gridview1.setOnItemClickListener(new GridView.OnItemClickListener(){
			@Override
			public void onItemClick(AdapterView<?> p1, View p2, int p3, long p4){
				Toast.makeText(getApplicationContext(), stringlist[p3], Toast.LENGTH_LONG).show();
			}
		});
		
		ArrayAdapter<String> adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, stringlist);
		gridview1.setAdapter(adapter);
	}
	
}

Output:
Now run the app. The app will display String list in a GridView.