Slip 22 - D) Create an Android Application that Demonstrate GridView and Onclick of Item Display the Toast.

Solution:

Xml file:

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout 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/gridView1"

        android:numColumns="3"

        android:gravity="center"

        android:columnWidth="50dp"

        android:stretchMode="columnWidth"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent" >

    </GridView>

</RelativeLayout>

Main activity file:

package com.example.grid_view;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.GridView;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends Activity {

    GridView gridView;

    static final String[] numbers = new String[] {

            "Monday", "Tue", "Wed","Thur","Fri",

            "Sat", "Sun",

            "holiday","week",};

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        gridView = (GridView) findViewById(R.id.gridView1);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,

                android.R.layout.simple_list_item_1, numbers);

        gridView.setAdapter(adapter);

        gridView.setOnItemClickListener(new OnItemClickListener() {

            @Override

            public void onItemClick(AdapterView<?> parent, View view, int position,long id) {

                Toast.makeText(getApplicationContext(),((TextView) view).getText(), Toast.LENGTH_LONG).show();

            }

        });

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.activity_main, menu);

        return true;

    }

}