Android Display Toast on Button Click

Let's see a simple example to display a Toast Message in Android Programming. We have an Activity class called MainActivity.java and the corresponding layout XML file called activity_main.xml with a Button, on click of the button we display the Toast Message!

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.code2care.toast.MainActivity" >

    <Button
        android:id="@+id/click"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:onClick="displayToast"
        android:text="Display Toast" />

</RelativeLayout>

package com.code2care.toast;

/**
 * 
 * This is a simple example to display a 
 * toast message in Android when a button
 * is being pressed.
 * 
 */
		
		
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.View;
import android.widget.Toast;


public class MainActivity extends ActionBarActivity {

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


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

     
    //Display toast on button click
    public void displayToast(View view) {
    	
    	Toast.makeText(MainActivity.this, "Hello Toast Message!", Toast.LENGTH_LONG).show();
    
    }
}

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