Android Project: Toast With OnClick (For Beginers)

Android Project: Toast With OnClick (For Beginers):

Android Project: Toast With OnClick (For Beginers):

Activity_main.xml

<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=".MainActivity" >

    <LinearLayout

        android:id="@+id/linearLayout1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_alignParentTop="true"

        android:layout_marginLeft="100dp"

        android:layout_marginTop="96dp"

        android:orientation="vertical" >

    </LinearLayout>

    <Button

        android:id="@+id/etTestBtn"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_below="@+id/linearLayout1"

        android:layout_centerHorizontal="true"

        android:onClick="test"

        android:layout_marginTop="20dp"

        android:text="Test" />

</RelativeLayout>

MainActivity.java

package com.sattar.uicontroldemo;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener {

       Button btnTest;

      

       @Override

       protected void onCreate(Bundle savedInstanceState) {

              super.onCreate(savedInstanceState);

              setContentView(R.layout.activity_main);

              btnTest=(Button) findViewById(R.id.etTestBtn);

              btnTest.setOnClickListener(this);

       }

       public void test(View v) {

              Toast.makeText(getApplicationContext(), "test button clicked",

                           Toast.LENGTH_LONG).show();

       }

       @Override

       public void onClick(View arg0) {

              Toast.makeText(getApplicationContext(), "test button clicked",

                           Toast.LENGTH_LONG).show();

       }

}