Android Toast

- Main_Activity.java

package com.zeronine;

import com.zeronine.main.R;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.Toast;

public class Main_Activity extends Activity{

protected void onCreate( Bundle savedInstanceState )

{

super.onCreate( savedInstanceState );

setContentView( R.layout.activity_main );

create();

}

private void create()

{

createBtn();

}

private Button btn;

private void createBtn()

{

btn = (Button) findViewById( R.id.button1 );

btn.setOnClickListener( new View.OnClickListener() {

public void onClick(View v) {

showToast( "버튼을 눌렀다." );

}

});

}

private void showToast( String message )

{

Toast.makeText( getApplicationContext(), message, Toast.LENGTH_LONG ).show();

}

}

- activity_main.xml

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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/imageView1"

        android:layout_below="@+id/imageView1"

        android:layout_marginTop="32dp"

        android:text="버튼" />

</LinearLayout>