[Android] 이벤트의 여러가지 방법 2

MainActivity.java


package com.example.study;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {
	private Button btn;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn=(Button)findViewById(R.id.btn);
        btn.setOnClickListener(ClickListener);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
    private OnClickListener ClickListener = new OnClickListener(){

		public void onClick(View v) {
			// TODO Auto-generated method stub
			if(v.getId()==R.id.btn)
			{
				Toast.makeText(MainActivity.this, "되려나..?", Toast.LENGTH_SHORT).show();
			}
		}
    	
    };
}