Button实现OnClickListener事件的两种方法

package com.away.demos;

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

public class GetScreenActivity extends Activity {

	private Button firstBtn = null;
	private Button secBtn = null;

	@Override
	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		firstBtn = (Button) findViewById(R.id.firstBtn);
		secBtn = (Button) findViewById(R.id.secBtn);

		firstBtn.setOnClickListener(listener);

		secBtn.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub

			}
		});
	}

	private OnClickListener listener = new OnClickListener(){

		@Override
		public void onClick(View view) {

		}
	};

}