Android中button兑现onclicklistener事件的两种方法

Android中button实现onclicklistener事件的两种方法

package com.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;@Overrideprotected 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() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub}});}private OnClickListener listener = new OnClickListener(){@Overridepublic void onClick(View view) {}};}