前言：

安卓四大點選事件簡介：

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

    <string name="app_name">listener</string>
    <string name="hello_world">Hello world!</string>
    <string name="action_settings">Settings</string>
    <string name="button1">匿名內部監聽事件</string>
    <string name="button2">獨立類監聽事件</string>
    <string name="button3">介面實現監聽事件</string>
    <string name="button4">按鈕實現監聽事件</string>

</resources>
 

<LinearLayout 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:orientation="vertical" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button1" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button2" />

    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button3" />

    <Button
        android:id="@+id/button4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="click"
        android:text="@string/button4" />

</LinearLayout>
 

package com.example.listener;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity implements OnClickListener{
	private Button button1;
	private Button button2;
	private Button button3;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		//匿名內部類監聽事件
		button1=(Button) findViewById(R.id.button1);
		button1.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				Log.i("tag","匿名內部類監聽事件");
				
			}
		});
		//自定義單擊事件監聽
		button2=(Button) findViewById(R.id.button2);
		button2.setOnClickListener(new myOnClicklistener(){
			public void onClick(View v) {
				super.onClick(v);
				Log.i("tag","我是按鈕的一個事件");
				
			}
		});
		button3=(Button) findViewById(R.id.button3);
		button3.setOnClickListener(this);
	}
	class myOnClicklistener implements OnClickListener{

		@Override
		public void onClick(View v) {
			Log.i("tag","都可以執行我，我是公用的");
			
		}
		
	}
	//實現OnClickListener介面，重寫onClick(View v)方法
	@Override
	public void onClick(View v) {
		Log.i("tag", "我是介面實現事件");
		
	}
	//在activity_main.xml中定義onClick屬性，重寫onClick(View v)方法、
	//這樣點選按鈕時會利用反射的方式呼叫對應Activity中的click()方法。”
	public void click(View v){
	    Log.i("tag", "我是按鈕實現事件");
	}
}