android Button按鈕的用法

java源檔案

package com.lzy.ButtonTestR;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

public class MainActivity extends Activity {

    public Button btn1=null;

    public Button btn2=null;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        btn2=(Button)findViewById(R.id.button2);

        btn2.setOnClickListener(listener);

        btn1=(Button)findViewById(R.id.button1);

        btn1.setOnClickListener(listener);

       

        

    }

    private OnClickListener listener =new OnClickListener()

 {

  

  @Override

  public void onClick(View v)

  {

   // TODO Auto-generated method stub

   Button btn=(Button)v;

   switch (btn.getId())

   {

    case R.id.button1:

     Toast.makeText(MainActivity.this, "按鈕1被單擊", Toast.LENGTH_LONG).show();

     break;

    case R.id.button2:

     Toast.makeText(MainActivity.this, "按鈕2被單擊", Toast.LENGTH_LONG).show();

     break;

    default:

     break;

   }

   

  }

 };

}

main.xml--

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

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

 android:orientation="vertical" android:layout_width="fill_parent"

 android:layout_height="fill_parent">

 <TextView android:layout_width="fill_parent"

  android:layout_height="wrap_content" android:text="@string/hello" />

  

 <Button android:text="Button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/button1" /><Button android:id="@+id/button2" android:layout_width="150dp" android:layout_height="wrap_content" android:text="Button2"></Button>

 

</LinearLayout>

eclipse 雖然能寫各種程式，但感覺還是不夠智能，bug較多。和vs沒法比啊，不過沒辦法，還的適應啊。