Android常用UI组件 - Button

<?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"
    >
    <Button android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:text="Button1" />
    <Button android:id="@+id/button2"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:text="Button2" />
</LinearLayout>

package com.rainsong.buttondemo;

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 ActivityButton extends Activity
{
    Button btn1;
    Button btn2;
    
    OnClickListener listener1;
    OnClickListener listener2;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        listener1 = new OnClickListener() {
            public void onClick(View v) {
                Toast.makeText(ActivityButton.this, "Button1 clicked",Toast.LENGTH_SHORT).show();
            }
        };
        listener2 = new OnClickListener() {
            public void onClick(View v) {
                Toast.makeText(ActivityButton.this, "Button2 clicked",Toast.LENGTH_SHORT).show();
            }
        };

        btn1 = (Button)findViewById(R.id.button1);
        btn1.setOnClickListener(listener1);

        btn2 = (Button)findViewById(R.id.button2);
        btn2.setOnClickListener(listener2);
    }
}

Android常用UI组件 - Button

原文：http://blog.csdn.net/hantangsongming/article/details/40340025