<?xml version=”1.0″ encoding=”utf-8″?>
<AbsoluteLayout
android:layout_width=“fill_parent”
android:layout_height=“fill_parent”
xmlns:android=“http://schemas.android.com/apk/res/android”
>
<TextView
android:layout_width=“wrap_content”
android:layout_height=“wrap_content”
android:text=“收件人:”
android:textSize=“16sp”
android:layout_x=“0px”
android:layout_y=“12px”
>
</TextView>
<EditText
android:id=“@+id/myEditText1″
android:layout_width=“fill_parent”
android:layout_height=“wrap_content”
android:text=“”
android:textSize=“18sp”
android:layout_x=“60px”
android:layout_y=“2px”
>
</EditText>
<EditText
android:id=“@+id/myEditText2″
android:layout_width=“fill_parent”
android:layout_height=“223px”
android:text=“”
android:textSize=“18sp”
android:layout_x=“0px”
android:layout_y=“52px”
>
</EditText>
<Button
android:id=“@+id/myButton1″
android:layout_width=“162px”
android:layout_height=“wrap_content”
android:text=“发送”
android:layout_x=“80px”
android:layout_y=“300px”
>
</Button>
</AbsoluteLayout>

package com.sighlife.smsDemo; 

import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.gsm.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class SMSDemo extends Activity {

private Button mButton1;
private EditText mEditText1;
private EditText mEditText2;

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

// 获取资源
mEditText1 = (EditText) findViewById(R.id.myEditText1);
mEditText2 = (EditText) findViewById(R.id.myEditText2);
mButton1 = (Button) findViewById(R.id.myButton1);
// 发送短信的响应
mButton1.setOnClickListener(new Button.OnClickListener() {

public void onClick(View v) {
// 获取发送地址和发送内容
String messageAddress = mEditText1.getText().toString();
String messageContent = mEditText2.getText().toString();

// 构建一取得default instance的SmsManager对象

SmsManager smsManager = SmsManager.getDefault();
// 检查输入内容是否为空,这里为了简单就没有判断是否是号码,短信内容长度的限制也没有做
if (messageAddress.trim().length() != 0
&& messageContent.trim().length() != 0) {
try {
PendingIntent pintent = PendingIntent.getBroadcast(
SMSDemo.this, 0, new Intent(), 0);
smsManager.sendTextMessage(messageAddress, null,
messageContent, pintent, null);

} catch (Exception e) {
e.printStackTrace();
}
// 提示发送成功
Toast.makeText(SMSDemo.this, “发送成功”, Toast.LENGTH_LONG)
.show();
} else {
Toast.makeText(SMSDemo.this, “发送地址或者内容不能为空”,
Toast.LENGTH_SHORT).show();
}
}

});
}
}

<uses-permission android:name=“android.permission.SEND_SMS”></uses-permission>