短信发送器（1.0版）

<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.swust.msg.MainActivity" >

    <!-- 输入为phone类型：0~9和#* -->

    <EditText
        android:id="@+id/et_phone"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="@string/tishiPhone"
        android:inputType="phone" />
    <!-- 输入限制为五行，输入框中的内容顶部对齐 -->

    <EditText
        android:id="@+id/et_msg"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="top"
        android:hint="@string/tishiMsg"
        android:lines="5" />

    <Button
        android:id="@+id/btnSend"
        android:layout_width="119dp"
        android:layout_height="64dp"
        android:text="发送" 
        android:onClick="sendMsg"/>

</LinearLayout>

package com.swust.msg;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void sendMsg(View v){
        
    //获取到用户输入的号码和内容
        EditText et_phone = (EditText)findViewById(R.id.et_phone);
        EditText et_msg = (EditText)findViewById(R.id.et_msg);
        
        String phone=et_phone.getText().toString();
        String msg=et_msg.getText().toString();
    //发送短信
        //1.获取短息管理器
        SmsManager sm = SmsManager.getDefault();
        //2.发送短信
        /*第二个形参为短息服务中心，为空即可
         *第三个形参为发送广播，为空即可
         *第4个形参为接受广播，为空即可*/
        //sm.sendTextMessage(phone, null, msg, null, null);
        //2.切割短信，把长短信分成若干个小短信
        ArrayList<String> smss= sm.divideMessage(msg);
        
        //3.for循环把集合中所有短信全部发出去
        for(String string:smss){
            sm.sendTextMessage(phone, null, string, null, null);
        }
    }
}

  <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="19" />
    <uses-permission android:name="android.permission.SEND_SMS"/>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

package com.swust.msg;

import java.util.ArrayList;

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

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void sendMsg(View v){
        
    //获取到用户输入的号码和内容
        EditText et_phone = (EditText)findViewById(R.id.et_phone);
        EditText et_msg = (EditText)findViewById(R.id.et_msg);
        
        String phone=et_phone.getText().toString();
        String msg=et_msg.getText().toString();
    //发送短信
        //1.获取短息管理器
        SmsManager sm = SmsManager.getDefault();
        //2.发送短信
        /*第二个形参为短息服务中心，为空即可
         *第三个形参为发送广播，为空即可
         *第4个形参为接受广播，为空即可*/
        //sm.sendTextMessage(phone, null, msg, null, null);
        //2.切割短信，把长短信分成若干个小短信
        ArrayList<String> smss= sm.divideMessage(msg);
        
        //3.for循环把集合中所有短信全部发出去
        for(String string:smss){
            sm.sendTextMessage(phone, null, string, null, null);
        }
        /*首先判读电话长度为11或者6（测试我们学校)并且内容不为空，将信息发送出去；发送成功或失败后返回提示
        缺点是，没有使用切割短信循环发功能，直接将信息（msg)发送了*/
        if( (phone.trim().length()==11||phone.trim().length()==6) &&msg.trim().length()!=0){  
                        PendingIntent pintent=PendingIntent.getBroadcast(MainActivity.this, 0, new Intent(), 0);  
                        sm.sendTextMessage(phone, null, msg, pintent, null);  
                        Toast.makeText(MainActivity.this, "发送成功", Toast.LENGTH_SHORT).show();  
                        }else{  
                        Toast.makeText(MainActivity.this, "发送失败", Toast.LENGTH_SHORT).show();  
                            }  
    }
}