Android实现简单短信发送器

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.msgSend.MainActivity"
tools:ignore="MergeRootFrame" >

<TextView
android:id="@+id/tv_pleaseInputPhoneNum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/pleaseInputPhoneNum" />

<EditText
android:id="@+id/et_phoneNum"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/tv_pleaseInputPhoneNum"
android:layout_marginTop="14dp"
android:ems="10"
android:inputType="phone" />

<TextView
android:id="@+id/et_pleaseInputContent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/et_phoneNum"
android:layout_marginTop="16dp"
android:text="@string/pleaseinputcontent" />

<EditText
android:id="@+id/et_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/et_pleaseInputContent"
android:layout_marginTop="26dp"
android:layout_marginRight="10dp"
android:layout_marginLeft="10dp"
android:ems="10"
android:lines="5" >

</EditText>

<Button
android:id="@+id/bt_send"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/et_content"
android:layout_below="@+id/et_content"
android:layout_marginTop="26dp"
android:text="@string/send" />

</RelativeLayout>

package com.example.msgSend;

import java.util.List;

import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.telephony.SmsManager;
import android.text.TextUtils;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity implements OnClickListener{

/** 电话号码 */
private EditText etPhoneNum;

/** 短信内容 */
private EditText etContent;

/** 发送按钮 */
private Button btSend;

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

//获得组件
etPhoneNum = (EditText)findViewById(R.id.et_phoneNum);
etContent = (EditText)findViewById(R.id.et_content);
btSend = (Button)findViewById(R.id.bt_send);
System.out.println("获取成功");

//注册点击事件
btSend.setOnClickListener(this);
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bt_send:
sendMessage();
break;
default:
break;
}

}
//实现短信发送
private void sendMessage() {
String phoneNum = etPhoneNum.getText().toString();
String content = etContent.getText().toString();

//吐司提示
if (TextUtils.isEmpty(phoneNum) || TextUtils.isEmpty(content)) {
Toast.makeText(this, "手机号码和短信都不能为空", Toast.LENGTH_LONG).show();
return ;
}

SmsManager smsManager = SmsManager.getDefault();
//短信是有长度限制的， 直接对内容进行分割
List<String> contents = smsManager.divideMessage(content);
//发送
for (String content1 : contents) {
smsManager.sendTextMessage(phoneNum, null, content1, null, null);
}
}

}