简单实现android短信发送器

<RelativeLayout 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: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.example.sendinfo.MainActivity" >  <TextView    android:id="@+id/tv_input_number"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_alignParentLeft="true"    android:layout_alignParentTop="true"    android:text="@string/place_input_number"    android:textSize="20px" />  <EditText    android:id="@+id/et_number"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:layout_below="@id/tv_input_number"       android:inputType="phone" >  </EditText>  <TextView    android:id="@+id/tv_input_content"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:layout_alignParentLeft="true"    android:layout_below="@id/et_number"    android:text="请输入正文"    android:textSize="20px"    android:textColor="#ff2800" />  <EditText    android:lines="5"    android:id="@+id/et_input_content"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:layout_alignParentLeft="true"    android:layout_centerVertical="true"     android:layout_below="@id/tv_input_content"     android:inputType="textMultiLine" />  <Button    android:id="@+id/bt_send"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_alignParentLeft="true"    android:layout_below="@id/et_input_content"    android:text="发送" /></RelativeLayout>

package com.example.sendinfo;import java.util.ArrayList;import java.util.Iterator;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 {  //获取数据的对象  private EditText et_number;  private EditText et_content;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    et_number = (EditText) findViewById(R.id.et_number);    et_content = (EditText) findViewById(R.id.et_input_content);    Button bt_send = (Button) findViewById(R.id.bt_send);    bt_send.setOnClickListener(this);  }  @Override  public void onClick(View v) {    switch (v.getId()) {    case R.id.bt_send:      //获取用户输入的数据      String content = et_content.getText().toString().trim();      String number = et_number.getText().toString().trim();      if(TextUtils.isEmpty(content) || TextUtils.isEmpty(number)){        Toast.makeText(this, "电话号码或者内容不能为空", Toast.LENGTH_SHORT).show();        return;      }else{               //发送短信API   ：得到一个信息管理器 实例        SmsManager smsManager = SmsManager.getDefault();        //短信大于70字符时，则将短信拆分成多条发送        ArrayList<String> contents = smsManager.divideMessage(content);        for(String string : contents) {          smsManager.sendTextMessage(number, null, string, null, null);        }                      }            break;    default:      break;    }  }}