Android 调用发送短信的方法

<uses-permission android:name="android.permission.send_sms"/> 

uri smstouri = uri.parse("smsto:"); 
intent intent = new intent(intent.action_view,smstouri); 
intent.putextra("address","电话号码"); // 没有电话号码的话为默认的，即显示的时候是为空的 
intent.putextra("sms_body","短信内容"); // 设置发送的内容 
intent.settype("vnd.android-dir/mms-sms"); 
startactivity(intent); 

public class mainactivity extends activity { 
 
  private edittext phone ,message; 
  private button sendbtn; 
  protected void oncreate(bundle savedinstancestate) { 
    super.oncreate(savedinstancestate); 
    setcontentview(r.layout.activity_main); 
     
    phone = (edittext) findviewbyid(r.id.phone); 
    message = (edittext) findviewbyid(r.id.message); 
    sendbtn = (button) findviewbyid(r.id.sendbtn); 
     
    //点击发送短信 
    sendbtn.setonclicklistener(new onclicklistener() { 
       
      public void onclick(view v) { 
        string p = phone.gettext().tostring(); 
        string m = message.gettext().tostring(); 
        uri smstouri = uri.parse("smsto:"); // 解析地址 
        intent intent = new intent(intent.action_view,smstouri); 
        intent.putextra("address",p); // 没有电话号码的话为默认的，即显示的时候是为空的 
        intent.putextra("sms_body",m); // 设置发送的内容 
        intent.settype("vnd.android-dir/mms-sms"); 
        startactivity(intent); 
      } 
    }); 
  } 
} 

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
  package="com.example.message" 
  android:versioncode="1" 
  android:versionname="1.0" > 
 
  <uses-sdk 
    android:minsdkversion="10" 
    android:targetsdkversion="10" /> 
 
  <application 
    android:allowbackup="true" 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@style/apptheme" > 
    <activity 
      android:name="com.example.message.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> 
 
  <!-- 发送短信权限 --> 
  <uses-permission android:name="android.permission.send_sms" /> 
 
</manifest> 

<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=".mainactivity" > 
 
  <edittext 
    android:id="@+id/phone" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignparentleft="true" 
    android:layout_alignparentright="true" 
    android:ems="10" 
    android:inputtype="number" > 
 
    <requestfocus /> 
  </edittext> 
 
  <button 
    android:id="@+id/sendbtn" 
    style="?android:attr/buttonstylesmall" 
    android:layout_width="150dp" 
    android:layout_height="50dp" 
    android:layout_alignparentbottom="true" 
    android:layout_centerhorizontal="true" 
    android:layout_marginbottom="28dp" 
    android:text="send" /> 
 
  <edittext 
    android:id="@+id/message" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_above="@+id/sendbtn" 
    android:layout_alignleft="@+id/phone" 
    android:layout_marginbottom="48dp" 
    android:ems="10" /> 
 
</relativelayout>