android短信管理器SmsManager实例详解

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

package com.android.xiong.groupsend; 
 
import java.util.arraylist; 
import java.util.list; 
 
import android.app.activity; 
import android.app.alertdialog; 
import android.app.pendingintent; 
import android.content.dialoginterface; 
import android.content.intent; 
import android.database.cursor; 
import android.os.bundle; 
import android.provider.contactscontract; 
import android.telephony.smsmanager; 
import android.view.menu; 
import android.view.view; 
import android.view.viewgroup; 
import android.view.view.onclicklistener; 
import android.widget.baseadapter; 
import android.widget.button; 
import android.widget.checkbox; 
import android.widget.edittext; 
import android.widget.listview; 
import android.widget.toast; 
 
public class mainactivity extends activity { 
 
  private button bt1, bt2; 
  private edittext ed1, ed2; 
  private smsmanager smanger; 
  list<string> sendlist = new arraylist<string>(); 
 
  @override 
  protected void oncreate(bundle savedinstancestate) { 
    super.oncreate(savedinstancestate); 
    setcontentview(r.layout.activity_main); 
    bt1 = (button) findviewbyid(r.id.bt1); 
    bt2 = (button) findviewbyid(r.id.bt2); 
    ed1 = (edittext) findviewbyid(r.id.ed1); 
    ed2 = (edittext) findviewbyid(r.id.ed2); 
    // 获取smsmanger 
    smanger = smsmanager.getdefault(); 
    bt1.setonclicklistener(new onclicklistener() { 
 
      @override 
      public void onclick(view v) { 
        for (string send : sendlist) { 
          // 创建pendintent对象 
          pendingintent ped = pendingintent.getactivity( 
              mainactivity.this, 0, new intent(), 0); 
          // 发送信息 
          smanger.sendtextmessage(send, null, ed2.gettext() 
              .tostring(), ped, null); 
        } 
        // 提示消息发送完毕 
        toast.maketext(mainactivity.this, "短信群发完", toast.length_long) 
            .show(); 
      } 
    }); 
    bt2.setonclicklistener(new onclicklistener() { 
 
      @override 
      public void onclick(view v) { 
        // 查看联系人的电话号码 
        final cursor cursor = getcontentresolver().query( 
            contactscontract.commondatakinds.phone.content_uri, 
            null, null, null, null); 
        baseadapter adapter = new baseadapter() { 
 
          @override 
          public view getview(int position, view convertview, 
              viewgroup parent) { 
            cursor.movetoposition(position); 
            checkbox rb = new checkbox(mainactivity.this); 
            // 获取联系人的电话号码 并去掉中间的中画、空格 
            string number = cursor 
                .getstring( 
                    cursor.getcolumnindex(contactscontract.commondatakinds.phone.number)) 
                .replace("-", ""); 
            rb.settext(number); 
            // 如果该号码已经加入发送人名单，默认勾选该号码 
            if (sendlist.contains(number)) { 
              rb.setchecked(true); 
            } 
            return rb; 
          } 
 
          @override 
          public long getitemid(int position) { 
            // todo auto-generated method stub 
            return position; 
          } 
 
          @override 
          public object getitem(int position) { 
            // todo auto-generated method stub 
            return position; 
          } 
 
          @override 
          public int getcount() { 
            // todo auto-generated method stub 
            return cursor.getcount(); 
          } 
        }; 
        // 加载list.xml布局文件对应的view 
        view selectview = getlayoutinflater().inflate(r.layout.item, 
            null); 
        final listview listview = (listview) selectview 
            .findviewbyid(r.id.list1); 
        listview.setadapter(adapter); 
        new alertdialog.builder(mainactivity.this).setview(selectview).setpositivebutton("确定", new dialoginterface.onclicklistener() { 
           
          @override 
          public void onclick(dialoginterface dialog, int which) { 
            //清空sendlist集合 
            sendlist.clear(); 
            //遍历listview组件的每个列表项 
            for(int i=0;i<listview.getcount();i++){ 
              checkbox checkbox=(checkbox)listview.getchildat(i); 
              //如果该列表项被勾选 
              if(checkbox.ischecked()){ 
                //添加到该列表项中 
                sendlist.add(checkbox.gettext().tostring()); 
                ed1.append(checkbox.gettext().tostring()+","); 
              } 
            } 
             
          } 
        }).show(); 
      } 
    }); 
  } 
 
  @override 
  public boolean oncreateoptionsmenu(menu menu) { 
    // inflate the menu; this adds items to the action bar if it is present. 
    getmenuinflater().inflate(r.menu.main, menu); 
    return true; 
  } 
 
} 

<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" 
  tools:context=".mainactivity" > 
   
  <edittext  
    android:id="@+id/ed1" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"/> 
  <edittext  
    android:id="@+id/ed2" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    /> 
  <button  
    android:id="@+id/bt2" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:text="获取联系人"/> 
  <button  
    android:id="@+id/bt1" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:text="发送信息"/> 
 
</linearlayout> 

<?xml version="1.0" encoding="utf-8"?> 
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android" 
  android:layout_width="match_parent" 
  android:layout_height="match_parent" 
  android:orientation="vertical" > 
 
 
  <listview 
    android:id="@+id/list1" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" > 
  </listview> 
 
</linearlayout>