如何在android中发送多条短信？

我写了一个发送短信的程序。我的问题是，当我想给我的朋友发5条短信，而他的手机被关闭时，之后当他打开手机时，发送只接收最后一条短信。 我的代码如下所示：

Intent newIntent_sent = new Intent(AppStatics.INTENT_SENT_SMS+this_messageUri);
        Log.d("uri   sending setting", this_messageUri.getPath());

        newIntent_sent.putExtra(AppStatics.INTENT_SENT_ID,this_messageUri.getPath());

        PendingIntent newsentPI  = PendingIntent.getBroadcast(getBaseContext(), 0,newIntent_sent,PendingIntent.FLAG_ONE_SHOT);

        registerReceiver (new BroadcastReceiver() {

            @Override
            public void onReceive(Context arg0, Intent arg1) {
                // TODO Auto-generated method stub

                String uri =  arg1.getExtras().getString(AppStatics.INTENT_SENT_ID);

                Log.d("Uri Sending", uri);

                Send_Result sr = new Send_Result(Uri.parse(uri), getResultCode() );

                Thread tr = new Thread(sr);
                tr.start();

                SendMessegeService.this.unregisterReceiver(this); 
            }

        }, new IntentFilter(AppStatics.INTENT_SENT_SMS+this_messageUri));

        sentPIs.add(newsentPI);


Intent newIntent_deliver = new Intent(AppStatics.INTENT_DELIVERED_SMS+this_messageUri);

        Log.d("Uri deliver Setting", this_messageUri.getPath());

        newIntent_deliver.putExtra(AppStatics.INTENT_DELIVERE_ID,this_messageUri.getPath());

        PendingIntent deliverPI = PendingIntent.getBroadcast(
                getBaseContext(), 0, newIntent_deliver,0);

        registerReceiver(new BroadcastReceiver() {

            @Override
            public void onReceive(Context arg0, Intent arg1) {
                // TODO Auto-generated method stub

                String uri =  arg1.getExtras().getString(AppStatics.INTENT_DELIVERE_ID);
                Delivery_Result dr = new Delivery_Result(Uri.parse(uri), getResultCode());


                Log.d("Uri deliver", uri);

                Thread tr = new Thread(dr);
                tr.start();
            }
        },new IntentFilter(AppStatics.INTENT_DELIVERED_SMS+this_messageUri));

        deliverPIs.add(deliverPI);

这是我的线程类：：

public class Send_Result implements Runnable
{
    Uri messageUri =null;

    int resultCode ;

    String toastMessage ="";


    public Send_Result(Uri MessageUri,int resultCode)
    {
        this.messageUri = MessageUri;
        this.resultCode=resultCode;
    }

    @Override
    public void run() {
        // TODO Auto-generated method stub
        ContentValues values = new ContentValues();
        switch (resultCode) 
        {
            case Activity.RESULT_OK:
                values.put(DataBaseStatics.STATUS,
                        DataBaseStatics.STATUS_PENDING);

                toastMessage = getBaseContext().getResources().getString(R.string.MessageIsSending_Title);

                break;

            case Activity.RESULT_CANCELED:
                values.put(DataBaseStatics.STATUS,
                        DataBaseStatics.STATUS_FAILED);
                toastMessage = getBaseContext().getResources().getString(R.string.MessageSendingFailed_Title);
                break;

            default:
                values.put(DataBaseStatics.STATUS,
                        DataBaseStatics.STATUS_FAILED);
                toastMessage = getBaseContext().getResources().getString(R.string.MessageSendingFailed_Title);
                break;

        }
        getBaseContext().getContentResolver().update(
                this_messageUri, values, null, null);

    }

}

public class Delivery_Result implements Runnable
{
    Uri messageUri =null;

    int resultCode ;

    String toastMessage;

    public Delivery_Result(Uri MessageUri,int resultCode)
    {
        this.messageUri = MessageUri;
        this.resultCode=resultCode;
    }

    @Override
    public void run() {
        // TODO Auto-generated method stub
        ContentValues values = new ContentValues();
        switch (resultCode) 
        {
            case Activity.RESULT_OK :
                values.put(DataBaseStatics.STATUS, DataBaseStatics.STATUS_COMPLETE);

                toastMessage=getBaseContext().getResources().getString(R.string.MessageDeliverd_Title);
                break;

            default :
                values.put(DataBaseStatics.STATUS, DataBaseStatics.STATUS_FAILED);
                toastMessage=getBaseContext().getResources().getString(R.string.MessgeDeliverFailed_Title);
                break;
        }

        getBaseContext().getContentResolver().update(this_messageUri, values, null, null);


    }

}

这是我的发送消息方法：

public void SendMessage(String sendingNumber , int index)
{
    String sNumber = sendingNumber;
    PendingIntent sentPI = sentPIs.get(index);


    PendingIntent deliverPI = deliverPIs.get(index);

    SmsManager sms =SmsManager.getDefault();
    ArrayList<String> msgparts = sms.divideMessage(message);
    if (msgparts.size()<=1)
    {
        sms.sendTextMessage(sNumber, null, message, sentPI, deliverPI);
    }
    else
    {
        sms.sendMultipartTextMessage(sNumber, null, msgparts, sentPIs, deliverPIs);
    }

}

public void SendMessage（字符串sendingNumber，int索引）
{
字符串sNumber=发送编号；
pendingent sentPI=sentPIs.get（索引）；
PendingEvent deliverPI=deliverPIs.get（索引）；
SmsManager sms=SmsManager.getDefault（）；
ArrayList msgparts=sms.divideMessage（message）；
如果（msgparts.size（））您发布的代码不完整且有点不清楚，但如果它在您朋友的手机打开时起作用，则说明他们的设备/网络有问题。@Mike M:tanks供您评论。但我使用“手机关机”一词让我的目标更清楚。但是如果电话是开着的，而您使用此代码并发送多条短信，以致于仍然没有收到以前的邮件，则会出现此问题。@mike M：让我知道代码的哪一部分不清楚，以便为您解释。