Android短信应用程序问题

Question

我有一个奇怪的问题。我开发了发送和接收短信的android应用程序 通过一个特定的端口。 问题是收到的消息有时是空的，有时它没有传递（在某些情况下它被正确传递）。 我认为这取决于接收方的电话类型。

以下是代码：

这是发送代码：

private void sendSMS(String phoneNO, String smsMsg){

String SENT = "SMS_SENT";
String DELIVERED = "SMS_DELIVERED";
Intent intent=new Intent(SENT);
PendingIntent sentPI = PendingIntent.getBroadcast(this, 0,
            intent, 0);
Intent intent2=new Intent(DELIVERED);
PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0,
            intent2, 0);
SmsManager smsMgr=SmsManager.getDefault();
smsMgr.sendDataMessage(phoneNO, null, (short) 5001, smsMsg.getBytes(),   sentPI,deliveredPI);

  //---when the SMS has been sent---
    registerReceiver(new BroadcastReceiver(){
        @Override
        public void onReceive(Context arg0, Intent intent) {
            switch (getResultCode())
            {
                case Activity.RESULT_OK:

                    Toast.makeText(getBaseContext(), "SMS sent", 
                            Toast.LENGTH_SHORT).show();
                    break;
                case SmsManager.RESULT_ERROR_GENERIC_FAILURE:

                    Toast.makeText(getBaseContext(), "Generic failure", 
                            Toast.LENGTH_SHORT).show();
                    break;
                case SmsManager.RESULT_ERROR_NO_SERVICE:

                    Toast.makeText(getBaseContext(), "No service", 
                            Toast.LENGTH_SHORT).show();
                    break;
                case SmsManager.RESULT_ERROR_NULL_PDU:

                    Toast.makeText(getBaseContext(), "Null PDU", 
                            Toast.LENGTH_SHORT).show();
                    break;
                case SmsManager.RESULT_ERROR_RADIO_OFF:

                    Toast.makeText(getBaseContext(), "Radio off", 
                            Toast.LENGTH_SHORT).show();
                    break;
            }

        }
    }, new IntentFilter(SENT));

    //---when the SMS has been delivered---
    registerReceiver(new BroadcastReceiver(){
        @Override
        public void onReceive(Context arg0, Intent intent) {

            switch (getResultCode())
            {
                case Activity.RESULT_OK:
                    Toast.makeText(getBaseContext(), "SMS delivered", 
                            Toast.LENGTH_SHORT).show();
                    break;
                case Activity.RESULT_CANCELED:
                    Toast.makeText(getBaseContext(), "SMS not delivered", 
                            Toast.LENGTH_SHORT).show();
                    break;                        
            }
        }
    }, new IntentFilter(DELIVERED));
}

这是接收代码：

public void onReceive(Context context, Intent intent) {

    Bundle extras=intent.getExtras();
    if(extras!=null){
        Object[] smsExtra=(Object[]) extras.get(SMS_EXTRA_NAME);
        SmsDbHelper dbHelper=new SmsDbHelper(context);
        SQLiteDatabase db=dbHelper.getWritableDatabase();
        int i=0;
        for(i=0;i<smsExtra.length;++i){
            SmsMessage sms=SmsMessage.createFromPdu((byte[])smsExtra[i]);
            String message=sms.getMessageBody().toString();
            String phoneNO=sms.getOriginatingAddress();

            ContentValues values=new ContentValues();
            values.put(SmsMsgTable.COLUMN_NAME_SENDER, phoneNO);
            values.put(SmsMsgTable.COLUMN_NAME_CONTENTS, message);
            values.put(SmsMsgTable.COLUMN_NAME_STATUS, "NEW");
            values.put(SmsMsgTable.COLUMN_NAME_MSGTYPE, 0);
            Calendar c=Calendar.getInstance();
            java.util.Date d=c.getTime();
            SimpleDateFormat df=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            values.put(SmsMsgTable.COLUMN_NAME_DATE, df.format(d));
            db.insert(SmsMsgTable.TABLE_NAME, null, values);
        }
        db.close();
        dbHelper.close();
    }
}

以下是清单文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.sabafon.securesms"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />

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

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.sabafon.securesms.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>
    <activity
        android:name="com.sabafon.securesms.DisplayInbox"
        android:label="@string/title_activity_display_inbox"
        android:parentActivityName="com.sabafon.securesms.MainActivity" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.sabafon.securesms.MainActivity" />
    </activity>
    <activity
        android:name="com.sabafon.securesms.SecurityPreferenceActivity"
        android:label="@string/title_activity_security_preference"
        android:parentActivityName="com.sabafon.securesms.MainActivity" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.sabafon.securesms.MainActivity" />
    </activity>

    <receiver android:name="utilityclasses.SMSReceiver" >
        <intent-filter android:priority="1000" >
            <action android:name="android.provider.Telephony.SMS_RECEIVED" />
            <data android:scheme="sms" />
            <data android:port="5001"/>
        </intent-filter>
    </receiver>

    <activity
        android:name="com.sabafon.securesms.DisplayMessageDetails"
        android:label="@string/title_activity_display_message_details"
        android:parentActivityName="com.sabafon.securesms.DisplayInbox" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.sabafon.securesms.DisplayInbox" />
    </activity>
    <activity
        android:name="com.sabafon.securesms.DisplayOutbox"
        android:label="@string/title_activity_display_outbox"
        android:parentActivityName="com.sabafon.securesms.MainActivity" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.sabafon.securesms.MainActivity" />
    </activity>

</application>

</manifest>