如何让联系人信息进入短信广播接收器类？

Question

我有一个应用程序，与手机接收短信时的联系人信息，我需要获取联系人信息到我创建的SMS接收器类，但问题是当SMS接收器获取联系人给了我的空指针异常错误因为它不会获取联系人信息，我的想法是获取所有联系人信息以比较SMS发件人的号码以获取其ID以在我的应用中执行其他操作。

这里是我的代码：

public class SMSBroadcastReceiver extends BroadcastReceiver { 

    private static final String SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED"; 
    private static final String TAG = "SMSBroadcastReceiver"; 
    private static Activity mActivity; 
    DBHelper mDBHelper; 
    private Context mContext; 
    private ArrayList<Contact> mContactsArrayList; 
    public String str4; 
    private ContactManager aContactManager; 
    private ArrayList<Contact> ctnList; 
    @Override 
    public void onReceive(Context context, Intent intent) 
    { 
     //---get the SMS message passed in--- 
     Log.d("SMSBroadcastReceiver", "Yes it calls the onReceive"); 
     Bundle bundle = intent.getExtras();   
     SmsMessage[] msgs = null; 
     String str = ""; 
     String str2 = ""; 
     if (bundle != null) 
     { 
      //---retrieve the SMS message received--- 
      Object[] pdus = (Object[]) bundle.get("pdus"); 
      msgs = new SmsMessage[pdus.length];    
      for (int i=0; i<msgs.length; i++){ 
       msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);     
       str2=msgs[i].getOriginatingAddress();      
       str = msgs[i].getMessageBody().toString(); 
        str4 = str2;  
      } 


      if(str.charAt(0)=='#'&&str.length()<=4){ 

       String ns = Context.NOTIFICATION_SERVICE; 
       NotificationManager notManager = 
        (NotificationManager) context.getSystemService(ns); 

       //Configuramos la notificaci�n 
       int icono = R.drawable.resultadosmnu; 
       CharSequence textoEstado = "Ask-It notification"; 
       long hora = System.currentTimeMillis(); 

       Notification notif = 
        new Notification(icono, textoEstado, hora); 
       CharSequence titulo = "New set of response on Askit"; 
       CharSequence descripcion = "There's available a new set of response on your Survey_Name graph"; 

       Intent notIntent = new Intent(context, 
         ProyectoAskitActivity.class); 

       PendingIntent contIntent = PendingIntent.getActivity(
         context, 0, notIntent, 0); 

       notif.setLatestEventInfo(
         context, titulo, descripcion, contIntent); 
       notif.flags |= Notification.FLAG_AUTO_CANCEL; 
       notManager.notify(icono, notif); 
       Contact cnt = queryDetailsForContactNumber(str2); 
       Toast toast1 = 
         Toast.makeText(context, 
           cnt.getPhoneNumber(), Toast.LENGTH_SHORT); 

       toast1.show(); 
     } 
     } 

     }       

    public Contact queryDetailsForContactNumber(String aContactId) { 
     final String[] projection = new String[] { 
       Phone._ID,       // the contact id column 
       Phone.DISPLAY_NAME,     // the name of the contact 
       Phone.NUMBER  // the id of the column in the data table for the image 
     }; 

     final Cursor contact = mActivity.managedQuery(
       Phone.CONTENT_URI, 
       projection, 
       Phone.NUMBER+"="+aContactId,      // filter entries on the basis of the contact id 
       null, // the parameter to which the contact id column is compared to 
       null); 

     if(contact.moveToFirst()) { 
      final int contactId = contact.getInt(
         contact.getColumnIndex(Phone._ID)); 
      final String name = contact.getString(
        contact.getColumnIndex(Phone.DISPLAY_NAME)); 
      final String number = contact.getString(
        contact.getColumnIndex(Phone.NUMBER)); 
      final Contact aContact = new Contact(contactId, name,null,false,number); 


      return aContact; 
     } 

     return null; 
    } 

} 

Answer 1

最后我解决我的问题，我创建的所有联系人参数应用一个对象类称为接触和创建联系人的ArrayList和与联系人填充它得到的信息进行比较一个接一个地得到我需要的信息。

public class SMSBroadcastReceiver extends BroadcastReceiver { 
private static final String SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED"; 
    private static final String TAG = "SMSBroadcastReceiver"; 
    DBHelper mDBHelper; 
    static Context mContext; 
    private ArrayList<Contact> ctnList; 

    @Override 
    public void onReceive(Context context, Intent intent) 
    { 
     //---get the SMS message passed in--- 
     Log.d("SMSBroadcastReceiver", "Yes it calls the onReceive"); 
     Bundle bundle = intent.getExtras();   
     SmsMessage[] msgs = null; 
     String str = ""; 
     String str2 = ""; 
     if (bundle != null) 
     { 
      //---retrieve the SMS message received--- 
      Object[] pdus = (Object[]) bundle.get("pdus"); 
      msgs = new SmsMessage[pdus.length];    
      for (int i=0; i<msgs.length; i++){ 
       msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);     
       str2=msgs[i].getOriginatingAddress();      
       str = msgs[i].getMessageBody().toString(); 

      } 


      if(str.charAt(0)=='#'&&str.length()<=4){ 

       String ns = Context.NOTIFICATION_SERVICE; 

       ctnList=queryAllContactsWithPhone(context); 
       Contact ctn = new Contact(); 
       int x = ctnList.size(); 
       int y = 0; 
       while(x-1>=y){ 
        ctn = ctnList.get(y); 
        if(ctn.getPhoneNumber().compareTo(str2)==0){ 
         Toast toast1 = 
           Toast.makeText(context, 
             ctn.getName(), Toast.LENGTH_LONG); 

         toast1.show(); 
        }else{ 
         Toast toast1 = 
           Toast.makeText(context, 
             str2, Toast.LENGTH_LONG); 

         toast1.show(); 
        } 
        y++; 
       } 

     } 
     } 

     }       

    public ArrayList<Contact> queryAllContactsWithPhone(Context ct) { 

     final String[] projection = new String[] { 
       Phone.CONTACT_ID,       // the contact id column 
       Phone.DISPLAY_NAME,     // the contact display name 
       Phone.NUMBER 
     }; 

     final String selection = Contacts.HAS_PHONE_NUMBER; // the contact has to have a phone number. 
     final String sort = Contacts.DISPLAY_NAME+" ASC"; // the contact has to have a phone number. 

     final Cursor contacts = ct.getContentResolver().query(
       Phone.CONTENT_URI,  // the uri for contact provider 
       projection, 
       null,     // if selection = null, retrieve all entries 
       null,      // not required because selection does not contain parameters 
       sort);      // do not order 

     final int contactIdColumnIndex = contacts.getColumnIndex(Phone.CONTACT_ID); 
     final int contactDisplayNameColumnIndex = contacts.getColumnIndex(Phone.DISPLAY_NAME); 
     final int contactPhoneColumnIndex = contacts.getColumnIndex(Phone.NUMBER); 

     final ArrayList<Contact> contactsArrayList = new ArrayList<Contact>(); 
     if(contacts.moveToFirst()) {     // move the cursor to the first entry 
      while(!contacts.isAfterLast()) {   // still a valid entry left? 
       final int contactId = contacts.getInt(contactIdColumnIndex); 
       final String contactDisplayName= contacts.getString(contactDisplayNameColumnIndex); 
       final String Phones = contacts.getString(contactPhoneColumnIndex); 
       final Contact aContact = new Contact(); 
       aContact.setPhoneNumber(Phones); 
       aContact.setName(contactDisplayName); 
       aContact.setId(contactId); 
       contactsArrayList.add(aContact); 
       contacts.moveToNext();    // move to the next entry 
      } 
     } 

     contacts.close(); 
     return contactsArrayList; 
    }  
} 

Answer 2

我会初始化一个服务，而不是这样做，在接收器。 看到这种服务http://developer.android.com/reference/android/app/IntentService.html