收到短信时，联系人姓名未显示在通知中

Posted 2023-02-24

【中文标题】收到短信时，联系人姓名未显示在通知中

【英文标题】：Contact name not showing in Notifications when Sms receives

【发布时间】：2016-05-12 08:24:10

【问题描述】：

我正在制作一个应用程序，当收到来自已知号码的新短信时，即如果该号码保存在联系人列表中，则推送通知显示。现在的问题是通知没有显示联系人的显示名称。它可以显示消息编号和消息内容，但不显示该联系人的显示名称。

我检查新短信是否来自已保存联系人的代码是：

public boolean contactExists(Context context, String number) 
Uri lookupUri = Uri.withAppendedPath(
PhoneLookup.CONTENT_FILTER_URI, 
Uri.encode(number));
String[] mPhoneNumberProjection =  PhoneLookup._ID, PhoneLookup.NUMBER, PhoneLookup.DISPLAY_NAME ;
Cursor cur = context.getContentResolver().query(lookupUri,mPhoneNumberProjection, null, null, null);
try 
   if (cur.moveToFirst()) 
      return true;
   
 
finally 

    if (cur != null)
   cur.close();

return false;

通知提醒的代码是：

if (contactExists(context, msg_from))
        

            NotificationCompat.Builder notify = new NotificationCompat.Builder(context);
            notify.setSmallIcon(R.drawable.appicon);
            notify.setContentTitle(msg_from);
            notify.setContentText(msgBody);
            notify.setAutoCancel(true);
            notify.setVibrate(new long[]1000, 1000, 1000, 1000, 1000);
            notify.setLights(Color.GREEN, 2000, 2000);
            notify.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION));
            Intent notificationIntent = new Intent(Intent.ACTION_MAIN);
            notificationIntent.addCategory(Intent.CATEGORY_DEFAULT);
            notificationIntent.setType("vnd.android-dir/mms-sms");
            notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
            PendingIntent intentt = PendingIntent.getActivity(context, 0,notificationIntent, 0);
            notify.setContentIntent(intentt);
            //notify.setContentIntent(PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), 268435456));
            NotificationManager notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
            notificationManager.notify(0, notify.build());

        

现在你在这一行看到我写“msg_from”

notify.setContentTitle(msg_from);

这会给我消息来自的号码，但如果我写这个：

notify.setContentTitle(PhoneLookup.DISPLAY_NAME);

或我在互联网上找到的其他解决方案，然后显示的通知标题将显示此字符串“display_name”而不显示实际名称 请帮忙！

这是我该类的所有代码

public class TodoRe extends BroadcastReceiver 
Context context;

ArrayList<String> keywordslist = new ArrayList<String>();


@SuppressLint( "DefaultLocale", "InlinedApi" )
@Override
public void onReceive(Context context, Intent intent) 

LinkedHashMap<String, String> contactNumber = new LinkedHashMap<String, String>();
DBkeyword screenedKeywordDB = new DBkeyword(context);
SQLiteDatabase db = screenedKeywordDB.getWritableDatabase();
Cursor cur1 = db.rawQuery(Constants.readScreenedKeywords, null);
cur1.moveToFirst();
while (!cur1.isAfterLast()) 

    keywordslist.add(cur1.getString(0));
    cur1.moveToNext();


db.close();
DBTable dbtable = new DBTable(context);
SQLiteDatabase dbrsn = dbtable.getReadableDatabase();
Cursor cur = dbrsn.rawQuery(Constants.readScreenedNumbers, null);
cur.moveToFirst();

while (!cur.isAfterLast()) 

  contactNumber.put(cur.getString(0), cur.getString(1));
  cur.moveToNext();

if (intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")) 
  Bundle bundle = intent.getExtras();
  SmsMessage[] msgs = null;
  String msg_from,msgSenderName;
  if (bundle != null) 
    try 
      boolean keywordPresent = false;
      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]);
        msg_from = msgs[i].getOriginatingAddress();

        String msgBody = msgs[i].getMessageBody();
        String title= cur.getString(cur.getColumnIndex(PhoneLookup.DISPLAY_NAME));
        msg_from = Utilities.extractNumbers(msg_from);
        Long dateLong = msgs[i].getTimestampMillis();
        String msgDate = dateLong.toString();

        ContentValues values = new ContentValues(); 
        values.put("address", msg_from); 
        values.put("date", System.currentTimeMillis()+""); 
        values.put("read", "1"); 
        values.put("type", "1"); 
        values.put("body",msgBody); 
        Uri uri = Uri.parse("content://sms/"); 
        context.getContentResolver().insert(uri,values);

        if (contactExists(context, msg_from))
        
            NotificationCompat.Builder notify = new NotificationCompat.Builder(context);
            notify.setSmallIcon(R.drawable.appicon);
            notify.setContentTitle(title);
            notify.setContentText(msgBody);
            notify.setAutoCancel(true);
            notify.setVibrate(new long[]1000, 1000, 1000, 1000, 1000);
            notify.setLights(Color.GREEN, 2000, 2000);
              notify.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION));
            Intent notificationIntent = new Intent(Intent.ACTION_MAIN);
            notificationIntent.addCategory(Intent.CATEGORY_DEFAULT);
            notificationIntent.setType("vnd.android-dir/mms-sms");
            notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
            PendingIntent intentt = PendingIntent.getActivity(context, 0,notificationIntent, 0);
            notify.setContentIntent(intentt);
            //notify.setContentIntent(PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), 268435456));
            NotificationManager notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
            notificationManager.notify(0, notify.build());

        


public boolean contactExists(Context context, String number) 
Uri lookupUri = Uri.withAppendedPath(
PhoneLookup.CONTENT_FILTER_URI, 
Uri.encode(number));
String[] mPhoneNumberProjection =  PhoneLookup._ID, PhoneLookup.NUMBER, PhoneLookup.DISPLAY_NAME ;
Cursor cur = context.getContentResolver().query(lookupUri,mPhoneNumberProjection, null, null, null);
try 
   if (cur.moveToFirst()) 
      return true;
   
 
finally 

    if (cur != null)
   cur.close();

return false;

这是现在更新的代码

ContentValues values = new ContentValues(); 
        values.put("address", msg_from); 
        values.put("date", System.currentTimeMillis()+""); 
        values.put("read", "1"); 
        values.put("type", "1"); 
        values.put("body",msgBody); 
        Uri uri = Uri.parse("content://sms/"); 
        context.getContentResolver().insert(uri,values);
        String title = contactName(context, msg_from);
        String sss=cur.getString(cur.getColumnIndex(PhoneLookup.DISPLAY_NAME));
        if (contactExists(context, msg_from) && title != null)
        
            NotificationCompat.Builder notify = new NotificationCompat.Builder(context);
            notify.setSmallIcon(R.drawable.appicon);
            notify.setContentTitle(sss);
            notify.setContentText(msgBody);
            notify.setAutoCancel(true);
            notify.setVibrate(new long[]1000, 1000, 1000, 1000, 1000);
            notify.setLights(Color.GREEN, 2000, 2000);
            notify.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION));
            Intent notificationIntent = new Intent(Intent.ACTION_MAIN);
            notificationIntent.addCategory(Intent.CATEGORY_DEFAULT);
            notificationIntent.setType("vnd.android-dir/mms-sms");
            notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
            PendingIntent intentt = PendingIntent.getActivity(context, 0,notificationIntent, 0);
            notify.setContentIntent(intentt);
            //notify.setContentIntent(PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), 268435456));
            NotificationManager notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
            notificationManager.notify(0, notify.build());

        

public boolean contactExists(Context context, String number) 
Uri lookupUri = Uri.withAppendedPath(
PhoneLookup.CONTENT_FILTER_URI, 
Uri.encode(number));
String[] mPhoneNumberProjection =  PhoneLookup._ID, PhoneLookup.NUMBER, PhoneLookup.DISPLAY_NAME ;
Cursor cur = context.getContentResolver().query(lookupUri,mPhoneNumberProjection, null, null, null);
try 
   if (cur.moveToFirst()) 
      return true;
   
 
finally 

    if (cur != null)
   cur.close();

return false;


public String contactName(Context context, String number) 
Uri lookupUri = Uri.withAppendedPath(
PhoneLookup.CONTENT_FILTER_URI, 
Uri.encode(number));
String[] mPhoneNumberProjection =  PhoneLookup._ID, PhoneLookup.NUMBER, PhoneLookup.DISPLAY_NAME ;
Cursor cur = context.getContentResolver().query(lookupUri,mPhoneNumberProjection, null, null, null);
try 
   if (cur.moveToFirst()) 
       return cur.getString(cur.getColumnIndex(PhoneLookup.DISPLAY_NAME ));
   
 
finally 

    if (cur != null)
   cur.close();

return null;

现在有两种方法，一种检查是否存在，另一种返回名称

【参考方案1】：

DISPLAY_NAME 常量是保存联系人显示名称的数据库表列的名称。它的值是"display_name"，这就是为什么您会在Notification 中看到它。

您需要Cursor 对该列的值。也就是说，你想要：

cur.getString(cur.getColumnIndex(PhoneLookup.DISPLAY_NAME))

---

更改contactExists() 方法以返回String 作为显示名称，而不是仅指示它是否存在的boolean。

public String contactExists(Context context, String number) 
    ...

    try 
        if (cur.moveToFirst()) 
            return cur.getString(cur.getColumnIndex(PhoneLookup.DISPLAY_NAME ));
        
     
    finally 
        if (cur != null)
            cur.close();
    
    return null;

然后，将title 更改为该方法的返回值，并更改if 语句以检查title 是否不是null。

String title = contactExists(context, msg_from);

if (title != null) 
    NotificationCompat.Builder notify = ...
    ...

您可能还想更改 contactExists() 方法名称，因为它现在返回显示名称。

【讨论】：

我写下这一行并将其保存在字符串名称“title”中，然后我写 notify.setContentTitle(title);但现在通知没有出现

您必须使用您对代码所做的更改来编辑您的问题。从您的评论中我无法判断它可能在哪里失败。

是的，你用错了Cursor。您想更改 contactExists() 方法以返回显示名称，而不仅仅是 true 或 false。给我一分钟，我会更新答案。

好的，先生，请检查一下

当短信收到时出现以下错误并且应用程序强制关闭