Android: Wie bekomme ich eine Nummer von Kontakte per E-Mail?

Question

Mein Ziel ist es, die Telefonnummer und die E-Mail eines Kontakts zu erhalten. Ich habe versucht, einen Cursor zu verwenden, aber irgendwie gibt es das gleiche für Telefon und E-Mail zurück (beide, abhängig von einigen Dingen). Was ich gerade möchte, ist eine Hashtabelle, die E-Mails an Telefonnummern oder zwei Hashtables, emailToID und IDToPhone abbildet. Dies ist, was ich bis jetzt habe, aber die IDs, die ich verwende, sind nicht dieselben über Parameter (das Telefon von a@a.com ist 123, ihre jeweiligen IDs sind nicht die gleichen und können nicht leicht zugeordnet werden). Wäre dankbar für Hilfe!

public String getPhoneByEmail(String userEmail){ 
    final String EMAIL_URI =  ContactsContract.CommonDataKinds.Email.DATA; 
    final String PHONE_URI = ContactsContract.CommonDataKinds.Phone.NUMBER; 
    Hashtable<String, Integer> emailToId = new Hashtable<>(); 
    Hashtable<Integer, String> idToPhone = new Hashtable<>(); 
    ContentResolver cr = getContext().getContentResolver(); 

    Cursor cur1 = cr.query(
         ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, 
        null, 
        null, null); 
    Cursor cur2 = cr.query(
        ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, 
        null, 
        null, null); 
    while (cur1.moveToNext()) { 
     String phone = cur1.getString(cur1.getColumnIndex(PHONE_URI)); 
     String id1 = cur1.getString(cur1.getColumnIndex(ContactsContract.CommonDataKinds.Phone._ID)); 
     idToPhone.put(Integer.parseInt(id1), phone); 
    } 
    while (cur2.moveToNext()) { 
     String email = cur2.getString(cur2.getColumnIndex(EMAIL_URI)); 
     String id2 = cur2.getString(cur2.getColumnIndex(ContactsContract.CommonDataKinds.Email._ID)); 
     emailToId.put(email, Integer.parseInt(id2)); 
    } 
    cur1.close(); 
    cur2.close(); 

    if (emailToId.get(userEmail)!=null){ 
     int id = emailToId.get(userEmail); 
     int newId = id - 2; 
     String phone = idToPhone.get(newId); 
     return phone; 
    } 
    else return "not found"; 
} 

Answer 1

Verstanden mit Hilfe dieser: https://stackoverflow.com/a/4154729/6463084

private String getPhoneByEmail(String userEmail) { 
    Hashtable<String, String> emailToId = new Hashtable<>(); 
    Hashtable<String, String> idToPhone = new Hashtable<>(); 
    ContentResolver cr = getContext().getContentResolver(); 
    Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null); 
    while (cursor.moveToNext()) { 
     String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID)); 
     String name = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME)); 
     String hasPhone = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)); 
     if (hasPhone.equalsIgnoreCase("1")) 
      hasPhone = "true"; 
     else 
      hasPhone = "false"; 
     if (Boolean.parseBoolean(hasPhone)) { 
      Cursor phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + contactId, null, null); 
      while (phones.moveToNext()) { 
       String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); 
       idToPhone.put(contactId, phoneNumber); 
      } 
      phones.close(); 
     } 
     Cursor emails = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = " + contactId, null, null); 
     while (emails.moveToNext()) { 
      String emailAddress = emails.getString(emails.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA)); 
      emailToId.put(emailAddress, contactId); 
     } 
     emails.close(); 
    } 
    cursor.close(); 
    if (emailToId.get(userEmail) != null) { 
     String id = emailToId.get(userEmail); 
     if (idToPhone.get(id) != null) { 
      String phone = idToPhone.get(id); 
      return phone; 
     } 
    } 
    return "not found"; 
} 

Answer 2

diesen Code Versuchen Sie Kontakt Nummer/Name/E-Mail Von Telefon zu lesen ..

public void storeContactsInLocal() { 
    String sortOrder = ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC"; 
    // retrieve all contacts as a cursor. 
    Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, sortOrder); 

    //now we have cusror with contacts and get diffrent value from cusror. 
    String lastNumber = null; 

    while (cursor.moveToNext()) { 
     String name = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); 
     String phoneNumber = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); 
     String email = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA)); 

     String number = phoneNumber.replaceAll("\\s+", ""); 

     if (!number.equals(lastNumber)) { 
      lastNumber = number; 

      try { 

       // Save Contact in Database! 


       String contactDetail = "Name :" + name + " : " + "Number :" + number+ " : " + "Email :" + email; 

       Log.e("Contact :", contactDetail); 


      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
     } 
    } 
} 

nun diese Funktion Anruf von Ihrem Aktivität wie ..

new Handler().postDelayed(new Runnable() { 
     @Override 
     public void run() { 

       Thread t = new Thread(new Runnable() { 
        @Override 
        public void run() { 
         storeContactsInLocal(); 
        } 
       }); 
       t.start(); 

     } 
    }, 100); 

Vergessen Sie nicht, die Berechtigung zum Lesen der Kontakte zu stellen!