Question

您好我正在尝试使用我正在处理的应用程序实现WhatsApp。我希望能够显示用户拥有的所有WhatsApp联系人以及他们的电话号码。到目前为止，我已经能够获取他们的WhatsApp联系人的名称，但我无法获取他们的WhatsApp联系人的电话号码，这是我用来获取WhatsApp用户联系人列表的代码。

cursor = cr.query(ContactsContract.RawContacts.CONTENT_URI, new String[] {
    ContactsContract.RawContacts.CONTACT_ID, ContactsContract.RawContacts.DISPLAY_NAME_PRIMARY
}, ContactsContract.RawContacts.ACCOUNT_TYPE + "= ?", new String[] {
    "com.whatsapp"
}, null);
int contactNameColumn = cursor.getColumnIndex(ContactsContract.RawContacts.CONTACT_ID);
while (cursor.moveToNext()) {
    String name = cursor.getString(contactNameColumn);
    System.out.println(name);
    Cursor pCur = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[] {
        Integer.toString(contactNameColumn)
    }, null);
    while (pCur.moveToNext()) {
        String phonenumber = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
        System.out.println("PHONE: " + phonenumber);
    }
    pCur.close();
}
cursor.close();

当我打印出名称时，它会正确打印出来，然后我使用该ID查询数据表以获取他们的电话号码，但总是返回null，任何人都可以帮我解决。

由于

Answer 1

像这样更改pCur

     if (name != null) {
                    Cursor pCur = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[]{name}, null);
                    //Iterate cursor here...
                    }

最好对变量使用适当的命名约定。为什么因为这里变量name代表了conatact的id。

Answer 2

你可以阅读所有拥有whatsapp的联系人，例如 -

Cursor c = getContentResolver().query(
        RawContacts.CONTENT_URI,
        new String[] { RawContacts.CONTACT_ID, RawContacts.DISPLAY_NAME_PRIMARY },
        RawContacts.ACCOUNT_TYPE + "= ?",
        new String[] { "com.whatsapp" },
        null);

ArrayList<Int> myWhatsappContacts = new ArrayList<String>();
int contactNameColumn = c.getColumnIndex(RawContacts.DISPLAY_NAME_PRIMARY);
while (c.moveToNext())
{
    // You can also read RawContacts.CONTACT_ID to read the
    // ContactsContract.Contacts table or any of the other related ones.        String phonenumber = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

    myWhatsappContacts.add(phonenumber);
}

Answer 3

使用以下代码从电话簿获取WhatsApp联系人以及相关的whatsApp号码：

private void displayWhatsAppContacts() {

    final String[] projection = {
            ContactsContract.Data.CONTACT_ID,
            ContactsContract.Data.DISPLAY_NAME,
            ContactsContract.Data.MIMETYPE,
            "account_type",
            ContactsContract.Data.DATA3,
    };

    final String selection = ContactsContract.Data.MIMETYPE + " =? and account_type=?";
    final String[] selectionArgs = {
            "vnd.android.cursor.item/vnd.com.whatsapp.profile",
            "com.whatsapp"
    };

    ContentResolver cr = getContentResolver();
    Cursor c = cr.query(
            ContactsContract.Data.CONTENT_URI,
            projection,
            selection,
            selectionArgs,
            null);

    while (c.moveToNext()) {
        String id = c.getString(c.getColumnIndex(ContactsContract.Data.CONTACT_ID));
        String number = c.getString(c.getColumnIndex(ContactsContract.Data.DATA3));
        String name = c.getString(c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

        Log.v("WhatsApp", "name " +name + " - number - "+number);

    }
    Log.v("WhatsApp", "Total WhatsApp Contacts: " + c.getCount());
    c.close();
}

如何获得最新的应用程序联系人＆＃39;电话号码

3 个答案: