如何检查Android手机上的联系人是否启用了whatsapp？

Question

对于我的地址簿中给定的号码,我需要查看号码是否启用了whatsapp.(我们的想法是选择SMS/WhatsApp来启动文本意图)

可以说,我在联系人下面有两个号码,而且我需要知道哪个号码启用了whatsapp.

Nexus 4上的"People"应用程序显示了两个联系人号码,还有一个下面有一个CONNECTIONS部分,它只显示了WhatsApp可能的联系方式.

有没有办法查找(如人们的应用程序如何)？

Answer 1

如果你想知道这个联系人是否有WhatsApp:

String[] projection = new String[] { RawContacts._ID };
String selection = ContactsContract.Data.CONTACT_ID + " = ? AND account_type IN (?)";
String[] selectionArgs = new String[] { "THE_CONTACT_DEVICE_ID", "com.whatsapp" };
Cursor cursor = activity.getContentResolver().query(RawContacts.CONTENT_URI, projection, selection, selectionArgs, null);
boolean hasWhatsApp = cursor.moveToNext();
if (hasWhatsApp){
    String rowContactId = cursor.getString(0);
}

并找到WhatsApp的联系人数

projection = new String[] { ContactsContract.Data.DATA3 };
selection = ContactsContract.Data.MIMETYPE + " = ? AND " + ContactsContract.Data.RAW_CONTACT_ID + " = ? ";
selectionArgs = new String[] { "vnd.android.cursor.item/vnd.com.whatsapp.profile", rawContactId };
cursor = CallAppApplication.get().getContentResolver().query(ContactsContract.Data.CONTENT_URI, projection, selection, selectionArgs, "1 LIMIT 1");
String phoneNumber = null;
if (cursor.moveToNext()) {
    phoneNumber = cursor.getString(0);
}