Start Google Hangout from Intent in New Hangouts Android app

Question

There are previous discussions here regarding starting a Google Hangout from an intent on Android: start google hangouts in android

How can I start a Google Hangout

Answer 1

Simple solution is, Query ContactContract.Data for the _id and MIME type.

ContentResolver resolver = context.getContentResolver();  
cursor = resolver.query(
            ContactsContract.Data.CONTENT_URI,
            null, null, null,
            ContactsContract.Contacts.DISPLAY_NAME);

//Now read data from cursor like 

while (cursor.moveToNext()) {
      long _id = cursor.getLong(cursor.getColumnIndex(ContactsContract.Data._ID));
      String displayName = cursor.getString(cursor.getColumnIndex(ContactsContract.Data.DISPLAY_NAME));
      String mimeType = cursor.getString(cursor.getColumnIndex(ContactsContract.Data.MIMETYPE));

      Log.d("Data", _id+ " "+ displayName + " " + mimeType );

}

The output will be like the following

12561 Allen vnd.android.cursor.item/vnd.googleplus.profile.comm

12562 Allen vnd.android.cursor.item/vnd.googleplus.profile.comm

12564 Allen vnd.android.cursor.item/vnd.googleplus.profile

Now save in DB or somewhere else only those _Ids whose MIME type is vnd.android.cursor.item/vnd.googleplus.profile.comm

And then you initiate hangout call/message with those contacts like this way

Intent intent = new Intent();
            intent.setAction(Intent.ACTION_VIEW);

// the _ids you save goes here at the end of /data/12562     
     intent.setDataAndType(Uri.parse("content://com.android.contacts/data/_id"),
                    "vnd.android.cursor.item/vnd.googleplus.profile.comm");
            intent.setPackage("com.google.android.talk");

startActivity(intent);

For the above code to work you must have to check "Keep contacts up to date" in the Google+ App > Settings> Contacts.