[dialer] USSD code result shows useless Cancel button

[Loïc Minier]

Hi there,

This is on T-Mobile with devel build #28.

When running USSD code #225# to get the account balance, I get a nice popup with the resulting text from T-Mobile, but it has both Ok and Cancel buttons which do the same thing. The Cancel button should be removed.

Cheers,

------- UX comment & resolution -------

There is a new design for the snap decision, which allows a one button approach. This would mean that once that is in place the snap decision for displaying any USSD info can have only an OK button.

Please refer to the latest notifications spec on p21/22 here:
https://docs.google.com/document/d/1xDSZ_dnAMAlhgFnnyjJEibaITXjVLp1_pnj_tATNm9I/edit?pli=1#

[Loïc Minier (lool)]

John Lea (design) says both buttons should be removed; should either go away by itself or tap-to-dismiss. So no button.

[Tiago Salem Herrmann (tiagosh)]

When we first implemented this feature we tried to use only one button, but the snap decision wouldn't allow us to place only one button in the bubble. Not sure if that is currently possible.

USSD must be a modal notification as per GSM spec and should not timeout. It requires an interaction from users in order to go away. And IIRC, regular on screen notification also do not support that.

We ended up adding the cancel button as a workaround. The right fix in my opinion would be allowing snap decisions with only one action button.

[Olga Kemmet (olga-kemmet)]

@Tiago: Can you use a dialog for this instance?

[Olga Kemmet (olga-kemmet)]

Bug description updated and UX resolution provided, marking as Fix Committed.

[Peter Bittner (peter-bittner)]

This issue has not been addressed for OTA-7. The dialog still shows two buttons (Cancel, OK).

(See #1496901 for a duplicate with additional acceptance criteria, https://bugs.launchpad.net/dialer-app/+bug/1496901)

[Peter Bittner (peter-bittner)]

The mentioned fix for this issue has not been rolled out with OTA-8. The dialog still shows two buttons (Cancel, OK).