@dr0ptp4kt @JMinor

We should also consider alternative placements and UI of the bar.

I wish we could just use the status bar, but thats a no-no. Although we could change the tint depending on Zero status.

I wish we could just use the status bar, but thats a no-no. Although we could change the tint depending on Zero status.

There are ways... https://github.com/jaydee3/JDStatusBarNotification

That's the framework I used to implement EventLogging visualization for the Lyon hackathon

We can also change the global tint color for all navigation bars, but there are also external links to consider.

For devs, just in case you end up in networking headers, keep in mind we don't need MCCMNC header information (T126471), so feel free to remove it as a "boyscout" change

Lest there be confusion, that scout task T126471: Remove MCCMNC header information is for the once-per-cellular-session X-MCCMNC request header enrichment performed at the client, which in turn results in a server side API (api.php) post-processing hook doing sampling on that header and logging it to event logging. In other words, it's generally independent of the client side header detection and state machine.

Presently the iOS app uses mdot subdomains, for which Varnish and the origin server do response header enrichment when the user is on a known zero-rated network, so you should be able to use the same header detection approach as before so long as you're using mdot for the general case.

However, if you plan to start using desktop subdomains, which is what the Android app is fast approaching both for RESTbase and api.php, you'll want to emulate their detection approach, which is being built. @Mholloway should be able to step you through what that entails with a code review of the Android flavored Java, as he and @Niedzielski are in the midst of this sort of stuff on Android.

For the record, I wouldn't suggest switching to destkop subdomains in the middle of the march to v5 of the app. Not that you were considering that (unless you already did that!).

For the record, I wouldn't suggest switching to destkop subdomains in the middle of the march to v5 of the app. Not that you were considering that (unless you already did that!).

FWIW, the app already falls back to desktop, based on certain error conditions.

Anyway, seems like there's more at play here... will sync with you when this is being worked on.

@JMinor can we resolve this epic, too? :)

Yep.