711746 - [ICS] Nightly title look-alike displayed before main UI when starting up

Status: VERIFIED FIXED

(Firefox for Android Graveyard :: General, defect, P1)

Description

[Mike Hommey [:glandium]]

Attachment: Screenshot

When starting nightly on ICS, something that looks like a title is displayed. See attached screenshot.

Comment 1

[Brad Lassey [:blassey] (use needinfo?)]

so what's the bug here?

Comment 2

[Mike Hommey [:glandium]]

That we don't get the full UI immediately. This feels like a splashscreen (though a fast one). So far, I've seen no other application having that. mfinkle said this was because of the actionbar.

Comment 3

[Doug Turner (:dougt)]

i am not working on these right now.  resetting assignee.

Comment 4

[Sriram Ramasubramanian [:sriram]]

This is a known issue on ICS. The "Action Bar" of the app is shown first and then the UI is loaded. It's not as instantaenous as in Honeycomb.
This behavior is seen even for native apps like Gmail, Books, Messaging, etc.

Comment 5

[Mike Hommey [:glandium]]

(In reply to Sriram Ramasubramanian [:sriram] from comment #4)
> This behavior is seen even for native apps like Gmail, Books, Messaging, etc.

... but not Chrome beta.

Comment 6

[Sriram Ramasubramanian [:sriram]]

@glandium: Agreed :D
The reason is that we are "inflating" our custom view in GeckoApp's onCreate() instead of Android load it from XML. For a different issue, I tried hiding the ActionBar in XML and we got around 300ms performance win.
I tried the same here -- to initialize the ActionBar in XML instead of Java. We have 2 good news:
1. the startup is faster - around same 300-500ms
2. the title is not shown when the app is loading (it's blank currently.. and I'm further optimizing the startup)

Comment 7

[Sriram Ramasubramanian [:sriram]]

Attachment: Patch

The actionbar gets loaded in XML for first run. However, since we use a gradient background for actionbar, it needs to be refreshed on rotation and hence loaded in old fashion. This patch also takes care of actionbar in AwesomeBar.

TabsTray is left untouched because it was adding a small menu button on Galaxy Nexus.

Comment 8

[Mark Finkle (:mfinkle) (use needinfo?)]

Comment on attachment 596184 [details] [diff] [review]
Patch

Did you test this on Honeycomb, ICS and Gingerbread? I just want to make sure we don't have any breakage.

Comment 10

[Sriram Ramasubramanian [:sriram]]

http://hg.mozilla.org/integration/mozilla-inbound/rev/25d02871313b

Comment 11

[Marco Bonardo [:mak]]

https://hg.mozilla.org/mozilla-central/rev/25d02871313b

Comment 12

[Paul Feher]

The application icon is not present anymore at startup. 
Verified/Fixed on:
Nightly Fennec 16.0a1 (2012-06-05)
Aurora Fennec 14.0a2 (2012-06-04)
Device: Samsung Galaxy Nexus
OS: Android 4.0.2