Quoting from the other task for context:

In T213429#4954219, @iamjessklein wrote:

Tested this with iOS and Android on:

• mobile Firefox (most up to date version)
• mobile Safari (most up to date version)
• mobile Chrome (most up to date version)

Everything is behaving as I'd expect.
One small tweak (that is really a nit) is that when you get into the editing view, and scroll to the bottom of the section, there's a large amount of extra white space. Is this avoidable?

In T213429#4954484, @Esanders wrote:

@iamjessklein The whitespace is required to allowed you to scroll down far enough such that the last line of text can appear the above the onscreen keyboard (the height of which we cannot know, so must assume to be nearly as tall as the screen). If you have found a situation on a particular device where it appears there is too much whitespace we can look into that.

In T213429#4954634, @iamjessklein wrote:

Okay, I just tried this with the keyboard up and it still looks a touch excessive to me ...

In T213429#4955537, @Esanders wrote:

Testing on Chrome with user agent set to iPhone I get just enough whitespace to push the last line to the top of the screen, which is correct:

Change 497483 had a related patch set uploaded (by Bartosz Dziewoński; owner: Bartosz Dziewoński):
[mediawiki/extensions/VisualEditor@master] MobileArticleTarget: Remove padding below the surface on iOS

https://gerrit.wikimedia.org/r/497483

Change 497483 merged by jenkins-bot:
[mediawiki/extensions/VisualEditor@master] MobileArticleTarget: Remove padding below the surface on iOS

https://gerrit.wikimedia.org/r/497483

Looks like we regressed it with the toolbar changes. The existing code should check for whether the keyboard is active, but it actually checks for which toolbar is active – which was equivalent before, but now there is only a single toolbar, so the check does nothing.

Change 535253 had a related patch set uploaded (by Bartosz Dziewoński; owner: Bartosz Dziewoński):
[VisualEditor/VisualEditor@master] ve.ui.Surface: Fix check for active virtual keyboard in #adjustVisiblePadding

https://gerrit.wikimedia.org/r/535253

Change 535253 merged by jenkins-bot:
[VisualEditor/VisualEditor@master] ve.ui.Surface: Fix check for active virtual keyboard in #adjustVisiblePadding

https://gerrit.wikimedia.org/r/535253

Change 537178 had a related patch set uploaded (by Bartosz Dziewoński; owner: Bartosz Dziewoński):
[mediawiki/extensions/VisualEditor@master] Update VE core submodule to master (a9d533280)

https://gerrit.wikimedia.org/r/537178

Change 537178 merged by jenkins-bot:
[mediawiki/extensions/VisualEditor@master] Update VE core submodule to master (81e2e57a5)

https://gerrit.wikimedia.org/r/537178

Still reproduce on Beta when I tap at the end of the article, was testing on the same article.

@Ryasmeen If that's only when the keyboard is open, then that is unavoidable on iOS, IIRC we need it for the toolbar hacks (T218414). When the keyboard is closed, the issue should be fixed.

In T217769#5512172, @matmarex wrote:

@Ryasmeen If that's only when the keyboard is open, then that is unavoidable on iOS, IIRC we need it for the toolbar hacks (T218414). When the keyboard is closed, the issue should be fixed.

Ok, in that case, it's fixed :) Moving to PM review column.