838619 - Screenshots are not displayed properly when swiped on Android device

Status: RESOLVED WORKSFORME

(Marketplace Graveyard :: Consumer Pages, defect)

Description

[Cristian Boldan]

Steps to reproduce:
1. Load details page for an app on your Android device (ex. https://marketplace-dev.allizom.org/app/pasjanssolitaire/ )
2. Tap o a screenshot
3. Swipe your finger to the right and then make clock-wise circles on the screen.

Expected results:
Screenshots are swiped normally with no issues.

Actual results:
Screenshots are wobbling on the screen.

Notes/Issues:
Verified on FF21 (Android 4.1.1 Galaxy Nexus).
Attaching video for this issue.

Comment 1

[Cristian Boldan]

Attachment: screenshot wobbling

Comment 2

[Matt Basta [:basta]]

This is indeed the correct behavior. Firefox for Android has overscroll (where you can scroll past the edge of the screen and it snaps back). In the first half of the video, that's what you're seeing (it's a feature!). The second half of the video shows this scenario:

1. User lifts finger
2. User initiates successful flipsnap swipe
3. User begins scrolling

At that point, the screenshots can move in all directions, creating the trippy effect that you see in the video. If you account for FXA's overscroll, though, this is the expected behavior.

Unfortunately, there's no apparent way to disable overscroll when the lightbox is open.