[sdk] Programmatic slider movement is jerky
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| Ubuntu UX |
Fix Committed
|
Medium
|
Jamie Young | ||
| ubuntu-ui-toolkit (Ubuntu) |
Confirmed
|
Low
|
Unassigned | ||
Bug Description
[Updated description]
Ubuntu 15.04 r51
1. In System Settings, navigate to Brightness.
2. Turn on "Adjust automatically" if it is not on already.
3. Go into a much lighter or darker environment, for example by turning lights on/off.
What you see: The slider pops suddenly from one point to another.
What you should see: The slider slides smoothly, accelerating as it leaves its previous value, and decelerating as it reaches its new value.
The brightness slider is just the first ever example of this: it should be a general property of sliders whenever their value is changed non-interactively.
It may save time to fix bug 1388094 at the same time as this bug.
–––
Desired resolution:
We need an easing curve for this animation. We use this animation curve: http://
Please use this easing curve for the animation between the two points on the programmatic slider.
| description: | updated |
| summary: |
- Non-manual slider movement is jerky + Programmatic slider movement is jerky |
| Launchpad Janitor (janitor) wrote Re: Programmatic slider movement is jerky | #1 |
| Changed in ubuntu-ui-toolkit (Ubuntu): | |
| status: | New → Confirmed |
| Changed in ubuntu-ui-toolkit (Ubuntu): | |
| importance: | Undecided → Low |
| Changed in ubuntu-ux: | |
| status: | New → Triaged |
| summary: |
- Programmatic slider movement is jerky + [sdk] Programmatic slider movement is jerky |
| Changed in ubuntu-ux: | |
| importance: | Undecided → Medium |
| assignee: | nobody → Jamie Young (jamiedawsonyoung) |
| description: | updated |
| Changed in ubuntu-ux: | |
| status: | Triaged → In Progress |
| Changed in ubuntu-ux: | |
| status: | In Progress → Fix Committed |
| Matthew Paul Thomas (mpt) wrote | #2 |
Status changed to 'Confirmed' because the bug affects multiple users.