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ailiboy / ebookdroid

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Scrolling in pdf produces unnecessary flashing with e-ink devices #141

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. Open a multipage pdf file
2. Use the one-touch controls to scroll through the file

What is the expected output? What do you see instead?
Without any animations I would expect the reader to show the next segment of 
the page. Instead it first show (for a short moment) something in between and 
then the final page segment. For normal android devices this is no problem but 
for e-ink devices 
this leads to two unnecessary updates of the display (the display flashes three 
times on my reader) and a delay before the final output is displayed.

What version of the product are you using? On what operating system?
EBookDroid 1.3.3-dev revision 887

What device are you using?
Sony Prs-T1

Please provide any additional information below.
The new auto cropping is awesome and I hope this issue can also be resolved. 
Then it is by far the best pdf reader for the Prs-T1.

Original issue reported on code.google.com by vonloe...@gmail.com on 31 Jan 2012 at 4:39

GoogleCodeExporter commented 9 years ago 
Sorry, we do not have any eink android devices, so we can not test this. Also 
E-Ink is not our high priority target.

Original comment by Andrei.K...@gmail.com on 1 Feb 2012 at 9:44

GoogleCodeExporter commented 9 years ago 
For e-ink devices, use Orion Viewer (http://code.google.com/p/orion-viewer/)

Original comment by danielar...@gmail.com on 1 Feb 2012 at 12:55

GoogleCodeExporter commented 9 years ago 
An option to disable scrolling animations can be tested on any device. It 
doesn't need to be e-ink. Some users of smartphones and tablets could also find 
this useful.

Original comment by danielar...@gmail.com on 10 Feb 2012 at 1:26

GoogleCodeExporter commented 9 years ago 
You can use single page mode with no animations.

Original comment by Andrei.K...@gmail.com on 10 Feb 2012 at 2:03

GoogleCodeExporter commented 9 years ago 
Continuous page mode is what makes EbookDroid useful for small screens.

Original comment by danielar...@gmail.com on 10 Feb 2012 at 2:09

GoogleCodeExporter commented 9 years ago 
I've encountered the very same problem (I'm also a PRS-T1 user)

Original comment by grabo...@gmail.com on 22 Apr 2012 at 2:52