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Testing and Issues

You can test this app and submit issues during the testing period of the Android Chart contest.

Entries with serious issues will not be able to win the contest, but even minor issues might be important for overall results.


by rating


Fair Quokka Apr 28, 2019 at 16:53
— Overall average to good performance.
— The graphs are slow when scaling.
— Vertical scrolling doesn't work unless you aim outside the graphs.
— Some glitches when filtering the third graph (the attached video).
Samsung Galaxy J7, Android 8.1.0
Scales with big delay and jumps
Honor 7X, Android 8.0.0
Modest Bear Apr 17, 2019 at 23:32
Can't reproduce on my devices. Including Xperia Z1 which is much older than Honor 7X (2013 vs 2017) and Redmi Note 5 which is newer.
Redmi note 5 / Android 8.1.0
Also bag with legend view
Modest Bear Apr 17, 2019 at 23:33
Confirmed. This issue and the previous one are the single issue that occurs when multiple condition intersects. 1. Only one chart active 2. Point selected 3. Long tap another chart after that. Fixed this bug locally, it took changing 2 lines of code.
Redmi note 5 / Android 8.1.0
Bag in day/night mode change
Modest Bear Apr 17, 2019 at 17:07
Duplicate of the next issue.
Wrong date on legend (i choose day for legend and then scroll or change chart range)
Modest Bear Apr 17, 2019 at 23:24
Confirmed, but not in this way. The day is correct. The problem is with vertical bar which position is not recalculated on range change on Bar charts. Fixed locally, 4 lines of code changed.
Redmi note 5 / Android 8.1.0
Wrong percentage value on legend (also wrong date)
Modest Bear Apr 17, 2019 at 23:29
Probably you've misunderstood the logic here. As there's no requirement to move selected x value on range change, I choose to leave it the same. And position card displays the current selected x which can be not on the screen.

The absence of vertical selection bar on screen indicates that you've selected the date then scrolled the screen so that selected date now is not in visible range. Right alignment of point card indicates that the date is on the right of selected range, just like expected for this
So, it's not an issue.
Redmi note 5 / Android 8.1.0
Very big minimal range (hard to choose a right day)
Modest Bear Apr 17, 2019 at 16:07
It's done to allow slider scrolling. Basically it's one of clickability constants specified in the app. So it's not an issue but a compromise which different contestants solved in different ways.
About issue with percentage value above:
On legend i see only one line with apricots, also i see 4% written there. If you really think, that it isn't issue, explain why there are not 100% or other lines (other 96%)?
Modest Bear Apr 18, 2019 at 15:30
Ok, I agree with the percentage part of your description. Fixed, this time 7 lines changed.

You're quite observant. I wish I had your skills before submitting the app :)
Redmi note 5 / Android 8.1.0
In rules of testing i saw, that usability also can be appreciated, so big minimal range is issue
Modest Bear Apr 18, 2019 at 15:19
My approach is targeted to improve usability by allowing users to drag the slider. It improves usability.

With your approach, when slider is too small, only borders dragging can be done. It decreases usability.

So both of the approaches have their upsides and downsides for usability. Not an issue, but a compromise which different contestants approach differently.
Redmi note 5 / Android 8.1.0
I hope that you don't misunderstand me, I think that your app is really cool, but have minor issues:)
Modest Bear Apr 18, 2019 at 18:52
Oh, thanks. This is the kind of words that is really needed in this stressful period :) We've spent a lot of efforts to make these apps, so it can be hard to see only the negative comments. Sorry for my initial defensive reaction to your comments.
Good app, but without bonus part, you are in my 'vote up' list. Vote up mine, if it's good enough
One Plus X
Modest Bear Apr 19, 2019 at 15:11
Thanks. You've got bonus tasks, so some minor imperfections are not that important. Voted up too.
Redmi note 5 / Android 8.1.0
Nobody added any issues yet...