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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 09:40
— Sloppy on vertical scrolling.
— The third graph is slow when filtering.
— Bonus goal is not completed (+/-) — zooming is missing on the first and the second graphs.
Xiaomi Redmi Note 4, Android 7.0
Cool Bee Apr 29, 2019 at 01:35
Fair enough, Quokka 🙃
Poor performance on #3 and #5 charts
Nexus 5 / 6.0.1
Cool Bee Apr 23, 2019 at 22:12
It is really shitty :(
Filter dont has rounded corners, circle chart is to big
Android 9, HUAWEI P20 pro
Cool Bee Apr 17, 2019 at 12:25
You're totally right, some calculation mistakes, sorry ¯\_(ツ)_/¯
Some strange issue when filtering Pears. They become painted on chart until next few filter clicks.

No preventing vertical scroll on slider moves.
No label position animation and sliding points on the lines.
Long tap on single enabled line results in blinking.
Fast slider resize stuck dates to one side.
Zoom out has no icon.
Slider left are out of view.
Cool Bee Apr 17, 2019 at 19:57
That's true, app is not perfect, and there are many design details left to implement, but ¯\_(ツ)_/¯

About slider: my opinion is that area, selected by slider, must be mapped correctly to area, shown on big graph. So, if big graph has empty space on the left side, than selector must has this space too!
Inactive area are not fill full view.
Incorreect label state according to filters when zoom in -> zoom out.
Fearless Cry Apr 17, 2019 at 21:59
Weird selection animation
Cool Bee Apr 17, 2019 at 23:32
Well, you are right, that's a bug! ¯\_(ツ)_/¯
Hello. I tested your app on Innos d6000. This is the real device. I found some issues:
1. If I long tap on several buttons at 1 second, the charts will be empty. Move screen after it is very hard (video 1)
2. I can move selector such as the late date will be early than early date. (video 2). (Only pie chart)
Innos d6000 (API 22 - android 5.1.1),
Cool Bee Apr 18, 2019 at 16:23
Hello! Thank you for testing!
1. Interesting! Actually, I didn't test multiple touch events :D I think big charts are also acting weird while pressing with 5 fingers
2. Yes, found that bug too after sending app :(
2. Edge dates (on date line below the main chart) are not aligned to left and right respectively.
3. Wrong area shift/scale. See video. I move the preview area to the very edge of the chart, then move only right control. Afterward left edge is also shifted.
Umi Super, Android
Cool Bee Apr 20, 2019 at 21:40
2. :(
3. Yes, I was bad in math exactly in this part of code 🤓
Issues with touch handling:
Xiaomi A1 / Android 9
Cool Bee Apr 23, 2019 at 22:13
I'm bad in math sometimes 🧐
Fearless Cry Apr 17, 2019 at 22:01
Weird range selector (scrollbar)
Cool Bee Apr 17, 2019 at 23:33
Wrote my opinion about selector in comment #2
Anastasia Lisovskaya Apr 19, 2019 at 15:21
1. Wrong position of rectangle with selected values. By design it must overlap the vertical line when there is enough space to show selected circles under the rectangle.
2. Wrong toolbar color (must be white).
Cool Bee Apr 19, 2019 at 16:19
1. You're right! My fault, I made all floating labels in one style - at the left of vertical line. But only now saw on screenshots that some labels cover that line :(
2. My bad :(
The preview chart area is not aligned with the main chart view. The preview chart corners are not rounded as per designs.
Nexus 5 / Android 6.0.1
Cool Bee Apr 23, 2019 at 22:20
[+] good performance
[+] multitouch
[-] multitouch - many own unhanded scenarios and thus bugs like all chart are disappearing, which is critical to my opinion, though this issues may be easily fixed.

1. Dot stays on screen for the filtered line.
Umi Super, Android
Cool Bee Apr 20, 2019 at 21:38
1. Interesting one! Think about this dot as of memorial of disappearing lines that passed away 😢
4. Preview/ Control widget has no rounded corners. That requires clip path and cost some performance.
Umi Super, Android
Cool Bee Apr 20, 2019 at 21:44
4. And I was bad in attention to details in this part of preview widget 🧐 Anyway, it is easy to implement with canvas.drawPath (and path.drawArc)
5. Interesting folding animation on percentage chart.

- pie chart flickers when appear/disappear
- filtering data cause wrong drawing
- negative control zone
- wrong size (duplicated)
Umi Super, Android
Cool Bee Apr 20, 2019 at 21:46
5. Oh lol, on your phone it lags even more than on mine :D Yes, this pie is not feeling good himself sometimes
It's impossible to open zoomed state if clicking on certain areas in a tooltip (like value)
Xiaomi A1 / Android 9
Cool Bee Apr 23, 2019 at 22:18
It's impossible to select bar for 6 April
Xiaomi A1 / Android 9
Cool Bee Apr 23, 2019 at 22:15
plz buy full version for access to April 6th
Enable/disable animation noticeable slower for preview
Xiaomi A1 / Android 9
Cool Bee Apr 23, 2019 at 22:17
I was drinking too much brake fluid and animations seemed too fast for me 🏃‍♂️
Wrong range selected after zooming from 6(5) April - it zoomed to 3-4 april at center
Xiaomi A1 / Android 9
Cool Bee Apr 23, 2019 at 22:20
you got me, my tricky friend, I am centering selector after zoom despite of real selected day
Why pears bar so big? It even taller than appricots
Xiaomi A1 / Android 9
Cool Bee Apr 23, 2019 at 22:11
Pears just want to be as big as neighbors, and you are just killing their hopes, you monster 😿
Nobody added any issues yet...