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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 Mammoth Apr 28, 2019 at 19:05
– Good speed and performance.
– Latest dates are partially beyond the screen (the attached screenshot).
– The graph lines are cut when scaling (the attached video).
– Bonus goal is not implemented.
LG Nexus 5X, Android 8.1.0; Samsung Galaxy J7, Android 8.1.0
Fancy Starfish Apr 17, 2019 at 14:00
The legend is supposed to be moved to the opposite part of the chart when the cursor crosses the middle point. But you are right that the legend is currently moved without any animation so there is a room for improvements.
2. Edges of the charts are shown not correctly.
Fancy Starfish Apr 20, 2019 at 15:57
Agree, should've added some horizontal paddings.
1a. Same thing applied to all chart types except percent one.
When try to scroll, tooltip is showing. Just scrolling expected.
Nexus 5X, Android 8.0.0
Fancy Starfish Apr 20, 2019 at 15:51
Agree, the parent scroll container should not delegate touches to the child views while being scrolled.
1. Wrong Auto Wrap
Umi Super, Android, API 23
3. The small issue that could be applied to most applicants. When long click (filte others) are performed on fully shown data on "pears" animation are abrupt due to relative changes in heights of data. I spend two days fixing this thing. Devil is in the details. At the end of the video, I filter all except oranges. So relatively oranges height are quite big, so animation looks ok. But "pears" bar data is too small - respectively animation is almost instant.

You could compare to Dreamy Griffin author work. As you see relative values are eliminated during animation in favor of independent smooth relative to each other changes.
Umi Super, Android, API 23
Fancy Starfish Apr 17, 2019 at 16:13
Hello Dreamy Griffin. Thank a lot for testing my app, I mostly agree with all your comments. Good job with animating the small value series such as "pears".
4. There is no date, value swap animations on the date info popup. This issue applies to almost all other applicants.
5. I found this as a bad UX, but not an issue. Control area zone is too narrow and sometimes it very difficult to grab it. But It is far better than if this zome became irreversibly blocked (regretfully, this issue exists amongst some other participants here)
Good performance app, but without bonus part, you are in my 'vote up' list. Vote up mine, if it's good enough
One Plus X
Fancy Starfish Apr 20, 2019 at 15:49
Thanks! You got a pretty decent app, only the performance of the last chart could be improved. You have my vote.
Anastasia Lisovskaya Apr 19, 2019 at 15:40
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.

Seems that almost nobody implemented that.
Anastasia Lisovskaya Apr 19, 2019 at 15:44
1. No white-to-transparent gradient at the top when graph is animated.
2. Y axis animation is far from perfect.
Anastasia Lisovskaya Apr 19, 2019 at 15:45
Graph has no padding at the right when scrolled to the right position (against design)
Fancy Starfish Apr 20, 2019 at 15:57
Agree, should've added some horizontal paddings.
When try to move one part of selector out of bound and then try to return this part back, it doesn't follow the touches.
Nexus 5X, Android 8.0.0
Fancy Starfish Apr 20, 2019 at 15:55
Sorry, I haven't really understood what you mean. If you don't release the finger while dragging the handle, it should continue following your gestures. I think Android has the same behavior with its standard components.
Jumpy date range changing of the line charts
SGS5 / 6.0.1
Strange transition from Apples / Oranges to Pears in the third chart
SGS5 / 6.0.1
Slow date range changing of the last chart
SGS5 / 6.0.1
Nobody added any issues yet...