Android Chart – Developer Challenges

Info

Author

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.

Voting

1331

Issues

Fair Mammoth Apr 28, 2019 at 12:37

– Vertical scrolling interrupts other gestures (e.g. horizontal scrolling and scaling), it kills the experience.
– Bonus goal is implemented, however parts of expected animations are missing.

LG Nexus 5X, Android 8.1.0; Samsung Galaxy J7, Android 8.1.0

Fancy Starfish Apr 17, 2019 at 15:37

The scroller is sometimes stuck while being dragged.

0:05

Nexus 5 / Android 6.0.1

Dreamy Penguin Apr 17, 2019 at 15:46

It's because you're dragging down at ScrollView - drag perfectly horizontal, everything will be nice. With this feature you can scroll down from any point (not just from spaces between charts)

Large Croc Apr 17, 2019 at 16:40

Chart at the right side blinks and X axis has a glitch while drag a slider

0:11

Xiaomi mi5/Android 8

Modest Bear Apr 17, 2019 at 17:18

No points "run" animation on selection change. It is shown on the demo gif. Also, no point card position animation.

0:06

Redmi note 5 / Android 8.1.0

Keen Croc Apr 18, 2019 at 12:02

Popup menu doesn't have shadow behind it (not matching design spec)

Dreamy Penguin Apr 18, 2019 at 12:07

take device with android>=21 and it will be

Xiaomi A1, Android 9

Eager Wolf May 1, 2019 at 16:20

Lines are crisp and low quality in graphs #1 and #2.

Performance is low when changing data range in graph #1.

Samsung Galaxy S4, Android 5.0.1

Large Croc Apr 17, 2019 at 16:30

Charts not fully scaled by Y azis

Android 8 Xuaomi mi 5

Dreamy Penguin Apr 17, 2019 at 18:49

It's axis adjustment: to preserve "round" numbers and exactly 6 lines, you have to increase interval

Large Croc Apr 17, 2019 at 16:37

Y axis has a glitch while drag a slider

0:08

Xiaomi mi5/Android 8

Keen Croc Apr 18, 2019 at 11:59

Even if scrolling perfectly horizontally (without the scrollview) it doesn't work correctly

0:04

Dreamy Penguin Apr 18, 2019 at 12:10

No, you're still scrolling down (take a look at code of ScrollView's onInterceptTouch). But I am agree that it can be implemented other way

Perfect Seal Apr 18, 2019 at 08:01

1. distance and number of grid lines change incorrectly 2.
X axis changes after "TouchUp"

Android 6

Dreamy Penguin Apr 18, 2019 at 11:34

1 - why do you think so? 2 - no need to say the same twice

Perfect Seal Apr 18, 2019 at 08:01

2.
X axis changes after "TouchUp"

Android 6

Dreamy Penguin Apr 18, 2019 at 11:33

Is this an issue? It should be so - on designs 6 time points, so your chart should also contain 6 points after scroll. What is the question?

Keen Croc Apr 18, 2019 at 12:01

Weird animations of the Y axis (doesn't match the video example from Telegram, or the 1st stage winner's app), text is cut off during the animation (see the video above)

Keen Croc Apr 18, 2019 at 12:03

Text isn't centered vertically