How do I implement a legend click event?

[monkeyRing]

hello , at all.

just as the under gif

The Preview

Can someone help me or can you give me some ideas?

[monkeyRing]

[liuxuan30]

hmm. this is a tough task.. You need to consider using the animator and animatorJob classes. Using CoreGraphics to achieve these animations. The library does not support this yet.

[monkeyRing]

@liuxuan30 the animations isn't important curently. i just want achieve onclick the legend to hide corresponding bar. have you some ideas?

[ezamagni]

You could simply implement your custom legend in a separate view, mimicking the look and feel of Chart's one.

[monkeyRing]

@ezamagni ha , I do think so, but the data source processing more difficult. thank you for your answer. :)

[liuxuan30]

@monkeyRing Oh you are not asking animations.. Then it's much easier lol.
I used to write a UIScrollView for the legends, and you can do whatever you like.. Currently, the legend class is based on CoreGraphics, so you have to write a lot of things to make highlight and detect the touch event, which I don't recommend..
Just use a new view and read the data you need to create the legend and some delegates to synergy with chart library seems doable and flexible, but it is a descent amount of work.