please tell me how do i handling these problems，thanks！

[yushan023]

how do i custom value different colors in LineChart？
and how do i custom unit in chartView in x-axis or y-axis？ for example UI

[liuxuan30]

Please check out ChartsDemo for the unit, seems a formatter is enough.
For the color, if you are talking about highlight, it's highlightColor. If you only want specific color is different, check out circleColors

[yushan023]

For the color,it's not highlightColor. It's normalColor, it can show different color on chartView in the same time.

[liuxuan30]

well to me the last circle is highlighted. anyway, circleColors is the answer

[yushan023]

thanks a lot. I find the circleColors is Array.But the problem is the last circle must be shining.
i won't set hightlighted.can you teach me?

[liuxuan30]

"circleColors is array" then why don't you set the last color as orange.. am I missing anything or you don't think about it

[yushan023]

First, I didn't find circleColors before this property.Thanks you for helping me before.
Not the last one is yellow.Sometimes it is in the middle.This is no problem.

But I have a problem not solved.
"circleHoleColor" can only be set once.Once set this property, the curve on the other round also become this attribute.
setting "circleHoleColor" Which means that light.I only want a yellow light.And you said the highlightColor of is not what I want.

[liuxuan30]

    /// The radius of the drawn circles.
    var circleRadius: CGFloat { get set }

    /// The hole radius of the drawn circles.
    var circleHoleRadius: CGFloat { get set }

    var circleColors: [NSUIColor] { get set }

    /// - returns: the color at the given index of the DataSet's circle-color array.
    /// Performs a IndexOutOfBounds check by modulus.
    func getCircleColor(_ index: Int) -> NSUIColor?

    /// Sets the one and ONLY color that should be used for this DataSet.
    /// Internally, this recreates the colors array and adds the specified color.
    func setCircleColor(_ color: NSUIColor)

    /// Resets the circle-colors array and creates a new one
    func resetCircleColors(_ index: Int)

    /// If true, drawing circles is enabled
    var drawCirclesEnabled: Bool { get set }

    /// The color of the inner circle (the circle-hole).
    var circleHoleColor: NSUIColor? { get set }

    /// True if drawing circles for this DataSet is enabled, false if not
    var drawCircleHoleEnabled: Bool { get set }

Which version are you using? As you see, lots of properties to use, so maybe try them to figure out what best for you

[yushan023]

I want to achieve this.

If is yellow must use "circleHoleColor" this property.But once set this property, the red will also corresponding change.
I don't want to let the red also have become "circleHoleColor" this property, I just want to set this property "circleHoleColor" yellow.
At present, I can only be implemented as such, the following figure.

Once use "circleHoleColor" this property like this.

[liuxuan30]

Ah I see. circleHoleColor is not array, it's just the hole color. Guess you have to override drawCircles to get what you want.

[yushan023]

I think override "drawCircles" this method also can not solve Because the yellow is not necessarily at the end.Perhaps can use pictures instead of? To use a different picture