Radial Gradients

[tbaranes]

Close #508

Currently in this PR:

• New enum GradientMode: currently supporting linear and radial
• Working version of radial gradient (basic configuration only)
• Moved "gradients" example to their own section (playground example), + add of radial gradients example
• Documentation and CHANGELOG

Currently missing:

• Add startPoints (and custom) support to radial gradient

Any feedbacks welcome :)

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[tbaranes]

There's still rooms for improvements but I think we can already merge this then add the missing features in a future PR (support for startPoint), helps welcome 😬

[gkye]

Could we keep the name configurePoints or configureGradientPoints? It's a lot more readable imo

[tbaranes]

I’d like to drop the comfigure because it doesn’t change the layer anymore, it will simply returns the points. Beside that, I’m completely open for another name!

[tbaranes]

Maybe gradientPonts?

[gkye]

Okay that makes sense. gradientPoints should work 😄

[JakeLin]

Great job👍, this is a very useful feature, please merge in💪.

[JakeLin]

I think we can use private now

[tbaranes]

Can't do that, it's still in use in the GradientDesignable extension used for the navigation bar, otherwise, I could move it, but it's quite useful to have it in the layer extension 😬

[JakeLin]

Since all methods are private, we can just mark GradientDesignable as private and remove the others.

[tbaranes]

In fact, that's not working in swift, you can try this in a playground as an example:

final class Test {

}

private extension Test {

    func test() {
        print("test")
    }

}

let test = Test()
test.test()

You can call the method from the private extension from outside even if the extension is private, that's why I moved the private to the methods instead of the extension.

[JakeLin]

@tbaranes interesting, I didn't know that 🤣

[JakeLin]

@tbaranes @gkye thanks, guys, I merged this useful feature in now 👏