iOS 中的辉光或太阳光效果

Question

I need Glow or Sun light effect on my UIViewController(Some thing like this : http://www.thewhitegoddess.co.uk/the_elements/the_planets/images/sun.jpg ).

I try this https://github.com/thesecretlab/UIView-Glow ( http://www.secretlab.com.au/blog/2012/06/23/glowing ) and drop shadow effect on layer but both when I increase the size of effect it not working.

please guide me and provide solution. Thank in advance.

Answer 1

Here is an example of glow that you could use, you need to mix a bit with the colors and the glow, but it´sa start for you. I have also included a animation example if you need it:

With animation:

func makeViewShine(view: UIView) {
    view.layer.shadowColor = UIColor.yellow.cgColor
    view.layer.shadowRadius = 10.0
    view.layer.shadowOpacity = 1.0
    view.layer.shadowOffset = .zero
    UIView.animate(withDuration: 0.7, delay: 0, options: [.autoreverse, .curveEaseInOut, .repeat, .allowUserInteraction], animations: {() -> Void in
        view.transform = CGAffineTransform(scaleX: 1.2, y: 1.2)
        }, completion: {(finished: Bool) -> Void in
            view.layer.shadowRadius = 0.0
            view.transform = CGAffineTransform(scaleX: 1.0, y: 1.0)
    })
}

Without animation:

func makeViewShine(view: UIView) {
    view.layer.shadowColor = UIColor.yellow.cgColor
    view.layer.shadowRadius = 10.0
    view.layer.shadowOpacity = 1.0
    view.layer.shadowOffset = .zero
}

To use it, simply call the method and pass the view.