Issue when I'm trying to draw gradient in swift
- by bagusflyer
I got an error when I was trying to draw gradient in Swift code:
GradientView.swift:31:40: Could not find an overload for '__conversion' that accepts the supplied arguments
Here is my code:
let context : CGContextRef = UIGraphicsGetCurrentContext()
let locations :CGFloat[] = [ 0.0, 0.25, 0.5, 0.75 ]
let colors = [UIColor.redColor().CGColor,UIColor.greenColor().CGColor,UIColor.blueColor().CGColor, UIColor.yellowColor().CGColor]
let colorspace : CGColorSpaceRef = CGColorSpaceCreateDeviceRGB()
let gradient : CGGradientRef = CGGradientCreateWithColors(colorspace, colors, locations)
//CGGradientCreateWithColors(colorspace,colors,locations)
let startPoint : CGPoint = CGPointMake(0, 0)
let endPoint : CGPoint = CGPointMake(500,500)
CGContextDrawLinearGradient(context, gradient,startPoint, endPoint, 0);
The problem is the CGGradientCreateWithColors takes CFArray not a normal Swift Array. I have no idea how to convert CFArray to Array and can't find anything in Apple's document. Any idea? Thanks
