I am using SVGKit to display Images
https://github.com/SVGKit/SVGKit/
How do I apply fill color for the SVGImage
let namSvgImgVar = SVGKImage(named: namSvgImg)
namSvgImgVar.setFillColor()
want to implement this setFillColor function
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4 Answers
Wish Swift adds this feature in their next release
After a nightmare, I came up with this solution for
Using SVG in Swift which fits automatically for the View and can add fill colors to it in just one line of code
This is for all who don't wish to struggle like me
|*| Usage :
let svgImgVar = getSvgImgFnc("svgImjFileName", ClrVar : ClrVar)
// Can use this Image anywhere in your code
|*| Steps :
I used the simple SwiftSVG library for getting UIView from SVG File
|*| Install SwiftSVG Library
1) Use pod to install :
// For Swift 3
pod 'SwiftSVG'
// For Swift 2.3
pod 'SwiftSVG', '1.1.5'
2) Add framework
Goto AppSettings
-> General Tab
-> Scroll down to Linked Frameworks and Libraries
-> Click on plus icon
-> Select SVG.framework
3) Add below code anywhere in your project
func getSvgImgFnc(svgImjFileNameVar: String, ClrVar: UIColor) -> UIImage
{
let svgURL = NSBundle.mainBundle().URLForResource(svgImjFileNameVar, withExtension: "svg")
let svgVyuVar = UIView(SVGURL: svgURL!)
/* The width, height and viewPort are set to 100
<svg xmlns="http://www.w3.org/2000/svg"
width="100%" height="100%"
viewBox="0 0 100 100">
So we need to set UIView Rect also same
*/
svgVyuVar.frame = CGRect(x: 0, y: 0, width: 100, height: 100)
for svgVyuLyrIdx in svgVyuVar.layer.sublayers!
{
for subSvgVyuLyrIdx in svgVyuLyrIdx.sublayers!
{
if(subSvgVyuLyrIdx.isKindOfClass(CAShapeLayer))
{
let SvgShpLyrIdx = subSvgVyuLyrIdx as? CAShapeLayer
SvgShpLyrIdx!.fillColor = ClrVar.CGColor
}
}
}
return svgVyuVar.getImgFromVyuFnc()
}
extension UIView
{
func getImgFromVyuFnc() -> UIImage
{
UIGraphicsBeginImageContext(self.frame.size)
self.layer.renderInContext(UIGraphicsGetCurrentContext()!)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image!
}
}
4 Comments
Narasimha Nallamsetty
Hi @Sujay, I'm getting below errors in the console. Please let me know the solution. linearGradient is unsupported. For a complete list of supported elements, see the
allSupportElements variable in the SVGParserSupportedElements struct. Click through on the elementName variable name to see the SVG tag name.Narasimha Nallamsetty
This is another error in the console. stop is unsupported. For a complete list of supported elements, see the
allSupportElements variable in the SVGParserSupportedElements struct. Click through on the elementName variable name to see the SVG tag name.
Pavan Kumar Idapalapati
Sujay, this code is not working in swift 5. Please convert your code snippet to swift-5
Ayman
@NarasimhaNallamsetty did you find a solution for this error
if you have any id for the SVG image, you can fill the colours with respect to the ID.
let image = SVGKImage(named: "iconName")
let svgIMGV = SVGKFastImageView(frame: self.imgView.frame)
svgIMGV.image = image
svgIMGV.fillTintColor(colorImage: UIColor.red, iconID: "Bank")
// Add in extension SVGKImageView
extension SVGKImageView {
func fillTintColor(colorImage: UIColor, iconID: String) {
if self.image != nil && self.image.caLayerTree != nil {
print(self.image.caLayerTree.sublayers)
guard let sublayers = self.image.caLayerTree.sublayers else { return }
fillRecursively(sublayers: sublayers, color: colorImage, iconID: iconID)
}
}
private func fillRecursively(sublayers: [CALayer], color: UIColor, iconID: String, hasFoundLayer: Bool) {
var isLayerFound = false
for layer in sublayers {
if let l = layer as? CAShapeLayer {
print(l.name)
//IF you want to color the specific shapelayer by id else remove the l.name == "myID" validation
if let name = l.name, hasFoundLayer == true && name == "myID" {
self.colorThatImageWIthColor(color: color, layer: l)
print("Colouring FInished")
}
} else {
if layer.name == iconID {
if let innerSublayer = layer.sublayers as? [CAShapeLayer] {
fillRecursively(sublayers: innerSublayer, color: color, iconID: iconID, hasFoundLayer: true )
print("FOund")
}
} else {
if let l = layer as? CALayer, let sub = l.sublayers {
fillRecursively(sublayers: sub, color: color, iconID: iconID, hasFoundLayer: false)
}
}
}
}
}
func colorThatImageWIthColor(color: UIColor, layer: CAShapeLayer) {
if layer.strokeColor != nil {
layer.strokeColor = color.cgColor
}
if layer.fillColor != nil {
layer.fillColor = color.cgColor
}
}
}
1 Comment
dkb
Welcome to SO, it is good to add code in support to your answer, also add some explanation with it, which will help SO member and answer will be well received.
In iOS 13 withTintColor method allows you to apply a color to your image. Let's look at the below snippet code:
UIImage(named: "MY_IMAGE")?.withTintColor(UIColor.red)
Comments
Another way is to extend WKWebView:
extension WKWebView {
func displayImage(imageUrl: String) {
let path: String = imageUrl
if let url = URL(string: path) {
self.load(URLRequest(url: url))
}
}
}
2 Comments
HangarRash
The question is asking how to set a fill color for the SVG. Can you clarify how your answer solves that question?
Rémi B.
This does not provide an answer to the question. Once you have sufficient reputation you will be able to comment on any post; instead, provide answers that don't require clarification from the asker. - From Review