CODEWITHSUNDEEP
swiftcore-graphics
William Hu
William Hu

Reputation: 16149

Draw solid and dashed line in one context

I want to draw a dashed line and a solid line in one context. But if I draw a dashed line first, the second line is also a dashed line. So how to clean up context.setLineDash? I tried context.beginContext(), it doesn't help.

Here is the code:

if let context = UIGraphicsGetCurrentContext() {
    // The first line
    let startPoint = CGPoint(x: 20, y: rect.height/2)
    let endPoint = CGPoint(x: rect.width - 40, y: rect.height/2)
    context.move(to: startPoint)
    context.addLine(to: endPoint)
    context.setLineWidth(1)
    context.setLineDash(phase: 0, lengths: [4, 4])
    context.setStrokeColor(UIColor.progressDashLineColor.cgColor)
    context.strokePath()
    // Second line
    let startPoint1 = CGPoint(x: 20, y: rect.height/2 + 5)
    let endPoint1 = CGPoint(x: rect.width-120, y: rect.height/2)
    context.setStrokeColor(UIColor.mainColor.cgColor)
    context.setLineWidth(5)
    context.move(to: startPoint1)
    context.addLine(to: endPoint1)
    context.setLineCap(.round)
    context.strokePath()
}

Upvotes: 4

Views: 1114

Answers (1)

nathangitter
nathangitter

Reputation: 9777

Set the line dash to an empty array before drawing your solid line.

context.setLineDash(phase: 0, lengths: [])

From the CGContext documentation:

Pass an empty array to clear the dash pattern so that all stroke drawing in the context uses solid lines.

Documentation Link

Upvotes: 5

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