Question 131431 in Xcode Question posted in
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Xcode – UIProgressView become transparent during setProgress with animated = true

In iOS15 UIProgressView changed behavior. When I use self.progress.setProgress(1.0, animated: true), it starts from transparent style. How to return to "alpha = 1" style.

  1. progress = 0

  2. progress = 20%

  3. progress = 70%

  4. progress = 90%

P.S.: progress.alpha = 1 does not work

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2

Answers


  1. Chosen as BEST ANSWER
    0

    The only way to change this opaque/transparent behavior is to use your own Timer.

    private let progressUnit = Progress(totalUnitCount: 20)

func startAnimate(){
        self.progressView.setProgress(0.0, animated: false)
        self.progressUnit.completedUnitCount = 0
        
        Timer.scheduledTimer(withTimeInterval: 0.5, repeats: true) { timer in
            guard self.progressUnit.isFinished == false else{
                timer.invalidate()
                return
            }
            
            self.progressUnit.completedUnitCount += 1
            let progressFloat = Float(self.progressUnit.fractionCompleted)
            self.progressView.setProgress(progressFloat, animated: true)
        }
    }

  2. 0

    properties
    progressImage and trackImage it worked fine as on previous iOS versions

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