iOS Widget - Trim not drawing

Question

Created Jan ’21

Replies 8

Boosts 0

Views 1.6k

Participants 5

I am trying to make a circular progress bar for my widget, I am using this code to do so. On the base app content view, everything comes out how I want it to. But when I try the same view on my widget, Circle().trim seems to not allow a drawing to happen and the circle disappears completely.

I have seen a couple of posts about this on the forums. I am currently running on Xcode 12.3

Code Block      ZStack{
      Color(red: 0, green: 0, blue: 0)
      ZStack {
        Circle()
          .rotation(.degrees(112))
          .trim(from:0.0, to: 0.87)
          .stroke(style: StrokeStyle(lineWidth: 8.0, lineCap: .round))
          .opacity(0.3)
          .foregroundColor(Color.gray)
          .frame(width: 120, height: 120, alignment: /*@START_MENU_TOKEN@*/.center/*@END_MENU_TOKEN@*/)
         
        Circle()
          .rotation(.degrees(112))
          .trim(from:0.0, to: 0.2)
          .stroke(style: StrokeStyle(lineWidth: 8.0, lineCap: .round, lineJoin: .round))
          .foregroundColor(Color.white)
          .frame(width: 120, height: 120, alignment: /*@START_MENU_TOKEN@*/.center/*@END_MENU_TOKEN@*/)
           
         
      }
      .padding()
  }

Answered by Claude31 in 655396022

Sorry, I did test on app, not on widget.
I tested in widget code, Xcode 12.3, iOS 14.3 simulator: it works OK.

What do you get exactly ? No circle ? Only one ?
Could you show the complete widget code ?

Boost

Answer 1

Claude31 OP

Jan ’21

I tested your code with Xcode 12.3, in simulator.

No issue, I see the 2 circles, grey and white.

Is your app only doing this drawing or are there other parts of code you didn't show ?

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Answer 2

Claude31 OP

Jan ’21

Accepted Answer

Sorry, I did test on app, not on widget.
I tested in widget code, Xcode 12.3, iOS 14.3 simulator: it works OK.

What do you get exactly ? No circle ? Only one ?
Could you show the complete widget code ?

0

Answer 3

ericmdiaz07 OP

Jan ’21

I am using the default widget code, only modifying the Entry view body as seen here. Here is exactly what happens @claude31

http://bit ly/3egWddg

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Answer 4

workoutaholic OP

Feb ’21

I may be missing something but why is this solved?

I have not been able to get trim to work on my project in a widget so started a new project, added a widget, confirmed it compiled and showed the default time text, I copied the code above and ran again and there is no circle trim to be seen.

I'm seeing two things.

The code ".rotation(.degrees(112))" seems to break the view but ".rotationEffect(Angle(degrees: 112.0))" does not...but I can not say that a rotation occurs because any trim less than 0 to 1 hides the entire stroke. So I see a full circle if I leave trim out, or do trim 0 to 1, but any value less than 1 hides the entire stroke.

Running XCode 12.3 iOS simulator 14.3.

1

Answer 5

RahulRS OP

Feb ’21

Have you tried running it on a real device rather than Simulator or SwiftUI Preview?

I had a similar problem, not with trim, but with opacity Any opacity value less than 1.0 hides the view in Simulator and SwiftUI Preview. But it worked fine on real device.

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Answer 6

workoutaholic OP

Feb ’21

Thank you RahulRS...it does work on a device, just not on simulator. Also confirmed the simulator bug persists to XCode 12.4 since I had started the update prior to seeing the reply to test on device.

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Answer 7

RahulRS OP

Feb ’21

Still not fixed in Xcode 12.5 beta 2 (12E5234g)

I have filed feedback regarding this. FB8986928

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Answer 8

rasulfahad OP

Mar ’22

I have the same oriblem. Using trim on my Shape inside a widget does not work.

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