Annotations are glitching on iOS

[Voystar Software]

I have a MAUI application that uses SfRadialGauges to display values. Recently the values started glitching. When they are being changed fast, some of the numbers in the value are disappearing. To be more exact, if I have a counter that is being increased 1 by 1, then the values are appearing like this:

100

10

102

1

104

105

10

107

It only happens on iOS. Windows and Android builds work fine. It does not happen when values are static, only when changing. I updated to newest 28.1.37, and I have .NET9. We have this gauges for at least a year as far as I know and this issue did not exist. Please investigate and fix this issue. The values are being updated fast, faster than once per second.

[Voystar Software]

I have checked some older builds, and on .NET8 everything was working fine, the issue appeared after changing the app to run .NET9.

[Daniel Blackmon]

I have a somewhat related issue running build 28.1.36 on .NET on iOS. This:

 <gauge:RadialAxis.BackgroundContent>

             <Image Source="axixbackground_empty.png" />

</gauge:RadialAxis.BackgroundContent> -->

Will cause it no load the page at all. I just dies silently under the hood and the iOS watchdog timer will eventually kill te

[Vishal Omprasad]

Hi Voystar,

Regarding “Annotations are glitching on iOS”:

Based on the provided details, we have checked the reported query with a simple sample on iOS platform. However, we were unable to replicate the reported scenario on our end. In the sample, we updated the Annotation Content dynamically based on the Pointer’s Value. We have attached the tested sample along with the tested output video below for your reference.

Could you please check the attached sample and let us know whether you are still facing the same issue? If the problem persists, kindly modify our sample to reproduce the issue and share with us along with the following details:

• Steps and scenario where the issue is occurs.

• A video demonstrating the issue.

• iOS version and device details

This additional information will enable us to check the scenario more effectively and provide you a better solution.

Regards,
Vishal O.

Attachment: RadialGaugeAnnotation_ab92ab7c.zip

[Vishal Omprasad]

Hi Daniel,

Regarding “page not loaded when adding RadialAxis.BakgroundContent”:

Based on the provided details, we have checked the reported query with a simple sample in iOS platform. However, we are unable to replicate the reported scenario on our end. The page loaded as expected without freezing or crashes when setting BackgroundContent to an image (axisbackground.png). We have attached the tested sample below for your reference.

Additional details:

1. Tested  SfGRadialGauge version: 28.1.36 and latest (28.1.37)

2. Tested iOS version: iOS 17.5 and iOS 18.1

Please check the attached sample and let us know whether you are still facing the same issue. If the problem persists, kindly modify our sample and revert to us with an issue reproducible sample application (or modifications to our attached sample) where the issue can be reproduced, along with the replication procedure, a video (or) screenshot demonstrating the freeze or crash, iOS version and device details, etc., This additional information will enable us to check the scenario more effectively and provide you a better solution.

Regards,
Vishal O.

Attachment: RadialGaugeBackground_c4b75309.zip

[Voystar Software]

How can I continue this topic in private messages? I can't share details on an open forum.

I have created a support ticket and sent information there.

[Vishal Omprasad]

Hi Voystar,

Thank you for creating a support ticket. We will continue the conversation and share further details privately through the ticket.

Regards,
Vishal O.