Image data is lost after device rotation on iOS

Question

I have used SfSignaturePad in our app and there's one problem on iOS - when the device is rotated the underlying data is getting cleared but the visible signature stays on the screen. Now when the user is first doing the signature and then rotating the device before saving he will save empty image.

This problem can be observed on one of your samples:

https://www.syncfusion.com/downloads/support/directtrac/general/ze/SignaturePadSample-641649167.zip

When something is drawn on signature pad and rotated then pressing the button shows that image is empty.

Suganya Sethuraman · Answer

Hi Bartlomiej,We have already resolved the reported issue. Please update the SfSignaturePad NuGet to the most recent version (19.4.0.48).Please have a modified sample for your reference,Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/SignaturePadSample1465691730 Please check and let us know if you have any concerns.Regards,Suganya Sethuraman.

Bartlomiej Pater · Answer

Hello Suganya,I have previously upgraded packages in this sample but now I have checked the new sample and it still does not work for me. I have tested it on old ipad pro with iOS 15.3. I'm attaching the video to show what's happening after rotating the screen.Please verify this on iOS device or simulator (it behaves the same way thereBest regards,BartłomiejAttachment: IMG_2863.MOV_ba81adcf.zip

Suganya Sethuraman · Answer

Hi Bartlomiej,Currently, we are checking the reported issue in both sample and source level. We will update the details on February 10, 2022.Regards,Suganya Sethuraman.

Bartlomiej Pater · Answer

Hello,Any news on this?Best regards,Bartłomiej

Suganya Sethuraman · Answer

Hi Bartlomiej,We were able to reproduce the reported issue and we have confirmed this as a bug and logged a defect report. You can track the status of the bug from the below link.Link: https://www.syncfusion.com/feedback/32755 We will provide a patch for this issue on March 3, 2022. We appreciate your patience until then.Note: The provided feedback link is private, and you need to log in to view this feedback.If you have any more specifications/precise replication procedures or a scenario to be tested, you can add it as a comment in the portal.Regards,Suganya Sethuraman.

Suganya Sethuraman · Answer

Hi Bartlomiej,We have fixed the reported issue. Please have the custom assembly from the below link.Custom Assembly: https://www.syncfusion.com/downloads/support/directtrac/general/ze/SfSignaturePadIssue228751530 Assembly Version: 19.4.0.54Note: Please refer the below link to apply the custom assemblyhttps://www.syncfusion.com/kb/8279/how-to-apply-the-custom-assemblies-when-configured-the-project-with-syncfusion-nuget Currently, we have patch support only for the main and service pack release version, not for the weekly NuGet release. So only provided an assembly with 19.4.0.54 version.This fix will be included in our upcoming weekly release which is expected to roll out on March 15, 2022. Could you please check this fix with your application and let us know, whether the issue is resolved or not.Regards,Suganya Sethuraman.

Suganya Sethuraman · Answer

Hi Bartlomiej,Thanks for your patience.Query: “After a device rotation on iOS, image data is lost in SfSignaturePad"We have included the fix in our latest Weekly NuGet release v19.4.0.56 which is available for download (https://www.nuget.org/ ). We thank you for your support and appreciate your patience in waiting for this update. Please get in touch with us if you would require any further assistance.Regards,Suganya Sethuraman.