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Hello,
I am developing an application with Xamarin forms. I do not have a problem on the Android side, but on the iOS side, I am encountering the error I conveyed in the attachment when switching between pages. I get the data by making a web service connection during the transitions between the pages. I've been dealing with this problem for days but can't find a solution. Thank you in advance for your ideas and help.
Usually, this error is related to the incorrect use of awaiting asynchronous tasks, you could check your code. In the StackTrace of exception.txt, it is thrown by DevExpress.XamarinForms.Navigation.iOS.XXX. DevExpress is a third-party tool, For help with third party projects like DevExpress please see the contact info on the owner's site.
First of all, thanks for answering. I am doing asynchronous tasks as in the screenshot.
I did not encounter any problems on the android side regarding the use of asynchronous tasks, but on the ios side I have this problem. I have no idea unfortunately.
I will also contact Devexpress, but this problem on the iOS side seems to be related to the tasks.
It looks correct, and it works on Android platform, you could try to check if you are missing something when using the DevExpress. Focus on checking TabsDataProvideriOS (I didn't find the API) and the datasource of TabViewController.
In addition, would you mind sharing more codes about the MainContent, activator? Or sharing a basic minimal reproducible sample with me ? You could upload it to GitHub and attach the link here. It's helpful to investigate the issue.
Hello there,
I'm sorry for the late reply.
I thought the problem was in the asynchronous tasks that I was running between pages, but I was accessing the image file via a url along with asynchronous tasks when switching between pages, which caused the tasks to stop.
Thank you very much for directing me to the source of the problem.
I would like to ask you one more question.
Do you know what Xamarin.forms applications support up to the latest version of iOS?
The application that I published in the app store does not work well on a device above 15.2. The application opens but does not perform web service requests. Any idea about this? Can you help me?
It seems that you solved this issue, you could write an answer to summarize the solution.
Please ask one question at a time, feel free to post new thread for the question, and you could mention me with new thread link.
Thanks for your reply. I stopped getting my image files via a url and my asynchronous tasks ran without issue.
