App crash after IOS 13
My app is crashing on startup after iOS 13. After some debugging I found that calling Start() on a System.Timers.Timer in AppDelegate causes the app to crash. This never happened before iOS 13. What...
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iOS Binding Unity as a library
Hi all, I don't even know where to start Since alpha 2019.3 Unity offers the feature "Unity as a Library" https://blogs.unity3d.com/2019/06/17/add-features-powered-by-unity-to-native-mobile-apps/ which...
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CarouselView doesn't set its position, CurrentItemChanged and PositionChanged...
I have a gallery app. There is a grid with several images in it. When a user clicks on the image, it displays the fullscreen version of it using a carousel. The problem is that even though I set the...
View ArticleHow to add Payment gateway SDK to xamarin.Android and Xamarin.iOS
My gateway provider don't have a SDK for xamarin forms.They are providing seperate SDK for native android and iOS. How can I add sdk file to xamarin android and ios??? Thanks in advance.
View ArticleHow to avoid ItemTapped when tapping a specific element on UWP ?
Hi all, I have a ListView menu which raises an OnItemTapped to navigate to next page. Yet, I also have an image in each cell to mark the item as favorite. On Android (cannot test on iOS), tapping the...
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Spin wheel UI in Xamarin forms
Hi, There is this new client for us, who wants a spin wheel contest in the app, the spin wheel would have coupon codes and offers. Similar to a Roulette spinner as shown below. Do we have any plugins...
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Adjust position of image on navigation page to overlap navigation bar
Hi, I want to place an icon at the top of my page and slighly overlap the bottom of the navigation bar as per the image. Does anyone have any ideas? I;ve tried negative margin but the image gos behind...
View ArticleCross Platform
Good evening, I would like to ask you if it is possible to use mvvm with xamarin.Forms to have common code for android and WPF (with xamarin.Forms.Platform.WPF)
View Articlexamarin forms schedule notification
Hi to all, I have a xamarin forms android app. I want in my app, after press a button to schedule a notification appears in 30 minutes for ex. is this possible
View ArticleHow to change event name in a Xamarin Android Binding
I am creating a Xamarin Android Binding of an android native library.What I have done so far is created .aar file and added into Jar folder of Xamarin Android Binding project but when I tried to build...
View ArticleSystem.NullReferenceException: Object reference not set to an instance of an...
` public void OnDataChange(DataSnapshot snapshot) { if (snapshot.Value != null) { var child = snapshot.Children.ToEnumerable(); ModelPosts.Clear(); foreach (DataSnapshot UserModels in child) {...
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How erase all provisions files from Xamarin projects
Hello! When I try to build app in Dedug Mode I have this error: /Library/Frameworks/Mono.framework/External/xbuild/Xamarin/iOS/Xamarin.iOS.Common.targets(3,3): Error: The specified iOS provisioning...
View ArticleHow to redirect from drawer layout menu to different pages in Xamarin forms?
Hello, I'm new to Xamarin forms, I've created a drawer layout but unable to redirect on click of menu written in drawer layout . Please help me Thanks in adance
View ArticleRemove page from Navigation
In my app structure is like below, List Page -> Detail Page -> Edit Page and in edit page there is button "Delete" which removes data from database. Now my problem is to navigate user from Edit...
View ArticleXamarin Forms Map does not display in Android Emulator
I'm having an issue getting any Xamarin.Forms.Maps project to run successfully on the Android Emulator that comes with Visual Studio 2019 Community. I have enabled Google Play Services in the Android...
View ArticleTMS-90426: Invalid Swift Support for Xamarin Forms Project for Test flight build
Hi, I am getting "ITMS-90426: Invalid Swift Support - The SwiftSupport folder is missing. Rebuild your app using the current public (GM) version of Xcode and resubmit it." issue for TestFlight build...
View ArticleXamarin.ios App rejected
The message came from apple is: We were still unable to review your app as it crashed on launch. We have attached detailed crash logs to help troubleshoot this issue. Logs:...
View ArticleVS2019 iOS Simulator throwing fatal error message
This was working and not sure what I have broken but when I try to debug using iPhoneSimulator and the iOS Simulator in windows enviroment I am getting a error stating "A fatal error occurred while...
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Android button rendering problems
I've been working on my app and primarily developing and testing with iOS. Recently I started looking at it on Android as well and immediately ran into a number of problems, mostly around buttons. I've...
View ArticleDerive a class from UIAppearance for custom views
I'm trying to "extend" the properties offered by the default implementation of UIAppearance. I've been able to expose some properties in the standard UIKit objects (e.g. add a "Radius" property for...
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