How to subclass a control on xib file
I have a view with several controls. I'm doing all this stuff on the xib file(xcode) but now I need to subclass one of the controls(UISlider). How can I do this without creating a new control from my...
View ArticleDoes Map Control need API Keys / Usage Limits
Does the Xamarin Forms Map Control (https://developer.xamarin.com/guides/cross-platform/xamarin-forms/user-interface/map/) require any SDK keys, eg Google Maps, and related are you subject to any usage...
View ArticleXamarin.Forms.Platform.WinPhone.FormsApplicationPage.OnDeactivated null...
When the application loses his focus (e.g. open the browser) following exception will be thrown: System.NullReferenceException: Object reference not set to an instance of an object. at...
View ArticleBug in Picker? Observing weird behavior (code included)
I am having some trouble updating a Picker with new content and wondering if I'm experiencing a bug? I have a xaml page with two pickers; Picker1 and Picker2. They are bound to a viewmodel using the...
View ArticleAndroid keyboard and the ContentPage view collapsing/expanding issue w/...
Hi, after I upgraded to 1.5.1 and getting material design in place, my app is working and looking great in Android. HOWEVER the view when focussing or unfoccusing the keyboard does not work as...
View Articlesystem.argumentexception: an item with the same key has already been added
I know this is avery general error, but I suddenly cannot debug my xamarin forms application anymore on my iOS device: system.argumentexception: an item with the same key has already been added any...
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ProtectedData.Protect throws DllNotFound(crypt32.dll) exception
I am trying to use the ProtectedData class from System.Security.Cryptography to Protect and Unprotect some data. Both calls throw a DllNotFoundException: System.DllNotFoundException: crypt32.dll at...
View ArticleThe "XamlCTask" task failed unexpectedly.
Hello Team, I am facing this The "XamlCTask" task failed unexpectedly. problem after adding the xamarin.forms.maps package to my application. Waiting for your response.
View ArticleError uploading to Xamarin Test Cloud
Hi, I'm trying to get started with Xamarin Test Cloud and my iOS app. I've followed the iOS Quickstart guide and succesfully created a test locally using the iOS simulator. So far, everything is...
View ArticleJson Data Image Listview
Hello i want to display Images in list view after taking image url from json.any one can help me on this?
View ArticleListView.ScrollTo not working on Android
Hi I use ListView.ScrollTo to scroll to the very bottom of a ListView. On iOS its working fine but I get a Java crash on Android. _messageListView.ScrollTo (_messageList[_messageList.Count -1],...
View ArticleNot able to upload the apk to the test cloud
Hi , I have following programe. using NUnit.Framework; using System; using Xamarin.UITest; using Xamarin.UITest.Android; using Xamarin.UITest.Queries; namespace XamarinStore.Tests { [TestFixture]...
View ArticleIs it possible to detect the lock screen double tap event?
Hi, I am new to Xamarin and I would like to know if it is possible to detect the lock screen double tap event either in Visual studio 2012 or Xamarin studio. I have all the latest version of the...
View ArticleSilent Local Notification IOS
Can we have a silent local notification in IOS app. Which does some data processing in the background with out the user interacting with it. What I want to do is create a silent local notification...
View ArticleAccessing public fields that were declared in a library
There is a nice section in the docs "Binding Fields" that talks about how to bind global variables from a library. But it comes with some restrictions on the types it supports: 32 and 64 bit ints and...
View ArticleHow to analyzing crash report in iOS
Hi, I would like to ask how to analyze crash report send by Apple in xCode if we using xamarin to develop the app? Thanks!
View ArticleNSCollectionView cannot multi select by mouse on El Captain ?
Hi On 10.8 - 10.10 you could multi select item by drawing a rect with your mouse on NSCollectionView but on El Captain It does not work. I have modified the sample xamarin sample ( Just change in the...
View ArticleApp instantly crashes when I navigate to a google maps screen
App crashes with this error: Objective-C exception thrown. Name: GMSServicesException Reason: GoogleMaps.bundle requires Google Maps SDK for iOS to be part of your target under 'Copy Bundle Resources'...
View Articlegdiplus.dll package error
I'm getting an error trying to run a packaged app on a system without mono installed. It's giving me an error complaining about not being able to find gdiplus.dll. I've turned off linking and am still...
View ArticleFragment
Hi! I have problem with update ListView. I write simple app which consist of two view: MyListView download record from database, and FormView add new record to database. I put views in ViewPager, and I...
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