BindablePicker with on the fly updating
I have a great BindablePicker found on these forums below. However, it only works if the bound collection already contains its items at the time of binding. How can I modify this code so that adding...
View ArticleBack Arrow Color on Lollipop with FormsAppCompatActivity
What is the proper way to change the back arrow color when using FormsAppCompatActivity? I created a new project and followed the instructions here to use Material Design:...
View ArticleImage in a scrollview, 100% width and dynamic height
I am having trouble getting images (Web URI) to scale properly inside a scrollview. What I want is the image to retain its aspect ratio and take 100% width of its parent. Height would scale...
View ArticleShared aplication problem
Hello. I have trial version of xamarin and I have stuck on tests phase. I spent a few hours on that. I've created "Shared" solution from scratch. When solution is generated I can compile and run on...
View ArticleiTunes Connect - Invalid Binary
So when we submit our Xamarin.Forms app to the iTunes Connect store for testing, we get the following error: Non-public API usage: The app references non-public selectors in OurAppiOS: _addRecorder:,...
View ArticleNullReferenceException when trying to theme Android application
When I try to apply the following theme to my app, I get a null ref exception when trying to show the MainPage in the XamarinForms app. <style name="Theme.Splash" parent="AppTheme"> <item...
View ArticleCross Platform Crop Image View
Hey, Anyone have ever implemented some custom crop image UI that can be used in forms ios/android/win phone? What I`m trying to achieve is something like instagram that crop a image to a square, so I...
View ArticleQuestion about Windows toolbar №1
Hello, I have two kind of WinPhone applications: The first - WinPhone 8.1 WinRT, The second - WinPhone 8.0 Silverlight. Both of them are using Xamarin.Forms ver 1.5.0.6447. A toolbar with a title...
View Articlehow to create a popup window in xamarin. forms ?
I am trying to create popup window in xamarin forms application but it was appear like a another page . but I want its appear like a popup please help me. Thanks in advance
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Bug in 1.5.1.6471: Frame always has shadow. Android 4.1.1 API 16
Xamarin.Forms: 1.5.1.6471 OS: Android 4.1.1, API 16 As you can see in the picture: The top three icons have an outline/shadow around them, even though it is disabled: new Frame {Padding = new...
View ArticleXamarin 1.3.1 ArgumentOutOfRange exception in iOS ListView bound to...
We recently upgraded our project to Xamarin 1.3.1. Since upgrading, many of our iOS ListViews have been giving us trouble. It seems like grouped lists (bound to ObservableCollection) work just fine,...
View ArticleCarouselPage set CurrentPage with no Animation ?
Is the a way to set the CarouselPage CurrentPage without the animation effect?
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 ArticleTabbedPage Tabs Height
Hi everyone, I'm developing an Android application for mobile phone. I'm using Xamarin Forms and Android 5 Lollipops (AppCompat v7). I've got a XF TabbedPage, and i'm wondering if it's possible to...
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...
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 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 ArticleSystem.ArgumentException: 'jobject' must not be IntPtr.Zero
My app is crashing with the error message System.ArgumentException: 'jobject' must not be IntPtr.Zero . i checked the log files in the attachment .This is happening while i remove an item from my...
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