Exception thrown when instantiating a Map in Xamarin.Forms 2.0 on Android
After upgrading my Xamarin.Forms 1.5.2 project to Xamarin.Forms 2.0.0.6484, I keep getting the following exception whenever I try to access a page with a Xamarin.Forms Map instance. See below. I have...
View ArticleMultiplatform Forms project using SignaturePad
I'm trying to figure out a good way (if there is one) to mix Xamarin.Forms with SignaturePad. Ideally I'll be able to have a signature pad pop up on both Android and iOS - at first I thought I could...
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Error creating new Forms project in VS 2013 and Xamarin Studio
Hopefully someone can tell me what I am missing here. I get the following error when I try to create a new Xamarin Forms (Portable) project: "Specified argument was out of the range of valid values....
View ArticleLocalization multi reference
Hi all, I begin my post saying my excuse for my probably bad english. So i searched but i never find how i can do a multi reference of ressource file in xaml. for exemple i can do that on C#...
View ArticleFuture of DevExpress Grid May Depend on You
Is anyone else using the DevExpress Grid out there? I am hoping they will support the Universal Windows Platform (UWP) for Xamarin.Forms but they say there hasn't been a huge adoption rate for their...
View ArticleHow to remove an event handler in custom renderer?
Hi all, In my custom renderer I attach a PropertyChanged Handler to e.NewElement. How can I remove this handler, when the Element/View is destroyed? Unfortunately, OnElementChanged is not called, when...
View ArticleXF Android : I/Choreographer( 2699): Skipped 63 frames!
Hello, I have a ListView, and have Image in each cell . <Image Source="{Binding Data.CompanyLogoUri}" WidthRequest="60" HeightRequest="60" Aspect="AspectFit" /> When my Networking is poor, it...
View ArticleWebView Events - Open Some Links in Device Browser
I need events for the Xamarin.Forms.WebView so I can intercept URLs that are "off site" and open them in the Device's browser (instead of the WebView). Primarily, I need an ShouldLoadRequest(url) (true...
View ArticleStart PullToRefresh Programatically with refreshing animation
Hi, I'm trying to add the pull-to-refresh functionality to a ListView. It's working great (I only tested it on Android though), but I want the refresh command and the refresh animation to start when...
View ArticleListView inside StackLayout: a height problem
In a ContentPage I have a ListView inside a StackLayout inside a ScrollView. The ListView is populated (ItemSource is set) in the ContentPage when OnAppearing gets called and I can see that the list is...
View ArticleImage Property on the Button
I am using the Button on the release version of forms, trying to understand what needs to be assigned to the Image property, so an image is added to my text in the button. Are there any good samples?...
View ArticleXamarin Forms QR code scanner blank screen
I have a Xamarin Forms 2.0 application that uses ZXing.Net.Mobile and ZXing.Net.Mobile.Forms version 2.0.3.1. I'm trying to build a simple QR code scanner, but whenever I launch the ZXingScannerPage on...
View ArticleHow to call EnableSlowWholeDocumentDraw() method before webview...
I am developing app in xamarin.forms in that converting webview to pdf successfully implemented but while reading whole web content on lollipop only able to write visible part on pdf . Also tried with...
View ArticleIssues with ListView in UWP Xamarin.Forms
Hi, These are issues I have noticed while implementing UWP project in Xamarin.Forms, 1 TextCell DetailProperty binding is not working (Can't View the detail text in Listview) 2 Grouped Listview Seems...
View ArticleXamarin.Forms Nuget package install fails with NullReferenceException
Hi All, I am trying to install Xamarin.Forms after creating a new Xamarin.Forms Portable app in Visual Studio. Package Manager fails w/ NullReferenceException. Please see below. Any help would be much...
View ArticleWindowsPhone Landscape NavigationPage shows black area
Hi I have a strange behaviour in my Xamarin.Forms app on the WinPhone client. My MainPage is a NavigationPage. And when I navigate to the second page and turn the phone to landscape (also happens on...
View ArticleAndroid navbar color reverts when stacked 3 deep on Galaxy Note
Our app uses the NavigationPage constructor initialization to set the navbar color like this: new NavigationPage(new ContentPage()) { BarBackgroundColor = Color.FromHex("#ffffff") }; This works...
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iOS - Local webview shows black background when page is dragged
I'm currently working with some WebViews right now, one of which includes loading a local HTML file into my app. On iOS, if I try dragging the page, a black background shows. What can I do to disable...
View ArticleSuper Newbie Image question
The idea is to have 3 Images in a Row on my app's Login screen. I realize this is a stupid question, but I've been wrestling with my ignorance for hours now lol. This is the latest iteration: Content =...
View ArticleFontSize NamedSize
Hi Folks, Is there some precise meaning to NamedSize? I'd like to incorporate that setting into my own custom controls, but if there are guidelines of how big each size is, I'd love to know where to...
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