Augmented Reality
I´m doing an aplication based in augmented reality. I need to put A view on my aplication with the activation of the Camera, like the barcode aplication, but just the camera as the view. With that i...
View ArticlePicker not updating selected item from MVVM
I have a form like below with picker control. Its source is in MVVM's observableCollection. Depending if it's existent Process or new one, _this object is created from scratch or set to object passed...
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XAML Compilation Error on "HeightRequest"
I have been using Xamarin forms v2.5.1.527436 Whenever I try to build my project in VS2017 I'm getting following error in 5 out of 10 times Error : "No property, bindable property, or event found for...
View ArticleHow to put icons in TabbedPages
My app crashes when I open the tabbedpage ? Here is my code
View ArticleHow to add icons in TabbedPage with XAML code ?
I writes local xmlns namespace and then locals page icon=icon.png but my code crashes ? Why ?
View ArticleXamarian Forms - Bluethooth API Library
Hello all, I am opening this discussion as I am in search of Bluethooth library that does the following 1. search for devices and pair 2. if already paired retrive the list for the phone 3. how to...
View ArticleHow to call 'Navigated' event using a custom UIWebView?
Looks like 'Navigated' only works when using the WebView thats in PCL. I am now using a custom renderer uiwebview, and now the 'Navigated' doesnt get called anymore. Is there a way to still call...
View ArticleHow to convert WebView to Image?
How to convert WebView to Image and then save the image as a file(png,jpeg).
View ArticleXamarin UITest or Appium
I'm considering between XamarinUITest and Appium I tried XamarinUITest, and I saw that I can use XamarinUITest for Xamarin forms, which runs on both iOS and Android platform. I've heard about Appium, I...
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Has anyone confirmed ControlTemplate binding on Xamarin.Forms 3.x ?
I've been fighting this for a couple days now. At first I thought I just wasn't getting the syntax right. But I'm starting to doubt if this works as advertized in XamForm 3. Pretty basic...
View ArticleNullReferenceException on MainActivity > OnCreate() > LoadApplication(new...
Hi, I'm getting a NullReferenceException at this line: LoadApplication(new App()); in my main activity. What I was working on was adding a Compat Theme in order to get this badge plugin working,...
View Article[SkiaSharp] Attempting to draw a bitmap from an existing file
Hello, I'm currently attempting to load an image on a canvas but so far I have only been able to load it once if I create a SKCanvasView immediately after InitializeComponents() on a page. Creating a...
View ArticleHow to make Color.Accent match your Android app's theme
As you may be aware, Xamarin.Forms' Color.Accent is a static, internally set property for use throughout your Xamarin.Forms app. Unfortunately, Color.Accent does not care about the accent color you set...
View ArticleHow to call back a function within a custom ViewRenderer?
I created a custom renderer (called HybridWebViewRenderer) subclassed from the ViewRenderer class. From the PCL, I have a ContentPage with a button and a HybridWebView. From the PCL, I want to be able...
View ArticleCommand Binding From Xaml to ViewModel does not work (not debugable)
Hi. I have a XAML form with button. <StackLayout.BindingContext> <viewModels:CartVM/> </StackLayout.BindingContext> <!-- other code --> <ListViewItemsSource="{Binding...
View ArticleWhy static long field initialized improperly in XForms.UWP?
Initializing a static long field with 0xFFFFFFFF value properly assigned in debug mode, but in release mode value is converted into -1. static readonly long Test= 0xFFFFFFFFL; Whereas defining the long...
View ArticleHow can we capture the IP address of the router the smartphone is connected...
I want to get the Ip address of the device from which my smartphone is connected. Can any one help me that how I do this ? Thanks a lot in advance
View ArticleRemove SearchBar border
Hi, How can I remove the gray border around the Searchbar in iOS? I tried a custom renderer using below code but it is still not removed. protected override void...
View ArticleImageSource: Model or ViewModel?
Hi experts, I'm trying to figure out where to put an ImageSource in my object hierarchy. Current inclination is to put it only in the ViewModel layer, and store a URL as string in the corresponding...
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