Exception ImageSource.FromFile to navigate between pages
public partial class Page1 : ContentPage { bool isCalled = false; public Page1() { InitializeComponent(); } void OnButtonClicked(object sender, EventArgs e) { Navigation.PushAsync(new Page2()); }...
View ArticleUriImageSource sometimes doesn't load image
Hi, I have page with 6 Image and every image is located on web. I get the list of URLs from API and I setting them to Images with UriImageSource, but sometimes random images doesnt load - no error, no...
View ArticleIs it possible to add stack Layuout in toolbar to add controls in it?
Is it possible to add stack Layuout in toolbar to add controls in it? If yes please provide any sample with UI in XAML
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...
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 ArticleThe UI layer and Xamarin Forms - can XAML be in platform-specific projects?
In a cross platform PCL application using Xamarin.Forms; it appears that the XAML and UI is exclusively handled by the common project. In other words you don't have SomePage.XAML and its...
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 ArticleXamarin.FormsMaps
Does Xamarin FormsMaps cost anything or can it just be used in a project? I am targeting Android and iOS. Thanks
View ArticleIf want a snappy UI don't use Labels. Or anything else...
I'm sorry for the harsh title. But this is exactly the sentence we throw around the office for quite some time now when ever somebody complains about the slowness of Apps based on Xamarin.Forms....
View ArticleUnderstanding Grid Layout
I am a bit confused about the Add method of Grid with four args: grid.Children.Add(new Label { Text = "Span two rows (or more if you want)", TextColor = Color.Yellow, BackgroundColor = Color.Navy,...
View ArticleXamarin.Forms 1.5.1 AppCompat Toolbar on API 16 back button color changes
Hello, I currently tested the AppCompat using a Toolbar with the DrawerLayout. We use a black back button on a white toolbar. This works fine on > Lollipop. But on API16 I noticed a strange...
View ArticleCant change android back button in Xamarin.Forms
Hi all, I tried 10120312 ways to change back button in toolbar at Xamarin.Forms, but still it same color. It change hamburger menu color, but doesn't change <- !!! Create custom toolbar theme. - Not...
View ArticleXamarin.Forms AppCompatActivity - deeper navigation "back" arrow is black
As the title says. The whole toolbar is using the proper coloring, including the hamburger icon, but as soon as one goes even one page deep, the back arrow turns black. The arrow has no such problems...
View ArticleHow do use setters in App.xaml to bind values to a custom class?
I have a custom class with custom properties that need to be retrieved. This works in the app.xaml: <cols:List x:Key="SchemaModifications" x:TypeArguments="SAL:SchemaModification">...
View ArticleWhat is the plan for TargetPlatform.Desktop ?
As well as Android and iOS, I am building my app to run on Windows phones, tablets and desktops. I run it on my Windows development PC and (working around various XF bugs) it works a treat. However,...
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 ArticleHow to get the progress of WebView while loading the data, Xamarin.Forms
I am developing an App using Xamarin.Forms for listing the news from different sources. I use a webView to open the link corresponding to the news. But I want to show the progress while loading the...
View ArticleListview scroll performance
Hello, I created an app using xamarin.forms. Unfortunately I have problems with performance scrolling (less 200 items) in Android devices. The scroll has a lag and in some occasions it is almost...
View ArticleUniversal Windows ListView Grouping Bug?
I'm adding a Universal Windows target to my PCL project and I'm getting Resource Token Not Found errors when I have grouping enabled on a Forms ListView. Disabling grouping for my UWP target makes my...
View ArticleTouchesCancelled being fired instead of TouchesEnded
Hi all, I'm learning Xamarin and I have an app that started as an iOS app but I've started to port into a Xamarin Forms app. I've created a custom page renderer for one of the screens and ported the...
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