Month: August 2016

In Xamairin the Editor component doesn’t have a border on iOS. If you want to add one in the iOS project just added the following code. using UIKit; using WordBankEasy.iOS.Renderers; using Xamarin.Forms; using Xamarin.Forms.Platform.iOS; [assembly: ExportRenderer(typeof(Editor), typeof(CustomEditorRenderer))] namespace PSC.iOS.Renderers { public class CustomEditorRenderer : EditorRenderer { protected override void OnElementChanged( ElementChangedEventArgs<Editor> e) { base.OnElementChanged(e); if(Control != null) { Control.Layer.BorderColor = UIColor.FromRGB(204, 204, 204).CGColor; Control.Layer.BorderWidth = 0.5f; Control.Layer.CornerRadius = 3f; } } } } Happy coding!

By default all your data from your previous runs is deleted when you’re deploying an Xamarin.Android app. In many cases you don’t want the data to be deleted. Visual Studio To preserve data go to Tools -> Options -> Xamarin -> Android Settings and check “Preserve application data/cache on device between deploys”. Xamarin Studio To preserve data go to Tools -> Options -> Android and check “Preserve data/cache between application deploys”. Happy coding!

I was building a Xamarin solution with my components like that: All my components (PSC.Xamarin.Controls.*) are working fine in other solutions.Always fine for Windows or UWP solutions. A problem was born when I started to deployed my solutions on iOS. When on the app I opened a page with my controls I always received an error like: System.IO.FileNotFoundException: Could not load file or assembly ‘PSC.Xamarin.Controls.BindablePicker’ or one of its dependencies. The system cannot find the file specified. I can check my references and deployment settings in all ways, it turns…

In Xamarin.Forms every View has the two properties HorizontalOptions and VerticalOptions. Both are of type LayoutOptions and can have one of the following values: LayoutOptions.Start LayoutOptions.Center LayoutOptions.End LayoutOptions.Fill LayoutOptions.StartAndExpand LayoutOptions.CenterAndExpand LayoutOptions.EndAndExpand LayoutOptions.FillAndExpand Apparently it controls the view’s alignment on the parent view. But how exactly is the behavior of each individual option? And what is the difference between Fill and the suffix Expand? Theory The structure LayoutOptions controls two distinct behaviors: Alignment: How is the view aligned within the parent view? Start: For vertical alignment the view is moved to…

I using a Xamarin Forms ListView and I want to enable or disable the Context Actions based on a certain binding or in the code behind. The way I found is to use BindingContextChanged in a ViewCell. I show you an example <?xml version=”1.0″ encoding=”utf-8″ ?> <ContentPage xmlns=”https://xamarin.com/schemas/2014/forms” xmlns:x=”https://schemas.microsoft.com/winfx/2009/xaml”> <ContentPage.Content> <StackLayout> <ListView x:Name=”listDictionaries” ItemsSource=”{Binding DictionariesList}” IsVisible=”{Binding ShowList}” HorizontalOptions=”FillAndExpand” VerticalOptions=”FillAndExpand” HasUnevenRows=”true” IsPullToRefreshEnabled=”true” RefreshCommand=”{Binding Refresh}” SeparatorVisibility=”Default” ItemTapped=”OnItemTapped” IsRefreshing=”{Binding IsBusy, Mode=OneWay}”> <ListView.ItemTemplate> <DataTemplate> <ViewCell BindingContextChanged=”OnBindingContextChanged”> <ViewCell.View> <StackLayout> <Grid Padding=”10″ ColumnSpacing=”10″> <Grid.RowDefinitions> <RowDefinition Height=”*” /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width=”Auto” /> <ColumnDefinition Width=”*” /> </Grid.ColumnDefinitions>…

I’ve just created a simple MasterDetailPage and in the code I inserted an icon for the left page with: public MainPage() { InitializeComponent(); BackgroundColor = Color.FromHex("#007acc"); Icon = "settings.png"; } I tried to deploy my app on an Android emulator but I can’t deploy it because Android.Content.Res.Resources+NotFoundException: Resource ID #0x0. I checked everthing and evething seemed fine. The problem is the icon! You have to remove Icon from the code and in the XAML page type the following code: <ContentPage.Icon> <OnPlatform x:TypeArguments=”FileImageSource”> <OnPlatform.iOS>settings.png</OnPlatform.iOS> </OnPlatform> </ContentPage.Icon> Happy coding!