Questions tagged xamarin.forms

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Xamarin Forms – Equivalent of CollectionViewSource

In WPF and other XAML based technologies there was a class called CollectionViewSource. It was useful because rather than filtering and sorting inline etc. one would put a layer over the top of the actual collection, and only expose the sorted/filtered view to the UI. This meant that the model would stay clean while the […]

By Christian Findlay
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Xamarin Forms: Hide a Stack While Scrolling a list

I have a Xamarin forms Page which is divided into 2 sections, the top 40% contains the Search controls inside a stack layout, the other 60% contains a list view. While scrolling the list view up I want to hide the Stack Layout at the top covering 40% of the screen. I achieved to implement […]

By Saurabh
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Rg.Plugins.Popup is not closing when background is clicked in Xamarin.Forms

I have used rg.plugins.popup in my application. I have updated the xamarin forms (version=”2.5.0.121934″). Now the outer background is clicked it is not closed. I used to close the popup many ways, but not closed, I tried the below code: this.CloseWhenBackgroundIsClicked = false; protected override bool OnBackgroundClicked() { Navigation.PopPopupAsync(); return false; } OnBackgroundClicked is not […]

By Karthick
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how to create Half Screen Camera View in Xamarin forms

I want to display live camera view in Half of the Screen and the remaining half screen needs to insert some control in Xamarin Forms. for camera purpose, I am using “Plugin.Media;” but plugin opens new camera window. the same page should display on iOS and Android. please suggest me how can I develop/design this […]

By sumeet
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Xamarin.Form load dependencies dlls to apk and ipa

I am implementing a Xamarin Forms solution which has the Shared logic as a .NET Standard project => A. I have some separate logic in another .NET Standard => B which is referenced by project A and project B has couple of C++ dlls as dependencies. The solution builds fine and when I run inside […]

By Bassam Gamal
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Change Xamarin form ios launch screen image

I am working on Xamarin form cross platform app where I need to change default launch screen image. I changed launch screen images from Asset catalog then lunch screen but when app is launched image is showing small and centered with background of default xamarin background color. How do i change that too ? Source: […]

By Mahajan344
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Is it possible to hook into Hardware keyboard events at an Application level?

I am developing a Xamarin.Forms application for iOS, Android and UWP. I would like to hook into hardware keyboard events at an application level (not an individual page level (because its a Xamarin.Forms application)) so that when a user presses a key on the keyboard I can invoke an action in my application. On Android […]

By user1
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Xamarin Forms – Change color of the Map Pin

I’m currently using Maps in Xamarin Forms. It works fine for this example. https://developer.xamarin.com/guides/xamarin-forms/user-interface/map/ Now i need to change just the colour of the Pin, the following example is not really what i’m looking for as its a bit of an overkill for me. https://developer.xamarin.com/guides/xamarin-forms/application-fundamentals/custom-renderer/map/customized-pin/ Is there an easier way to just change the color? […]

By the tr00per
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error MT0117: Can’t launch a 32-bit app on a simulator that only supports 64-bit apps (iPhone 6s)

Using Xamarin.Forms, Visual Studio 2017 on a PC, and MacBook Air for building the mobile application to iOS. Yesterday, I updated the Visual Studio version to 15.3.5. I also updated the MacBook Air (via VS for Mac) to get the latest version of iOS (11.0). I created a new app (Xamarin.Forms) just to test the […]

By Dimitris
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Xamarin.Forms – Label FontSize OnPlatform – XAML error

I have this code: <Label x:Name=”questionGroupHintInfoLabel” FontAttributes=”Bold” Text=”Folgende Hinweismeldung wurde für die aktuelle Fragengruppe hinterlegt:”> <Label.FontSize> <OnPlatform x:TypeArguments=”NamedSize” iOS=”Small” Android=”Small” /> </Label.FontSize> </Label> …and get this error: No property, bindable property, or event found for FontSize What i’m doing wrong? Thanks. Source: Xamarin.ios Questions

By OPunktSchmidt
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