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XAMARIN QUESTIONS

No embeddedresource found for xxx.App on android
No embeddedresource found for xxx.App on android
This might help you Your code is trying to access an asset which is missing from the project Folder. Kindly check the code which resource is missing usually some .db3 file or some font or some image.For Android:- The resource is in Assets Folder and
TAG : xamarin
Date : January 12 2021, 01:40 AM , By : user3100111
Not Returning from B2C Login
Not Returning from B2C Login
I think the issue was by ths following , I missed a step in the guide: Android Configuration. I needed to fill out the URI scheme: in AndroidManifest.xml
TAG : xamarin
Date : January 11 2021, 03:34 PM , By : user3099696
xamarin.forms listview populate by BindingContext and viewmodel
xamarin.forms listview populate by BindingContext and viewmodel
help you fix your problem you are setting the BindingContext of the Page to listAirport. So the ItemsSource will be the same as the page binding
TAG : xamarin
Date : January 11 2021, 11:39 AM , By : Manoj Thote
How to bind CollectionView.EmptyView to the page's ViewModel?
How to bind CollectionView.EmptyView to the page's ViewModel?
seems to work fine I'm building an app with a CollectionView, where I'd like the user to add an item to an ObservableCollection when the CollectionView is empty. Problem is: I cannot find out how to bind to the page's ViewModel. This is a Xamarin.For
TAG : xamarin
Date : January 09 2021, 02:14 PM , By : user3097854
Visual Studio for Mac creates 2 .apk archives, one with -signed.apk
Visual Studio for Mac creates 2 .apk archives, one with -signed.apk
will be helpful for those in need The major differences are the debug flag and the signing keys, I guess. You can read more about signing here and manually signing here.
TAG : xamarin
Date : January 02 2021, 06:48 AM , By : Anil Sangani
How to handle NULL reference exception in c#?
How to handle NULL reference exception in c#?
I wish this helpful for you Handle a Null Reference Exception.A NullReferenceException happens when you try to access a reference variable that isn’t referencing any object. If a reference variable isn’t referencing an object, then it’ll be treated a
TAG : xamarin
Date : January 02 2021, 06:48 AM , By : Patrick Barnard
Xamarin Forms android app taking 12 seconds to startup
Xamarin Forms android app taking 12 seconds to startup
To fix the issue you can do The painful truth is that you will never be able to optimize it to the level that it starts in 2-3 seconds with Xamarin.Forms, at least within the current implementation. You can find some of the tips how to speed it up: I
TAG : xamarin
Date : January 02 2021, 06:48 AM , By : MarkTheMule
Can you use Xamarin.Forms 4.0 with Shell and Prism framework
Can you use Xamarin.Forms 4.0 with Shell and Prism framework
fixed the issue. Will look into that further The short answer is sort of and it depends on what from Prism you want to use. You can of course use the ViewModelLocator to inject your ViewModels, but you really don't have a way passing parameters to in
TAG : xamarin
Date : January 02 2021, 06:48 AM , By : Xinyi Jiang
Properly implement In-App Updates in App Center?
Properly implement In-App Updates in App Center?
Hope this helps Looking at this App Center documentation here for Xamarin Forms -You can customize the default update dialog's appearance by implementing the ReleaseAvailable callback. You need to register the callback before calling AppCenter.Start
TAG : xamarin
Date : January 02 2021, 06:48 AM , By : Anna Maus
How to properly set height on GRID?
How to properly set height on GRID?
wish help you to fix your issue Remove the StackLayout outside of your content Grid. The Grid won't take the whole space of the StackLayout so that it looks the percentage is wrong:
TAG : xamarin
Date : January 02 2021, 06:48 AM , By : hellojuny
System.InvalidCastException: Specified cast is not valid in xamarin forms?
System.InvalidCastException: Specified cast is not valid in xamarin forms?
it fixes the issue I am working on Xamarin.Forms I got error , I resolved the error by changing the code into following
TAG : xamarin
Date : January 02 2021, 06:48 AM , By : henri sula
Xamarin conditionally show in derived ControlTemplate ContentPresenter
Xamarin conditionally show in derived ControlTemplate ContentPresenter
this will help first in your MyCommonControl you could define BindableProperty OkToShowThis:
TAG : xamarin
Date : January 02 2021, 06:48 AM , By : user3095079
My BindingContext event is not triggering when get new value
My BindingContext event is not triggering when get new value
To fix the issue you can do I want to get notified when some inputs of the form were changed, so I binded my model to the form and wrote some handlers for the BindingContextChanged event and each inputs change.
TAG : xamarin
Date : January 02 2021, 06:48 AM , By : user3095066
Xamarin.Forms list through list of objects control
Xamarin.Forms list through list of objects control
seems to work fine There is no such a control in Xmarin.forms .But you can implement it by yourself.
TAG : xamarin
Date : January 02 2021, 05:23 AM , By : user3093919
Disable Gestures On Specific Page Xamarin
Disable Gestures On Specific Page Xamarin
I wish this help you If you want to disable gesture on specific page for MasterDetailed Page, I Suggest you can try to use MassagingCenter to do this.1.Usinf MassagingCenter from masterdetailed page constructor:
TAG : xamarin
Date : January 01 2021, 05:04 PM , By : user3092650
Problem with Picker items scrolling in windows ToughPad
Problem with Picker items scrolling in windows ToughPad
I wish this helpful for you I am taking one picker like , Problem with Picker items scrolling in windows ToughPad
TAG : xamarin
Date : December 31 2020, 08:18 AM , By : user3090417
Margin provided for labels in Xaml is not picking up in Xamarin Forms
Margin provided for labels in Xaml is not picking up in Xamarin Forms
seems to work fine Margins and Padding in Forms are of type Thickness.
TAG : xamarin
Date : December 31 2020, 03:02 AM , By : user3089404
Xamarin Forms Timepicker Format Input String not in the correct format
Xamarin Forms Timepicker Format Input String not in the correct format
may help you . I have a hopefully simple question for you. I created a Timepicker for my Xamarinapp. This Timepicker should get the 24hours format. So in den .xaml File I did that. , The correct format should be:
TAG : xamarin
Date : December 31 2020, 02:07 AM , By : user3088873
How do I control the content page focus?
How do I control the content page focus?
Hope this helps you could use MessagingCenter to refresh your list after you add new item or edit item in a new page like:in ItemsPage :
TAG : xamarin
Date : December 30 2020, 04:08 PM , By : user3088405
Xamarin stack layout overlapping sections
Xamarin stack layout overlapping sections
wish of those help I am relatively new in Xamarin, I'm trying to create a form. , If you want to do this layout in Grid, please try the code below.
TAG : xamarin
Date : December 28 2020, 02:12 PM , By : user3088111
Xamarin listview button click get command argument value
Xamarin listview button click get command argument value
Does that help I have this listview , You can only get the CommandParameter in Command .In xaml:
TAG : xamarin
Date : December 27 2020, 04:45 PM , By : user3085902
Is it good practice for MVVM data models to contain methods?
Is it good practice for MVVM data models to contain methods?
Any of those help It is perfectly ok for model classes to expose methods that are specific to the domain model they are representing. Consider the following case:
TAG : xamarin
Date : December 25 2020, 08:30 PM , By : binaryCoder
Is there a way to center the page title on Android when using Xamarin Forms Shell?
Is there a way to center the page title on Android when using Xamarin Forms Shell?
This might help you You will have to implement ShellRenderer in this case as you have Xamarin.Forms Shell Project.
TAG : xamarin
Date : December 25 2020, 08:30 PM , By : user3078759
How can I set the padding on a Xamarin Forms Android button?
How can I set the padding on a Xamarin Forms Android button?
wish helps you You can manipulate the space available to the button. You can use a Grid and have as many columns needed and then in the code behind file access the GridColumns by setting x:name and use the below code in the constructor of the Page. T
TAG : xamarin
Date : December 25 2020, 08:30 PM , By : user3078753
How to hide Shell Tabbed from another Page in Xamarin Forms?
How to hide Shell Tabbed from another Page in Xamarin Forms?
I think the issue was by ths following , I am using Shell Tabbed Page, and it's working fine. But when I navigate to a new Page using , In your page just add:
TAG : xamarin
Date : December 25 2020, 07:30 PM , By : user3078221
Images saved in database are not displaying in the Home.xaml page in Xamarin Forms app
Images saved in database are not displaying in the Home.xaml page in Xamarin Forms app
may help you . If you load an Image from a byte[] array in the Xamarin.Forms, you can try the following code:c code:
TAG : xamarin
Date : December 25 2020, 04:30 PM , By : marvin
Is it possible to use MessagingCenter or Intents with Xamarin.UI tests?
Is it possible to use MessagingCenter or Intents with Xamarin.UI tests?
I hope this helps . So, I have managed to achieve was I was looking for with a neat thing that I didn't know of until now -> Backdoor methodsI have added a backdoor method to my MainActivity.cs, which receives the hardware status from the UITests, an
TAG : xamarin
Date : December 25 2020, 03:30 PM , By : Rupesh
How can we set a default color `#c4bfc7` for row records displaying in the Xamarin forms page
How can we set a default color `#c4bfc7` for row records displaying in the Xamarin forms page
will be helpful for those in need UPDATE Your grid inside the ViewCell would look something like below:
TAG : xamarin
Date : December 25 2020, 12:09 PM , By : US3R
How can we received a image file from imageToUpload.Source and passed into another method
How can we received a image file from imageToUpload.Source and passed into another method
like below fixes the issue If you want to save the imageSource to database , we can convert it to a byte[] array .
TAG : xamarin
Date : December 25 2020, 12:09 PM , By : user3074500
Can I disable a Button in my Xamarin ContentView custom control using a BindableProperty?
Can I disable a Button in my Xamarin ContentView custom control using a BindableProperty?
Hope this helps I found the answer in the comment, "The page using the ContentView sets its BindingContext which will then be used for all child elements, including the custom ContentView. If you set the context in the content view again, you will ov
TAG : xamarin
Date : December 25 2020, 09:33 AM , By : user3073153
Xamarin.Essentials.Map vs Xamarin.Forms.Maps.Map
Xamarin.Essentials.Map vs Xamarin.Forms.Maps.Map
wish of those help Xamarin Essentials Map
TAG : xamarin
Date : December 25 2020, 09:19 AM , By : user3072420
System throws Unable to get file exception even file path and permissions are provided
System throws Unable to get file exception even file path and permissions are provided
hop of those help? On click on the 'UploadButton' I am getting an exception Unable to get file location. This most likely means that the file provider information is not set in your Android Manifest file. Further investigation found out that I am rec
TAG : xamarin
Date : December 25 2020, 06:31 AM , By : user3070337
Xamarin Forms Maps Google only?
Xamarin Forms Maps Google only?
I hope this helps . Xamarin.Essentials.Map is not a "control", it is using a pre-installed map app on the device. i.e. On Android it is using the geo: Uri scheme and and thus may prompt the user to pick which map application to use as more than one m
TAG : xamarin
Date : December 25 2020, 02:01 AM , By : user3069582
How to trigger code once after update in Xamarin
How to trigger code once after update in Xamarin
wish helps you You can leverage Xamarin.Essentials' Version Tracking API:Here are some of information you will be provided with:
TAG : xamarin
Date : December 24 2020, 03:30 PM , By : user3067892
Xamarin.forms make phone call without going to dialer in Android
Xamarin.forms make phone call without going to dialer in Android
I wish this help you To place a phone call directly, you can use Xam.Plugins.Messaging library:After installing the nuget, add this line in Android project MainActivity's OnCreate method:
TAG : xamarin
Date : December 23 2020, 07:30 AM , By : user3062318
How to make a button disabled or hidden in settings page while navigating from login page
How to make a button disabled or hidden in settings page while navigating from login page
Hope this helps it would be a lot simpler to just pass a bool in the constructor of Settings
TAG : xamarin
Date : December 23 2020, 07:01 AM , By : user3061799
SyncFusion SfChart won't render in iOS simulator (white screen) but shows in Visual Studio Preview?
SyncFusion SfChart won't render in iOS simulator (white screen) but shows in Visual Studio Preview?
wish help you to fix your issue By default, Xamarin does not load the renderer assemblies in iOS and macOS projects. So, in order to solve this issue, manually load it by calling a static Init method of SfChartRenderer class in the respective project
TAG : xamarin
Date : December 23 2020, 04:01 AM , By : user3061266
How to Resume video after SeekTo() method in VideoView?
How to Resume video after SeekTo() method in VideoView?
wish helps you I used XamarinMediaManager and all works.
TAG : xamarin
Date : December 22 2020, 07:01 PM , By : LarrySze
I have this "Error Can not resolve reference: 'Xamarin.Firebase.Messaging', referenced by `Microsoft.AppCenter.Push
I have this "Error Can not resolve reference: 'Xamarin.Firebase.Messaging', referenced by `Microsoft.AppCenter.Push
fixed the issue. Will look into that further If you read twice it says if you want to use Microsoft.AppCenter.Push.Android.Bindings you have to install Xamarin.Firebase.Messaging.Your solution is to install Xamarin.Firebase.Messaging NuGet package.
TAG : xamarin
Date : December 22 2020, 06:30 PM , By : shiningshadow
Is there a way to work with nested CollectionViews in Xamarin Forms with MvvmCross?
Is there a way to work with nested CollectionViews in Xamarin Forms with MvvmCross?
I wish did fix the issue. You put 2 horizontal CollectionViews in the ListView Header in a Grid or StackLayout :)To be more clear:
TAG : xamarin
Date : December 10 2020, 09:42 AM , By : user3051608
How can I call an async method when a button is clicked and avoid warning messages for message not returning void?
How can I call an async method when a button is clicked and avoid warning messages for message not returning void?
I wish this helpful for you It yells at you cause basic XF Commands don't have async capabilities. If you want warnings to go away, you can write your own AsyncCommand implementing ICommand, or just use the AsyncCommand from stephen cleary: https://g
TAG : xamarin
Date : December 05 2020, 12:23 PM , By : Suresh
WebView load HTML content with root path
WebView load HTML content with root path
this will help I solved the problem by overriding ShouldInterceptRequest method on WebViewClient and instead of loading the content from a string i loaded it via URL like this:
TAG : xamarin
Date : December 05 2020, 12:16 PM , By : user3048567
Push notification from local API in xamarin forms
Push notification from local API in xamarin forms
wish helps you It is feasible. As Sushi said, you can use WebSockets or other Sockets to keep connect between Apps and Server. When client connected to your server, server will record which app is connecting.
TAG : xamarin
Date : December 02 2020, 10:46 PM , By : cico515
Your project file doesn't list 'win10' as a "RuntimeIdentifier"... error when running Xamarin UWP project
Your project file doesn't list 'win10' as a "RuntimeIdentifier"... error when running Xamarin UWP project
it helps some times What I had to do is: Create a brand new Xamarin app with a UWP project. Copy the contents of my original UWP project's csproj file into a text editor Copy the contents of the new UWP project file into the original. Replace anythin
TAG : xamarin
Date : December 01 2020, 04:50 PM , By : user3044734
How to display the alert after installation of application in Xamarin forms
How to display the alert after installation of application in Xamarin forms
I hope this helps you . You can try something like this. First install Xamarin.Essentials package from nuget package manager and use Preferences to save bool data to know if app already opened or not
TAG : xamarin
Date : December 01 2020, 04:40 PM , By : user3043614
Binding SkiaSharp's PaintSurface with Xamarin Forms and Prism
Binding SkiaSharp's PaintSurface with Xamarin Forms and Prism
I wish this helpful for you I'm trying to get SkiaSharp working with Xamarin Forms and Prism. I have it working with the following page behind code , So using a value converter solves it..
TAG : xamarin
Date : December 01 2020, 04:40 PM , By : Mark Rainey
Is BindableBase the correct conversion of Observable project from MVVMLight?
Is BindableBase the correct conversion of Observable project from MVVMLight?
will be helpful for those in need It really doesn't matter what the base class is. There is no explicit requirement that your ViewModel inherit from BindableBase for Prism to work properly. I have had several projects that use Prism for it's Navigati
TAG : xamarin
Date : November 26 2020, 03:04 PM , By : user3041605
How to change the default button color scheme throughout Xamarin Forms Prism application on iOS using Visual Material?
How to change the default button color scheme throughout Xamarin Forms Prism application on iOS using Visual Material?
I hope this helps you . In your App.XAML define the Style targeting the button with required visuals.
TAG : xamarin
Date : November 26 2020, 12:01 PM , By : yok
Is there a way to recognize a short or long press on a screen with Xamarin.Forms?
Is there a way to recognize a short or long press on a screen with Xamarin.Forms?
To fix the issue you can do You will have implement renderers for that. In case of iOS you can use UILongPressGestureRecognizer to detect a long-press action, while in case of Android, you can use GestureDetector to do the same.Forms control
TAG : xamarin
Date : November 25 2020, 03:01 PM , By : yurien728
A static variable dynamically set during startup of Xamarin Application
A static variable dynamically set during startup of Xamarin Application
wish help you to fix your issue You may need to use DeviceInfo Plugin for this. Nuget Package is here.Use Platform property to get the current Platform of the Device. It will return you an Enum value defining the Platform.
TAG : xamarin
Date : November 23 2020, 03:01 PM , By : praveen reddy
How to read a file in a shared Xamarin project?
How to read a file in a shared Xamarin project?
I wish this helpful for you If the type of your Core project is a NET Standard project you can just use the standard System.IO classes to get hold of the file system.If it is a PCL (you probably want to upgrade it) you can use the MvvmCross File plug
TAG : xamarin
Date : November 23 2020, 03:01 PM , By : Prisha Bhavin
Marking up Text in an MVVM cross platform scenario
Marking up Text in an MVVM cross platform scenario
will help you I went for an AttributedStringViewModel in the end that held the text as a String and then had a read only property (set in ctor) of a List of StringFormattingAttribute
TAG : xamarin
Date : November 20 2020, 03:01 PM , By : Daniel Sensebusch
Hide UINavigationbar and yet show Status bar on Xamarin.iOS
Hide UINavigationbar and yet show Status bar on Xamarin.iOS
it fixes the issue Status Bar:
TAG : xamarin
Date : November 09 2020, 03:01 PM , By : K. Mathew
Trouble binding Objective-C library to C# with Objective Sharpie
Trouble binding Objective-C library to C# with Objective Sharpie
To fix the issue you can do I quickly checked the LMGaugeView pod that you mentioned. Turns out, for that you have to have latest XCode and Sharpie (3.4 is current version).
TAG : xamarin
Date : November 07 2020, 03:01 PM , By : littlej1919
Is there any way I can add HTML into a Xamarin.Forms page?
Is there any way I can add HTML into a Xamarin.Forms page?
This might help you If you want full-blown html support, then Xamarin forms WebView would be way to go. But if you want some basic formatting support in Label as it's native counter-parts (TextView in android, and UILabel in iOS) do, you can implemen
TAG : xamarin
Date : November 04 2020, 03:01 PM , By : May Somebody
How can I add a line feed into a Xamarin.Forms label?
How can I add a line feed into a Xamarin.Forms label?
Hope this helps I just ran into this, but for me I was sending a string from a server to the device and needed a way to keep line feeds in the text. I ended up having to process the text on the device and find my special character and replace it with
TAG : xamarin
Date : November 04 2020, 03:01 PM , By : Daria
Does a <StackLayout> have some default padding or spacing?
Does a <StackLayout> have some default padding or spacing?
wish help you to fix your issue There's no Padding.There's a Spacing of 6 between each item (Horizontal or Vertical depending on Orientation).
TAG : xamarin
Date : November 01 2020, 03:01 PM , By : Darren Lim
How can I add two StackLayouts one on top of the other?
How can I add two StackLayouts one on top of the other?
Does that help The ViewCell accepts only one element as child. Just wrap your stacks in another StackLayout:
TAG : xamarin
Date : October 28 2020, 04:01 PM , By : Caleb Kirschman
When Cancel button in "MobileBarCodeScanner()" is clicked, Application Exits and Crashes!(Xamarin.iOS)
When Cancel button in "MobileBarCodeScanner()" is clicked, Application Exits and Crashes!(Xamarin.iOS)
This might help you Most likely it's because you have a Null Reference Exception. You are checking for result.Text to be null. But when the user presses Cancel, result equals null and so it can't reach the Text property.So just place a null check for
TAG : xamarin
Date : October 09 2020, 09:00 AM , By : Vasya Shevchenko
How do your write Xamarin platform specific code in a .net standard library?
How do your write Xamarin platform specific code in a .net standard library?
will be helpful for those in need You should not include platform specific code or use namespaces like the one you mentioned in your .NET Standard Library, the reason is that .NET is just a runtime environment. It’s not the the main runtime environme
TAG : xamarin
Date : October 09 2020, 03:00 AM , By : John Does

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