Custom Control Error only by Color Property
Hi folks, i get this ErrorXFC0009 No property, BindableProperty, or event found for "Attractive_BarColorLvl_1", or mismatching type between value and property. if i try to set a Binding to my Property...
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Need insert PIN code to access (view) settings page?
Hello, I have simple wearable app and button to push navigate to new setting page. On my settings page I have other buttons and stuff. Simply I need somehow after clicking setting button -> show...
View ArticleError when updating Xamarin Forms 5
I've got a project that was on 4.8 and I thought I'd update in 5.0 today but after fixing a few things (getting the Community Toolkit for the Expander for example) and building it crashes on startup....
View ArticleNavigationPage.SetHasNavigationBar not working on Android
Hello! I want to hide the navigation bar on a Forms-Xaml-cross platform app. I'm using NavigationPage.SetHasNavigationBar and it works on iOS but Android keeps showing the bar public Login () {...
View ArticleWhy does my custom button lose corner radius when changing the background colour
Hi Am new to custom controls in Xamarin, but after doing some research I have managed to create a custom button with rounded corners. Is used as a font style button (bold, italic) such that the...
View ArticleIs there a way to get sql lite database (*.db3) using another android...
Tried to convert it to stream so I could store it somewhere. But I was unauthorized to do that? Any alternatives? var appDirectory = FileSystem.AppDataDirectory; var sourceFile =...
View ArticleHow can I save a image from stream to my Android device's folder in...
I'm capturing screenshot from a XAML element using the ImageFromXamarinUI plugin and it returns me a Stream. public ICommand CaptureCommand => new Command<VisualElement>(OnCapture); async void...
View Articlecan not find items in viewmodel in a collectionview when the page datatype is...
when I set the x:DataType of the contentPage to its viewmodel it can not find the property which in the collection view's dataTemplate <CollectionView ItemsSource="{Binding Items}">...
View ArticleWhy is e.Info.Width the wrong size?
Given the following: public void CanvasViewOnPaintSurface(object sender, SKPaintSurfaceEventArgs e) { SKImageInfo imgInfo = e.Info; mSurface = e.Surface; mCanvas = mSurface.Canvas; mCanvas.Clear();...
View ArticleHow to prompt the user for new upgrades to the App?
Is there anything built in to Forms that will check if a new version of the App is available in the App Store and prompt the user to run an upgrade? Or any third party libraries?
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How to change the Thickness of OUTLINE / BORDER frame ?
Hi, I want change the Thickness of a Frame border. I my phone the border is VERY small.. My code : <Grid RowSpacing="0" ColumnSpacing="0"> <Grid.RowDefinitions> <RowDefinition...
View ArticleAndroid KeyboardView is obsolete
Currently using Xamarin.Forms Version="4.8.0.1269" The android SDK version is set to android:targetSdkVersion="29" I implemented a custom keyboard for Android (found an example) The custom keyboard is...
View ArticleVNDocumentCameraViewControllerDelegate How to get images back from Vision Kit
am using Vision Kit in Xamarin Forms, so far I can take the picture but I am not sure how to actually save the picture or do any operation with it after.. Can you please advice how to access the...
View ArticleXamarin Forms UrhoSharp support
Hello I am new to the xamarin develoment and I am looking to improve my skills in the development of cross platform application. Recently I have came across the library (UrhoSharp) that can be used in...
View ArticleHow to force open (show) app from xamarin code?
Hi, is there any option to open my app if someone close it? For example - I have BPM measuring app and let say, if somehow client has over the setted range, I need show him notification / message. This...
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Use concurent garbage Collector is Default in VS2019?
I have just created a new xamarin.forms app and when i check the android settings for release So Use concurent garbage Collector is default now? what are the advantages of it and can we rely on it?
View ArticleI added View Page in AppShell, but i got error.
I created view page and added Appshell, but when i clicked my View page, there is error. "System.InvalidCastException: 'Specified cast is not valid.'" I don't know what is reason why i cannot add new...
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How to put a home screen ?
Hello I am trying to put a presentation screen that lasts 1 second but I cannot find how to do it ... Thank you for the time you give me... For exemple :
View ArticleXamarin Forms Visual Material
Hello! I use Entry with Visual="Material" and set BackgroundColor = "Transparent". If use nuget package Xamarin.Forms-1829-pre6 (or above) and Xamarin.Forms.Visual.Material-1829-pre6 (or above)...
View ArticleNavigation using FlyoutPages
Hi, I'm am trying to use navigation in my app but everything I try has problems. I have tried Shell and navigation pages but I am using FlyoutPage’s so when I move to the next page the flyout(master)...
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