ZXing.Net.Mobile (Xamarin.Forms/Android) Scan on different pages do not...
I have implemented a Xamarin.Forms App focused on Android which should scan barcodes on different pages. (Followed this description...
View ArticleIs there a way that the keypad doesn’t get disappeared while doing entry on...
While on a screen with the keypad open on a smartphone, when i click on something other than entry on that screen the keypad disappears, is there a way to fix this problem ?
View ArticleListView : Items are duplicated
Hello everyone ! Here is my issue, on my ListView I have an button inside, when i'm clicking on it, the color change, but when i'm scrolling further in my list, some others buttons (every 5 or 7 rows)...
View ArticleHow to draw on Image captured from camera and then save it.
Hi, I want to draw on image to highlight specific part of the image(draw circle etc.) and then save highlighted image.
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Connect Xamarin App with Web app using random code pairing
I have a requirement.I am developing a Xamarin TV app which will receive notification from ASP.Net application. If i want to add a new device to web application, 1.first open the TV App 2.generate a...
View ArticleHow can I speed up data added to sqlite database
Hi I am developing an application with Xamarin Forms. What I do is take the data provided as a service and add it to the sqlite database and update it if there is any. But this process is very slow. Is...
View ArticleData is not getting deleted using web api in xamarin forms
Hello Sir, Below is the code for deleting data from database using web api, but here the data is not getting deleted. please help //code for web api public Response deleteprogressnotes(Progressnotes...
View ArticleSeverity Code Description Project File Line Suppression State Error...
Severity Code Description Project File Line Suppression State Error Xamarin.Android for Visual Studio requires Android SDK. Please install it or set Android SDK path on...
View ArticleADB1000: Deployment Failed... (Deployment Error)
Hi. I just updated Visual Studio 2019, and I keep getting the following deployment error message: "ADB1000: Deployment failed..." and "ADB1000: System.ComponentModel.Win32Exception(0x80004005): The...
View ArticleHow do I publish a message from a static class?
I have code that follows the pattern below. (Sorry for its length; this is a problem spread across a few files.) I have a base class that implements a system like INotifyPropertyChanged but uses the...
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Calling a method in the viewmodel from OnAppearing in codebehind
Hi, I'm trying to populate a username and password in my xaml page when the page loads. The strings in class LoginViewPageModel are LoginEmail and LoginPassword and have bindings to my text boxes, they...
View ArticleXamarin forms: Contact search returns no values
I have done the fetching of contacts from the phone using this blog. My Code: XAML <StackLayout> <SearchBar x:Name="filterText" HeightRequest="40" Text="{Binding SearchText}" />...
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Viewing a local SQL Database (based on tutorial)
Hi! I'm not new to Xamarin, but I'm new to SQL databases in Xamarin. I want to create a simple app (practise-app) where I can save values to a local database and read these values. I used the following...
View ArticleHow to define a plattform specific, light and dark mode dependent color (for...
I like my Navigation Bars to have different BarBackgroundColor & BarTextColor. It worked fine so far like follows. But now I have problems to alter Colors with regard to OS light mode and dark...
View Articleis it possible multi color of indicator for each tabbed page?
is it possible multi color of indicator for each tabbed page? if is custom renderer please help me android and ios thanks..
View ArticleCan we consume REST with HTTPS self-signed as a Release (not as Debug)?
I'm running the Xamarin tutorial at https://docs.microsoft.com/en-us/samples/xamarin/xamarin-forms-samples/webservices-todorest/ and it is working fine in Debug mode. The project implements an...
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Sudden error: "expected color but got (raw string)" in Android
Hi! I've updated Visual Studio to version 16.7.1 and ever since I did that I get an error which was not there before: This only happens with Android. Line 4 in styles.xml is this: I read something...
View ArticleCollectionView disable selection of an item in collection
I'm working with the CollectionView (with a selection mode of Multiple) and I'm having problems disabling the selection of an item in the collection. As a result, I'm attempting to reverse the...
View ArticleStyle methods
Hi I have come across two methods of styles as below; one of them uses ResourceDictionary. What are the pros and cons, or is it just individual preference? Thanks Regards <Shell.Resources>...
View ArticlePRISM / ListView ItemTapped Questions
I am using PRISM to catch the ItemTapped-Event, like so: <ListView.Behaviors> <prism:EventToCommandBehavior EventName="ItemTapped" Command="{Binding BindingContext.ItemTappedCommand,...
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