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How can ı connect to mysql server? Cross Platform

I've installed the necessary nuget package and mysql connector. and I get this error? Can't connect directly? Or should I use any web service? and if the web service is required, how is this connection...

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Giving the users the ability to change the app icon on iOS.

I have several different designs for an icon I can chose between and I hope there was a way in Forms to let the users pick their favorite icons. Can anyone direct me towards a guide or helping achieve...

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How can I tell which item assoicated with a TimePicker in a ListView has been...

I have a ListView that includes a TimePicker: <ListView.ItemTemplate> <DataTemplate> <ViewCell> <StackLayout Orientation="Horizontal"> <TimePicker Time="{Binding MyTimeSpan}"...

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iOS App Store Submission Fails

Uploading the *.ipa file with the Application Loader completes and uploads the file to the App Store. After it is uploaded the automated code checking removes it from the queue and provides the...

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calling Android specific SDK functionality using dependency injection

Hi, I need to implement functionality provided by a SDK only available for Android in my Xamarin.Forms application. I understand the basic of dependency injection but I'm still a big noob I don't...

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Build status has changed to Invalid Binary

Hi, today, after uploading a new Version (Build with VS 2017 15.9.11, XCode 10.2, Xamarin.iOS 12.4.0.64) of my App, I got this mail for the first time. But I don't understand this. How could i solve...

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Image Extension

This is more of a VS for Mac question than a Xamarin question, but be it that VS for Mac is based on Xamarin Studio and MonoDevelop, this seems like maybe the right place to ask. In Xcode I can easily...

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Listview items ItemVisibilityEventArgs erroneous behavior

I am trying to do tasks based on item visibility in listview in Xamarin Forms, but this functionality is erroneous or I am doing it wrong. Example: I have 30 items in listview, though i can only see 7...

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How to adjust a label and icon at the same height

Hello, I'm new to Xamarin.Forms and have been struggling to create a grid where there's a header for each column of the grid that is basically the title and an icon to order by the title ASC or DESC. I...

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Remove duplicate tokens in RadAutoCompleteView

Hello. How can I set a listener to the RadAutoCompleteView so everytime a token is set from the ItemsSource list to Tokens list, I remove that token in the ItemsSource so no duplicates appear in the...

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Handling files securely in Xamarin Forms

I am implementing a cross platform app which will pull PDF documents from a Web Service. These PDFs need to be completely inaccessible from outside and can only be viewed when authenticated in app....

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Error MT2002

Xamarin Forms project, visual studio 2017 15.9.4. I compile a project with connection to macbook. C:\Program Files (x86)\Microsoft Visual...

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Xamarin.Essentials Share Images

Just a question on Xamarin.Essentials-Share. Can we use Xamarin.Essentials plugin to share images?

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Communication between devices

Greetings friends, I have an app that takes a picture but I must do a task that connects three devices and if any of them precionana the button to take a photo should trigger the function of taking...

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Title icon of page is not showing

Title icon of a page is not showing in android, how can i resolve it please help.

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How to show Activity indicator or loader on splash screen.

Hi, is there any way to add loader on splash screen.

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Slow image source binding

I have an image that is displayed on every page that is source bound, and whenever I go to a new page it takes half a second to a second to load that image. Is there some way I can make sure this image...

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iOS code signing key not found in keychain

After having successfully built, tested and published a Xamarin Forms app both for Android and iOS I'm suddenly no longer able to build the iOS version. I'm getting the "iOS code signing key not found...

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Ripple effect in xamarin forms android?

Hi All, I want to give ripple effect to every control on screen like label, image etc. Currently I have added the ripple effect only to button. Please help me out......

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Dynamically generate TableView from C# classes

I want to generate a tableview, where the sections and table would be generated from the values retrieved from the database. I followed this link, and followed the approach which says how to create a...

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Use of Xamarin.mobile libraries, but they don't work

Good Morning, I am studying and am at the first of my multi-platform app on Xamarin.forms and it asks me to use the Xamarin.mobile libraries, but in the Android project after installing them as if they...

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Forms (Android) archiving error "an item with the same key has already been...

My project builds OK. the iOs version is fully uploaded but when I try to archive the latest version of the Android app it gives the above error There are numerous references to the phrase "an item...

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ScrollBarVisibility in CollectionView

Hello, Can we use this method HorizontalScrollBarVisibility and VerticalScrollBarVisibility for a CollectionView ? Thanks,

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Out of memory exception when i try to do thorough testing as i change the...

I'm trying to test my app for language changes and check how the popup is shown in each language. After 6-7th time i get out of memory exception in debug mode. the data usage of app showed these...

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ZXing Barcode Scanner accessing camera gets progressively slower when...

Hi, Wondering if anyone has noticed this issue. I'm using the ZXing barcode Scanner in a view and each time a barcode is scanned I'm closing the scanner to give the user visbility of the scanned item....

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Place Image over Frame

Hi, I'd like to ask how can I place an image over the frame to show like the below image? I mean the image will be vertically centered on the frame line and horizontally centered within the frame...

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Is it possible to integrate google tag manager (GTM) in Xamarin forms app?

I am trying to add google tag manager (GTM) to Xamarin forms app? Does any one integrated it before? Is there any working sample code available? Pls suggest

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How do I "delete" AndroidManifest so that Xamarin builds a new one

Hello. I am having a few problems in my project, and I think one of the reasons could be the "weird" AndroidManifest I have. I played with it before when I didn't know much about it and I am not sure...

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White Screen in Xamarin forms

Hello I have an app that is working well, but I update it for the Android version 9 and when the splash is over the menu must be displayed but nothing is displayed, the app is left blank and does not...

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' NavigationPage.HasNavigationBar="False" ' not working when directing to page

Good afternoon! I did this once in Xamarin.Android but can't make it work in Xamarin.Forms: My first page (LoginServerView) consists of only an Entry where the user will type down the server he wants...

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My app icon can't be shown on Android 8 and 9

The icon shows on my Note 5 with Android 7. But it can't be shown on a S7 with Android 8 and a Note 8 with Android 9 (also can't be shown on the emulator with Android 8.1 API 24). I already put my...

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Download folder Access, subfolders creation in Xamarin.Forms 3.4.0.1029999

Hi folks, I try to use this piece of code in Xamarin.Forms NET.Standard code sharing project but raises a Denied exception. Why? How can I create subfolders in Download folder (this is a mandatory app...

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Is it possible to integrate google tag manager (GTM) in Xamarin.forms app...

Hi community, i need implementy the GTM by tracker events, por example when the user do clic on button Login, i has search in many pages, but without success, somebody know how i can integrate this...

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After Adding Images in Resources Drawable Folder(PCL --> Android), I am...

Including Image to the project leads to these errors. (lst1.png) Any help? Thanks in advance.

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App Data Grows Extensively When Taking Photos

Hi Guys, I'm writing an app that allows the user to take photo's (using Xam.Plugin.Media) and then display them in a list view. I noticed the app data growing with each photo taken. And I'm hoping...

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Pie Charts

In my application I want to Use PIE CHART implementation to display the data. Can anyone pls help me.

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How can we make Responsive Web Design in Mobile By Clling WebView ?

I want to Call My Website By Webview and I have to Remove Unwanted Stuff of Website in Mobile Is it Possible to Do.So that it can be Responsive in Mobile

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Read and convert gzip response to json

I am working on xamarin forms project and I want the correct way to read and convert gzip response to json in my application.

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How to get type length of bytes ?

I write the code to iterate the class properties. static class PacketCoder { public static byte[] PacketToData<T>(AppSignal signal, T packet) { byte[] dataBuf = new byte[1000]; byte[] dataTemp =...

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Cross Platform Camera Frame Analysis

Is there a way I can access ios/Android camera frames to do real-time frame analysis?

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