USB Bytebuffer error when reading data from USB. Xamarin fails but Android...
Hi I am trying to port reading USB data that works in Android but not in Xamarin version of Android. Basically I am sending various proprietary commands that gives me corresponding data related to it....
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Pass Array as parameter in constructor in xaml
Hi. I'm trying to pass an Array as an argument to a constructor in xaml, like this: I'm filling the PartNumberDataList and PartNumberDataListID - arrays with values in the xaml.cs-file. The constructor...
View ArticleHow to do analytics in App Store Kids Category
I just had my app rejected from the app store and I am having trouble with interpreting what is acceptable to pass. My app needs to go into the "kids category" so there are more strict rules to...
View ArticleSend SMS automatic
I am making an application where there is a button and pressing it should send photos or videos. Howevee, it should be activated automatically without the user intervening, in fact without realizing...
View ArticleMemory usage keeps increasing in Tableview
Hi, I have xamarin application running on IPADS having IOS 13 and above. I have a page in my application which using table view for displaying 1000+ rows data. Row data comprises of textual information...
View ArticleAndroid Top Back Navigation Button
I have a shell application. I am seeing something strange and I cannot track down, I am obviously not fully understanding shell navigation. If I add the following line of code await...
View ArticleTask.Delay for long times doesn't work
I have a Task.Delay() function. The code activates it, and waits for 10 minutes. Works fine. The code activates it, suppose to wait 1 hour, but it always waits more ! (more = few minutes more). I...
View ArticleWhy Glyph property in FontImageSource doesn't bind?
Hi community. I have a strange behavior with FontImageSource. I can't get property binded to Glyph. <ContentPage.BindingContext> <documents:DocumentListViewModel />...
View ArticleDatabinding not working in label inside listView
Hello there, I'm using a ListView with interaction with database but currently I'm having a problem while binding some data. Here's my query on database : public async...
View ArticleUnable to open storyboard file in visual studio enterpresise 2019 16.6.0...
Every time i try to open a story board in visual stuido i get System.AggregateException: One or more errors occurred. Visual studio 2019 is up to date as well as Visual studio for mac (8.6 preview),...
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How to connect MySql and Xamarin.Forms?
I have a task: make a connection between Xamarin.Android and MySql DB, wich is located on db4free.net Everything works for PC, but for Android there is an exeception: Why is it so? the code is: string...
View ArticleScanning App in Xamarin forms using custom renderer
I have to implement a Scanning App in Xamarin forms. I want to use AVFoundation for iOS Google Vision for Android. can you please tell me how to achieve it. I tried ZXing but It is creating issue with...
View ArticleHow to stop loading duplicate item in Listview using Infinite Scroll.
I had facing a problem. I have 10 item in my database. i load 10 item on the list, when i scroll down same item load again again. how could i stop this problem. It will be helpful if anyone have a...
View Articleerror when i try to run an ios app paird to mac
Can not resolve reference: /Library/Frameworks/Xamarin.iOS.framework/Versions/Current/lib/mono/Xamarin.iOS/Facades/System.Buffers.dll ?
View ArticleGmail Authentication in Xamarin forms
How to do gmail authentication in xamarin forms apps after shutdown google plus API. I found some of the tutorial on internet but all of are did using google plus api but which is not support now....
View ArticleAutomation Testing - Unable to automate Xamarin.Forms SearchBar
I have a Xamarin.Forms Search Bar for which I have provided Automation ID as below. I am using BrowserStack or Appium for automating test cases. I am able to spy the Searchbar control and am able to...
View ArticleHow to set font family to whole application?
Hi guys, I have added a custom font in my app and want to set it as the default font to the whole app. Any suggestions on how to do this? I tried a lot, for example making a style in ResourceDictionary...
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Ios wkwebview does not display videos attribute
I have a wkwebview based iOS application and in this application users need to see videos. In het web project it all works fine, User see videos and can run the videos. However in xamarin Ios the user...
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OTA Distribution doesn't work anymore on IOS 13 ?
Hi everybody, I want to distribute an ipa file by internal server using a html web interface and a link on a plist file .xml. This worked perfectly on IOS 12 and prevrious ! Now on IOS13 we get the...
View ArticleSending UDP commands I get System.ObjectDisposedException error
Hello: I have two buttons for two differents devices, each one send a different UDP command (ip, port and message). The problem is that the first time I run the app it works, only the first command,...
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