i have a .so file.I want value of API(c++) int RFIDAuthenCard(char nBlock,...
namespace embeded_test { public class embeded_test { [DllImport("libszxb.so")] public static extern int RFIDAuthenCard(int nBlock,string keyType,[In,Out] string[] key); } public partial class MainPage...
View ArticleWhere to find the symbolic versions of my app, to use the ndk-stack tool for...
https://developer.android.com/ndk/guides/ndk-stack I'm unable to find the correct folder in which the app is represented as Debug or Release symbolic version. In order to translate the android...
View ArticleHow to hide tab bar on push in Xamarin.forms Tabbed Page?
I need to hide the bottom tab bar when pushing to a new page from a tabbed page. Any solution?
View ArticleApp closes after home device button press (not going to sleep/resume)
Hello guys i have an app to create and i have problem with closing my app. When app will start and i press home device button (on Android) app closes (app is going to sleep but immediately exit)....
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Is IsPassword property changes FontFamily of an Entry?
Hi! I am developing a LoginPage with a password field that contains an input component. (Let's call PwdEntry) My PwdEntry has the IsPassword property set to True in xaml and I have changed the...
View ArticleSystem.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
I am developing an app in Xamarin.Forms (iOS) .In that i am getting frequent crashes with log message as follows: at System.ThrowHelper.ThrowInvalidOperationException (System.ExceptionResource...
View ArticleDisplay Alert removed programmatically?
I'd like to pop-up a message box that I can remove programmatically (without the user having to press OK). Is this possible with the current controls? There are two use cases: 1) remove it after a...
View ArticleError when calling wcf service in Xamarin Forms
I'm trying to call my wcf service connected to my local database from an Android Emulator API 25 Nougat using xamarin forms and I get this error. I'm new to this so probably I'm missing some...
View ArticleHow to use or call my Resource Dictionary in codebehind or C#
Hi Xamarin Forum Can anybody help me how to call my Resource Dictionary from App.xaml to xaml.cs I already tried the following stacklayout_name.Resources["StackLayout2"].ToString();...
View ArticleHow can i change view label color from view model.
I want to show error to user after form validation. I am doing validation in my command can execute method. If validation fails how can i tell user about the error in input?
View Articleplugin.media manager doesnt play audio and video
hi <forms:VideoView WidthRequest="360" HeightRequest="202" /> CrossMediaManager.Current.Play(videourl, MediaFileType.Video); VideoViewRenderer.Init(); i use this code but when i run my project it...
View ArticleHow to send an automated mail to user's mail id on a button click
Hi, I am struggling to create a method that sends an automated mail to the user's mail id. It is used for authentication purpose. It would be kind if anyone can share any suggestions on this. Regards
View ArticleIs an implementation of VerticalTextAlignment for a Entry possible?
I know that you can set the HorizontalTextAlignment for Entries, but how come there are no VerticalTextAlignment Options? I need this: Entry.VerticalTextAlignment = TextAlignment.Center; This is...
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Tint size not correct in Xamarin Forms with .NETStandard 2.0
I created a new xamarin forms project with .NET Standard 2.0 and in the sample i changed the label to Button and added the background color. While the button is clicked the ripple animation is shown...
View ArticleInvalid iTunesArtwork dimensions (1536x1536)
Hello, I Just made a new Prism Xamarin.Forms project with Unity. If I want to deploy on iOS device "iPhone" this error appears: Invalid iTunesArtwork dimensions (1536x1536) for...
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Custom Renderer not compiling
I want my ListView to always display the scrollbar, and then I want to specify the width of the scrollbar (the next stage). So I have been advised this can be done by using a custom renderer. It looks...
View ArticleWhy my Android app crashes and throws ANR - How to understand the reason?
Hi, My app is crashing and throwing ANR report in Google Play Console but I don't know why and where is the issue? The error says: Broadcast of Intent { act=android.intent.action.SCREEN_ON...
View ArticleWhat event do I need to make the verticle scrollbar visible?
I have my custom renderer for the ListView control and the intention is that the scrollbar is always displayed. According to the Android documention this can be done;...
View ArticleTrouble with Navigation Bar in MasterDetail Page
Hi I'm having trouble with the MasterDetail Navigation on the detail page. I would ultimately like to hide the navigation bar so that I can create a very custom look and feel I have tried adding...
View Articleunable to deploy my android application on android accelerated X86 oreo...
Hi , i create a sample application in xamarin forms. after building the project, i tried to deploy on emulator(android 8.1 oreo). i am getting the following error. please help me. 3>No way to...
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