How to set the Selected Item of a Picker Control through View Model (MVVM)
Hi there, I will try to explain this as best I can so please bare with me: Background: I have two pages that interact with each other - a customer page (CustomerPage) which stores a listing of...
View ArticleWhat is the best back-end web development language?
What is the best back-end web development language?
View ArticleInvalid Symbol
Hi there, My Android project in Xamarin keeps failing to build due to below error invalid symbol :"default" default.png res/drawable/default.png not sure what is causing this to happen. Any help will...
View ArticleXamarin Forms not Debugging and ZXing freezing all the application
Hey you guys, I made an application to read some QR Codes using Zxing on Xamarin. Days before yesterday, it was working good, but since yesterday I have this problem: I put a breakpoint in...
View ArticleHow can I make a local storage storage file for mobile app
I'm building a Xamarin CrossPlatform app all of its database is in cloud api's, but I want a local storage file in mobile which stores all login credentials whenever someone is login. Kindly help me...
View ArticleXamarin Forms Cross Platform using Polly
Hi Guys, I'm getting the below error when i execute my policy. "08-10 01:57:31.434 F/ ( 6684):...
View ArticleFirebase Messaging (FCM) OnMessageReceived Running Twice
Good day I am using Firebase Messaging to send/Receive Push Notification on Android. I've got the following implementation which is triggering OnMessageReceived twice on Android v 8.0, after rebooting...
View ArticleValidation for number and decimal point
Hi, I want to validate only numbers and decimal point in Xamarin forms. In entry field i kept Keyboard="Numeric" and in Validation class public class ValidationBehavior : Behavior { //const string...
View ArticleAndroid Emulator taking good amount of time to launch the application
Installing the Mono shared runtime (debug - 1545409236)... is taking good amount of time to restart android emulator. On the screen of emulator it shows "Android Restarting". Am I missing any settings...
View ArticleHow to Work With Xam.Plugin.PushNotification
Severity Code Description Project File Line Suppression State Warning NU1701 Package 'Newtonsoft.Json 8.0.3' was restored using '.NETFramework,Version=v4.6.1' instead of the project target framework...
View ArticleWhy would OnPause and OnResume get called while the app is still the...
I'm running into an oddity where the OnPause and OnResume methods are being called after the app has been sitting, unused, for about 55-60 seconds or so. The screen isn't locking and the app isn't...
View ArticleZXing.Net into standard .net 2.0 library and Xamarin application
Hi, I'm new to Xamarin and this whole .NET, I,m starting a new project and I was creating .NET library 2.0 to put the commun code. I have a need to extract multiple barcode from an image and was using...
View ArticleMaster-Detail Page as a Navigation drawer?
I need a side navigation drawer in the application, the functionality provided by the Master-Detail Page is not compatible with my needs, I need to have the drawer in the MainPage only and to behave...
View ArticleHow to set up the input method correctly für the phone input panel?
Hi there, I am having problems with the "phone" input type. If i choose this the input panel looks right for my purpose, but I could not enter any characters. So they are inactive and I could only use...
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WebView error TLS 1.2 - Help
I have an application with WebView, on Android it works perfectly but in IOS I'm getting a TLS 1.2 error. 2019-01-25 22:30:17.686174-0200 CIPLAN.iOS[3765:60722] SecTaskLoadEntitlements failed error=22...
View ArticleXamarin.Android CI Builds on VSO
Anyone has success stories to share? I have my Xamarin.Android in VSO and I am trying to setup a build definition. First I was getting this error The specified solution configuration "Debug|BWS" is...
View ArticleChangeCanExecute is not working, why?
Hello there! I have some commands on my ViewModels, and I realized that I can them multiple times at the same time, and is getting me some troubles with updating data from a WebApi. The basic structure...
View ArticleUWP Project throws error after random amount of time
Hi folks Since the very beginning of Xamarin.Forms every now and then I had this weird issue where the UWP Project, after weeks or months without changes but relatively frequent builds and rebuilds,...
View ArticleHow to fix a nuget package installation error
Hello everyone My problem is about installing nuget Xamarin.Essentials package for Android. To isolate the error I started a new empty Xamarin project that I called "test". I am installing this package...
View ArticleMandatory app privileges
Hi, I'd like to double check something, please correct me if I'm wrong: Using a NuGet package that has code that use camera (in my case ZXing.NET.Mobile that is able to scan barcodes), my assumption is...
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