Performance Issue
Hey guys I am facing a problem that I don't know much what to do. I am developing a Xamarin.Forms application that whenever I am in the battery economy mode it becomes very slow when I leave the app...
View ArticleProGuard Problem
Hello, I'm having a problem when generating the apk file. This happens when I activate the proGuard. What I've done so far: Reinstalling the SDK files; Downloading the latest proGuard and updating the...
View Article[Duplicated] - Proguard and FirebaseMessaging
Sorry for duplicate, I got some 404 error, how to remove this post ? Today I faced new problem with my app, after I changed target type to aab and enable code shrinker. App crashes on startup with...
View ArticleProguard and FirebaseMessaging
Today I faced new problem with xamarin app project, after I changed target type to aab and enable code shrinker. App crashes on startup with error:java.lang.RuntimeException: Unable to instantiate...
View Articlexamarin android read sms Inbox messages
hi Use the following code to display sms in listview. The problem is that it only displays one message, it does not display all messages and does not work on Android devices above 5 AndroidManifest.xml...
View ArticleAndroid with Xamarin.Forms with EF Core 3.1 for SQL Server
Does EF Core 3.1 support Android with Xamarin.Forms? I can't create simple working solution with access to SQL Server database. The details are available in the discussion at...
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How to update Label while changing text in the NSTextfiled?
I am trying to update a Label while editing the text in the NSTextfield. How can I update the label in realtime? Also, how to handle keypress events in MacOS using Xamarin.
View ArticleSystem.ObjectModel Missing
I have been trying without luck to create Hello World app using Xamarin Forms, on Windows 10 using Visual Studio 15. After installing the latest and greatest and creating Blank App (Xamarin.Forms...
View ArticleXamarin iOS Azure Notification Hubs with Xcode 11.3 and iOS 13.3 Issue
Hey we're hitting this issue on all devices with iOS v13.3.1 with Xamarin IOS. It seems to be related to a change in the format for the device token: iOS 13.3: {length = 32, bytes = 0xf1d219ab c4aab6f4...
View ArticleDynamically add toolbar
Does anyone have any code to create an Android.Widget.Toolbar dynamically? I tried the following (Resource.Id.main_linearlayout is the id of the only LinearLayout tag): var root_layout =...
View ArticleHow to Test/Connect to IPv6 on Xamarin Mac
I have 2 network interfaces on my iMac, ethernet and wifi. There's a device with an IPv6 address connected to the wifi network. I want to test its reachability and ultimately connect to it. I can ping6...
View ArticleHow to fire a "Complete" event from ViewModel?
I have a entry with complete action:<local:BaseEntry Placeholder="Email Address" Keyboard="Email" x:Name="EmailEntry" ReturnType="Next" Completed="{Binding GoToPassword}"/> I want to focus to the...
View ArticleAdMob appears only after rotation
Hi ! I implemented AdMob in my Xamarin.Forms app (VS2017 community) following guidelines from "AdMob In Xamarin.Forms – Display Google Ads In Your Mobile App" (posted by: Adam Pedley in Xamarin Help...
View ArticleHow to set focus on next entry in Listview
i want focus on next entry in List-view, if the user click on completed event
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Errores en Xamarin.forms
Buenas noches, por favor su ayuda, estoy tratando de auto-educarme en el desarrollo de app multiplataformas por lo que me intereso mucho aprender Xamarin, pero me estoy dando contra las paredes porque...
View ArticleIs it possible to cancel an async loop task using a button from another...
I have a footer with a button and I'd like to use this button to change page and cancel an async loop task from the content page. When I click on the button, the page changes, but the task continues....
View ArticleHow to avoid OnCreate method execution when activity has been opened...
I have two activities FirstActivity and SecondActivity. When I am in FirstActivty I call the SecondActivity like that: var secondActivity = new Intent(this, typeof(SecondActivity));...
View ArticleXamarin.Forms Android app Lags when switching Master-Detail page
I'm using Xamain.Forms version 4.5.0.356. Any suggestion on how to solve this? Thanks in advance.
View ArticleR8 enabled gives build error: Compilation can't be completed because some...
Currently we are trying to change the Multi-dex from dx to D8 but unfortunately we are getting a build error after doing this. The build error we get is: R8 : warning : Missing class:...
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