How to detect key presses when nothing has focus.
Hello, I am writing an app for an Android-based scanner. Scanned data is sent to the app as keystrokes (even though the keyboard is not displayed). This works great as long as an entry field has focus....
View Articlemodify image pixels in forms
Hi I want to change a collared image to greyscale before I show it on the screen. Can some one please tell me why my code below is not working? private byte[] ConvertMediaFileToByteArray(MediaFile...
View ArticleHow to refresh list in xamarin form
Hello, public class Product { public int ProductID { get; set; } public string ProductName {get;set;} public int Quantity { get; set; } public double Price { get; set; } } List product=new List(); I am...
View ArticleValueConverter with Bindable Property
I have a Xamarin project, and I am trying to get a binding on my ValueConverter. I accomplish this in my UWP project, but in Xamarin I am getting a compilation error: No property, bindable property, or...
View ArticleRam/BatteryConsumption using Xamarin UI Test
Hello Folks, I went through the Xamarin UI Test API https://developer.xamarin.com/api/namespace/Xamarin.UITest/. I did not see any API to see RAM, battery consumption. When I run the tests locally on a...
View ArticleGlobal styles which are coded in visaul studio 2015 project are not working...
Hi Guys, Last year i have created a project of Xamarin forms in VS 2015 and i have wrote global styles in APP.xaml page they were working perfectly and and published also. Recently i have installed VS...
View ArticleMy entry placeholder text is cut by the half
Hi, I have a entry with a placeholder text I used that like a search bar, in some Android devices the text appears cut by the half, I try resize the FontSize but dons't work, anybody can help me?
View ArticleCustom Renderer Not Working
So I've followed a YouTube video and the Microsoft docs on this but it still isn't working. I have a page with my custom renderer on it, which I've used the namespace for... <local1:RoundedEntry...
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ANNOUNCING: ComboBox and Floating Label Entry for iOS and Android
Hey folks, just wanted to let you all know that I've open sourced my Material Entry and AutoComplete (called ComboBox) today. Take a look and use it if you like. note: only for Android and iOS at the...
View ArticleOnSizeAllocated, UseSafeArea, changing layouts by orientation on iPhone X
We use OnSizeAllocated to drastically change our layouts between landscape and portrait modes. Having to do an update, which means I finally have to deal with the iPhone X issue. I've found a problem...
View Articlewhy cant show pdf in pdf.js in UWP?
Hi. I've been using pdf.js and a weibiew render to show a pdf or word file in UWP; in Release and Debug mode if it works, but when I generate the .appxbundle and install the application, I get a...
View ArticleHow do I set the ranking star value?
Guys, I'm using a ranking stars system found on this github repo: https://github.com/nishanil/Xamarin.Forms-Samples I would like to implement a simple function where I can set the ranking stars by...
View Articleshare data between views in carouselview
Hello everyone!, somebody knows how can I share an object or a variable between views in a carouselview page that receive a parameter from another page? thanks in advance!
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Type Local Not Found In xmlns clr:namespace
Hi Team, I am trying to implement MVVM example from your tutorial. Now when I am trying to ClockViewModel.cs access from .xaml, I am getting error I have already tried to get solve this issue from...
View ArticleAccess list data from tapgesture from image inside viewcell
I have a image inside a ViewCell, I've added a TapGestureRecognizer to the image, now when the user clicks the image I want to Access the data from data ViewCell How can I do that? Thanks
View ArticleSolution not building due to Xamarin.Forms.Build.Tasks.GetTasksAbi task not...
I have just installed VS 2017 Community with the Xamarin forms add on. I tried to create a test application for Android and iOS but I cannot get it to build even without touching any of the code. This...
View ArticleXamarin.Forms.Build.Tasks.GetTasksAbi" task could not be loaded
The "Xamarin.Forms.Build.Tasks.GetTasksAbi" task could not be loaded from the assembly C:\Users\Asus.nuget\packages\xamarin.forms\3.0.0.550146\build\netstandard2.0\Xamarin.Forms.Build.Tasks.dll. Could...
View ArticleHow to decrease size of apk in Xamarin forms.
This is my first try at release app. I am registering and logging in app via Web Api. I have a live website and have written Api Service for that. It is working fine and then i released the apk....
View ArticleHow to restrict numeric values entered into an Entry field.
I need to restrict the value being typed into an Entry field to values between 0 and 20. However, I don't want highlight it in red if it's outside that range or anything, I want to actually prevent the...
View ArticleHow to force a refresh of a page?
I have a page with a 'button' (actually a TapGestureRecognizer on a StackLayout). When pressed I add or remove some things from another StackLayout in the page. The problem is that on Android after...
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