Windows (Phone) Picker: Howto set Textcolor by more than 5 Values
Hi, I have build a custom renderer to set the Textcolor (Foreground) for a Picker on Windows Phone. `public class WindowsPickerRenderer : PickerRenderer { private static Brush _textColor; private...
View ArticleProblems with UriImageSource cache and images
If I have 30 images with URI sources, then Xamarin fails to download them all, and some of them show up as empty. The matter is made worse by the fact that the empty (or failed) images are cached. I am...
View ArticleReplace a modal with another modal
Hello, Is it possible to replace a modal with another modal? I'm opening a modal from a ContentPage usando Navigation.PushModalAsync(). The constructor object receives two parameters that I want to...
View ArticleVery High Memory Usage with Simple App
As I began UI Testing my Xamarin.Forms application I noticed Peak memory usage of > 220MB. This seems high to me. So I created a blank Xamarin.Forms app from the template. i.e. the app that says...
View ArticleHow can I stop Device.StartTimer?
When I use System.Threading.Timer I can stop my timer and start it again: protected override void OnScrollChanged(int l, int t, int oldl, int oldt) { if (timer == null) { System.Threading.TimerCallback...
View ArticleIs there nay way of cancelling the "back" button event from the NavigationPage?
Topic. Is there any way of cancelling the "back" button event from the NavigationPage, preventing the user from popping the navigation stack ? I already can intercept the hardware back button from the...
View ArticleIs there a Grid function get object at index ?
Hello, I can't see a way to just change a specific object in a Grid. You can add at index or remove at index but i didn't found a way to get object at index or set(replace) an object at index ... is...
View ArticleButton.Text not consistent across platforms, why?
In Android, it is displayed all caps. Can we display text in normal case, as it is set. In iOS, meaningless hiding of text is happening. Three dots replace the center text. And I see 3 dots replacing...
View ArticleCustom Page Transitions with Xamarin.Forms?
Is it possible to override the default Page Transitions for Xamarin.Forms when calling PushAsync or PushModalAsync? For example, I would like to have slide or fade transitions for Android. I have tried...
View ArticleImage not appearing on Android
I have an image in xamarin forms working on iOS but it just doesn't want to load on Android! I have: - In the XAML [Image x:Name="HatsImage" Source="hats.png"/] - Put the image file in the Resources...
View ArticleOut of memory exception
I wrote an app which is ok in iOS. But I got a lot of Out of memory exception , I found that is because of the detail view of model has an image box. I binded the model into the view: model.Image =...
View ArticleIs there a Clipboard plug-in/component for Xamarin.Forms?
I need to implement Copy to Clipboard within my app. Is there a component/plug-in to support this, or am I back to writing more DependencyServices? Thanks, John H.
View ArticleImageSource.FromUri not display on iPhone 6+
I have a list of items, each item has an image like this: var image = new Image { WidthRequest = 44, HeightRequest = 44, }; image.SetBinding(Image.SourceProperty, new Binding("ImageUrl")); Almost all...
View ArticleI am trying to implement the listview with checkboxes But I dont know how to...
Hi , I am implementing a listView with check boxes in click of the checked items it should delete and update the listview .But I dont know to get the checked item that I have given in the listView....
View ArticleHow to use WCF Service in Xamarin.forms for cross platform(Portable)
How to use WCF Service in Xamarin.forms for cross platform(Portable)
View ArticleShow expire Alert
Can i use the project developed in trial version after one month? am getting Alert Message "Trial executable has expired(24 hours limit)"
View ArticleWorking fine on Windows Phone but crashes when running on Android - Why?
Hi all, I am experiencing problems with the android version of my app. Everything works great when running on WP but as you as I run it on Android it crashes. I have an example here:...
View ArticleObtaining height of cell
Hi I have a small challenge. I have a listview with one item (cell) set in its datasource. I wan't to ensure the height of the listview exactly equals the height of the cell. I haven't yet found any...
View ArticleXamarin.Forms Designer
I've modified the DesignerHost-Sample from Microsoft to create a Designer that works in conjunction with Xamarin.Forms, WinForms and GTK# It's not the swiss army knife and requires a large function...
View ArticleHow do I implement Manatee scanner in a PCL project?
I have a iOS/Android PCL project and want to implement Manatee scanner, but their samples don't cover PCL. The sample provided for iOS: scanButton.TouchUpInside += async (sender, e) => { //Make an...
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