I have a weird issue with my UWP version of the xamarin forms project. The clicking is not working as expected. Sometimes no response when clicking items (button, image), and sometimes top items are opening when clicking an item.
Please watch this video for getting a clear idea. In this video, I am clicking the next button(Quiz page) several times, but no response. On the game page, the top item pages are opening when clicking an item. In android and ios, everything is working fine.
Version Details:
Xamarin Forms: 4.7.0.968
UWP target version: Windows 10, version 1903(10.0;Build 18362)
UWP Min version: Windows 10, Fall Creators Update(10.0; Build 16299)
Please help me to find the issue behind this. Thanks in advance.
Update
Button Code
<Button
Text="NEXT"
TextColor="White"
HorizontalOptions="EndAndExpand"
BackgroundColor="#f5c74c"
Clicked="NextButtonClicked"
WidthRequest="150"
HeightRequest="40"
FontSize="18"
BorderRadius="20"/>
public void NextButtonClicked(object sender, EventArgs args)
{
//action
}
I have solved this issue by updating the xamarin forms version to 4.8.0.1269.
Related
I have a Xamarin Forms Shell app where I have implemented the Shell SearchHandler. The cancel button shows a book image.
This only occurs on iOS - on Android, there is no cancel button.
My xaml looks like this:
<Shell.SearchHandler>
<controls:RouteSearchHandler
x:Name="RouteSearch"
BackgroundColor="White"
ClearPlaceholderCommand="{Binding ClearSearch}"
ClearPlaceholderIcon="{StaticResource Cancel}"
DisplayMemberName="Street1"
SearchBoxVisibility="{Binding TopSearchVisibility, Converter={StaticResource visibleConvert}}"
ShowsResults="True" />
</Shell.SearchHandler>
How do I change the cancel icon from a book to another fonticon or image?
It seems a potential issue , the team set a default(book) icon on Clear button.
Workaround
You can prepare a small/transparent image and place it in Resources folder in iOS project , and set ClearPlaceholderIcon with it, then the problem should be solved .
And Feel free to file the feature request on github :https://github.com/xamarin/Xamarin.Forms/issues.
I create new Uno Cross-Platform App 2.2 from template.
When I open Shared->MainPage.xaml in doesn't open designer in code view there is a underlined error The type 'page' does not support direct content
<Page
x:Class="App6.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:App6"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<TextBlock Text="Hello, world!" Margin="20" FontSize="30" />
</Grid>
</Page>
This is an Intellisense issue which happens when the project selector (the DropDown at the top of the XAML editor) is not on the UWP project, but rather on iOS, Android or another platform.
If you select the UWP project, close the editor, and re-open it again, the errors will disappear.
As of Visual Studio 2019 16.5 the issue is still present, but is likely to be addressed in a future version.
At the beginning I can use designer to edit MainPage.xaml in Shared folder, after one moment (there was an error that crashed my VS) not any more...
So solution is to move MainPage.xml to UWP project, edit there, and than move it back.
That's work for now.
Maybe it would work with linked file.
I used Blend for Visual Studio to open and edit the file. The next time I opened the project with VS the problem was fixed.
This is just as the title suggests. I've updated my Xamarin Forms project to a 1.6 NetStandard project and now the tapped event on my SfListView isn't working (It just doesn't fire at all).
Does anyone has any suggestions of what could be wrong or have faced anything like this?
EDIT
this is xaml code for SfListView:
<StackLayout HeightRequest="15" Grid.Row="0" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<xForms:SfListView Orientation="Horizontal" ItemSize="128" ItemsSource="{Binding Categories}" SelectionBackgroundColor="Transparent" IsScrollBarVisible="False">
<xForms:SfListView.ItemTemplate>
<DataTemplate>
<cells:CategoryCell />
</DataTemplate>
</xForms:SfListView.ItemTemplate>
<xForms:SfListView.Behaviors>
<behaviors:SfSelectedItemBehavior Command="{Binding FilterCommand}" />
</xForms:SfListView.Behaviors>
</xForms:SfListView>
</StackLayout>
this structure was working before the update. I use a behavior for item selection.
We have checked with the reported query “SfListView ItemTapped event does not trigger after updating the NetStandard Library” from our side. Unfortunately the reported issue does not occur at our end and the ItemTapped event is fired as expected.
For your reference, we have attached the working sample link below.
Sample link: http://www.syncfusion.com/downloads/support/directtrac/190562/ze/SfListViewSample-670965361
Can you please check in your device whether the issue reproduces in our sample also?
If so, Can you please share the below details?
Whether the reported issue occurs in particular device or all devices? (Can you please share the details of your tested device)
Whether the issue is produced in particular platform?
Whether the issue is produced in particular version of Xamarin.Forms and SfListView? (In our sample, we used XForms (v2.3.4.280) and SfListView(v15.3.0.33))
Also can you please share the share the template in which the SfListView items are loaded?
I'm getting an issue I don't understand. I have a Button with an image defined with the following code :
<Button Image="SearchFilterIcon.png"
Grid.Row="0"
Grid.Column="1"
Clicked="OnButtonFilterClicked" />
This works well on Android. The image is displayed on my button but when I launch the Windows Phone application, I get a XamlParseException which says that : No Property of name Image found.
How is it possible? The Button widget isn't the same on Android and Windows Phone?
If you do the following:-
Button objButton1 = new Button();
objButton1.Image = (FileImageSource)ImageSource.FromFile("testImage1.png");
objStackLayout.Children.Add(objButton1);
this.Content = objStackLayout;
Then it will work (via code-behind).
The Button control always had the Image property, even in Xamarin.Forms v1.2.2x, so this is not a new property introduced and nothing to do with having the latest packages installed.
As a workaround perhaps you should consider giving the XAML Button a x:Name as in:-
<Button x:Name="myButton1"/>
And then assign the image from code-behind:-
myButton1.Image = (FileImageSource)ImageSource.FromFile("testImage1.png");
Update 1
This was a case of very old libraries being used (v1.0.6186). Once the project is reupdated to the latest binaries for v1.2.3x, then this works fine.
The Button.Image is available on WP, just as it is on iOS and Android. You probably don't have the latest nuget (1.2.3) installed for WP, or you have multiple versions installed.
The buttons in XAML for Windows Phone simply do not provide an Image property. Thus, you cannot add an image to the button as the API doesn't support this. What you have to do is to create a control template that contains the text and the image.
Button documentation
Try some like:
<Button Click="OnButtonFilterClicked">
<Button.Background>
<ImageBrush Stretch="Fill" ImageSource="/SearchFilterIcon.png"/>
</Button.Background>
</Button>
instead of "Clicked" and "image" properties.
I'm developing a Windows Phone 8 application. In this, I want to add tilt-effect to all my controls (Button, LongListSelector, etc). Could you please tell me how to add tilt effect in Windows Phone 8 Application controls?
Try putting TiltEffect.IsTiltEnabled="true" in the Longlistselector.
<toolkit:LongListSelector Name="resultList" Grid.Row="1"
DataContext="{StaticResource viewModel}"
ItemTemplate="{StaticResource ResultItemTemplate}"
ItemsSource="{Binding TwitterCollection}"
ListFooter="{Binding}"
TiltEffect.IsTiltEnabled="true"/>
Add this in the constructor of the cs page of your xaml.
TiltEffect.TiltableItems.Add( typeof( LongListSelector ) );
This will work.
Please do a little more research yourself, a simple Google-search got me this:
Control tilt effect for Windows Phone
And from that article, you can go to:
How to use the control tilt effect for Windows Phone