win-universal-app

问题 I'm using the FilePicker for Windows Universal apps and I'm trying to launch the File Picker from MainPage.xaml and then navigate to a different page (LoadPhoto.xaml) to render the selected image. I initially implemented my app so that I'd navigate to LoadPhoto.xaml and then, as part of loading the page, I'd call the File Picker. However that caused issues when resuming the app, so I moved the File Picker call out of the constructor. In the newest implementation, I call the file picker from

问题 Is there any way to make a FlipView loop through items? From the last item, to the first and viceversa. I have seen this solution http://blogs.msdn.com/b/synergist/archive/2013/09/21/windows-8-flipview-looping-sample.aspx It works for W8, OK, but the same code throws under the Windows Universal Platform (Universal App). 回答1: The solution you've mentioned is right, you can refer to this solution to implement your own. But the sample linked in the article doesn't work because there is a minor

问题 I am facing a problem in synchronising the FlipView with the Page Indicator,this is my code: <Grid> <FlipView x:Name="flipView1"> <FlipView.ItemTemplate> <DataTemplate > <Grid Background="Transparent"> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="*" /> </Grid.RowDefinitions> <Button Grid.Column="0" Grid.Row="0"> <Image Source="{Binding Image}"/> </Button> </Grid> </DataTemplate> </FlipView.ItemTemplate> <

问题 This article from Microsoft: Guide to Universal Windows Platform (UWP) apps states that you can convert your classic desktop application (like Win32, Windows Forms, and WPF) or game to a Universal Windows Platform (UWP) app or game . Can the same be achieved for a Silverlight out-of-browser application? 回答1: Unfortunately there is no easy and fully automated way to port your Silverlight app to UWP mostly because the API footprint has changed and updated between the 2 platforms. There are a

问题 I set the icons in my SecondaryCommand of CommandBar but aren't shown. Why? <CommandBar RelativePanel.AlignRightWithPanel="True" RelativePanel.AlignVerticalCenterWithPanel="True" Margin="0"> <CommandBar.SecondaryCommands> <AppBarButton Name="shareButton" Label="Condividi" x:Uid="condividi" Click="shareButton_Click" Icon="ReShare" /> <AppBarButton Name="contactButton" Icon="Contact" x:Uid="contatti" Label="Contatti" Click="contactButton_Click" /> </CommandBar.SecondaryCommands> </CommandBar>

问题 I'm creating an UWP application with a background task. I don't want to run the background when the real application is running or suspended. Is there some way to achieve that? I’ve looked on SystemConditionType but nothing fits what I'm looking for. 回答1: Since background tasks (except special ones) run in a separate process, there is not an elegant way to check if app is running or not since memory is not shared between the app and the background task. There are two ways that I implemented

问题 For Universal Windows apps that are distributed via the Windows Store (i.e. not sideloaded), what should a customer be directed to do if your latest version causes them problems and they would like to essentially "undo" the update? 回答1: Once the app is updated to the latest version the customer can't take any action to roll back. If it is actually a problem with the app, you'll have to fix it as quickly as possible*, and if it's just a fluke your only option is to do your best to help them

问题 I have a Windows 8.1 application. I have a requirement of selecting different templates based on a certain value. For this purpose I'm using ContentPresenter in the xaml with a Static Resource TemplateSelector. Here's my datatemplates and templateselector in xaml resources <DataTemplate x:Key="template1"> <TextBox Text="Temp 1" /> </DataTemplate> <DataTemplate x:Key="template2"> <TextBox Text="Temp 2" /> </DataTemplate> <DataTemplate x:Key="template3"> <TextBox Text="Temp 3" /> </DataTemplate

问题 Is there a way to use a MediaElement Control, to stream e.g. a video or audio file from a remote (web)server, which needs authentication for accessing? To access this server, i am using Windows.Web.HttpClient, but i dont know how to easily access the source with a MediaElement. Best regards 来源： https://stackoverflow.com/questions/37540437/uwp-mediaelement-source-from-http-with-authentication

问题 I have a class library (Imp.Dash.Cook) referenced by my main UWP app (Imp.Dash). In a page in said class library, I have the following XAML: <TextBlock Text="Banana" FontFamily="/Imp.Dash;component/Fonts/Portmanteau Regular.ttf#Portmanteau"/> <TextBlock Text="Banana" FontFamily="/Imp.Dash.Cook;component/Resources/Portmanteau Regular.ttf#Portmanteau"/> <TextBlock Text="Banana" FontFamily="Resources/Portmanteau Regular.ttf#Portmanteau"/><!-- Works in Designer--> <TextBlock Text="Banana"