Windows 8 Store Apps(33)-関連起動を再想像する:外部プログラムを使用してファイルまたはuriを開き、指定されたファイルタイプまたはプロトコルを関連付ける.

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Windows 8 Store Apps(33)-関連起動を再想像する:外部プログラムを使用してファイルまたはuriを開き、指定されたファイルタイプまたはプロトコルを関連付ける.
作者:webabcd紹介Windows 8 Store Appsの再想像関連開始

外部プログラムを使ってファイルを開く

外部プログラムを使ってUri

を開きます.

関連指定されたファイルタイプ(つまり、このプログラムで指定されたタイプのファイルを開く)

関連指定されたプロトコル(すなわち、本プログラムで指定されたプロトコルを処理する)

例1、外部プログラムを使ってファイルを開く方法を示すAsociation Launching/LaunchFile.xaml

<Page
    x:Class="XamlDemo.AssociationLaunching.LaunchFile"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Launcher"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <StackPanel Margin="120 0 0 0">
            <TextBlock Name="lblMsg" Margin="0 0 0 10" />

            <RadioButton Content="            " Name="radDefault" GroupName="LaunchType" IsChecked="True" />
            <RadioButton Content="            ，        " Name="radWarning" GroupName="LaunchType" />
            <RadioButton Content="             " Name="radOpenWith" GroupName="LaunchType" />
            
            <Button Content="     .png     " Name="btnLaunchFile" Click="btnLaunchFile_Click_1" Margin="0 10 0 0" />
        </StackPanel>
    </Grid>
</Page>

Asociation Launching/LaunchFile.xaml.cs

/*
 *                 
 */

using System;
using Windows.Foundation;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace XamlDemo.AssociationLaunching
{
    public sealed partial class LaunchFile : Page
    {
        public LaunchFile()
        {
            this.InitializeComponent();
        }

        private async void btnLaunchFile_Click_1(object sender, RoutedEventArgs e)
        {
            /*
             * Launcher -                 
             *     LaunchFileAsync(IStorageFile file) -        
             *     LaunchFileAsync(IStorageFile file, LauncherOptions options) -        
             * 
             * LauncherOptions -               
             *     TreatAsUntrusted -                 ，        
             *     DisplayApplicationPicker -     “    ”   
             *     UI.InvocationPoint -   “    ”        
             *     
             *                  ，            
             * 1、   LauncherOptions.FallbackUri:               
             * 2、   PreferredApplicationDisplayName   PreferredApplicationPackageFamilyName
             *    PreferredApplicationDisplayName -       “     ”              
             *    PreferredApplicationPackageFamilyName -     “     ” ，         PackageFamilyName
             */


            //          
            var file = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFileAsync(@"Assets\Logo.png");

            //                 
            var options = new Windows.System.LauncherOptions();
            if (radWarning.IsChecked.Value)
            {
                options.TreatAsUntrusted = true;
            }
            if (radOpenWith.IsChecked.Value)
            {
                Point openWithPosition = GetOpenWithPosition(btnLaunchFile);

                options.DisplayApplicationPicker = true;
                options.UI.InvocationPoint = openWithPosition;
            }

            //              
            bool success = await Windows.System.Launcher.LaunchFileAsync(file, options);
            if (success)
            {
                lblMsg.Text = "    ";
            }
            else
            {
                lblMsg.Text = "    ";
            }
        }

        //   “    ”        ，    Button         
        private Windows.Foundation.Point GetOpenWithPosition(FrameworkElement element)
        {
            Windows.UI.Xaml.Media.GeneralTransform buttonTransform = element.TransformToVisual(null);

            Point desiredLocation = buttonTransform.TransformPoint(new Point());
            desiredLocation.Y = desiredLocation.Y + element.ActualHeight;

            return desiredLocation;
        }
    }
}

2、外部プログラムを使って指定のUriAsociation Launching/LaunchUri.xamlをどうやって開きますか?

<Page
    x:Class="XamlDemo.AssociationLaunching.LaunchUri"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Launcher"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <StackPanel Margin="120 0 0 0">
            <TextBlock Name="lblMsg" Margin="0 0 0 10" />

            <RadioButton Content="              Uri" Name="radDefault" GroupName="LaunchType" IsChecked="True" />
            <RadioButton Content="              Uri，        " Name="radWarning" GroupName="LaunchType" />
            <RadioButton Content="               Uri" Name="radOpenWith" GroupName="LaunchType" />
            
            <Button Content="     uri" Name="btnLaunchUri" Click="btnLaunchUri_Click_1" Margin="0 10 0 0" />
        </StackPanel>
    </Grid>
</Page>

Asociation Launching/LaunchUri.xaml.cs

/*
 *                 Uri
 */

using System;
using Windows.Foundation;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace XamlDemo.AssociationLaunching
{
    public sealed partial class LaunchUri : Page
    {
        public LaunchUri()
        {
            this.InitializeComponent();
        }

        private async void btnLaunchUri_Click_1(object sender, RoutedEventArgs e)
        {
            /*
             * Launcher -         Uri        
             *     LaunchUriAsync(Uri uri) -       Uri
             *     LaunchUriAsync(Uri uri, LauncherOptions options) -       Uri
             * 
             * LauncherOptions -               
             *     TreatAsUntrusted -                 ，        
             *     DisplayApplicationPicker -     “    ”   
             *     UI.InvocationPoint -   “    ”        
             *     
             *      Uri            ，            
             * 1、   LauncherOptions.FallbackUri:               
             * 2、   PreferredApplicationDisplayName   PreferredApplicationPackageFamilyName
             *    PreferredApplicationDisplayName -       “     ”              
             *    PreferredApplicationPackageFamilyName -     “     ” ，         PackageFamilyName
             */

            //         Uri
            var uri = new Uri("http://webabcd.cnblogs.com");

            //      Uri           
            var options = new Windows.System.LauncherOptions();
            if (radWarning.IsChecked.Value)
            {
                options.TreatAsUntrusted = true;
            }
            if (radOpenWith.IsChecked.Value)
            {
                Point openWithPosition = GetOpenWithPosition(btnLaunchUri);

                options.DisplayApplicationPicker = true;
                options.UI.InvocationPoint = openWithPosition;
            }

            //             Uri
            bool success = await Windows.System.Launcher.LaunchUriAsync(uri, options);
            if (success)
            {
                lblMsg.Text = "    ";
            }
            else
            {
                lblMsg.Text = "    ";
            }
        }

        //   “    ”        ，    Button         
        private Windows.Foundation.Point GetOpenWithPosition(FrameworkElement element)
        {
            Windows.UI.Xaml.Media.GeneralTransform buttonTransform = element.TransformToVisual(null);

            Point desiredLocation = buttonTransform.TransformPoint(new Point());
            desiredLocation.Y = desiredLocation.Y + element.ActualHeight;

            return desiredLocation;
        }
    }
}

3、指定されたファイルタイプをどのように関連付けるか(つまり、このプログラムで指定されたタイプのファイルを開く)Asociation Launching/FileType Asociation.xamlをデモします.

<Page
    x:Class="XamlDemo.AssociationLaunching.FileTypeAssociation"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Launch"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <TextBlock Name="lblMsg" FontSize="24" TextWrapping="Wrap" Margin="120 0 0 0">
            <Run>        .webabcd      </Run>
            <LineBreak />
            <Run>    ：           ，       ，         .webabcd，      ，           </Run>
        </TextBlock>
    </Grid>
</Page>

Asociation Launching/FileType Asociation.xaml.cs

/*
 *              （              ）
 * 
 * 1、  Package.appxmanifest      “      ”  ，      
 * 2、  App.xaml.cs   override void OnFileActivated(FileActivatedEventArgs args)，          
 * 
 * FileActivatedEventArgs -                   
 *     Files -        
 *     PreviousExecutionState, Kind, SplashScreen -      app                  ，     
 */

using System;
using Windows.ApplicationModel.Activation;
using Windows.Storage;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;

namespace XamlDemo.AssociationLaunching
{
    public sealed partial class FileTypeAssociation : Page
    {
        private FileActivatedEventArgs _fileActivated;

        public FileTypeAssociation()
        {
            this.InitializeComponent();

            this.Loaded += FileTypeAssociation_Loaded;
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            //    FileActivatedEventArgs   
            _fileActivated = e.Parameter as FileActivatedEventArgs;
        }

        async void FileTypeAssociation_Loaded(object sender, RoutedEventArgs e)
        {
            //           ，   
            if (_fileActivated != null)
            {
                var isf = _fileActivated.Files[0] as IStorageFile;
                lblMsg.Text = await FileIO.ReadTextAsync(isf);
            }
        }
    }
}

App.xaml.cs

//                    
protected override void OnFileActivated(FileActivatedEventArgs args)
{
    Frame rootFrame = new Frame();
    rootFrame.Navigate(typeof(MainPage), args);
    Window.Current.Content = rootFrame;

    Window.Current.Activate();
}

4、指定されたプロトコルにどのように関連するかをデモする(すなわち、本プログラムで指定されたプロトコルを処理する)Asociation Launching/Protocol Asociation.xaml

<Page
    x:Class="XamlDemo.AssociationLaunching.ProtocolAssociation"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.AssociationLaunching"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <StackPanel Margin="120 0 0 0">
            <TextBlock Name="lblMsg" FontSize="24">
                <Run>        webabcd://   </Run>
            </TextBlock>

            <Button Name="btnProtocol" Content="        webabcd://data" Click="btnProtocol_Click_1" Margin="0 10 0 0" />
        </StackPanel>
    </Grid>
</Page>

Asociation Launching/Protocol Asociation.xaml.cs

/*
 *            （            ）
 * 
 * 1、  Package.appxmanifest      “  ”  ，      
 * 2、  App.xaml.cs   override void OnActivated(IActivatedEventArgs args)，          
 * 
 * ProtocolActivatedEventArgs -                 
 *     Uri -     uri
 *     PreviousExecutionState, Kind, SplashScreen -      app                  ，     
 */

using System;
using Windows.ApplicationModel.Activation;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;

namespace XamlDemo.AssociationLaunching
{
    public sealed partial class ProtocolAssociation : Page
    {
        private ProtocolActivatedEventArgs _protocolActivated;

        public ProtocolAssociation()
        {
            this.InitializeComponent();

            this.Loaded += ProtocolAssociation_Loaded;
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            //    ProtocolActivatedEventArgs   
            _protocolActivated = e.Parameter as ProtocolActivatedEventArgs;
        }

        void ProtocolAssociation_Loaded(object sender, RoutedEventArgs e)
        {
            //          
            if (_protocolActivated != null)
                lblMsg.Text = _protocolActivated.Uri.AbsoluteUri;
        }

        private async void btnProtocol_Click_1(object sender, RoutedEventArgs e)
        {
            //         webabcd://data
            var uri = new Uri("webabcd://data");
            await Windows.System.Launcher.LaunchUriAsync(uri);

            //    IE    ，       webabcd://data，             
        }
    }
}

App.xaml.cs

protected override void OnActivated(IActivatedEventArgs args)
{
    //            
    if (args.Kind == ActivationKind.Protocol)
    {
        ProtocolActivatedEventArgs protocolArgs = args as ProtocolActivatedEventArgs;

        Frame rootFrame = new Frame();
        rootFrame.Navigate(typeof(MainPage), protocolArgs);
        Window.Current.Content = rootFrame;

        Window.Current.Activate();
    }
}

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KotlinシリーズのLamband表現(2)

PHPEX CELは小記を使用します.