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  • wp8 入门到精通 Gallery

    <Grid x:Name="LayoutRoot" Background="Transparent">
    <Grid.Resources>
    <Style TargetType="Image">
    <Setter Property="Margin" Value="-12,-36,0,0"/>
    </Style>
    </Grid.Resources>
    <phone:Panorama x:Name="photoFlow1" HorizontalAlignment="Left" VerticalAlignment="Top" Width="530">
    </phone:Panorama>
    </Grid>

    private void AddPanoramaItem(LongMoreViewModel ItemNumber)
    {
    for (int i = 0; i < ItemNumber.Apps.Count; i++)
    {
    PanoramaItem Navitation = new PanoramaItem();
    Image nimage = new Image();
    nimage.RenderTransform = new CompositeTransform();
    nimage.ManipulationDelta += Navitation_ManipulationDelta;
    nimage.DoubleTap += Navitation_DoubleTap;

    AppRecommend mde = ItemNumber.Apps[i] as AppRecommend;
    nimage.Source= new BitmapImage(new Uri(mde.Name, UriKind.Absolute));
    nimage.Stretch = System.Windows.Media.Stretch.Fill;
    Navitation.Content = nimage;
    photoFlow1.Items.Add(Navitation);
    }
    }

    /////////////////////////////////////////////////////////////////////////////////////////////////////////// 

    private void Navitation_ManipulationDelta(object sender, System.Windows.Input.ManipulationDeltaEventArgs e)
    {
    Image grid = sender as Image;
    if (grid == null)
    return;
    bool oldIsPinch = isPinching;
    isPinching = e.PinchManipulation != null;

    if (oldIsPinch == false && isPinching == false)
    {
    this.OnDragDelta(sender, e);
    }
    else if (oldIsPinch == false && isPinching == true)
    {
    this.OnPinchStarted(sender, e);
    }
    else if (oldIsPinch == true && isPinching == true)
    {
    this.OnPinchDelta(sender, e);
    }
    else if (oldIsPinch == true && isPinching == false)
    {
    this.OnPinchCompleted(sender, e);
    }
    }
    private void OnDragDelta(object sender, ManipulationDeltaEventArgs e)
    {
    FrameworkElement framework = sender as FrameworkElement;
    CompositeTransform compositeTransform = framework.RenderTransform as CompositeTransform;
    if (compositeTransform.ScaleX == 1.0 && compositeTransform.ScaleY == 1.0)
    return;
    Point point = TransChanged(compositeTransform).Transform(e.DeltaManipulation.Translation);
    compositeTransform.TranslateX += point.X;
    compositeTransform.TranslateY += point.Y;
    }
    private GeneralTransform TransChanged(CompositeTransform trans)
    {
    CompositeTransform compositeTransform = new CompositeTransform();
    compositeTransform.Rotation = trans.Rotation;
    compositeTransform.ScaleX = trans.ScaleX;
    compositeTransform.ScaleY = trans.ScaleY;
    compositeTransform.CenterX = trans.CenterX;
    compositeTransform.CenterY = trans.CenterY;
    compositeTransform.TranslateX = 0.0;
    compositeTransform.TranslateY = 0.0;
    return (GeneralTransform)compositeTransform;
    }
    private void OnPinchStarted(object sender, ManipulationDeltaEventArgs e)
    {
    this.isPinching = true;
    foreach (PanoramaItem item in photoFlow1.Items)
    {
    PanoramaItem pItem = photoFlow1.SelectedItem as PanoramaItem;
    if (!item.Equals(pItem))
    item.Visibility = Visibility.Collapsed;
    }
    }
    private void OnPinchDelta(object sender, ManipulationDeltaEventArgs e)
    {
    FrameworkElement framework = sender as FrameworkElement;
    CompositeTransform compositeTransform = framework.RenderTransform as CompositeTransform;
    double scaleX = compositeTransform.ScaleX;
    double deltaScale1 = e.PinchManipulation.DeltaScale;
    double scaleY = compositeTransform.ScaleY;
    double deltaScale2 = e.PinchManipulation.DeltaScale;
    double num1 = compositeTransform.ScaleX * deltaScale1;
    double num2 = compositeTransform.ScaleY * deltaScale2;
    if (num2 > (double)this.maxScale || num1 > (double)this.maxScale)
    {
    compositeTransform.ScaleX = (double)this.maxScale;
    compositeTransform.ScaleY = (double)this.maxScale;
    }
    else
    {
    compositeTransform.ScaleX = num1;
    compositeTransform.ScaleY = num2;
    }
    }
    private void OnPinchCompleted(object sender, ManipulationDeltaEventArgs e)
    {
    this.isPinching = false;
    }
    private void Navitation_DoubleTap(object sender, System.Windows.Input.GestureEventArgs e)
    {
    FrameworkElement framework = sender as FrameworkElement;
    CompositeTransform compositeTransform = framework.RenderTransform as CompositeTransform;
    compositeTransform.ScaleX = compositeTransform.ScaleY = 1;
    compositeTransform.CenterX = framework.Width / 2;
    compositeTransform.CenterY = framework.Height / 2;

    foreach (PanoramaItem item in photoFlow1.Items)
    {
    PanoramaItem pItem = photoFlow1.SelectedItem as PanoramaItem;
    if (!item.Equals(pItem))
    item.Visibility = Visibility.Visible;
    }
    }

    、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、、

    <!--<phone:Panorama x:Name="photoFlow1" ItemsSource="{Binding Apps}" Margin="-12,0,-48,0">
    <phone:Panorama.HeaderTemplate>
    <DataTemplate>
    <ContentControl Content="" FontSize="1"/>
    </DataTemplate>
    </phone:Panorama.HeaderTemplate>
    <phone:Panorama.ItemTemplate>
    <DataTemplate>
    <Image Stretch="None" x:Name="Navitation" local:CCImage.Source="{Binding Name}"
    ManipulationDelta="Navitation_ManipulationDelta" DoubleTap="Navitation_DoubleTap">
    <Image.RenderTransform>
    <CompositeTransform/>
    </Image.RenderTransform>
    </Image>
    </DataTemplate>
    </phone:Panorama.ItemTemplate>
    </phone:Panorama>-->

    public class LongMoreViewModel : BaseViewModel
    {
    public LongMoreViewModel()
    {
    Apps = new ObservableCollection<object>();
    Apps.Add(new AppRecommend() { Name = "http://cdn.marketplaceimages.windowsphone.com/v8/images/9418d78e-41d3-4010-b752-08a22f56a1bd?imageType=ws_screenshot_large&rotation=0" });
    Apps.Add(new AppRecommend() { Name = "http://cdn.marketplaceimages.windowsphone.com/v8/images/be2dac62-de4a-44bb-87bf-1f2b41d56df1?imageType=ws_screenshot_large&rotation=0" });
    Apps.Add(new AppRecommend() { Name = "http://cdn.marketplaceimages.windowsphone.com/v8/images/e0117eea-1cff-4c4b-835f-d00ebf4abe26?imageType=ws_screenshot_large&rotation=0" });
    Apps.Add(new AppRecommend() { Name = "http://cdn.marketplaceimages.windowsphone.com/v8/images/cb572d91-f0c1-4bdc-92b6-0b510801cf33?imageType=ws_screenshot_large&rotation=0" });
    Apps.Add(new AppRecommend() { Name = "http://cdn.marketplaceimages.windowsphone.com/v8/images/a6fa5c5d-f7a1-4c21-a5f8-0040383263ee?imageType=ws_screenshot_large&rotation=0" });
    Apps.Add(new AppRecommend() { Name = "http://cdn.marketplaceimages.windowsphone.com/v8/images/ac5a04d3-9a4a-4d40-9e7b-fa2db58b4e05?imageType=ws_screenshot_large&rotation=0" });
    Apps.Add(new AppRecommend() { Name = "http://cdn.marketplaceimages.windowsphone.com/v8/images/dcedb633-a6f7-4113-9211-598e30e38cca?imageType=ws_screenshot_large&rotation=0" });
    Apps.Add(new AppRecommend() { Name = "http://cdn.marketplaceimages.windowsphone.com/v8/images/aa048089-c5de-426f-b313-462a2996c0b9?imageType=ws_screenshot_large&rotation=0" });
    }
    public IList<object> Apps { get; set; }
    private BitmapImage imageSource;
    /// <summary>
    /// 获取或设置当前分享天气的图片.
    /// </summary>
    public BitmapImage ImageSource
    {
    get
    {
    return imageSource;
    }
    set
    {
    if (value != imageSource)
    {
    imageSource = value;
    NotifyPropertyChanged("ImageSource");
    }
    }
    }
    }
    public class AppRecommend
    {
    public string Name { get; set; }

    public override bool Equals(object obj)
    {
    if ((obj != null) && (obj.GetType() == typeof(PanoramaItem)))
    {
    var thePanoItem = (PanoramaItem)obj;

    return base.Equals(thePanoItem.Header);
    }
    else
    {
    return base.Equals(obj);
    }
    }

    public override int GetHashCode()
    {
    return base.GetHashCode();
    }
    }

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  • 原文地址:https://www.cnblogs.com/luquanmingren/p/4046455.html
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