Question

我有这个函数返回Uri。

public static Uri GetAppropriate(string imageName, string basePath = "/Assets/") {
        switch (DisplayInformationEx.Default.FriendlyResolution) {
            case FriendlyResolution.FullHD:
                return new Uri("ms-appx://" + basePath + imageName + ".screen-1080p.jpg", UriKind.Absolute);
            case FriendlyResolution.HD:
                return new Uri("ms-appx://" + basePath + imageName + ".screen-720p.jpg", UriKind.Absolute);
            case FriendlyResolution.WXGA:
                return new Uri("ms-appx://" + basePath + imageName + ".screen-wxga.jpg", UriKind.Absolute);
            case FriendlyResolution.WVGA:
                return new Uri("ms-appx://" + basePath + imageName + ".screen-wvga.jpg", UriKind.Absolute);
            default:
                throw new InvalidOperationException("Unknown resolution type");
        }
    }

我的图像具有相对于应用程序根目录的以下路径：//Assets/SquareBackground.screen-720p.jpg

当我拨打以下电话时，我看不到图像：

private ImageSource backgroundImage;
    public ImageSource BackgroundImage {
        get { return backgroundImage; }
        set {
            backgroundImage = value;
            NotifyOfPropertyChange(()=>BackgroundImage);
        }
    }

protected override void OnViewAttached(object view, object context) {
        BackgroundImage = new BitmapImage(ImageChooser.GetAppropriate("SquareBackground")); 
    }

我做错了什么？

Answer 1

new Uri("/Assets/SquareBackground.screen-720p.jpg", UriKind.Relative);是另一种让您使用相对于项目根目录的URI的方法

绝对URI加载图像的问题

1 个答案: