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WP7 Dynamic icons in ApplicationBar

Dynamic icons in ApplicationBar

It's possible to have dynamic icons in ApplicationBar with dynamic images loaded from url? I tried this:

xaml:

<phone:PhoneApplicationPage.ApplicationBar>
    <shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
        <shell:ApplicationBarIconButton IconUri="" Text="Button 1"/>
        <shell:ApplicationBarIconButton IconUri="" Text="Button 2"/>
        <shell:ApplicationBar.MenuItems>
            <shell:ApplicationBarMenuItem Text="MenuItem 1"/>
            <shell:ApplicationBarMenuItem Text="MenuItem 2"/>
        </shell:ApplicationBar.MenuItems>
    </shell:ApplicationBar>

cs:

var myIcon = ApplicationBar.Buttons[1] as ApplicationBarIconButton;
myIcon.IconUri = new Uri(iconImageUrl, UriKind.Absolute);

I'm getting error: Path cannot be absolute.

如果uri是相对的,则将第二个参数转换为UriKind.Relative - 看起来像这样:

"/Images/icon.png" 

我认为最好的想法是将您的图像保存在独立存储中并使用UriKind.Relative进行调用。

完整设置appbar IconUri,请参阅:

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