private static UIImage GetUIImageFromImageSource(FontImageSource source)
{
var handler = new FontImageSourceHandler();
// LoadImageAsync is not async, it just returns Task.FromResult
return(handler.LoadImageAsync(source).Result);
}
public OverviewMapRenderer(Context context) : base(context)
{
Task.Run(async() =>
{
var bikeSource = new FontImageSource
{
FontFamily = Fonts.SolidIcons,
Glyph = FontAwesomeIcons.Bicycle,
Color = Color.Black
};
var stationSource = new FontImageSource
{
FontFamily = Fonts.SolidIcons,
Glyph = FontAwesomeIcons.Home,
Color = Color.Black
};
var loader = new FontImageSourceHandler();
_bikeBitmapDescriptor = BitmapDescriptorFactory.FromBitmap(await loader.LoadImageAsync(bikeSource, context));
_stationBitmapDescriptor = BitmapDescriptorFactory.FromBitmap(await loader.LoadImageAsync(stationSource, context));
});
}
private static Task <UIImage> LoadPlaceholderAsync()
{
switch (FormsHandler.PlaceholderImageSource)
{
case StreamImageSource streamImageSource:
FormsHandler.Warn($"loading placeholder from resource");
return(DefaultStreamImageSourceHandler.LoadImageAsync(streamImageSource));
;
case FontImageSource fontImageSource:
FormsHandler.Warn($"loading placeholder from Font");
return(DefaultFontImageSourcehandler.LoadImageAsync(fontImageSource));
default:
FormsHandler.Warn($"no valid placeholder found");
return(null);
}
}