internal static async Task <Drawable> GetFormsDrawableAsync(this Context context, ImageSource imageSource, CancellationToken cancellationToken = default(CancellationToken))
{
if (imageSource == null || imageSource.IsEmpty)
{
return(null);
}
// try take a shortcut for files
if (imageSource is FileImageSource fileImageSource)
{
var file = fileImageSource.File;
var id = IdFromTitle(file, DrawableClass);
// try the drawables via id
if (id != 0)
{
var drawable = AndroidAppCompat.GetDrawable(context, id);
if (drawable != null)
{
return(drawable);
}
}
// try a direct file on the file system
if (File.Exists(file))
{
using (var bitmap = await BitmapFactory.DecodeFileAsync(file).ConfigureAwait(false))
{
if (bitmap != null)
{
return(new BitmapDrawable(context.Resources, bitmap));
}
}
}
// try the bitmap resources via id
if (id != 0)
{
using (var bitmap = await BitmapFactory.DecodeResourceAsync(context.Resources, id).ConfigureAwait(false))
{
if (bitmap != null)
{
return(new BitmapDrawable(context.Resources, bitmap));
}
}
}
}
// fall back to the handler
using (var bitmap = await context.GetFormsBitmapAsync(imageSource, cancellationToken).ConfigureAwait(false))
{
if (bitmap != null)
{
return(new BitmapDrawable(context.Resources, bitmap));
}
}
return(null);
}
public static Drawable GetDrawable(this Context context, string name)
{
int id = IdFromTitle(name, DrawableClass);
if (id == 0)
{
Log.Warning("Could not load image named: {0}", name);
return(null);
}
return(AndroidAppCompat.GetDrawable(context, id));
}
public static Drawable GetDrawable(this Resources resource, string name)
{
int id = IdFromTitle(name, DrawableClass, _drawableDefType, resource);
if (id == 0)
{
Log.Warning("Could not load image named: {0}", name);
return(null);
}
return(AndroidAppCompat.GetDrawable(Forms.Context, id));
}