private static void SetOverlay(BindableView view, CompositeDisposable disposables, Drawable overlay)
{
#if __ANDROID_18__
if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.Kitkat)
{
ExecuteWithNoRelayout(view, v => v.Overlay.Add(overlay));
disposables.Add(() => ExecuteWithNoRelayout(view, v => v.Overlay.Remove(overlay)));
}
else
#endif
{
// Set overlay is not supported by this platform, set the background instead
// and merge with the existing background.
// It'll break some scenarios, like having borders on top of the content.
var list = new List <Drawable>();
var currentBackground = view.Background;
if (currentBackground != null)
{
list.Add(currentBackground);
}
list.Add(overlay);
view.SetBackgroundDrawable(new LayerDrawable(list.ToArray()));
disposables.Add(() => view.SetBackgroundDrawable(null));
}
}
private void SetBackground(BindableView view, Drawable drawable)
{
#pragma warning disable 618 // Using older method for compatibility with API 15
view.SetBackgroundDrawable(drawable);
#pragma warning restore 618
}
