linhdh

private static void SendFileToServer(string fileFullPath)
        {
            FileInfo fi = new FileInfo(fileFullPath);
            string fileName = fi.Name;
            byte[] fileContents = File.ReadAllBytes(fi.FullName);
            Uri webService = new Uri(@"http://avalidwebservice.com");
            HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, webService);
            requestMessage.Headers.ExpectContinue = false;

            MultipartFormDataContent multiPartContent = new MultipartFormDataContent("----MyGreatBoundary");

linhdh

public void ShowSubviewAt(CGRect rect, UIView subView, Action didFinishAnimation)
        {
            UIView cover = new UIView();
            cover.Frame = new CGRect(0, 0, AppWindow.Bounds.Width, AppWindow.Bounds.Height);
            //cover.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
            //cover.Opaque = true;
            cover.BackgroundColor = UIColor.Clear;
            cover.AddGestureRecognizer(new UITapGestureRecognizer(() =>
            {

linhdh

class CircularButtonRender : Xamarin.Forms.Platform.Android.ButtonRenderer
{
  private GradientDrawable _NormalState, _PressedState;
 
  protected override void OnElementChanged(ElementChangedEventArgs<Xamarin.Forms.Button> e)
  {
    base.OnElementChanged(e);
 
    if (Control != null)
    {