private void callapi() { ContentView content = new ContentView(); StackLayout data = new StackLayout(); Label Baseurl = new Label { Text = GlobalVar.BaseUrl }; data.Children.Add(Baseurl); Entry text = new Entry { Placeholder = "Endpoint", PlaceholderColor = Color.Gray, TextColor = Color.Black }; data.Children.Add(text); text.TextChanged += (s, e) => { Endpoint = text.Text; }; Button Save = new Button { Text = "Call" }; Save.Clicked += (s, e) => { Navigation.PopPopupAsync(); Sample.CallApiSample(this); }; data.Children.Add(Save); content.Content = data; Navigation.PushPopupAsync(new PopUpPage(content, true)); }