Pass data using PopAsync

Achraf_benalaya

Hi ,

I'm Have to pass data after scan from camera using PopAsync .

    public async void Handle_OnScanResult(Result result)
        {

            Device.BeginInvokeOnMainThread(async () =>

            {
                                 //here I display the result as alert , but I want to PopAsync  to page1 which contain an entry for  result
                await DisplayAlert("Scanned result", result.Text, "OK");
                           });

                   }

I want to PopAsync to page1 which contain an entry for result .How can I do That ?

AlessandroCaliaro

use MessagingCenter

Achraf_benalaya

@AlessandroCaliaro , I couldn't understand how this work ?

scan page : MessagingCenter.Send<Resutpage, string>(??????, result.Text, result.Text);

result page : MessagingCenter.Subscribe<string, string>("MyApp", "NotifyMsg", (sender, arg) => {
TheVoucher.Text = arg;
});

AlessandroCaliaro

you can try with

scan page : MessagingCenter.Send<App, string>((App)Xamarin.Forms.Application.Current, "NotifyMsg", result.Text);
result page : MessagingCenter.Subscribe<App, string>((App)Xamarin.Forms.Application.Current, "NotifyMsg", (sender, arg) => {
TheVoucher.Text = arg;
});