protected override void OnAppearing()
{
base.OnAppearing();
_viewModel.CopyToClipboardAsync(_viewModel.Payment.Address)
.ContinueWith(_ => _msgDisplayer.ShowMessageAsync("Copiado endereço"),
TaskContinuationOptions.OnlyOnRanToCompletion);
_viewModel.StartBackgroundJob();
}
private async void Save_Clicked(object sender, EventArgs e)
{
await _viewModel.SaveSettingsAsync();
// go back in the navigation stack
await _navigationService.PopStackAsync();
await _messageDisplayer.ShowMessageAsync("Configurações salvas!");
}
public PaymentFinalizationPage(
PaymentFinalizationPageViewModel viewModel
, INavigationService navigationService
, IMessageDisplayer msgDisplayer
)
{
InitializeComponent();
_navigationService = navigationService;
_msgDisplayer = msgDisplayer;
BindingContext = _viewModel = viewModel;
MessagingCenter.Subscribe <PaymentFinalizationPageViewModel, decimal>(
_viewModel
, MessengerKeys.PaymentFullyReceived
, (_, value) =>
{
Device.BeginInvokeOnMainThread(async() =>
{
_viewModel.HandleCompletePayment(value);
await _msgDisplayer.ShowMessageAsync($"Pagamento efetuado!\nPago: {value:N8}");
await ExitPageAsync();
});
}
);
MessagingCenter.Subscribe <PaymentFinalizationPageViewModel, (decimal totalValue, decimal txValue)>(
_viewModel
, MessengerKeys.PaymentPartiallyReceived
, (_, partialPayment) =>
{
Device.BeginInvokeOnMainThread(async() =>
{
_viewModel.HandlePartialValuePayment(partialPayment);
await _msgDisplayer.ShowMessageAsync(
$"Valor recebido: {partialPayment.totalValue:N8}\n" +
$"Aguardando o restante ({_viewModel.MissingAmount:N8})..."
);
});
}
);
}
private async void Receive_Clicked(object sender, EventArgs e)
{
Debug.WriteLine($"Receive Clicked: {_viewModel.TransactionValue}", "UI");
Payment payment = null;
try
{
payment = await _viewModel.GenerateNewPayment();
}
catch (Exception ex)
{
Debug.WriteLine(ex);
await _msgDisplayer.ShowMessageAsync("Aconteceu um erro.");
}
if (payment != null)
{
await _navigationService.NavigateToModalAsync <PaymentFinalizationPageViewModel>(payment);
}
}