private async void Button_Clicked_1(object sender, EventArgs e)
{
getBalance gettokenbalance = new getBalance();
var asd = await gettokenbalance.GetBalance(walled_adress.Text);
if (asd == null)
{
await DisplayAlert("Get Balance Failed", "Get balance function is failed please try again or check your wallet adress", "OK");
}
else
{
await DisplayAlert("Get Balance Success", "Get balanc is succes please check your balance again.", "OK");
wallet_amount.Text = asd + " PostanteToken";
}
}
