IOS PayPal：如何允许用户在 PayPal 的支付页面上输入任意金额

Question

我使用以下代码将贝宝集成到我的应用程序中：

- (IBAction)MakePayment:(id)sender
{
    PayPalItem * item1 = [PayPalItem itemWithName:@"Item" withQuantity:1 withPrice:[NSDecimalNumber decimalNumberWithString:@"0.04"] withCurrency:@"USD" withSku:@"SKU-Item"];

    NSArray * items = @[item1];
    NSDecimalNumber * subtotal = [PayPalItem totalPriceForItems:items];

    NSDecimalNumber * shipping = [[NSDecimalNumber alloc]initWithString:@"0.0"];
    NSDecimalNumber * tax = [[NSDecimalNumber alloc]initWithString:@"0.0"];

    PayPalPaymentDetails * paymentDetails = [PayPalPaymentDetails paymentDetailsWithSubtotal:subtotal withShipping:shipping withTax:tax];

    NSDecimalNumber * total = [[subtotal decimalNumberByAdding:shipping]decimalNumberByAdding:tax];

    PayPalPayment * payment = [[PayPalPayment alloc]init];
    payment.amount = total;

    payment.currencyCode = @"USD";
    payment .shortDescription = @"My Payment";

    payment.items = items;
    payment.paymentDetails = paymentDetails;

    if(!payment.processable)
    {

    }

    PayPalPaymentViewController * paymentViewController = [[PayPalPaymentViewController alloc]initWithPayment:payment configuration:self.payPalconfig delegate:self];
    [self presentViewController:paymentViewController animated:YES completion:nil];

}

在这段代码中，我通过代码输入了金额。但根据要求，用户必须在付款页面上手动输入任何金额。请给我任何代码，我可以通过显示金额字段允许用户在付款页面上手动输入金额。

Answer 1

如果您想让您的用户输入或 select 价格，请在出现 paypal 控制器之前要求用户使用文本字段手动输入。

您无法在 paypal 控制器中输入价格。然后你可以在paypal controller中传递价格值。

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