Customization

iOS Unified Checkout Customization

You can customize the iOS Unified Checkout to support your checkout context and brand guidelines by changing fonts, colours, shapes and layouts.

Create a PaymentSheet.Configuration object with an appearance object in order to be able to match the design of your app.

Fonts

Set typography.fontResId to your custom font’s resource ID to customize your font. Set a typography.sizeScaleFactor multiplier to increase or decrease the font size

var configuration = PaymentSheet.Configuration()
configuration.appearance?.font?.base? = UIFont(name: "Helvetica", size: UIFont.systemFontSize)!
configuration.allowsDelayedPaymentMethods = true
configuration.defaultBillingDetails =
    ["address":
      [ "city": "San Fransico",
        "country": "US",
        "line1": "1467",
        "line2": "Harrison Street",
        "postalCode": "94122",
        "state": "California"
      ],
      "email": "[e-mail]",
      "name": "John",
      "phone": "1234567890"
    ]

Colors

Modify the colour categories in PaymentSheet.Colors to customize the colours on the mobile payment sheet as follows:

Colour Category	Usage
appBarIcon	Color used for icons in the payment page ex: close (x) button
component	Background colour of inputs, tabs and other components
componentBorder	Border color for inputs, tabs and other components
componentDivider	Color for divider lines used inside inputs, tabs and other components
error	Color for error messages to the user on the payment page
onComponent	Color of text and other elements inside components
onSurface	Color for items appearing on the surface of the payment page, Ex: text prompts
placeholderText	Color for input fields placeholder text
primary	The primary color to be used across the payment page
subtitle	Color of secondary text like prompts for input fields
surface	Color of the payment page

Shapes

Modify the corner radius and border width used across the payment page using appearance.shapes.

Shape Category	Usage
borderStrokeWidthDp	Width of the border used to across input fields, tabs and other components of the payment page
cornerRadiusDp	Corner radius of the input fields, tabs and other components

Now you can test the payments on your app and go-live!