Possible Duplicate:
Has anyone implemented the PayPal API through a native iPhone app?
May be I am repeating this question but I do not have any idea about this.I want to integrate PayPal into my iPhone native app. Please help me regarding :-
How do I integrate PayPal in my iPhone App?
How to go from a scratch ?
Are there some good tutorials available on internet ? What are they ?
Regards!!
You could do it using Mobile Express Checkout. All the info, here. Its very easy to integrate within your app. You will need a server side app though to make some of the Paypal calls, as it would not be safe to make them from the phone.
来源：https://stackoverflow.com/questions/7480731/paypal-integration-in-an-iphone-app