如何在paypal IOS中检查状态已完成/挂起？

我想检查IOS中paypal的状态已完成或挂起：

PayPal Payment Success! : {
    client =     {
        environment = sandbox;
        "paypal_sdk_version" = "2.14.3";
        platform = iOS;
        "product_name" = "PayPal iOS SDK";
    };
    response =     {
        "create_time" = "2016-06-27T03:27:56Z";
        id = "PAY-78792669RK5256516K5YJZTY";
        intent = sale;
        state = approved;
    };
    "response_type" = payment;
}

---

当我检查状态时：状态为已批准（已完成和待定）。请帮助我检查状态何时完成或待定？非常感谢你

要检查paypal付款，您必须验证付款。要验证付款，请遵循此链接：要检查paypal付款，您必须验证付款。要验证付款，请遵循此链接：