Fixed problems with selection of PayPal environment

[patrickbussmann]

After I fixed the other #653 problem I find out that I'm unable to leave the "NoNetwork" mock environment.
So I searched for a solution and I found out that the PayPal scripts are not up to date with the cordova plugin repository.

With this update we are able to use PayPal via ionic-native in production and sandbox environments. So we can work with IPN's and everything and test as we like.

Example pay flow...

import {PayPal, PayPalPayment, PayPalConfiguration} from "ionic-native";

[...]

PayPal.init({
    "PayPalEnvironmentProduction": "YOUR_PRODUCTION_CLIENT_ID",
    "PayPalEnvironmentSandbox": "YOUR_SANDBOX_CLIENT_ID"
}).then(() => {
    /** Environments: PayPalEnvironmentNoNetwork, PayPalEnvironmentSandbox, PayPalEnvironmentProduction */
    PayPal.prepareToRender('PayPalEnvironmentSandbox', new PayPalConfiguration({
        /** Only needed if you get an "Internal Service Error" after PayPal login! */
        //payPalShippingAddressOption: 2 // PayPalShippingAddressOptionPayPal
    })).then(() => {
        let payment = new PayPalPayment('3.33', 'USD', 'Description', 'intent');
        PayPal.renderSinglePaymentUI(payment).then(() => {
            // Successfully paid

            /**
             * Example sandbox response
             *
             * {
             *   "client": {
             *     "environment": "sandbox",
             *     "product_name": "PayPal iOS SDK",
             *     "paypal_sdk_version": "2.16.0",
             *     "platform": "iOS"
             *   },
             *   "response_type": "payment",
             *   "response": {
             *     "id": "PAY-1AB23456CD789012EF34GHIJ",
             *     "state": "approved",
             *     "create_time": "2016-10-03T13:33:33Z",
             *     "intent": "sale"
             *   }
             * }
             */
        }, () => {
            // Error or render dialog closed without being successful
        });
    }, () => {
        // Error in configuration
    });
}, () => {
    // Error in initialization, maybe PayPal isn't supported or something else
});

I had a error with the login to PayPal after switching from the Mock-NoNetwork environment to the sandbox environment. "Internal Service error". After play around a bit with the PayPal Sample iOS App I found out that I must set the optional payPalShippingAddressOption to PayPalShippingAddressOptionPayPal. I added this in the example above so that you can do the same if you have the same issue. 👍

[ihadeed]

thanks @patrickbussmann