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ENV_LIVE

ENV_SANDBOX

ENV_NONE

del: Your delegate function that receives device tokens (required).

getPayButtonWithTarget method

If your payment implementation is in a mobile application, you can get a button from the MEC library. The getPayButtonWithTarget method returns a UIButton for use on your mobile application screen, and it provides a target: parameter that allows you to specify which UIViewController receives the callbacks. Table 5-3 outlines the parameters for getPayButtonWithTarget.

Table 5-3. getPayButtonWithTarget method

Parameter Description

target: The UIViewController that is the delegate for callbacks (required).

action: Your method that responds to the PayPal button click (required).

buttonType: The size and appearance of the PayPal button (required). Allowable values are:

BUTTON_152x33

BUTTON_194x37

BUTTON_278x43

BUTTON_294x43

getInstance method

You can use the getInstance method to specify and access the library’s runtime properties. This can be used for debugging purposes as well as to verify that your payment is working properly. Table 5-4 outlines the parameters for getInstance.

Table 5-4. getInstance method

Parameter Description

lang The locale code for the label of the PayPal button. By default, the library uses the locale of the device.

errorMessage If the library fails to acquire a valid device token, the error message provides more details about the failure.

paymentsEnabled If your attempt to fetch a device token succeeded, the value of this property is TRUE .

MEC Localization Support

MEC supports numerous locales, which can be specified after you initialize the library. By default it will determine the local of the user’s device, and if it does not support the device’s locale, it will fall back on en_US. You specify the locale with the lang property of the PayPal object. This should be set after initializing the library and before you make the call to getPayButtonWithTarget() to get a localized button. Table 5-5 lists the supported localizations.

Table 5-5. Supported localizations

Country or region Supported locale codes

Argentina es_AR

Brazil pt_BR

Australia en_AU

Belgium en_BE, nl_BR, fr_BE

Canada en_CA, fr_CA

France fr_FR, en_FR

Germany de_DE, en_DE

Hong Kong zh_HK, en_HK

India en_IN

Italy it_IT

Japan ja_JP, en_JP

Mexico es_MX, en_MX

Netherlands nl_NL, en_NL

Poland pl_PL, en_PL

Singapore en_SG

Spain es_ES, en_ES

Switzerland de_CH, en_CH, fr_CH

Taiwan zh_TW, en_TW

United States en_US

Sample MEC Code

The MEC library includes a library header file, PayPal.h, for your mobile application or mobile web code. The contents of PayPal.h are shown in Example 5-1. You can access features of the MEC library using the "PayPal : NSObject " interface.

Example 5-1. PayPal.h

#import

typedef enum PayPalEnvironment {

ENV_LIVE,

ENV_SANDBOX,

ENV_NONE,

} PayPalEnvironment;

typedef enum PayPalButtonType {

BUTTON_118x24,

BUTTON_152x33,

BUTTON_194x37,

BUTTON_278x43,

BUTTON_294x43,

BUTTON_TYPE_COUNT,

}PayPalButtonType;

@protocol DeviceReferenceTokenDelegate

@required

- (void)receivedDeviceReferenceToken:(NSString *)token;

- (void)couldNotFetchDeviceReferenceToken; //Check the errorMessage property to see what

//the problem was.

@end

@interface PayPal : NSObject {

@private

BOOL initialized;//Determines if the initialization call has finished and the PayPal

//object is initialized.

BOOL paymentsEnabled;

NSString *appID;

NSString *lang;

PayPalEnvironment environment;

NSString *errorMessage;

NSMutableArray *payButtons;

id delegate;

}

@property (nonatomic, retain) NSString *lang;

@property (nonatomic, retain) NSString *errorMessage;

@property (nonatomic, retain) NSMutableArray *payButtons;

@property (nonatomic, readonly) NSString *appID;

@property (nonatomic, readonly) BOOL initialized;

@property (nonatomic, readonly) BOOL paymentsEnabled;

@property (nonatomic,