Hands-On Design Patterns with Swift

The classes to adapt

In this example, we'll adapt both Mixpanel and Google Analytics for Firebase. Let's have a look at how both look, and how to use them:

open class MixpanelInstance: CustomDebugStringConvertible, FlushDelegate, AEDelegate {    /* ... */    open func track(event: String?, properties: Properties? = nil) {        /* ... */    }}

It is possible to use Mixpanel to track an event with additional properties:

Mixpanel.mainInstance()    .track(event: "Read Book",            properties: ["name": "Design Patterns with Swift",                         "format": "paperback"])

Google Analytics for Firebase, however, exposes the tracking method through a static method from Objective-C:

NS_SWIFT_NAME(Analytics)@interface FIRAnalytics : NSObject/* ... */+ (void)logEventWithName:(NSString ...