Support SDK like Firebase to each platform in Kotlin Multiplatform Mobile

TYLENOL

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Apr 12, 2021

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Setup

1. Setup cocoapod in iOS Project, and install pod dependencies.
2. Setup cocoapod in shared module build.gradle

plugins {
    kotlin("multiplatform")
    id("com.android.library")    kotlin("native.cocoapods") // apply plugin
}kotlin {    // ...
    cocoapods {
        summary = "Meerkat Multiplatform"
        homepage = "https://github.com/han9dong1ju1/Meerkat"

        ios.deploymentTarget = "13.2"

        pod("FirebaseAnalytics")
    }    // ...
}

common

expect object FirebaseAnalytics {

    fun setUserProperty(key: String, value: String)

    fun logEvent(name: String, vararg params: Pair<String, String>)

}

val Firebase.analytics get() = FirebaseAnalytics

iOS

actual object FirebaseAnalytics {

    actual fun setUserProperty(key: String, value: String) {
        FIRAnalytics.setUserPropertyString(key, value)
    }

    actual fun logEvent(name: String, vararg params: Pair<String, String>) {
        FIRAnalytics.logEventWithName(name, *params.toMap())
    }

}

Android

actual object FirebaseAnalytics {


    actual fun setUserProperty(key: String, value: String) {
        Firebase.analytics.setUserProperty(key, value)
    }

    actual fun logEvent(name: String, vararg params: Pair<String, String>) {
        Firebase.analytics.logEvent(name) {
            params.forEach { (key, value) -> param(key, value) }
        }
    }

}