Android feature flags installation

The best way to install the PostHog Android library is with a build system like Gradle. This ensures you can easily upgrade to the latest versions.

All you need to do is add the posthog-android module to your App's build.gradle or build.gradle.kts:

app/build.gradle
dependencies {
  implementation("com.posthog:posthog-android:3.+")
}

Configuration

The best place to initialize the client is in your Application subclass.

Kotlin
import android.app.Application
import com.posthog.android.PostHogAndroid
import com.posthog.android.PostHogAndroidConfig

class SampleApp : Application() {

    companion object {
        const val POSTHOG_API_KEY = "<ph_project_api_key>"
        // usually 'https://us.i.posthog.com' or 'https://eu.i.posthog.com'
        const val POSTHOG_HOST = "https://us.i.posthog.com"
    }

    override fun onCreate() {
        super.onCreate()

        val config = PostHogAndroidConfig(
            apiKey = POSTHOG_API_KEY,
            host = POSTHOG_HOST 
        )
        PostHogAndroid.setup(this, config)
    }
}

Next steps

Resource	Description
Adding feature flag code	How to check flags in your code for all platforms
Framework-specific guides	Setup guides for React Native, Next.js, Flutter, and other frameworks
How to do a phased rollout	Gradually roll out features to minimize risk
More tutorials	Other real-world examples and use cases

Android feature flags installation

Configuration

Next steps

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