Set up Android SDK

Install and initialize the LaunchDarkly Android SDK

Install the package

  implementation 'com.launchdarkly:launchdarkly-android-client-sdk:5.+'

The SDK uses AndroidX from Jetpack. If your project does not use AndroidX, read Android’s migration guide.

Initialize the SDK

import com.launchdarkly.sdk.*
import com.launchdarkly.sdk.android.*;

val ldConfig = LDConfig.Builder(AutoEnvAttributes.Enabled)
    .mobileKey("YOUR_MOBILE_KEY")
    .build()

// A "context" is a data object representing users, devices, organizations, and other entities.
val context = LDContext.create("EXAMPLE_CONTEXT_KEY")

// If you don't want to block execution while the SDK tries to get
// latest flags, move this code into an async IO task and await on its completion.
val client: LDClient = LDClient.init(this@BaseApplication, ldConfig, context, 5)

Finding your SDK credentials

You can find your server-side SDK key, client-side ID, and mobile key in the “Resources” section of the help menu. Click the help icon at the bottom left corner of the LaunchDarkly UI, then choose SDK keys:

To learn more, read Initialize the client in the Android SDK reference guide.