Android SDK Getting Started

Initializing the SDK

We recommend initializing the SDK once in onCreate of your Application class or MainActivity to receive features as soon as possible, and to pass around the client instance around in your app.

Using the builder pattern we can initialize the DevCycle SDK by providing the applicationContext, DevCycleUser, and DevCycle mobile SDK key:

Kotlin example:

override fun onCreate(savedInstanceState: Bundle?) {

    ...

    // NOTE: It is not recommended to hardcode SDK keys into your application.
    // Consider storing keys securely and reading from secure storage.

    val devcycleClient: DevCycleClient = DevCycleClient.builder()
        .withContext(applicationContext)
        .withUser(
            DevCycleUser.builder()
                .withUserId("test_user")
                .build()
        )
        .withSDKKey("<DEVCYCLE_MOBILE_SDK_KEY>")
        .build()

    ...
}

Java example:

@Override
protected void onCreate(Bundle savedInstanceState) {

    ...

    // NOTE: It is not recommended to hardcode SDK keys into your application.
    // Consider storing keys securely and reading from secure storage.

    DevCycleClient devcycleClient = DevCycleClient.builder()
        .withContext(getApplicationContext())
        .withUser(
            DevCycleUser.builder()
                .withUserId("test_user")
                .build()
            )
        .withSDKKey("<DEVCYCLE_MOBILE_SDK_KEY>")
        .build();

    ...
}

DevCycleClientBuilder

The DevCycleClient can be built using the following methods:

DevCycleClientBuilder class

Method	Parameter	Description
withContext	Context	App context
withSDKKey	String	DevCycle SDK Key
withUser	DevCycleUser	DevCycle user object
withOptions	DevCycleOptions	DevCycle options object
withLogger	Timber.Tree	Logger override to replace default logger
withLogLevel	LogLevel	Set log level of the default logger. Defaults to LogLevel.ERROR

DevCycleUserBuilder

A DevCycleUser can be built using the following methods:

DevCycleUser Builder class

Method	Parameter	Description
withUserId	String	Unique user ID
withIsAnonymous	Boolean	Boolean to indicate if the user is anonymous
withEmail	String	User's email
withName	String	User's name
withCountry	String	User's country
withCustomData	Map<String, Any>	Key/value map of properties to be used for targeting
withPrivateCustomData	Map<String, Any>	Key/value map of properties to be used for targeting. Private properties will not be included in event logging.

DevCycleOptions Builder

The SDK exposes various initialization options which can be used by passing a DevCycleOptions object to the withOptions method of DevCycleClient.builder():

DevCycleOptions builder class

Method	Parameter	Default	Description
flushEventsIntervalMs	Long	10000	Controls the interval between flushing events to the DevCycle servers in milliseconds, defaults to 10 seconds.
disableCustomEventLogging	Boolean	false	Disables logging of custom events generated by calling .track() method to DevCycle.
disableAutomaticEventLogging	Boolean	false	Disables logging of SDK generated events (e.g. variableEvaluated, variableDefaulted) to DevCycle.
enableEdgeDB	Boolean	false	Enables the usage of EdgeDB for DevCycle that syncs User Data to DevCycle.
configCacheTTL	Long	604800000	The maximum allowed age of a cached config in milliseconds, defaults to 7 days
disableConfigCache	Boolean	false	Disable the use of cached configs
disableRealtimeUpdates	Boolean	false	Disable Realtime Updates

Notifying when DevCycle features are available

You can attach a callback on the client to determine when your features have been loaded:

Kotlin

devcycleClient.onInitialized(object : DevCycleCallback<String> {
    override fun onSuccess(result: String) {
        // successfully initialized
    }

    override fun onError(t: Throwable) {
        // there was an error
    }
})

Java

devcycleClient.onInitialized(new DevCycleCallback<String>() {
    @Override
    public void onSuccess(String result) {
        // user configuration loaded successfully from DevCycle
    }

    @Override
    public void onError(@NonNull Throwable t) {
        // user configuration failed to load from DevCycle, default values will be used for Variables.
    }
});