BackgroundReferrerLaunch

```
public class BackgroundReferrerLaunch
extends AFEvent
                    
```
This basically is the same as Attr but sent on receiving Broadcast from Google Play. This is old and deprecated way, listening `com.android.vending.INSTALL_REFERRER` broadcast.
On new devices com.appsflyer.internal.referrer.GoogleReferrer is used.
TODO check if it's still used anywhere

Method Summary

Modifier and Type	Method	Description
`TaskType`	`taskTypeForQueue()`

Methods inherited from class com.appsflyer.AFEvent
addParams, cacheKey, cacheKey, getRequestListener, isEncrypt, isLaunchEvent, launchCounter, launchCounter, params, post, post, putParam, referrer, requestListener, shouldAddCheckSum, shouldAddLvlData, shouldAddReceipt, url, urlString, urlString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - taskTypeForQueue
```
 TaskType taskTypeForQueue()
```