Firebase com.crashlytics.android.beta Classes Beta DeviceTokenLoader This ValueLoader performs File I/O so it should not be used as part of a get(android.content.Context, io.fabric.sdk.android.services.cache.ValueLoader) on the main thread! Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated January 24, 2019.