Use JDeferred in Android while dispatching callbacks in UI thread and/or Background thread.
'org.jdeferred:jdeferred-android-aar:1.2.2'
<dependency>
<groupId>org.jdeferred</groupId>
<artifactId>jdeferred-android-aar</artifactId>
<version>1.2.2</version>
</dependency>
<dependency org="org.jdeferred" name="jdeferred-android-aar" rev="1.2.2"/>
"org.jdeferred", "jdeferred-android-aar", "1.2.2"