Added in API level 3

Callback

interface Callback
android.os.Handler.Callback

Callback interface you can use when instantiating a Handler to avoid having to implement your own subclass of Handler.

Summary

Public methods
abstract Boolean

Public methods

handleMessage

Added in API level 3
abstract fun handleMessage(msg: Message): Boolean
Parameters
msg Message: A Message object This value cannot be null.
Return
Boolean True if no further handling is desired