The documentation discusses how to send simple integers and strings. For example:
<argument
android:name="myIntArg"
android:defaultValue="255"
app:argType="integer" />
In the origin Fragment:
val action = OriginFragmentDirections.myAction(myInt)
findNavController().navigate(action)
In the destination Fragment:
val receivedInt = DestinationFragmentArgs.fromBundle(arguments).myIntArg
But say instead of myIntArg
, I wanted to send an enum (myEnumArg
). How would I do that? What app:argType
would I use in my argument?
Edit: As per the Navigation 1.0.0-alpha08 release notes:
Safe Args supports Serializable objects, including Enum values. Enum types can set a default value by using the enum literal without the class name (e.g.
app:defaultValue="READ"
) b/111316353
So this is now possible - you would use the name of your Enum class (i.e., com.example.EnumClass
) or a relative name (.EnumClass
) which will automatically prepend your app's package name to the class name.
Previous answer:
This is not possible with the current version of Navigation (1.0.0-alpha07), but the existing feature request is marked as fixed and the ability to use enums as arguments will be available in alpha08