tree 97304b30e1693c14ec7f5938698fb7e38cac121a
parent dfdcff3ed4f76a3233e7a5770b8774a09b3fab3e
author Jeremy Woods <jbwoods@google.com> 1604342549 -0800
committer Jeremy Woods <jbwoods@google.com> 1604346787 -0800

Move startDestination param before route

Since route is optional and the startDestination is not,
startDestination should come before the route in the NavHost parameter
list.

Also added documentation for the KEY_ROUTE constant.

RelNote: "startDestination now comes before the route in the list of a
parameters for a NavHost"

Test: ./gradlew checkApi
Fixes: 171831935
Change-Id: Ie620e9208948db572ab70ee6be09f3dafb605bd7