IssueTracker

since these are in public API (:/) we need to do this in 1.2

Opening diff shortly

Project: platform/frameworks/support
Branch: androidx-master-dev

commit d576cbdc911cba16638a44fd8223391a90a07ef7
Author: Mike Nakhimovich <digitalbuddha@users.noreply.github.com>
Date:   Tue Aug 11 09:30:34 2020

    [GH] Hide deprecated internal API.
   
    ## Proposed Changes
   
    * `RoomDatabase.java` has protected `mCallbacks` field which is leaking in the API docs, we should @Hide it.
   
    ## Testing
   
    Test: Ran unit tests locally
   
    ## Issues Fixed
   
    Fixes: 76109329
   
    This is an imported pull request from https://github.com/androidx/androidx/pull/61.
   
    Resolves #61
    Github-Pr-Head-Sha: 6440daa3a63752c7f9d5ba2a390248cd85bc634f
    GitOrigin-RevId: fe92d8466a59b44b218b6ca3cbd57dcda17992f7
   
    Change-Id: Id599cdf5b02b32bdae0166266fb7da967598fe92

A       room/runtime/api/current.ignore
M       room/runtime/api/current.txt
M       room/runtime/api/public_plus_experimental_current.txt
M       room/runtime/api/restricted_current.txt
M       room/runtime/src/main/java/androidx/room/RoomDatabase.java

https://android-review.googlesource.com/1396827

Project: platform/frameworks/support
Branch: androidx-master-dev

commit d5a1c250e6e3471297f64e116a46d1a3a5c9db6c
Author: Ian Lake <ilake@google.com>
Date:   Wed Apr 24 15:37:02 2019

    Use OnBackPressedCallback in NavController
   
    Replace the brittle OnBackStackChangedListener
    with an OnBackPressedCallback registered at the
    NavController level which works on all Navigators.
   
    It also helps fix a timing issue where the state
    of the FragmentNavigator isn't updated after a Fragment
    is popped off the stack, leading to a mismatch in
    expected actions available if the newly visible Fragment
    calls navigate() in a lifecycle method.
   
    Test: updated tests, new OnBackPressedTest
    BUG: 111598096
    Change-Id: Id679ea6ac9b238240649656fc0796552d6191757

M       navigation/common/api/restricted_2.1.0-alpha03.txt
M       navigation/common/api/restricted_current.txt
M       navigation/common/src/main/java/androidx/navigation/Navigator.java
M       navigation/fragment/src/androidTest/AndroidManifest.xml
M       navigation/fragment/src/androidTest/java/androidx/navigation/fragment/FragmentNavigatorTest.kt
A       navigation/fragment/src/androidTest/java/androidx/navigation/fragment/OnBackPressedTest.kt
M       navigation/fragment/src/androidTest/java/androidx/navigation/fragment/test/EmptyFragment.kt
A       navigation/fragment/src/androidTest/java/androidx/navigation/fragment/test/NavigationActivity.kt
A       navigation/fragment/src/androidTest/res/navigation/nav_simple.xml
M       navigation/fragment/src/main/java/androidx/navigation/fragment/FragmentNavigator.java
M       navigation/fragment/src/main/java/androidx/navigation/fragment/NavHostFragment.java
M       navigation/runtime/api/2.1.0-alpha03.txt
M       navigation/runtime/api/current.txt
M       navigation/runtime/build.gradle
M       navigation/runtime/src/androidTest/java/androidx/navigation/NavControllerTest.kt
M       navigation/runtime/src/main/java/androidx/navigation/NavController.java
M       navigation/runtime/src/main/java/androidx/navigation/NavHost.java

https://android-review.googlesource.com/951629
https://goto.google.com/android-sha1/d5a1c250e6e3471297f64e116a46d1a3a5c9db6c

NavController now offers new APIs to hook up to an OnBackPressedDispatcher: https://developer.android.com/guide/navigation/navigation-custom-back

Which allows NavController to intercept the back button before the FragmentManager, ensuring that we update our state before going through Lifecycle events and fixing this edge case.

This behavior is enabled by default if you're using NavHostFragment, but custom NavHosts can call through to this same API for their own Navigators and not try to intercept the back button themselves.

This will be available in Navigation 2.1.0-alpha03.