Fixed
Status Update
No update yet.
Comments
ap...@google.com
If you need to add a custom Navigator but don't want to subclass NavHost (which we expect will be needed in most cases), the correct approach is to add it before you set your graph:
1) Don't use app:navGraph in your XML
2) Get a reference to your NavController
3) Add your Navigator to the NavController
4) Call setGraph on the NavController
This relies on the fact that NavController waits until the graph is set before restoring state / doing anything at all.
Technically, the createFragmentNavigator() call in NavHostFragment is already called at the same time as your proposed onNavControllerCreated() method so as a workaround, you could override that method, add your Navigator, then return super.createFragmentNavigator().
1) Don't use app:navGraph in your XML
2) Get a reference to your NavController
3) Add your Navigator to the NavController
4) Call setGraph on the NavController
This relies on the fact that NavController waits until the graph is set before restoring state / doing anything at all.
Technically, the createFragmentNavigator() call in NavHostFragment is already called at the same time as your proposed onNavControllerCreated() method so as a workaround, you could override that method, add your Navigator, then return super.createFragmentNavigator().
ap...@google.com
The first solution does not work, because after screen rotation, the graph (probably a restored graph) is set when Activity.setContentView() is called.
The workaround with createFragmentNavigator() works, though it's not very elegant. Maybe the method could be renamed to createNavigators() and return a list or an array of Navigators?
Anyway, it is a good enough solution for now, so it is not very urgent.
In conclusion:
* I think that a better support for custom destinations should be provided before final release.
* I would suggest describing the "Add support for new destination types" section in the documentation in more details.
Thank you
The workaround with createFragmentNavigator() works, though it's not very elegant. Maybe the method could be renamed to createNavigators() and return a list or an array of Navigators?
Anyway, it is a good enough solution for now, so it is not very urgent.
In conclusion:
* I think that a better support for custom destinations should be provided before final release.
* I would suggest describing the "Add support for new destination types" section in the documentation in more details.
Thank you
ap...@google.com
I suspect the issue you're running into for the first solution is that you're using the setGraph(R.navigation.graph) method, which does indeed cause it to automatically inflate the graph by id on rotation. Using setGraph(navGraph) where navGraph is a navGraph object you've inflated with navController.getNavInflater().inflate(R.navigation.graph) will never automatically be recreated.
Definitely something we can do better on though :)
Definitely something we can do better on though :)
jb...@google.com
Project: platform/frameworks/support
Branch: androidx-master-dev
commit a2e68921841727237528c4ac7076d50af64663c8
Author: Ian Lake <ilake@google.com>
Date: Wed Oct 17 16:46:28 2018
Make setGraph(int) and setGraph(NavGraph) act identically
Remove the auto restore functionality from NavController's
setGraph(int) method so that it functions identically to
setGraph(NavGraph).
This ensures that developers that manually are calling
setGraph() after adding custom navigators don't get
recreated too early.
Test: updated NavController test
BUG: 110763345
Change-Id: I51ae7c74451669d6bfed0fe84df445c2ff272e6e
M navigation/runtime/src/androidTest/java/androidx/navigation/NavControllerTest.kt
M navigation/runtime/src/main/java/androidx/navigation/NavController.java
https://android-review.googlesource.com/792819
https://goto.google.com/android-sha1/a2e68921841727237528c4ac7076d50af64663c8
Branch: androidx-master-dev
commit a2e68921841727237528c4ac7076d50af64663c8
Author: Ian Lake <ilake@google.com>
Date: Wed Oct 17 16:46:28 2018
Make setGraph(int) and setGraph(NavGraph) act identically
Remove the auto restore functionality from NavController's
setGraph(int) method so that it functions identically to
setGraph(NavGraph).
This ensures that developers that manually are calling
setGraph() after adding custom navigators don't get
recreated too early.
Test: updated NavController test
BUG: 110763345
Change-Id: I51ae7c74451669d6bfed0fe84df445c2ff272e6e
M navigation/runtime/src/androidTest/java/androidx/navigation/NavControllerTest.kt
M navigation/runtime/src/main/java/androidx/navigation/NavController.java
ap...@google.com
We've decided to remove the automatic recreation that was unique to setGraph(int) - it now acts identically to setGraph(NavGraph), so the flow in #2 can be used to ensure that you have custom Navigators added before calling setGraph.
This fix will be available in 1.0.0-alpha07
This fix will be available in 1.0.0-alpha07
ap...@google.com
Project: platform/frameworks/support
Branch: androidx-master-dev
commit f40bad0faef05bded2d226711338e489309885ba
Author: Ian Lake <ilake@google.com>
Date: Tue Oct 23 21:03:24 2018
Ensure NavHostFragment calls setGraph on restore
If a graph is set on NavHostFragment via
NavHostFragment.create() or through
app:navGraph, it should be restored immediately
after the call to restoreState.
Test: testapp now works
BUG: 110763345
Change-Id: I7a0c656480e27a66637667519eabe61820b09a6c
M navigation/fragment/src/main/java/androidx/navigation/fragment/NavHostFragment.java
https://android-review.googlesource.com/799721
https://goto.google.com/android-sha1/f40bad0faef05bded2d226711338e489309885ba
Branch: androidx-master-dev
commit f40bad0faef05bded2d226711338e489309885ba
Author: Ian Lake <ilake@google.com>
Date: Tue Oct 23 21:03:24 2018
Ensure NavHostFragment calls setGraph on restore
If a graph is set on NavHostFragment via
NavHostFragment.create() or through
app:navGraph, it should be restored immediately
after the call to restoreState.
Test: testapp now works
BUG: 110763345
Change-Id: I7a0c656480e27a66637667519eabe61820b09a6c
M navigation/fragment/src/main/java/androidx/navigation/fragment/NavHostFragment.java
ap...@google.com
Project: platform/frameworks/support
Branch: snap-temp-L69500000699869549
commit 0330f7a7a613a290675d78b6e2d0f78cf15521d6
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
https://android-review.googlesource.com/1436912
Branch: snap-temp-L69500000699869549
commit 0330f7a7a613a290675d78b6e2d0f78cf15521d6
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
ap...@google.com
Project: platform/frameworks/support
Branch: snap-temp-L31300000699869852
commit ae16020f57114d8e9f07544dc57e9c00c4153d26
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
https://android-review.googlesource.com/1436916
Branch: snap-temp-L31300000699869852
commit ae16020f57114d8e9f07544dc57e9c00c4153d26
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
ap...@google.com
Project: platform/frameworks/support
Branch: snap-temp-L53700000699921463
commit adb93346bcf4e8b019ec009e499e85536c223415
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
https://android-review.googlesource.com/1436919
Branch: snap-temp-L53700000699921463
commit adb93346bcf4e8b019ec009e499e85536c223415
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
ap...@google.com
Project: platform/frameworks/support
Branch: snap-temp-L25200000699921867
commit 868747fcf7ed98039c7a75125a540b348e1b8e9f
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
https://android-review.googlesource.com/1436923
Branch: snap-temp-L25200000699921867
commit 868747fcf7ed98039c7a75125a540b348e1b8e9f
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
ap...@google.com
Project: platform/frameworks/support
Branch: snap-temp-L07700000699933785
commit 57ed08fa1034139dbb2bbabd6d4b87299481bd4a
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
https://android-review.googlesource.com/1436928
Branch: snap-temp-L07700000699933785
commit 57ed08fa1034139dbb2bbabd6d4b87299481bd4a
Author: Jeremy Woods <jbwoods@google.com>
Date: Fri Sep 11 15:58:27 2020
Add nav default animator resources
Animators are recommeneded over Animations for doing effects in fragment
and Navigation. We need to make default animator resources for
Navigation.
Test: Tested in sample apps
Bug: 167430145
Change-Id: I904d78268d8b8574c799ae1b0f5887e518fdb5f6
(cherry picked from commit 1e9ed84322fddd9228df1f96bc8cb76748e0a4fe)
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.java
M navigation/navigation-ui/src/main/res-public/values/public_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_exit_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_enter_anim.xml
A navigation/navigation-ui/src/main/res/animator/nav_default_pop_exit_anim.xml
Description
The current Navigation default effects are not only
Animations, but they are also inside of sets. This causes issues (likeAnimator,Transition, orAndroidx Transition.Animatorwas built as a follow up toAnimation, specifically to handle its short comings. We should be usingAnimatoras our default effects instead ofAnimation.Because these resources are part of the public API and we don't want to remove or change their directory, we will attempt to have them remain in the same
R.animres location, and just change their underlying implementation.