IssueTracker

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

commit 3582a85010eea5f6676c7ab596e5f019b4ec794f
Author: Ian Lake <ilake@google.com>
Date:   Thu Nov 15 13:20:39 2018

    Expand ActivityNavigator.Extras for passing flags
   
    Instead of just being able to pass an instance
    of ActivityOptionsCompat, move ActivityNavigator.Extras
    to a Builder pattern and add the ability to add
    any set of Intent.FLAG_ACTIVITY_ flags at runtime.
   
    Test: updated tests
    BUG: 119628354
    Change-Id: If58c80ac4eafd630cb982762ea7fa802dd16ec92

M       navigation/integration-tests/testapp/src/main/java/androidx/navigation/testapp/NavigationActivity.kt
M       navigation/runtime/ktx/build.gradle
A       navigation/runtime/ktx/src/androidTest/java/androidx/navigation/ActivityNavigatorExtrasTest.kt
A       navigation/runtime/ktx/src/main/java/androidx/navigation/ActivityNavigatorExtras.kt
M       navigation/runtime/src/androidTest/java/androidx/navigation/ActivityNavigatorTest.kt
M       navigation/runtime/src/main/java/androidx/navigation/ActivityNavigator.java

https://android-review.googlesource.com/828140
https://goto.google.com/android-sha1/3582a85010eea5f6676c7ab596e5f019b4ec794f

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

commit a62e0621853c18be1d07cc8fba078d92a424e24a
Author: Ian Lake <ilake@google.com>
Date:   Thu Nov 15 13:50:59 2018

    Remove deprecated clearTask and launchDocument flags
   
    Test: remaining tests still pass
    BUG: 119628354
    Change-Id: Ic411df16dd3a21351bbd7bac367ed98f9e66025a

M       navigation/common/ktx/src/androidTest/java/androidx/navigation/NavOptionsBuilderTest.kt
M       navigation/common/ktx/src/main/java/androidx/navigation/NavOptionsBuilder.kt
M       navigation/common/src/main/java/androidx/navigation/NavOptions.java
M       navigation/common/src/main/res/values/attrs.xml
M       navigation/fragment/src/main/java/androidx/navigation/fragment/FragmentNavigator.java
M       navigation/runtime/src/main/java/androidx/navigation/NavController.java
M       navigation/runtime/src/main/java/androidx/navigation/NavInflater.java

https://android-review.googlesource.com/828160
https://goto.google.com/android-sha1/a62e0621853c18be1d07cc8fba078d92a424e24a

If the app:clearTask is removed, how can i do when i have a splash and guide page ?
The first page is splash and wen enter the main page, the splash should be removed,or when back from the main,it will go to splash page,that is total wrong.

popUpTo will be able to do that: https://stackoverflow.com/questions/50336112/how-to-disable-up-in-navigation-for-some-fragment-with-the-new-navigation-archit

At current now，there is two ways to do the above。

One：
In the NavHostFragment's Activity, override the onBackPress() method,adn if the current NavDestination is MainFragment then just finish the Activity.

@Override
    public void onBackPressed() {
       NavDestination navDestination = mNavController.getCurrentDestination();
        if (navDestination != null
                && navDestination.getId() == R.id.mainFragment) {
            finish();
            return;
        }
        super.onBackPressed();
    }

Two:
Set the to MainFragment action in Navigation_graph app:popUpTo="@id/nav_graph" and app:popUpToInclusive="true"

<?xml version="1.0" encoding="utf-8"?>
<navigation
    android:id="@+id/nav_graph"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    app:startDestination="@id/splashFragment">

    <fragment
        android:id="@+id/splashFragment"
        android:name="com.ihuman.storydemo.fragment.splash.SplashFragment"
        android:label="fragment_splash"
        tools:layout="@layout/fragment_splash">
        <action
            android:id="@+id/action_splashFragment_to_mainFragment"
            app:destination="@id/mainFragment"
            app:enterAnim="@anim/anim_right_in"
            app:exitAnim="@anim/anim_left_out"
            app:popEnterAnim="@anim/anim_left_in"
            app:popExitAnim="@anim/anim_right_out"
            app:popUpTo="@id/nav_graph"
            app:popUpToInclusive="true"/>
        <action
            android:id="@+id/action_splashFragment_to_guideFragment"
            app:destination="@id/guideFragment"
            app:enterAnim="@anim/anim_right_in"
            app:exitAnim="@anim/anim_left_out"
            app:popEnterAnim="@anim/anim_left_in"
            app:popExitAnim="@anim/anim_right_out"
            app:popUpTo="@id/nav_graph"
            app:popUpToInclusive="true"/>
    </fragment>
       
        <fragment
        android:id="@+id/guideFragment"
        android:name="com.ihuman.storydemo.fragment.guide.GuideFragment"
        android:label="GuideFragment"
        tools:layout="@layout/fragment_guide">
        <action
            android:id="@+id/action_guideFragment_to_mainFragment"
            app:destination="@id/mainFragment"
            app:enterAnim="@anim/anim_right_in"
            app:exitAnim="@anim/anim_left_out"
            app:popEnterAnim="@anim/anim_left_in"
            app:popExitAnim="@anim/anim_right_out"
            app:popUpTo="@id/nav_graph"
            app:popUpToInclusive="true"/>
    </fragment>

    <fragment
        android:id="@+id/mainFragment"
        android:name="com.ihuman.storydemo.fragment.main.MainFragment"
        android:label="fragment_main"
        tools:layout="@layout/fragment_main">
       
    </fragment>
       
</navigation>

Wish for help!