Remove the deprecated clearTask and launchDocument flags from NavOptions [119628354]

Fixed

Feature Request

Status Update

No update yet.

Description

il...@google.com

created issue #1

Nov 15, 2018 09:36PM

Component used: Navigation
Version used: 1.0.0-alpha07

The clearTask and launchDocument flags and attributes have been deprecated for a number of releases - they should be removed.

Comments

il...@google.com <il...@google.com> Nov 15, 2018 09:45PM

Accepted by il...@google.com.

ap...@google.com <ap...@google.com> #2Nov 15, 2018 11:58PM

From the other issue:

note that it is never the right approach to attach a <deeplink> to an <activity> destination as that will never give you the right behavior when using an implicit deep link on another app's task (where the system back should immediately take the user back to the app that triggered your deep link). Instead, you should attach your deep link directly to your second activity (either by manually writing the appropriate <intent-filter> or by adding the <deeplink> to the start destination of a nav host in that second activity).

A lint error saying as such when a <deepLink> element is added in Navigation XML would go a really long way to avoiding this case. Our guide to writing Lint checks in AndroidX is a good place to start to start a navigation-runtime-lint artifact that would contain this check.

ap...@google.com <ap...@google.com> #3Nov 16, 2018 12:02AM

We have some public docs on writing library lint rules. Specifically the xml lint rule part should be pretty helpful.

il...@google.com <il...@google.com> Nov 16, 2018 12:13AM

Marked as fixed.

pe...@gmail.com <pe...@gmail.com> #4Dec 10, 2018 03:25AM

CL is WIP: https://android-review.googlesource.com/c/platform/frameworks/support/+/2064176

lo...@gmail.com <lo...@gmail.com> #5Dec 11, 2018 04:34PM

Project: platform/frameworks/support
Branch: androidx-main

commit cd77b4bbe312dd8892dfbb3c662344d13a96c82d
Author: Julia McClellan <juliamcclellan@google.com>
Date: Thu Apr 14 15:31:46 2022

Deep link in activity destination in navigation lint

Test: Included tests of API version and the lint rule
Bug: 178403185

Change-Id: Ic15a5ec165620b7ef5b3f03538cc83b5576add8d

A navigation/navigation-runtime-lint/src/main/java/androidx/navigation/runtime/lint/DeepLinkInActivityDestinationDetector.kt
A navigation/navigation-runtime-lint/src/test/java/androidx/navigation/runtime/lint/ApiLintVersionsTest.kt
M settings.gradle
A navigation/navigation-runtime-lint/build.gradle
M navigation/navigation-runtime/build.gradle
A navigation/navigation-runtime-lint/src/main/java/androidx/navigation/runtime/lint/NavigationRuntimeIssueRegistry.kt
A navigation/navigation-runtime-lint/src/test/java/androidx/navigation/runtime/lint/DeepLinkInActivityDestinationDetectorTest.kt
A navigation/navigation-runtime-lint/src/main/resources/META-INF/services/com.android.tools.lint.client.api.IssueRegistry

https://android-review.googlesource.com/2064176

pe...@gmail.com <pe...@gmail.com> #6Dec 12, 2018 04:03AM

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!