(1.2.0-rc03) Fragment destruction will call onViewCreated on child Fragment in specific situation [146290333]

Fixed

Bug

Status Update

No update yet.

Description

mr...@gmail.com

created issue #1

Dec 16, 2019 05:37AM

Component used: Fragment
Version used: 1.2.0-rc03
Devices/Android versions reproduced on:
- Pixel 3 API 27 Emulator
- Pixel 3 API 29 Emulator
- LG G7 ThinQ API 28

Sample code:

https://github.com/eneim/Fragment-RC3-Bug

How to use:
- Make sure Fragment F1 is using layout fragment_f1_bad. Use the code to start the MainActivity, produce a configuration change (eg: rotate the device) --> it will crash due to an Exception is thrown in a check code.
- Changing F1 layout to fragment_f1_good and it will be fine.

Description:

- Saying I have a Fragment F1 in my Activity, defined either by xml (fragment tag or FragmentContainerView) or manual adding at runtime.
- F1's layout is defined in an xml with a 'fragment' tag whose name is a Fragment F2.
- The app starts normally as usual.
- If a configuration change happens, the destruction of F1 will call F2's onViewCreated.

In the sample app, I put a check code which checks if the Activity is destroyed or not, and in this case it will crash the app.

The expected behavior should be: the destruction of F1 should not call F2's onViewCreated.

This issue doesn't occur on 1.2.0-rc03 IF I use `FragmentContainerView` instead of `fragment` to add F2.
This issue cannot be reproduced on 1.2.0-rc02, 1.2.0-rc01 and (I believe) earlier versions.

Please find a call stack in attached screenshot (taken from a debug session on Pixel 3 API 29 Emulator).

Screen Shot 2019-12-16 at 14.33.43.png

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Comments

be...@citymapper.com <be...@citymapper.com> #2Dec 17, 2019 05:56PM

Seems to be a DNS problem with systems that have 'obtain DNS server address automatically'. Changed my system to a manual setting and the browser etc now work. SDK 2.2 didn't seem to mind the auto setting though.

il...@google.com <il...@google.com> #3Dec 17, 2019 09:41PM

Could you please describe how/where you changed your system to a manual setting?

be...@citymapper.com <be...@citymapper.com> #4Dec 18, 2019 09:44AM

Based on its date, this issue was originally reported before Android 2.3. Because of the many changes that existed in Android 4.x compared to previous versions, it's very likely that this issue doesn't exist in recent versions of Android like 4.2.2 or newer. Because of the high likelihood that this issue is obsolete, it is getting closed automatically by a script, without a human looking at it in detail. If the issue still exists on a Nexus 4 or Nexus 7 running Android 4.2.2 and is not related to Google applications, please open a new report accordingly.

il...@google.com <il...@google.com> #5Dec 18, 2019 08:41PM

Marked as fixed, reassigned to il...@google.com.

java.lang.IllegalArgumentException: Unable to locate adb
at com.android.tools.idea.run.editor.DeployTargetPickerDialog.<init>(DeployTargetPickerDialog.java:144)
at com.android.tools.idea.run.editor.ShowChooserTargetProvider.showPrompt(ShowChooserTargetProvider.java:113)
at com.android.tools.idea.run.AndroidRunConfigurationBase.getDeployTarget(AndroidRunConfigurationBase.java:600)
at com.android.tools.idea.run.AndroidRunConfigurationBase.doGetState(AndroidRunConfigurationBase.java:281)
at com.android.tools.idea.run.AndroidRunConfigurationBase.getState(AndroidRunConfigurationBase.java:241)
at com.intellij.execution.runners.ExecutionEnvironment.getState(ExecutionEnvironment.java:158)
at com.intellij.execution.runners.BaseProgramRunner.execute(BaseProgramRunner.java:55)
at com.intellij.execution.runners.BaseProgramRunner.execute(BaseProgramRunner.java:50)
at com.intellij.execution.ProgramRunnerUtil.executeConfigurationAsync(ProgramRunnerUtil.java:92)
at com.intellij.execution.ProgramRunnerUtil.executeConfiguration(ProgramRunnerUtil.java:41)
at com.intellij.execution.impl.ExecutionManagerImpl.restart(ExecutionManagerImpl.java:93)
at com.intellij.execution.impl.ExecutionManagerImpl.access$300(ExecutionManagerImpl.java:44)
at com.intellij.execution.impl.ExecutionManagerImpl$3.run(ExecutionManagerImpl.java:442)
at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:232)
at com.intellij.util.Alarm$Request.runSafely(Alarm.java:356)
at com.intellij.util.Alarm$Request.run(Alarm.java:343)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at com.intellij.util.concurrency.SchedulingWrapper$MyScheduledFutureTask.run(SchedulingWrapper.java:228)
at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:315)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.doRun(LaterInvocator.java:435)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.runNextEvent(LaterInvocator.java:419)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:403)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:762)
at java.awt.EventQueue.access$500(EventQueue.java:98)
at java.awt.EventQueue$3.run(EventQueue.java:715)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:732)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:755)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:704)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:391)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

mr...@gmail.com <mr...@gmail.com> #6Dec 20, 2019 01:27AM

voilà ce qu'on m'affiche lorsque j’exécute mon programme

il...@google.com <il...@google.com> #7Jan 6, 2020 06:28PM

je ne vois pas comment résoudre ce problème. svp aidez moi

Issue 146290333