Dragging and dropping Icons (shortcuts) to Homescreen adds to folder on another page. [36921054]

Obsolete

Bug

[AOSP] assigned

Status Update

No update yet.

Description

sb...@gmail.com

created issue #1

Sep 4, 2010 03:15PM

I have had this bug on my Nexus One with stock 2.2 Froyo for awhile now and I have finally narrowed down the exact issue however not the circumstances which cause it to occur.

To replicate:

Open the App Tray (pop-up window of all installed apps) and press and hold one icon to drag it to a home screen. Locate the final position and release. This should locate the icon on the visible home screen in the location you released it. In some conditions though the icon will just disappear seeming to have been deleted. Often frequent attempts to place the icon in the same location will result in the same effect, the icon disappears.

Here is what is happening: The 'drop' functionality is confused as to what page it is currently on. IF there is a folder located on another home screen in the same X and Y position as the desired location on this home screen the icon will be added to that folder instead. Repeated attempts to add the icon to the same location will result in multiple icons being added to that folder on the other screen.

What makes it even more mystical is this. It seems that even though the icon has been added to the wrong folder, the 'refresh' routine for that folder's UI is never called, so opening that folder immediately after will not show the 'missing' icon. However if the device is rebooted all of the 'missing' icons will now appear in their folders since the folder contents have been reloaded.

Unfortunately I have not yet been able to figure out what conditions cause this to happen. Frequently I can add icons with no issues but then suddenly the problem will begin to occur and it is 100% repeatable there-after.

I should also mention that using the home screen options menu to add an application shortcut (vs. using the app-tray to drag it out) does not exhibit this bug. This is my present work around to the issue.

Step by step reproduction:
1. Choose 2 home screens...
2. On home screen A add a blank folder in the 1x1 icon position
3. Change to home screen B and open the App Tray
4. Press and hold and icon to drag it to the 1x1 position of home screen B
5. Release the icon and it disappears
6. Open the folder on home screen A and it will be empty
7. Reboot the OS and open the folder on home screen A and the icon will be there.

Work around:
Use the "Add" function on the home screen options menu to add a shortcut. Works every time no matter the icon location, even when the above bug is happening.

If I can narrow down the conditions that start this bug occurring I will further update this report. At the moment on my device it seems to be about 40% of the time on average.

I am a developer and available to aid in testing if so desired.

Comments

kp...@gmail.com <kp...@gmail.com> #2Sep 26, 2010 01:43AM

This is really critical. Every time I disconnect via "cast" my app crashes (or if I start casting with another app) my app crashes in the background because this is used by the cast API.

java.lang.NullPointerException: Attempt to write to field 'java.lang.ref.WeakReference android.support.v4.media.session.MediaSessionCompat$Callback.mSessionImpl' on a null object reference
at android.support.v4.media.session.MediaSessionCompat$MediaSessionImplApi21.setCallback(MediaSessionCompat.java:2305)
at android.support.v4.media.session.MediaSessionCompat.setCallback(MediaSessionCompat.java:267)
at android.support.v4.media.session.MediaSessionCompat.setCallback(MediaSessionCompat.java:255)
at com.google.android.gms.internal.zzxe.zzcb(Unknown Source)
at com.google.android.gms.cast.framework.CastSession.zzbV(Unknown Source)
at com.google.android.gms.cast.framework.CastSession.zza(Unknown Source)
at com.google.android.gms.cast.framework.CastSession$zzb.zzbV(Unknown Source)

kp...@gmail.com <kp...@gmail.com> #3Sep 26, 2010 01:44AM

Hi,

Request you to provide below information

Please attach your sample android project which reproduces the issue, zip it and share(just to avoid the confusion between your sample code and the one we create to replicate the issue,sample code is requested here).

Explain expected and observed behavior? Attach screen shots for more clarity.

Explain the steps to reproduce the issue with your apk. Provide all necessary information to reproduce the issue.

Note: Please upload the attachments to google drive and share the folder to android-bugreport@google.com, then share the link here.

ja...@yahoo.com <ja...@yahoo.com> #4Jan 30, 2011 05:02AM

here you go

https://drive.google.com/drive/folders/0B4FfLhYv65yoVmJKd2c1QkdxMGs?usp=sharing

Expected behavior: don't crash.
Observed: NullPointerException

To reproduce, just run the application on Android API 23+

wb...@gmail.com <wb...@gmail.com> #5Feb 4, 2011 08:34AM

You can also reproduce the "Cast" issue using the UAMP sample which is found here:

https://github.com/googlesamples/android-UniversalMusicPlayer

Just update mobile/build.gradle to use 25.1.0 and the compile/target to 25. You just then need to start casting and then disconnect from cast. You don't even have to play content.

je...@gmail.com <je...@gmail.com> #6Feb 27, 2011 03:37PM

I am seeing the same on disconnect on Lollipop. This issue was introduced in v25.1.0--it is not an issue in v25.0.1.

12-14 11:39:27.742: E/UncaughtExceptionHandler(2212): Uncaught exception: java.lang.NullPointerException: Attempt to write to field 'java.lang.ref.WeakReference android.support.v4.media.session.MediaSessionCompat$Callback.mSessionImpl' on a null object reference
12-14 11:39:27.774: E/AndroidRuntime(2212): FATAL EXCEPTION: main
12-14 11:39:27.774: E/AndroidRuntime(2212): java.lang.NullPointerException: Attempt to write to field 'java.lang.ref.WeakReference android.support.v4.media.session.MediaSessionCompat$Callback.mSessionImpl' on a null object reference
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.support.v4.media.session.MediaSessionCompat$MediaSessionImplApi21.setCallback(MediaSessionCompat.java:2305)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.support.v4.media.session.MediaSessionCompat.setCallback(MediaSessionCompat.java:267)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.support.v4.media.session.MediaSessionCompat.setCallback(MediaSessionCompat.java:255)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.internal.zzxe.zzcb(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.cast.framework.CastSession.zzbV(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.cast.framework.CastSession.zza(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.cast.framework.CastSession$zzb.zzbV(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.cast.framework.zzf$zza.onTransact(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.os.Binder.transact(Binder.java:499)
12-14 11:39:27.774: E/AndroidRuntime(2212): at zt.a(:com.google.android.gms.DynamiteModulesC:199)
12-14 11:39:27.774: E/AndroidRuntime(2212): at zj.a(:com.google.android.gms.DynamiteModulesC:128)
12-14 11:39:27.774: E/AndroidRuntime(2212): at zy.onTransact(:com.google.android.gms.DynamiteModulesC:122)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.os.Binder.transact(Binder.java:499)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.cast.framework.zzh$zza$zza.zzb(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.cast.framework.CastSession.end(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.cast.framework.Session$zza.end(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.cast.framework.zzq$zza.onTransact(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.os.Binder.transact(Binder.java:499)
12-14 11:39:27.774: E/AndroidRuntime(2212): at aba.a(:com.google.android.gms.DynamiteModulesC:216)
12-14 11:39:27.774: E/AndroidRuntime(2212): at abi.a(:com.google.android.gms.DynamiteModulesC:305)
12-14 11:39:27.774: E/AndroidRuntime(2212): at ace.a(:com.google.android.gms.DynamiteModulesC:61)
12-14 11:39:27.774: E/AndroidRuntime(2212): at acb.onTransact(:com.google.android.gms.DynamiteModulesC:144)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.os.Binder.transact(Binder.java:499)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.internal.zzwv$zza$zza.zza(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.google.android.gms.internal.zzwy.onRouteUnselected(Unknown Source)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.support.v7.media.MediaRouter$GlobalMediaRouter$CallbackHandler.invokeCallback(MediaRouter.java:2999)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.support.v7.media.MediaRouter$GlobalMediaRouter$CallbackHandler.handleMessage(MediaRouter.java:2946)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.os.Handler.dispatchMessage(Handler.java:102)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.os.Looper.loop(Looper.java:154)
12-14 11:39:27.774: E/AndroidRuntime(2212): at android.app.ActivityThread.main(ActivityThread.java:6119)
12-14 11:39:27.774: E/AndroidRuntime(2212): at java.lang.reflect.Method.invoke(Native Method)
12-14 11:39:27.774: E/AndroidRuntime(2212): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)

je...@gmail.com <je...@gmail.com> #7Feb 27, 2011 03:38PM

The defect can be found at `android.support.v4.media.session.MediaSessionCompat.MediaSessionImplApi21#setCallback(Callback, Handler)` in the v25.1.0 of the support libraries.

The `android.support.v4.media.session.MediaSessionCompat#setCallback(Callback, Handler)` method indicates that a null value for the Callback parameter is valid, yet the `MediaSessionImplApi21` implementation attempts to write to a member variable to it.

te...@gmail.com <te...@gmail.com> #8Feb 27, 2011 05:52PM

I also reproduced this issue, who can tell me how to fix it?

gi...@gmail.com <gi...@gmail.com> #9Mar 3, 2011 02:05PM

The fix was already merged. The next release of support lib will have the fix.

tr...@gmail.com <tr...@gmail.com> #10Apr 6, 2011 03:42PM

Is there a work-around for this issue until the next version of the support library is released? As far as I can tell using any version of mediarouter-v7:25.x.x causes this crash.

bl...@gmail.com <bl...@gmail.com> #11Apr 13, 2011 02:21PM

com.android.support:mediarouter-v7:25.0.1 is working for me. Try that version again.

do...@gmail.com <do...@gmail.com> #12May 5, 2011 07:55PM

01-15 09:52:56.838 21662-21662/com.clients.mobile.gen.next.iqueue.provider E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.clients.mobile.gen.next.iqueue.provider, PID: 21662
java.lang.NullPointerException: Attempt to write to field 'java.lang.ref.WeakReference android.support.v4.media.session.MediaSessionCompat$Callback.mSessionImpl' on a null object reference
at android.support.v4.media.session.MediaSessionCompat$MediaSessionImplApi21.setCallback(MediaSessionCompat.java:2305)
at android.support.v4.media.session.MediaSessionCompat.setCallback(MediaSessionCompat.java:267)
at android.support.v4.media.session.MediaSessionCompat.setCallback(MediaSessionCompat.java:255)
at com.google.android.gms.internal.zzxe.zzcb(Unknown Source)
at com.google.android.gms.cast.framework.CastSession.zzbV(Unknown Source)
at com.google.android.gms.cast.framework.CastSession.zza(Unknown Source)
at com.google.android.gms.cast.framework.CastSession$zzb.zzbV(Unknown Source)
at com.google.android.gms.cast.framework.zzf$zza.onTransact(Unknown Source)
at android.os.Binder.transact(Binder.java:499)
at zt.a(:com.google.android.gms.DynamiteModulesC:199)
at zj.a(:com.google.android.gms.DynamiteModulesC:128)
at zy.onTransact(:com.google.android.gms.DynamiteModulesC:122)
at android.os.Binder.transact(Binder.java:499)
at com.google.android.gms.cast.framework.zzh$zza$zza.zzb(Unknown Source)
at com.google.android.gms.cast.framework.CastSession.end(Unknown Source)
at com.google.android.gms.cast.framework.Session$zza.end(Unknown Source)
at com.google.android.gms.cast.framework.zzq$zza.onTransact(Unknown Source)
at android.os.Binder.transact(Binder.java:499)
at aba.a(:com.google.android.gms.DynamiteModulesC:216)
at abi.a(:com.google.android.gms.DynamiteModulesC:305)
at ace.a(:com.google.android.gms.DynamiteModulesC:61)
at acb.onTransact(:com.google.android.gms.DynamiteModulesC:144)
at android.os.Binder.transact(Binder.java:499)
at com.google.android.gms.internal.zzwv$zza$zza.zza(Unknown Source)
at com.google.android.gms.internal.zzwy.onRouteUnselected(Unknown Source)
at android.support.v7.media.MediaRouter$GlobalMediaRouter$CallbackHandler.invokeCallback(MediaRouter.java:2900)
at android.support.v7.media.MediaRouter$GlobalMediaRouter$CallbackHandler.handleMessage(MediaRouter.java:2847)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

pf...@gmail.com <pf...@gmail.com> #13May 5, 2011 08:22PM

I have tried com.android.support:mediarouter-v7:25.0.1 and com.android.support:mediarouter-v7:25.1.0 both are crashing

ke...@gmail.com <ke...@gmail.com> #14May 6, 2011 08:52AM

I am using compile 'com.android.support:mediarouter-v7:25.1.0'
compile 'com.google.android.gms:play-services-cast-framework:10.0.1' and still crashing

bi...@gmail.com <bi...@gmail.com> #15May 27, 2011 06:58PM

Is there a work-around for this issue until the next version of the support library is released?

bi...@gmail.com <bi...@gmail.com> #16May 27, 2011 07:00PM

For the past year at least this same has been happening to me as well. I have had my Nexus One since January 2010.

It seems to get have gotten worse lately. It use to be that if I rebooted, then dragging and dropping a shortcut would work properly for a while and then after the system had been running a while, the problem would occur. Now, the problem happens immediately after a reboot even.

I am currently running Android 2.3.4. Still same problem.

ru...@gmail.com <ru...@gmail.com> #17Jul 23, 2011 01:06AM

I've built the support library with the fix myself, works fine

ru...@gmail.com <ru...@gmail.com> #18Jul 23, 2011 01:11AM

In addition to reverting mediarouter back to 25.0.1, I also needed to revert appcompat-v7:25.0.1

The crash has gone away now.

kr...@gmail.com <kr...@gmail.com> #19Jul 23, 2011 04:10AM

[Comment deleted]

bh...@gmail.com <bh...@gmail.com> #20Sep 29, 2011 05:45PM

What is the solution for the interim? This is really annoying!

sa...@google.com <sa...@google.com> #21Apr 24, 2020 12:54PM

Status: Won't Fix (Obsolete)