using finger to fast swipe may cause exception

[xalexchen]

yes,i try to help u find out the #4 ,but i found another bugs here when i using finger to fast swipe the item.may cause the following exception

09-24 17:25:52.765 25820-25820/de.timroes.android.listviewdemo W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x40bb7300) 09-24 17:25:52.765 25820-25820/de.timroes.android.listviewdemo E/AndroidRuntime﹕ FATAL EXCEPTION: main java.lang.IndexOutOfBoundsException: Invalid index 26, size is 21 at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251) at java.util.ArrayList.get(ArrayList.java:304) at de.timroes.android.listviewdemo.MainActivity$EnhancedListAdapter.getItem(MainActivity.java:312) at de.timroes.android.listviewdemo.MainActivity$4.onDismiss(MainActivity.java:127) at de.timroes.android.listview.EnhancedListView$3.onAnimationEnd(EnhancedListView.java:745) at com.nineoldandroids.animation.ValueAnimator.endAnimation(ValueAnimator.java:1034) at com.nineoldandroids.animation.ValueAnimator.access$900(ValueAnimator.java:43) at com.nineoldandroids.animation.ValueAnimator$AnimationHandler.handleMessage(ValueAnimator.java:669) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4931) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:558) at dalvik.system.NativeStart.main(Native Method)

[timroes]

Could you tell me what device you are using and what android version? Anyway how fast I swipe and which order, I am unable to reproduce that :(

[xalexchen]

order: from left to right Devices:Samsung Galaxy Tab 10.1 GT-P7500 ROM: CM-10-20130725-UNOFFICIAL-p4 Android 4.1.2

hope can help u , i can easy to make this happen.just fast swipe one by one (near by item)

xalexchen

From: Tim Roes Date: 2013-09-24 17:34 To: timroes/EnhancedListView CC: Alex.Chen Subject: Re: [EnhancedListView] using finger to fast swipe may cause exception (#7) Could you tell me what device you are using and what android version? Anyway how fast I swipe and which order, I am unable to reproduce that :( — Reply to this email directly or view it on GitHub.

[timroes]

Thanks I hope that will help to reproduce that bug (at least I know someone with that device :D). If you downloaded the app from Google Play, and can cause this again, it would be very kind, if you could send an error report via Google Play. Thanks again for your help!

[xalexchen]

:D you are welcome. and i just download it from Google Play and make a crush ,the report already send to google .

xalexchen

From: Tim Roes Date: 2013-09-24 17:50 To: timroes/EnhancedListView CC: Alex.Chen Subject: Re: [EnhancedListView] using finger to fast swipe may cause exception (#7) Thanks I hope that will help to reproduce that bug (at least I know someone with that device :D). If you downloaded the app from Google Play, and can cause this again, it would be very kind, if you could send an error report via Google Play. Thanks again for your help! — Reply to this email directly or view it on GitHub.

[timroes]

I've just published an update to the demo app in the play store. Could you check if this error still persists. I have a feeling, that it might be linked to the fixed bug with too fast swiping. If it's not fixed please tell me, I will then need to find someone with a device, that I can use to reproduce this.

[timroes]

BTW Google Play needs some time to update the APK. So you would need to make sure its version 0.1.1 installed, when testing :)

[timroes]

Unfortunately the bug still persist. I haven't been able to isolate and fix it. But you really have to swipe fast to make it appear, so it shouldn't be something that occurs when users use this in a normal way. I will continue looking for it, but unfortunately I don't have access to a device where I can reproduce it all the time.

[xalexchen]

aha.yep.no one will do that like me :D anyway.it's a great stuff.

xalexchen

From: Tim Roes Date: 2013-09-27 03:20 To: timroes/EnhancedListView CC: Alex.Chen Subject: Re: [EnhancedListView] using finger to fast swipe may cause exception (#7) Unfortunately the bug still persist. I haven't been able to isolate and fix it. But you really have to swipe fast to make it appear, so it shouldn't be something that occurs when users use this in a normal way. I will continue looking for it, but unfortunately I don't have access to a device where I can reproduce it all the time. — Reply to this email directly or view it on GitHub.

[MarcoLizza]

I'm using the library in an application of mine and the same bug occurs. The same bug was present in the older incarnation of the library (prior its name change). I find the issue to be quite annoying.I'm trying to pinpoint it but still wasn't able to do it. However, I'm quite sure its due to the fact that the list/adapter/data indexes changes after an item has been dismissed... so the next dismiss can refer to an invalid item.

As a workaround, should a "single-swipe-at-time" bahaviour could be provided?

Thanks in advance.

[localh0rzd]

I played around with this problem a little bit and found out the following:

• If you manage to focus on a list entry that is below the one being swiped out, the exception is often thrown when you slide this view afterwards
• If you swipe the remaining view a bit (not far enough to trigger onDismiss) and press undo while the view is sliding back, the content of the view sliding back remains untouched:

before	after
1	2
2	2

It seems that this issue has to do something with the views of the list not being updated fast enough and hence reference the not longer valid index.