Hi Shiliu,

First of all thanks for support!

It was very interesting to hear that you have tested and got it to work.
But unfortunately I cannot make it to work...

I checked the XWalkCoreShell source code and could not find any major
difference vs. my implementation.
So I tried to run your code but it crashes when I test with 4 tabs.

So what did I do?
added:
- mViewPager.setOffscreenPageLimit(4);
- added two more mActionBar tabs

tested with urls:
- http://google.com
- http://expressen.se
- http://aftonbladet.se
- http://jayway.com

parts from log:
below is repeated several times and finally a crash.
08-28 18:16:44.684  26416-26544/org.xwalk.core.xwview.shell E/qdmemalloc﹕
ion: Failed to map memory in the client: Out of memory
08-28 18:16:44.684  26416-26544/org.xwalk.core.xwview.shell E/qdgralloc﹕
Could not mmap handle 0x82735700, fd=413 (Out of memory)
08-28 18:16:44.684  26416-26544/org.xwalk.core.xwview.shell E/qdgralloc﹕
gralloc_register_buffer: gralloc_map failed
08-28 18:16:44.684  26416-26544/org.xwalk.core.xwview.shell
W/GraphicBufferMapper﹕ registerBuffer(0x82735700) failed -12 (Out of memory)
08-28 18:16:44.684  26416-26544/org.xwalk.core.xwview.shell
E/GraphicBuffer﹕ unflatten: registerBuffer failed: Out of memory (-12)
08-28 18:16:44.684  26416-26544/org.xwalk.core.xwview.shell
W/Adreno-EGLSUB﹕ <SyncBackBuffer:3233>: handle base address is NULL
08-28 18:16:44.684  26416-26544/org.xwalk.core.xwview.shell W/Adreno-ES20﹕
<core_glFlush:52>: GL_OUT_OF_MEMORY
08-28 18:16:44.684  26416-26544/org.xwalk.core.xwview.shell
W/Adreno-EGLSUB﹕ <SyncBackBuffer:3233>: handle base address is NULL
08-28 18:16:44.684  26416-26544/org.xwalk.core.xwview.shell W/Adreno-EGL﹕
<qeglDrvAPI_eglSwapBuffers:3692>: EGL_BAD_ALLOC
...
08-28 18:17:09.094  26416-26989/org.xwalk.core.xwview.shell W/Adreno-GSL﹕
<sharedmem_gpumem_alloc_id:1434>: sharedmem_gpumem_alloc: mmap failed
errno 12 Out of memory
08-28 18:17:09.094  26416-26989/org.xwalk.core.xwview.shell E/Adreno-GSL﹕
<ioctl_kgsl_sharedmem_alloc:1535>: ioctl_kgsl_sharedmem_alloc: FATAL ERROR
: (null)

Br
Stefan







2014-08-27 8:12 GMT+02:00 Wang, Shiliu <[email protected]>:

>  Hi, Stefan
>
>
>
> Actually, XWalkCoreShell is using ViewPager to contain two XWalkView
> instances. You can get it in test_apks package from
> https://download.01.org/crosswalk/releases/crosswalk/android. I’ve been
> trying to reproduce the issue you described on XWalkCoreShell (extends tab
> count to 4 locally), it doesn’t appear.
>
>
>
> Basically, behavior will be quite different depends how you implement your
> pageAdapter, especially the part how you reuse the fragment. For xwalkView
> cases, suggestion is to never reuse Fragment. And to keep it from being
> destroyed and re-created all the time, I suggest to call
> mViewPager.setOffscreenPageLimit(4) in your case.
>
>
>
> Thanks,
>
> Shiliu.
>
>
>
> *From:* Crosswalk-help [mailto:
> [email protected]] *On Behalf Of *Stefan
> Persson
> *Sent:* Wednesday, August 27, 2014 3:46 AM
> *To:* [email protected]
> *Subject:* [Crosswalk-help] Embedding XWalkView in FragmentPagerAdapter
>
>
>
> Hi,
>
>
>
> In a project I am working in there is a requirement to have a ViewPager
> with FragmentPagerAdapter having 4 pages. Each page (fragment with one
> XWalkView instance / fragment) load different urls where the webpage is
> build using angular.
>
>
>
> Problem I have is that very often content from an other page then the one
> that is selected is showing up when I change pages.
>
> (When having selected page #2 the view from page #3 is visible)
>
>
>
> When I replace XViewView with build in ChromeClient in Android 4.4 it
> works perfectly.
>
> I have verified that the correct fragment and correct url is loaded for
> each page.
>
>
>
> I wonder if anyone have tried to do similar solution as me and if it is
> supported?
>
> If any one could give me some ideas on what to try out to get it to work?
>
>
>
> using crosswalk-webview-8.37.189.2-arm
>
> Tested on Nexus 5 and Samsung S3 with same result.
>
>
>
> Br
>
> Stefan
>
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