HTML asset not displayed in webview android 7 and above

[akash2386]

Hi to all developers,

In my last question (https://groups.google.com/forum/#!category-topic/mitappinventortest/emulator/TrvENV_UN9w ) I had tried the Taifun Html read apk in above android 7 version it was running.

But my question is that my DOL starter apk(https://play.google.com/store/apps/details?id=appinventor.ai_akash_kumar_mandal.DOLStarter&hl=en_IN) is running in android 6.X version but not running or html as asset loading problem exist in above android 7.X.. 

please guide me.

[Taifun]

are you saying, the example project  https://puravidaapps.com/snippets.php#2htmlread  is not running on Android 7+?

can you elaborate?

Taifun

[akash2386]

@Taifun
Your htmlread apk is running in android7+.

I am discussing about my apk.it will running in android6. But not running in android 7+.

HTML asset not loading in android 7+

[Taifun]

how did you upload the assets?

can you provide the html source code of DOL.html?

Taifun

[akash2386]

@Taifun

Thanking for kind response 

I attached the DOL1.html. please find attachment.

[TimAI2]

Tested your html file in a simple compiled app as per Taifun's example on Nexus 6 Android 7.0 (genymotion emulator)

html displays fine (could do with some css/html code to resize table to fit window/screen) 

[akash2386]

Thank you ...but when I installed in android 7 and above version HTML was not displaying...

Ya...I will think for CSS..

[Evan Patton]

I believe that asset names should be case sensitive. In your blocks code you show DOL.html but the file is dol1.html. If you make the case all the same does it resolve the issue?

Regards,

Evan

[akash2386]

Thanks @Evan

Actually I upload dol1.HTML for sample for my actually code.

The apk is supporting in android 6 but not working in android 7 and above versions...

[akash2386]

Output is coming like when I checked in android 8

[Taifun]

Please prepare an example as small as possible, which demonstrates this issue and add the project (aia file) into this thread 
how should the result look like? how does it look instead? you might want to provide some screenshots...

Taifun

---

Trying to push the limits of App Inventor! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun. 

[akash2386]

https://goo.gl/33inqP


Designed DOL starter Sizing calculator app.please click in above Google play store link to download☝

[akash2386]

@taifun

Attached screenshoot of the output of apk.

[TimAI2]

Please provide aia file of your app on Google Play here.

[akash2386]

@@TimAI2 

I attached DOLStarter.aia 

Please Check....

Thank You

[TimAI2]

OK, after some extensive testing, timing/single screen/urls/builds,  this appears to be a "GooglePlay" (API26) build bug.

If the app is built using Legacy, then the webviewer works for normal urls and asset files.

If the app is built for GooglePlay (API 26) then the webviewer will not display either.

Testing done on Nexus 6 API 24 (Android 7.0) Genymotion emulator

Assigned to MIT

~~~~~~~~~~~~~~~~~~~~

If you want to continue with app, for now suggest you replicate your DOL.html javascript in blocks, shouldn't take too long ....

[Evan Patton]

So I tested this as well. The problem is not the HTML, that works fine, the problem is in the layout. CalculationSheet has its Scrollable property set to true, and with the WebViewer height set to FillParent, it ends up being 0 height. If I disable the scrollable property, it gets the (roughly) appropriate height and you can see the form. It is likely therefore that an API change in SDK 24 broke how the fill parent gets computed in a scrollable view group. It might take some time for us to track this down and come up with a working solution.

Cheers,

Evan

[Evan Patton]

Now being tracked as issue #1344.

Evan

[TimAI2]

Thanks Evan

Missed that one in my "extensive testing" ;)

[akash2386]

@Evan thanks
Can you tell in detail please

[TimAI2]

Try the attached aia.

As Evan says the problem was with the scrollable screens.

I have updated your aia to provide vertical scrolling arrangements instead, and this works for your html page.

I also changed your screen switching method on Calculation Sheet to prevent memory crash

Let us know how it works for you

[akash2386]

thanks alot...

i will check and update you soon

[akash2386]

Still same problem...

[TimAI2]

Sorry, forgot to test as a compiled app :(

[TimAI2]

My memory! (why i have to write everything down!)

I did test a compiled version previously, but obviously not working for you.

Had another go, allowing the webviewer to do any scrolling needed.

This works as a compiled app (Google Play) for me

Let me know how you get on.

[akash2386]

Thanks TimAI2

It is working in android 7.

[TimAI2]

:)