Android Question How to view 'Wunderground' web pages in Webview

rthyoung26 · Dec 20, 2020

I cannot display any webpages from the weather site Wunderground in a webview. The webpage loads but then switches to a solid white screen. I have tried using chrome client as well but no luck. The sites display properly in PC browsers and in other browsers on android. Sample URLs are:

"https://www.wunderground.com/wundermap"
"https://www.wunderground.com/maps/temperature/us-current"

Any suggestions would be appreciated.

JohnC · Dec 20, 2020

This is a long-shot, but maybe when the screen turns solid white, the webpage actually scrolled out of view?

Things to try:

1) See if the page will scroll into view
2) Try different overview modes
3) Try different zoom views

JohnC · Dec 20, 2020

You may need to use Webviewextras to access the different view/zoom settings.

kisoft · Dec 20, 2020

Add this to your manifest ... maybe it'll help... The pages you entered do not have SSL encryption.

B4X:

SetApplicationAttribute(android:usesCleartextTraffic, "true")

JohnC · Dec 20, 2020

kisoft said:
Add this to your manifest ... maybe it'll help... The pages you entered do not have SSL encryption.

B4X:

SetApplicationAttribute(android:usesCleartextTraffic, "true")

Yes! There could be parts of the page that are not secure, and could screw up the rendering of the page if blocked - never thought of that!

rthyoung26 · Dec 21, 2020

JohnC said:
This is a long-shot, but maybe when the screen turns solid white, the webpage actually scrolled out of view?

Things to try:

1) See if the page will scroll into view
2) Try different overview modes
3) Try different zoom views

Thanks for reply, tried all this, zoom bars are visible but still only white screen after about 1/2 second. Prior to that you can see Wunderground page starting to load

rthyoung26 · Dec 21, 2020

JohnC said:
You may need to use Webviewextras to access the different view/zoom settings.

Thanks. Already have webviewextras2 incorporated, no luck

rthyoung26 · Dec 21, 2020

kisoft said:
Add this to your manifest ... maybe it'll help... The pages you entered do not have SSL encryption.

B4X:

SetApplicationAttribute(android:usesCleartextTraffic, "true")

Thanks but didn't change anything, still just a white page.

rthyoung26 · Dec 21, 2020

kisoft said:
Add this to your manifest ... maybe it'll help... The pages you entered do not have SSL encryption.

B4X:

SetApplicationAttribute(android:usesCleartextTraffic, "true")

Thanks - but still the same, just white page

kisoft · Dec 21, 2020

Clear the project (ctrl + p) and run in release mode..

Android Question How to view 'Wunderground' web pages in Webview

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