Offline map flickering

Topic: Offline map flickering (Read 1070 times) previous topic - next topic

Offline map flickering

June 23, 2022, 11:20:54 PM

Hi!
So I have downloaded offline maps and when I am using an offline map it flickers everytime I scroll across the map. The map goes blank for 5-10 sometimes 30 seconds then comes back. Does not matter how close or far I am zoomed or if I'm panning 15 ft. Or 15 miles. Goes blank...
Wait..then comes back. Any ideas?

Re: Offline map flickering

Reply #1 – June 24, 2022, 07:25:31 AM

A video would greatly help. This is not normal or reported before.

Does this happen with Google maps? Is the behavior seen with maps of offline lists or just the Live map? If just Live, do you have auto refresh on? If Live, are there lots of caches within the map boundaries? Does this happen when you first open the app or later after using it awhile? What offline map source are you using? Is there a theme on for the map?

The more information I have the better I can help determine what the issue is.

Re: Offline map flickering

Reply #2 – July 06, 2022, 08:13:41 PM

I am using mapsforge happens anytime I use offline maps. Attaching video

Re: Offline map flickering

Reply #3 – July 06, 2022, 09:20:38 PM

Geooh uses software from Mapsforge for offline maps so I don't have control of how it renders. How does c:geo look with the same maps and theme? How does Google maps work?

Re: Offline map flickering

Reply #4 – July 06, 2022, 09:34:57 PM

Works fine on c:geo oddly enough if I use the maps downloaded from cgeo the flickering stops not sure what source cgeo uses but I'll just use those maps

Re: Offline map flickering

Reply #5 – July 06, 2022, 10:02:48 PM

Are you using the same exact map files and theme in both apps? Geooh and c:geo use Mapsforge software.

How did Google maps work?

Re: Offline map flickering

Reply #6 – July 06, 2022, 10:09:00 PM

Google maps works fine no issues with any other map. I am using the same exact files for geooh that I had previously downloaded for cgeo just changed the alt map directory to the cgeo folder. Unfortunately however I just opened the app again a moment ago and it's back to doing the same flickering again as it showed in the video I sent 🙃

Re: Offline map flickering

Reply #7 – July 07, 2022, 08:53:13 AM

Can you send me the map file and theme file both Geooh and c:geo use? Also your Geooh settings exported.

Re: Offline map flickering

Reply #8 – July 07, 2022, 03:15:18 PM

attached is my settings export. the file for the maps is too large to attach here is there another way i can send it to you?

Re: Offline map flickering

Reply #9 – July 07, 2022, 05:27:07 PM

I couldn't replicate the issue.

Try this... point the offline maps directory to another folder (doesn't matter whether there are any maps in it). Restart Geooh and open Live which should be blank maps. Go back into settings and point back to the original maps folder. Restart and try again. This should force the app to clear out the tile cache used by Mapsforge in case somehow bad tiles got in there.

Let me know.

Re: Offline map flickering

Reply #10 – July 07, 2022, 10:42:16 PM

I tried this and didn't work. I did end up fixing it by deleting all the map files off the device. And reinstalling them through cgeo and it appears to be working now. If it starts again I'll let you know. Thanks as always for the quick help!

Re: Offline map flickering

Reply #11 – July 07, 2022, 10:57:04 PM

So they weren't the same map files before? That's why I questioned if they were exact same files. How were the original maps used by Geooh downloaded? What theme are you using in both apps?

Re: Offline map flickering

Reply #12 – July 07, 2022, 11:00:47 PM

When the flickering started I had tried using my old original cgeo maps, and the maps downloaded through geooh I had tried using a 2/3 of the different sources listed in geooh. No theme was used in either app. My only guess is maybe the map data was corrupted? I honestly have no idea.

Re: Offline map flickering

Reply #13 – July 12, 2022, 01:53:48 PM

The issue has returned any ideas?

Re: Offline map flickering

Reply #14 – July 12, 2022, 03:39:03 PM

I can't replicate it. Can you point to the c:geo map directory in Geooh settings to fully confirm you are using the exact same map files?