Dalvik Cache? - General Questions and Answers

Based on my reading... Dalvik cache is like prefetch files on windows... correct?
I was just wondering, if i have been playing around with, but not keeping, quite a few apps, is it a good idea to clear this out? Will it wipe any important data?? Im on 4.0.4, samsung stock but rooted rom (this one : http://forum.xda-developers.com/showthread.php?t=1994902 pure stock version)
Ive been having issues with apps freezing up my phone that used to have no issue at all, and im just hoping maybe i can help things along.

Pawprints1986 said:
Based on my reading... Dalvik cache is like prefetch files on windows... correct?
I was just wondering, if i have been playing around with, but not keeping, quite a few apps, is it a good idea to clear this out? Will it wipe any important data?? Im on 4.0.4, samsung stock but rooted rom (this one : http://forum.xda-developers.com/showthread.php?t=1994902 pure stock version)
Ive been having issues with apps freezing up my phone that used to have no issue at all, and im just hoping maybe i can help things along.
Click to expand...
Click to collapse
it's good to wipe it form time to time
don't worry ...if you wiped the cache and dalvick cache nothing will happen and you will not lose any data

Related

[Q] My browser just closes on its on everytime on my Gtablet PLEASE HELP!!

im running Tnt lite 4.2.4 everything work fine except when i use the internet it only lets me use sites like facebook and youtube but when i try to got on anyother website it just closes without even saying force close its super annoying someone please help me thanks.
I use 4.2.4 and it's solid as a rock.
What was your install/upgrade process? Did you wipe your data and clear cache before moving from your latest/current ROM?
When doing any major ROM switching, even between say, TnT Lite 3.x to 4.x, it is always recommended that you wipe all user data and clear cache. This is unnecessary for supplemental/addon updates.
If you did not do that, then I would hazard a bet that something got left over in the system from the last ROM you came from and is now causing this problem with your current setup.
You can try just wiping cache and dalvik in CWM to see if that fixes it since it's essentially just your browser, right? If that doesn't work then I'd just go ahead and backup what you can and do a data wipe aka factory reset.
Good Luck.
it may be just your browser. you could try dolphin hd or xscope. if they work, then it's the other browser. Or you could use Titanium Backup then wipe data for the browser.
Neoprimal said:
I use 4.2.4 and it's solid as a rock.
What was your install/upgrade process? Did you wipe your data and clear cache before moving from your latest/current ROM?
When doing any major ROM switching, even between say, TnT Lite 3.x to 4.x, it is always recommended that you wipe all user data and clear cache. This is unnecessary for supplemental/addon updates.
If you did not do that, then I would hazard a bet that something got left over in the system from the last ROM you came from and is now causing this problem with your current setup.
You can try just wiping cache and dalvik in CWM to see if that fixes it since it's essentially just your browser, right? If that doesn't work then I'd just go ahead and backup what you can and do a data wipe aka factory reset.
Good Luck.
Click to expand...
Click to collapse
well i installed the tnt lite 2.x first and then i just jumped all the way to 4.2.4, i honestly never really used titanioum backup when doing the updates. maybe i should have now that i think about it, but the only thing that doesnt work is browsing the web it sucks and i did try to use other browser but still the same problem. when you say do a factory reset do you mean the one off of clockwork with the 2048 whatever thing or the factory reset in the settings menu?

[Q] Do I need to wipe data if I'm upgrading the same ROM?

I am relatively new to flashing ROMs & kernels for Android. Currently I'm using MIUI 1.5.6 and would like to upgrade to the newest version of 1.5.13.
My question is, do I have to wipe data if I'm just upgrading to the same ROM or would wiping cahce & Dalvik cache be sufficient?
Before anyone flaming me I have searched the forum prior to posting and surprisingly didn't find anything useful as I thought this would be a frequently asked question.
Thanks in advance!
I never clear if i'm gonna do the same rom and it seems to work perfect. So I'd say dont it takes less time but if your worried do it. clearing that stuff wont really loose anything so its your choice really
I think you ALWAYS should do a backup, just in case something goes wrong.
You have the device at the Computer, you have the cable hooked up.
What would it take... about 5 minutes to do the backup up ??
oddball69 is right. You should always do a wipe.
Just to avoid problems
Most of the Devs will specify for each version if a full wipe is not required. If you can't find anything about it then do a full wipe.
If they directly say a wipe is not required then it's probably just some small fixes.
Thanks for all the responses.
I was going to do a backup for sure I just wanted to avoid having to wipe everything and then reinstalling and re-setting up all my apps which could be quite a pain
Depends on the ROMs used, usually the developers state if this is necessary.
It wont hurt if you try without wiping, if it makes problem just wipe and do it again.
What is there to loose?

Any help will be greatly appreciated

Please bear with me i'm a noob.
I got my G2x with stock rom 2.2 Froyo and then rooted and flashed it without updating it to Gingerbread... I,ve tried CM7, Weapon, and now on Eaglesblood. None of them would let me use voice search without crashing..it will recognize what i say but as soon as i pick a selection from the list it force closes.. and some of the phone settings i try to access will also crash on me.
Is this because i've never updated my phone to GB before root/flash? Was i supposed to? I actually tried updating it with LG updater after root/flash (weapon at the time) and bricked it.. so im not going thru that again.
Thanks in advance!
Sent from my LG-P999 using XDA App
Well for voice search... Have you tried uninstalling it and reinstalling it?
As for the rest of the phone, maybe a cache and dalvik cache wipe?
I'm not trying to patronize you, but you have stated that you are new to this, so I'm going to ask the following.
Between flashing new ROMs, did you:
Perform factory reset.
Wipe the dalvik cache.
Wipe cache.
Format /system.
This is not something you need to do everytime (Like when upgrading from one version of CM7 to the next), but is recommended (Especially going from the broad range of ROMs you went through).
If you haven't done the following, I recommend doing that first, then coming back should you still need to troubleshoot. MANY issues can be fixed simply by starting with a clean slate.
Yes, i have factory reset, wiped cache n dalvik, and formatted system between flashes. Im going to try reinstalling it now.
Sent from my LG-P999 using XDA App
Voice search works on my 2.3.4 roms. They are not anything special, but lean, fast and stable.
Regular: http://forum.xda-developers.com/showthread.php?t=1325403
Colorized: http://forum.xda-developers.com/showthread.php?t=1334819
So... I just tried reinstalling voice search to no avail. I uninstalled it first and then booted into recovery to wipe cache and dalvik. Now, what I noticed was that when I select wipe dalvik cache, it gives error log "E:unknown volum for path [/sd-ext]." but when I press Yes to confirm the wipe, it says "dalvik cache wiped." I'm not sure if it's really wiping dalvik or not... Well, I installed voice search again and it still force closed.
jboxer said:
Voice search works on my 2.3.4 roms. They are not anything special, but lean, fast and stable.
Regular: http://forum.xda-developers.com/showthread.php?t=1325403
Colorized: http://forum.xda-developers.com/showthread.php?t=1334819
Click to expand...
Click to collapse
I will try out your rom!
People actually use voice search? I used to try but i always found it was faster to just type because it never knows what im saying.
dokjon said:
So... I just tried reinstalling voice search to no avail. I uninstalled it first and then booted into recovery to wipe cache and dalvik. Now, what I noticed was that when I select wipe dalvik cache, it gives error log "E:unknown volum for path [/sd-ext]." but when I press Yes to confirm the wipe, it says "dalvik cache wiped." I'm not sure if it's really wiping dalvik or not... Well, I installed voice search again and it still force closed.
Click to expand...
Click to collapse
The dalvik cache wipe is working, it will always say that unless you've wiped your SD card with CWM. Since there shouldn't be a need to, it's not a problem and shouldn't be a factor in your situation.
Joe333x said:
People actually use voice search? I used to try but i always found it was faster to just type because it never knows what im saying.
Click to expand...
Click to collapse
I would like to use it when I'm driving around.. and it's annoying to knowingly keep a feature of phone that won't work
dokjon said:
I would like to use it when I'm driving around.. and it's annoying to knowingly keep a feature of phone that won't work
Click to expand...
Click to collapse
It actually works amazingly well now. It is almost eery how accurate it is.

[Q] Galaxy Tab Crash

Hi everyone
My tab crashed recently so every single app was forceclosing. Even those in hubs.I had to reinatall all of them.
It seemed like it reset itself. Is that a lnown phenomenon. And do I have to hard reset it or flash it .
Everything works a bit wierdly now.
Samsung Galaxy 8.9 rooted.
Thanks in advance
d.lavaman said:
Hi everyone
My tab crashed recently so every single app was forceclosing. Even those in hubs.I had to reinatall all of them.
It seemed like it reset itself. Is that a lnown phenomenon. And do I have to hard reset it or flash it .
Everything works a bit wierdly now.
Samsung Galaxy 8.9 rooted.
Thanks in advance
Click to expand...
Click to collapse
Most likely it's because of something you did incorrectly.
-Are you using stock firmware or custom ROM? which build?
-what kernel did you use ( How did you root your G-Tab)?
-Did you play around with Titanium Backup or Gemini App Manager (Did you
freeze/block/disable autorun/uninstall any app that you thought it's not important)?
-You mention re-install them after crashing. After you re-install them, did the problem stop for those particular apps?
If you mess around with your system apps using some app manager, then you have to figure out what you did to which app (process) to break it - otherwise, YES you need to flash or do a recovery.
If you didn't mess around with your system apps and it's just happened after you root your G-tab, then YES, please do a factory reset wipe on recovery mode and see if it solves the problem, before you consult to the kernel developer. You may have installed an incompatible root script or kernel to your ROM/firmware.
If re-installing the apps solves the problem, then why not re-install them? It probably is the easiest solution.
Wipe:
- Dalvik Cache (app-cache?)
- Cache (app-specific settings?)
- Data/Factory Reset (everything that wasn't on the device to start with)
From Recovery either one at a time, or all of them if you don't mind loosing everything.
espionage724 said:
Wipe:
- Dalvik Cache (app-cache?)
- Cache (app-specific settings?)
- Data/Factory Reset (everything that wasn't on the device to start with)
From Recovery either one at a time, or all of them if you don't mind loosing everything.
Click to expand...
Click to collapse
Same with this, i get fc all my app, and wipe data chace and dalvik and my hh back to normal, but my all apps is gone, i forget to backup...
Sent from my GT-P1000 using xda premium

Music Apps Crash and Burn

I'm having a little issue. Yesterday I flashed CM10 and had everything set up and all was good. I listened to music without a problem. This morning, on my way to school, I was using poweramp (as I do on a daily basis) to listen to music. After class, i decided to run poweramp and i noted that it would attempt to open but then i would get kicked back to my home screen. So i decided to use Apollo (which im not much of a fan of but I was glad I kept it). I came home and I immediately Got rid of CM10 and went with Stock based ROM. installed everything as usual but I'm still having the same problem. This time, I uninstalled the app (cleared data and cache), rebooted, installed again and the same thing was happening. So i decided to download another popular music app (player pro) and it was doing the same thing. Can I get some tips on what the Issue may be please? I have uploaded images of both of the apps stalling before I was kicked back to my home screen. And I also did a logcat. Any information will be greatly appreciated.
Note: The link is to download the Logcat since its bigger than the XDA limit.
https://www.sugarsync.com/pf/D7494107_816_608169390
If you did a "dirty" flash when switching your ROM (that is, only wiping cache and Davlik cache) then you might want to try a "clean" flash. There's some disagreement about what a "clean" flash is; but, it at least includes a factory reset/data wipe.
I will do a factory reset/data wipe, and a cache wipe, and a Dalvik wipe when switching ROMs. It doesn't take that long, so why not just do everything.
Of course, make sure you back up everything first -- the factory reset will completely erase all of your apps and settings.
mcavoya said:
If you did a "dirty" flash when switching your ROM (that is, only wiping cache and Davlik cache) then you might want to try a "clean" flash. There's some disagreement about what a "clean" flash is; but, it at least includes a factory reset/data wipe.
I will do a factory reset/data wipe, and a cache wipe, and a Dalvik wipe when switching ROMs. It doesn't take that long, so why not just do everything.
Of course, make sure you back up everything first -- the factory reset will completely erase all of your apps and settings.
Click to expand...
Click to collapse
I've done that. I only dirty flash ROM updates. When I go from ROM to ROM, my habbit it wiping data twice, wiping dalvik twice, wiping cache twice and formatting system twice.
I Spent 2 hours getting this ROM set up yesterday and installed all of my mods. Guess I'll have to switch. Thanks for the reply

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