General :: Difference Between Dalvik And Normal Cache

May 6, 2013

What is Davik Cache and what is normal Cache?

Are they the same thing or 2 different cache that must be wiped when flashing roms?

General :: Difference between Dalvik and Normal Cache


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General :: Disable Moving Of System Dalvik Cache To /cache?

Aug 16, 2012

In cm roms, dalvik cache of system apps are generated in /cache but those data/apps are generated in /data. Is there any way to disable this behaviour? Cache partition in our phones is too small. In AOSP and AOKP and stock roms, dalvik cache is always generated in /data no matter whether its a system app. any way to achieve this in cm roms?

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General :: Can't Wipe Dalvik Cache

Jun 19, 2012

I was flashing CM9 from CM7 on my Motorola Defy, botched it up intially due to a slip of my finger which led to me to Clear the cache first. But then I restarted the entire process by Clearing Data -> Installing -> Flashing Kernel and so on...

But when I tried to clear the Dalvik Cache, the phone didn't delete it. It didn't give me a message that it wiped the cache, but it didn't say otherwise either. This led me to believe that the cache just didn't exist anymore.

As a result, I'm unable to install apps - Says there is no memory and I need to make more. Also, everytime the phone comes on is treated as the first time. It takes me through the whole process of Setting up an account and everything. This has rendered my phone obsolete.

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General :: CWM Can't Wipe Dalvik Cache

Apr 9, 2012

I was just flashing a new ROM for my gio, and made sure that i did a factory reset, wiped cache partition and wipe dalvik cache. but when i went to wipe the dalvik, CWM froze for a bit, then showed the yes/no part for like half a second, then kicked me back to the main menu. It does this every time. What to do? or should i just reflash it?

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General :: Can Dalvik-cache Size Be Limited?

May 15, 2012

I am wondering if it is possible to limit the size of the dalvik-cache. I am looking for an alternative to putting it on the sdcard. Maybe I could create a partition on the internal storage for the cache?

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General :: Dalvik-cache To SD (only) On Rooted Stock Rom?

Apr 3, 2012

how to dalvik-cache to sd (only) on a rooted stock rom?

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General :: Dalvik Cache Moving (Alcatel One Touch OT-990)

Apr 18, 2012

how can i move Dalvik cache on SD card or on my partition on SD for apps? I heard for a2sd but also heard that this app isn't comptabile for my phone.

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General :: How To Move Dalvik Cache And Data To SD Card / Ext2

Apr 13, 2012

How can I move dalvik-cache and data/data to sd card or sd ext2?

HTC Explorer A310e

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General :: Disable Auto Dalvik-cache Generation Or Android Is Upgrading In ICS?

Jul 13, 2012

It looks like ics automatically runs the "Android is Upgrading" thing whenever it senses some "change" in boot.img? It happens everytime i flash a kernel, without wiping dalvik cache. It will continue to run regardless of whether the dalvik cache files are present or not. This is actually a good feature.

But i noticed that if i simply do a nandroid backup of /boot, and restore it without doing anything else, or flash the same kernel again, it will boot up with the "Android is Upgrading" thing again from the start.

is there a way to disable this, or at least prevent dalvik cache generation if they are already present? im using amon Ra recovery

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HTC Eris :: Dalvik Cache

Sep 26, 2010

Why are there two of them on the phone? In the root I have.../cache/dalvik-cache/ and /data/dalvik-cache/ Which one gets wiped when you do a wipe in Amon's?

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HTC Eris :: What Is Dalvik Cache

May 9, 2010

What exactly is the Dalvik Cache and when do I need to clear it? Is it something that should be done when you replace one rom with another or is a data wipe all you need to do? Any clarity on what a Dalvik cache is would be greatly appreciated. I just want to know the basics of what it is and when I do or do not need to use it.

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HTC Droid Eris :: Difference Between Normal And WiFi Tethering?

Jun 13, 2010

Hey, can someone explain to me what exactly is WiFi tethering and the diff b/w normal tethering? I kind of have a general idea, but I want to be sure.

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Android :: Multicast Permission Of Dalvik And How To Attach To Dalvik Env

Sep 16, 2009

1. I have a c lib which will send & receive multicast package, if I lauch it in native ap, everything is OK, but if lauched through jni ,so it run in dalvik env, it can not receive multicast, i think is may be disabled by dalvik, is there any permission can enable this feature?

2. In this lib i will make some callback of function in dalvik class. according to tranditional method which can run under JDK1.5 & 1.6 as follow: (I make it under source code env not NDK)

In some initialization method save jvm pointer

CODE:...........

it seems AttachCurrentThread not failed but env not correct.

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Android :: Dynamically Generating Dalvik Bytecode Into A Running Dalvik/Android Application

Apr 9, 2010

This question has been asked(and answered) many times about dynamically generating and loading java bytecodes at runtime into a running Dalvik VM, but is there any way to load dex files/bytecodes into an app at runtime?

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Android :: Normal Maps Vs Normal Coordinates

Jul 10, 2010

I'm currently working with OpenGL ES 1.1 and using the DrawElements convention along with Vertex, Normal, Texture Coordinate, and Index arrays.

I recently came across this while researching the idea of using Normal/Bump mapping which I previously though impossible with OpenGL ES: http://iphone-3d-programming.labs.oreilly.com/ch08.html

I can generate an object-apace normal map already from my 3D modeler, but what I'm not completely clear on is whether or not the Normal coordinates array will be necessary any longer if implementing a 2nd texture unit for normal mapping, or will Lighting + Color Texture Combined with a Normal map via the DOT3_RGB option be all that is required?

EDIT - After researching DOT3 Lighting a bit further, I'm not sure if the answer given by ognian is correct. This page, [url] gives an example of it's usage and if you look at the "Rendering & Final Result" section bit of code, there is no normal array ClientState for Normal Arrays is never enabled.

I also found this post here,[url] which explains it well... but leads me to another question. In the comments, it's stated that instead of translation of normals, you translate light direction. I'm confused about this as if I have a game with a stationary wall... why would I move the light around just for one model? Hoping someone can give a good explanation of all of this...

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General :: TWRP Can't Mount Dalvik / Data

Apr 22, 2014

My mom has an Asus TF300T running JB 4.2.1. She tried to root and flash OmniROM by herself and borked it somehow. Unfortunately, she didn't do any backup...

She entered the fastboot screen and there she selected wipe. Then she flashed openrecovery-twrp-2.6.3.0-tf300tg-JB.blob using fastboot.

It's operational, the OS loads up fine and she can use it, install apps etc.

I can get to the fastboot screen and from there to the TWRP no problem, but TWRP can't mount anything besides system. No dalvik partition, no data partition, not even the SD or external SD.Naturally, I can't flash another rom...

Tried executing "fix permissions" from the TWRP menu, it didn't work.

Downloaded the latest official Asus blob file TF300T-US_epad-10_6_1_27_5-UpdateLauncher.zip and flashed it using fastboot, hoping it will restore the missing partitions but it didn't make any difference.

Also tried CWM - same issue.

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General :: Modify With APKTool App - Block In Dalvik

Jan 31, 2012

my friends mods and give me an app that he had blocked only for my imei code and date control..i have modify with apk tool the app (the condition control where the app check imei and date) but when i resign the app and install it, when i launch it crash.How i can remove these blocks?

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Android :: Android - Image Cache Stategy And Memory Cache Size

Jun 21, 2010

I'm implementing an image cache system for caching downloaded image.

My strategy is based upon two-level cache:
Memory-level and disk-level.

My class is very similar to the class used in the droidfu project

My downloaded images are put into an hashmap and the Bitmap objet is wrapped inside a SoftRererence object.

Also every image is saved permanently to the disk.
If a requested image is not found into the Hashmap<String,SoftReference<Bitmap>> it will be searched on the disk, readed, and then pushed back into the hashmap. Otherwise the image will be downloaded from the network.

Since I store the images into the phisical device momery, I have added a check for preserve the device space and stay under a 1M of occupied space:

CODE:.................

This method is called sometime afte a disk writing:

CODE:..............

What I'd like to add is the same check on the HashMap size to prevent it will grow too much. Something like this:

CODE:.....................

My question is:
What could be a right MAX_MEMORY_SIZE value? Also, Is it a good approach? A good answer also could be: "Don't do it! SoftReference is already enough"

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General :: How To Get WiFi Back To Normal

Apr 1, 2012

I have a galaxy s2. I tried to send compressed videos via email. Problem is they were still too large and now gmail app isn't working properly. I have done some searching and it looks like my wifi is still trying to send the vids. There are a lot as I tried different compression methods and then resending. I have since deleted the emails which were all 'sending' but still have the problem.

Is there a way for me to get things back to normal? I can't delete the account without deleting all my phones user data as well and I would really like to avoid doing this if possible.

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General :: How To Get Tab Back To Normal Operations

Nov 1, 2013

How to get my tab back to normal operations.After changing fonts it req for restarting and it's just hanging at booting process. Try to recover but it doesn't work. Then i try to use install 86vebc ROM by using CWM v6.0.2.8 and now it's keep on entering CWM again and again even after rebooting.I only able to give the specification as below because i couldn't find the exactly brand or model for my tab.

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General :: Turning Off ZRAM Not Increasing Normal Available RAM?

Mar 19, 2014

I have a Gionee Pioneer P3. It comes with ZRAM enabled by default. That's over 300MB for ZRAM. I'd like to disable this zram so that I will have more RAM. I ran swapoff /dev/block/zram0 to disable zram. It did get disabled as seen in the screenshot above. However, when I run "free" command, I see that the amount of RAM has not increased.

How can I make the zram partition available to normal RAM?

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General :: What Does Wipe Cache Do

May 17, 2012

What is being wiped when we apply "Wipe cache" option from recovery menu? So what does "cache" in the recovery menu refers to? Is doing this useful, without firmware update or wipe data-factory reset?

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General :: Use Normal Email Account To Sign In (Yahoo)?

Jul 19, 2012

Is there any way I can use my normal email acct to sign in(Yahoo)? I want to access my favorite videos from my phone but it can only use a google acct. Should I just re make my favorites under my gmail?

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General :: Nexus S 4G - Resetting Phone Back To Normal OS?

Nov 11, 2012

When I first bought it, I was not happy with the features it was offering so I searched and found out about the CM7(Cyanogenmod 7) mod, and decided that I wanted to try out a modded phone. I've been using CM7 for a few years now and have just plain become unhappy with what they're putting out and decided that I finally wanted my phone back to being normal and rooted. I booted into my clockworkmod(after backing up all apps/data with TitaniumBackup pro & taking pics/vids/etc off through USB) and decided to wipe my sdcard and all other options that Clockworkmod offers. After doing that I realized I made a horrible mistake...every time I go to reboot my phone, it ends up back at the boot menu and at the top it says "Fastboot Mode - No boot or recovery IMG" how would I go about resetting my phone back to a normal OS without being able to transfer stuff onto it without it being booted and having a USB option.

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General :: How To Get Normal Upgrade Test Without Using LG Support Tools

Dec 10, 2013

I want to upgrade lg vu f100s with version 40E I chiose 3gqct and emergency import kdz and then click normal upgrade test, that can not upgrade off line and it reach to lg support tools in upgrading by online downloading, and if I choose launch upgrading if always say (not responding). LG-F100S

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General :: Emulate Android Froyo With Normal Kernel?

Nov 3, 2012

Is there any way to emulate an android froyo with normal kernel and everything a normal android phone has? Including a market and recovery mode. I want this mainly because I feel terrified by the thought that I might brick my phone flashing a custom rom and I am a beginner so I never tried anything complicated with it. So before I try anything over my phone I want to try this on an emulated phone.

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General :: Battery Drains Without Any Normal Or Background Activity

May 18, 2014

Firstly I want to clarify that I am NOT talking about a normal battery drainage caused by background apps, foreground apps, enabled wifi, bluetooth, google background activities, synchronisation, facebook, google location settings, any antivirus app or something of that kind. There are plenty of threads about that and google search is full of this topic. I am talking about something else when it comes to sudden and quick battery drainage.

It already happened to me a couple of times when I use the built in projector of my phone (samsung galaxy beam). So I watch a movie on the projector and it takes let say.. around 30 percent of my battery life. After I turn the projector off, close all foreground and background activities I wait like a minute or 2 and the battery status drops from lets say 28 to 20. This is normal as the battery status somehow needs some time to get "updated". So after every single fore- and background activity is closed and I got 20% battery left I go to bed. Then in the morning I look at my phone and its dead meaning the battery dropped to 0 causing the phone to turn off. And thats not normal for me. (I do hear the sound of very low battery in the early morning meaning it doesnt turn off within 1 hour which would mean faulty battery) First I was thinking that this problem might be caused by previously overheating the battery but I checked the temperature and here all is fine. Also both batteries are not too old and still work normally (beside the described problem). I may add that using the projector itself is not an "extreme" usage of the battery. When I use the projector, play an HD android game connected to my ps3 controller ...that is a different story.

So my question is what could cause this rapid battery percentage drop even tho the phone has no activity at all and sleeps. Sometimes it happens and sometimes it does not tho..If I would not use the projector then I loose around 2-3 percent overnight, if I use it then I sometimes loose 20% without doing anything. And thats not normal. Maybe android somehow thinks that there is still activity even tho there isn't. Like a virtual activity making the battery think its in use and therefore draining it.

Im running on 4.1.2 JB stock rooted

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General :: Delete Text Cache?

Oct 24, 2013

I was sending a text and input the wrong phone number (a 2 at the end instead of a 3) and now every time I starting inputting that phone number to send a text both numbers come up. I can't find any way to delete the one that is incorrect or any way to delete both or to delete all of the numbers that show up that way. Is there a text cache that can be deleted? I used app cache cleaner, but that didn't work.

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General :: How To Limit Cache Size

Jun 9, 2012

I do really love cloud computing... But, Google seems to have forgot something: set a limit to the cache size.

I have a Nexus S and my poor 16Gb internal memory is saturated because of caches: Google+, Android Gallery (Picasa), Google Music and Google Listen all fight for the sdcard space.

The only apps who have explicit cache settings is Google Listen... The others don't have obvious options. I have 10K songs, 10-20K photos, etc.. I need to access them, but I need to limit the cache size.

Is there a way to easily limit cache size per apps?

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General :: Nandroid - How To Backup Cache

Apr 20, 2012

I just came across my first downfall with moving the dalvik to SD. Nandroid is stuck trying to backup cache. Im guessing the reason is that nandroid cant find the dalvik because it is not symbollically linked by S2e since we arent booted into the actaul OS. Anyway i can get nandroid to backup without moving it back?

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