I am working on porting dalvik to a processor which has not NOMMU (Memory Management Unit). I couldn't convert one of the fork into vfork in dalvik VM at. "dalvik_system_Zygote.c".
Is there any porting work for NOMMU devices? Any idea? any help?
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I am not sure, if this is the correct platform to talk about it, however I would like to know something about 'How Android supports the large screen display'. I mean here that suppose I want to port the Android SDK to a large portable device having a large display as compared to HTC G1 mobile screen, what all the OS modules (e.g surface manager, kernel: display driver etc) I need to look upon/modify.I guess what I am asking here is not a new subject as I can already see by below links that the Android OS is ported for large screen devices.
1. http://www.icpdas-usa.com/vp_23a1.html Specifications & Additional Information Models VP-23A1 VP-25A1 System Software OS Android 1.5 SDK Provided Standard ViewPAC SDK for Windows and Linux by GNU C language CPU Module CPU PXA270 or compatible (32-bit and 520 MHz) SRAM 128 MB
2. ARCHOS 5 Internet tablet shown on http://www.marketwatch.com/story/archos-brings-the-android platform-t... and on http://www.archos.com/products/imt/index.html?country=in〈=en as.
Let me know your opinion about it, any kind of clue will be appreciated.
Porting roms from and to devices of different manufacturers,resolution(mdpi,hdpi etc.) etc.I am familiar with the zip method of porting roms from same manufacturer(sony in my case,xperia U to Sola)but i want to know about porting roms from others like htc,samsung etc and Tools/apps needed to accomplish this.Most of the tutorials i found on XDA are based on the same method of zip porting.
View 1 Replies View RelatedI've heard that theae 2 processers are very similar but obviously there must be a few differences. Does anyone know where I can find a comparison between the 2 or can someone compare them for me here?I'm just curious really. Both are really good I hear.
View 16 Replies View Related1. 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.
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?
View 2 Replies View RelatedHow To Transfer TEXT MESSAGES from WP8.1 devices to Android Devices ??And also the contacts!!
View 2 Replies View RelatedCan I have two separate google play accounts for two different devices & keep one gmail account for both devices?
View 6 Replies View RelatedI am developing my am on mac (10.5.8), on eclipse and SDK 1.6 and a Vodafone HTC Magic Everything was working ok up to a few days ago. I can not see my device on adb devices. I also got a Sony Xperia and I can not see it on the list either. I upgraded the phone software (the HTC) to 1.6 a few days ago. Maybe that is what caused the change, but I could not be sure.
View 2 Replies View RelatedI will hopefully be getting my Evo in a few days (supposed to have arrived today, but it's been backlogged )When I do, I'm downloading the Keypro and syncing it with a Freedom Pro folding bluetooth keyboard. I just got word that the Evo, the app, and the keyboard work together flawlessly! So, what word processing app should I chose to use with my Evo? I'm planning on blogging, writing emails, short stories, and yes... even working on a novel or two. I'm hoping to replace my laptop for any writing I do out of the house with my beautifully Evo. Ideally, I'd like to be able to save files on my phone and later transfer them to my computer and also upload them to google docs (depending on what I am writing/doing). I'd like a built in dictionary/spell check and thesaurus. Programmable shortcut keys would also be a wishlist feature. So what do you guys all recommend? Oh, and I'm not concerned about the cost. I'm willing to pay for a quality product.
View 16 Replies View RelatedI am a total noob to this. I have literally just started today. I know Java and have developed in Eclipse forever - I am just new to Android. So, I downloaded the SDK and ADT plugin. I even coded the Hello Android app with a simple textview and got it going. What I am surprised at is the amount of RAM and processing power that eclipse is hogging on 2 occasions: when running the AVD wizard when running the emulator In the first instance, eclipse just froze and ran out of heap space. I had to restart with a much higher -Xmx setting to let that thing run through. On 2) even when the emulator is just sitting and doing nothing, its taking up about 13% cpu power constantly. Even as I write, this, my emulator is running in the background and the windows task manager shows emulator.exe taking 13%. This is on my Core i7 laptop. So, I am pretty sure on my regular Core 2 computer, this thing will easily take upwards of 40% cpu. So that leads me to suspect: Have I done everything right? Is it like this for everyone?
View 2 Replies View RelatedIs there an app that i can download that shows my processor speed? I have seen them on phones that have been rooted and overclocked, but never seen one for stock.I am on a Motorola Droid running stock 2.1-update 1. I dont want to hear "just root and overclock." If anyone knows of an app or tool that will show this.
View 4 Replies View RelatedPossible Duplicate: What can you not do on the Dalvik VM (Android's VM) that you can in Sun VM?
What ever interviews i have faced.In every interview when interviewers come on android topic they ask this question.
"what is the difference between Dalvik VM vs Sun JVM?".
I have given some answers like. http://stackoverflow.com/questions/230193/what-can-you-not-do-on-the-dalvik-vm-androids-vm-that-you-can-in-sun-vm
Through out of my Java projects I've got used to TDD with the help of this basic tools
JUnit (http://www.junit.org/) as Unit testing Framework Mockito (http://mockito.org/) as tool for Stubs and Mock objects EclEmma (http://www.eclemma.org/) as Java Code Coverage for Eclips
As far as I understand none of them I can use fully when I do coding for Dalvik:
JUnit -- android.jar has its own junit.jar and my assumption is you're supposed to use it, not the latest version from junit.org Mockito -- read this one http://code.google.com/p/mockito/issues/detail?id=57 EclEmma -- doesn't support Android JUnit tests
Replacing my current phone is three months away, February could not come soon enough. I will DEFINITELY be getting an android, no doubts about it. But what I'm wondering is if the following phone is being planned for the us.
Android 2.0 (or higher)
Hardware Keyboard (prefer a slider like droid, but I'm not picky)
Snapdragon Processor
Carrier doesn't matter
Yes, I'm aware that the droid meets almost all of those requirements, but I'm super picky. I appreciate anyone's help on this, I've been searching and having a fairly rough time locating one.
Im new here and just wanted an opinion on some info i just received about these 2 processors. I was originally under the impression that the hummingbird processor is faster but have been informed that infact the ti omap is actually a faster processor but lacks the better gpu. also was informed that the memory the droid x uses is faster than the Samsung galaxy s phones. Is this info correct and is this why froyo 2.2 is not giving me any kind of performance boost. the droid x my family has seems to of benefited greatly from the 2.2 update and is making my fascinate look like a out dated piece of equipment.
View 19 Replies View RelatedI implemented a runtime bytecoder for Java apps based on Javassist. The idea is to introduce code to execute code remotely based on current context. Since the context is not the same at every moment, I need to perform the bytecoding at every execution (if needed). I tried to port my code to Android in order to test it on mobile devices (I already tested it on win mobile and iphone using phoneme and jamvm respectively). However, I could not find any bytecoding tool available for Dalvik. Is there any Dalvik bytecoder available or an ongoing project that I can join/check that is working on this issue? If not, is there any other alternative beside running a decompiler for dex files, and modifying it manually?
View 2 Replies View RelatedAre there any compability issues between a standard JVM and Dalvik VM? Are there any classes or packages from the Sun SDK that can't be used on Android?
View 2 Replies View RelatedI'm wondering if and how one can load dex or class files dynamically in dalvik, some quick'n'dirty test function I wrote was this:
CODE:............
whereas the Foo interface is this
CODE:..............
I also tried the same test driver code with a plain .class file which I didn't expect to work in a dalvik context for the obvious reasons, and it doesn't either.
Anyways, the above test driver throws at defineClass() and it doesn't work and I investigated the dalvik code and found this: http://www.google.com/codesearch/p?hl=en#atE6BTe41-M/vm/Jni.c&q=Jni.c...
The Android's VM is called 'Dalvik' on its offical site, but I found the name 'Delvik' has also been used with Android's VM in some forums and kind of articles. So could someone helps me to figure out what's 'Delvik'? it's just a miss spelling or something else?
View 1 Replies View RelatedI want to port Android on the device with ARM9 200Mhz and no-fpu support, Is this possible, Has google revealed all code of android or it is just available to partners?
if ANDROID_PORT_POSSIBLE
Is there any tutorial available for porting?
Solved this by following the instructions at http://www.mail-archive.com/android-porting@googlegroups.com/msg01340... Also realised - that looks like a more appropriate mailinglist too :)
View 2 Replies View RelatedI am learning Dalvik by debugging the code. I found some calloc invocations in allocateAuxStructures() function return NULL. I cound't trace into the calloc function, so I don't know if memory really runs out or due to other reasons.
The following is my building environment:
CODE:........................
I've seen a lot of use of final for local primitives.
Presumable to indicate to the compiler that the value shouldn't be changed.
However, what's the implication of this on Dalvik?
I believe final local variables are usually placed on the heap for extended lifetime (for use in inner classes), so is their a runtime overhead rather than using simple locals (which use Dalvik registers)?
I have a jar that I need to reference from my Android project. I also have the src of the jar, so I could include it in the project itself. I was wondering if referencing a jar vs. compiling it in with the project using Dalvik makes any difference in terms of final Dalvik package size that gets generated.
View 1 Replies View RelatedI would like to execute opcodes directly against the running Dalvik VM instance from within my application on Android. I'm looking for something similar to the C asm function. I have a list of opcodes for dalvik, but I am unfamiliar with how to either execute them directly, or write them out to .class files and execute them against some sort of VM CLI command like dalvikvm from within a running application.
View 2 Replies View RelatedI am using Thread to display animation..I create a new thread whenever user preference is changed.Now I want to Remove the previous thread from Dalvik VM so that my application does not crash..How can I remove Thread from DVM?? I use Thread.stop() but it is not working.
View 4 Replies View RelatedIn theory, Dalvik executes any virtual machine byte code, created for example with the compilers of
AspectJ
ColdFusion
Clojure
Groovy
JavaFX Script
JRuby
Jython
Rhino
Scala
Are there already working versions of bytecode compilers for Dalvik available for other languages than Java?
So the milestone and droid run a 550mhz processor, correct me if i am wrong, and that can be overclocked to run faster.
But with the new phones like the Supersonic, and the Scorpian from HTC running at the 1.5ghz does that mean those phones will stomp out the speed compared to the droid. Does that make them better phones?
Since the Nexus One runs a 1ghz as well, does that make it faster than the droid?
I is it possible to instal Windows mobile on an Android Tablet with ARM procesoor ?
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