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.
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What are the minimal steps necessary (including retrieving the source code) to compile and run just the Dalvik virtual machine on Linux?
View 1 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.
when I compile android (http://source.android.com/download) it does not compile some source files. For example there is external/bluetooth/bluez/sbc/sbc.c which is not compiled. There are also other such files.
It's possible those files need not to be compiled. Or it might be that I need some special configuration to compile them.
Either way, if it is possible, I'd like to compile them. Is there some way to do it? Maybe some "compile_all" make target? (I believe the reason why I want to compile all source files is not important)
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 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
I 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 RelatedTo be plain, the android / xml widget reference material is poor at best.Rather than approaching the controls from an xml point of view, its all driven from a class point of view, which is clunky when you want to figure out how to build a good xml UI.Is there any decent documentation with design in mind (tag names, attribute names, etc) or is it just figure it out and struggle through the best you can? I'm on my 2nd android app and losing patience with hunting and pecking for the correct attributes / tags.
View 2 Replies View RelatedIs there one? I have "Professional Android 2 Application Development" by Meier and "Teach Yourself Android Application Development in 24 Hours" by Darcy/Conder. Both are mediocre at best. Neither is a decent REFERENCE, but rather they are basically structured as tutorials, without nothing in the way of reasonably comprehensive API documentation (which also, BTW, is woefully inadequate on the android.com site). And no sort of in-depth discussion of the structure of the system, so one could perhaps understand it rather than simply using the (inadequate) cookbooks.
View 19 Replies View RelatedIs there any sort of xml reference?
I found this which turned out to be invaluable for me http://groups.google.com/group/android-developers/msg/d334017d72909c79
but I can't figure out how I was supposed to know how to do that, had I not found that post.
I know that the api reference has xml attributes listed for many of the classes... but what about xml tags? Where is it documented that I could build a shape using <padding>, <corners>, <solid> tags?
I'd really like to know where I can find such documentation.
I want to write an application that will log down whatever I type using the Android keyboard.
The purpose is to have a backup of all the keyboard entries.
Is it possible?
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 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?
I have a custom view that needs a reference to the activity that created it.Dianne Hackborn said in another thread: >Give your view a reference to the activity (or a Java interface it implements) and call back through that. >Much much MUCH more efficient than sending a broadcast. >See all of the standard view and view subclass callbacks for examples.
View 9 Replies View RelatedHow i can get a reference to the digital keyboard? is the keyboard added to the activity? how i can set a other style to the keyboard? Where i get a documentation of the digital keyboard?
View 2 Replies View RelatedI have an object that is used for calling callback functions ----- static jobject o;
I have assigned the callback function to that object through a pointer, env -----
o=env->NewGlobalRef(callback);
The same pointer, env, points towards the function CallVoidMethod( ) that uses JNI to reach to the java code.
env->CallVoidMethod(o, methodId, pDeviceId, deviceStatus, statusReason, connectionProgressInfo);
However on calling this function, the system is getting crashed, and VM says that it's an invalid reference to static jobject o and then it crashes.
My code is as follows :
CODE:..........................
Object getThisObjName= new Object();
I'd like to get the name of an object reference.
Is this possible via reflection in Android?
I have a tab with an activitygroup as the intent of tab1.
My code of the activity(group):
CODE:..................
Where can i find a Reference Chooser like this: http://www.vogella.de/articles/Android/images/first46.gif
View 2 Replies View RelatedI am trying to get a reference to the android internal class PhoneWindow (android.policy.PhoneWindow) object from an application. I would like to call a method on it (specifically I would like to call getDecorView on PhoneWindow). How do I do this?
View 2 Replies View RelatedI have a Timer in my application, and would like to allow the user to set the timer, and maybe cancel it in another execution of the application. To do that, I need to have a reference to the Timer created in the first execution. How can I obtain that? Is there a way of storing/retrieving memory addressed?
View 3 Replies View RelatedI've created a class that extends drawable that I'd like to reference inside a resource xml.
I happen to need it in a selector, like so:
CODE:.................................