Android :: Force To Create A Shared Jar Library?
Jul 30, 2009
I have several apps (each in its own apk, process etc) running at the same time on user's device.
these apps are all linked to a single common jar file (internally devloped) which contains a large portion of their overall code size.
is there a way for me to force Android to make this common jar load only once (e.g. into shared memory)?
the reason we want to do it this way, btw, are to reduction of each of the single apps memory intake, on disk footprint and possibly of their startup time.
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Aug 26, 2009
I created a jni library which depends the third shared library, I must copy the third shared library to /system/lib, otherwise, Java application can't load jni library. But you know, on G1 with official OS image, /system/lib is readonly. I tried to call System.setProperty to set java.library.path to the location stored the thired shared library before load jni library, but the issue still exists.
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Apr 22, 2010
I am developing a library for Android applications which does not use native code (JNI). I have tried suppling the library as an external jar in my Android projects but this method does not include the library contents in the apk and thus throws class not found errors when run in the emulator or device. I have also tried creating the library as an Android project in itself and this does work, but only for public static properties (not methods). With the library and application both being in separate apk's I can see that the VM notices references to the library and can read some properties, but when an attempt to instantiate a class in the library is executed I get class not found even though I can read the public static properties from it.
I realize that Davlik byte code is not the same as Java byte code but I am having trouble even finding good information about how to solve what would seem to be a very simple issue in Android. I am looking into the old PlatformLibrary stuff right now but I am not convinced this will work either since the sample has been removed from the Android site.
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Mar 20, 2010
I am now writing a java application. On java side I use System.loadLibrary() to load my own native shared library( named a.so ). I want a.so can communicate with another native shared library(named b.so). When a.so and b.so are loaded in the memory, they belonged to 2 different process. I am not familiar with IPC in android and binder mechanism. How can I do to make a.so communicate with b.so?
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Nov 11, 2010
I am taking over a project, and am trying to launch it in the Android Emulator. I get the following error in Logcat:
11-11 06:21:42.215: ERROR/PackageManager(58): Package com.android.xxx requires unavailable shared library com.google.android.maps; failing!
Console displays:Installation error: INSTALL_FAILED_MISSING_SHARED_LIBRARY
How can I make sure com.google.android.maps is included in my project?
UPDATE:I am using a min sdk level of 3 in my androidmanifest.xml:
CODE:............
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Aug 3, 2009
we're developing applications that will use a single 'shared library' jar file. the jar file will be packed as part of the operating system (built & packed by us)several trials & errors & manual readings had led us to the conclusion that for our projects (both shared lib & dependent apps) to correctly compiled they must
(a) reside UNDER the mydroid source root and
(b) be compiled with the same java version as mydroid.
both a & b are somewhat inconvenient for us (the latter a bit more). is there a way around them?
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Jul 9, 2010
I'm new to Android ndk and i didn't understand yet which are the differences between static and shared library. Could you explain me what these differences are? When developing a library how could i choose one of them?
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Dec 7, 2009
When i tried to execute my project. It is showing error as:- Package pack.com requires unavailable shared library com.google.android.maps; failing!
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Apr 14, 2010
I am currently moving from Xcode and iPhone development to Android with Eclipse. I want to have a shared code project so that I can store all the code to be shared across apps in one common library. However it would appear that the only android project available is for applications and not for code libs how can i achieve this?
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Apr 1, 2010
In my application, I want to use chm library.
Can anyone tell me How to build shared library (.so file) for chm reader in Android?
And which toolchain is used. what is the steps for building it?
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Jan 24, 2012
I would like to extend the functionality of one of the shared native libraries called from within the android.jar code. How can I rebuild the affected shared libraries such that the android code can utilize my modifications?
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Sep 29, 2010
I'm getting an error when trying to use an external jar file to access Forward facing camera in Android. But when we try to load, i get error ""Installation error: INSTALL_FAILED_MISSING_SHARED_LIBRARY" on my console window of myeclipse.
"
when i saw a log file, the error was "unavailable shared library com.sprint.hardware.twinCamDevice"
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Jul 16, 2010
I have a cross-platform C library that I need to compile for Android as a *.so file. The library consist of many .c and .h files, and it use autotools as it's buid system. (./configure && make dep && make). Afaik, the library does not depend on other libraries, other than libc and OpenSSL (which should be present on Andriod).
I'm trying to find the simplest (read fastest in terms or not needing to read hundreds of pages of manuals and then apply try && fail brute-force approaches to complete the task) way of getting the library off my machine in source code form, and into the Android phones as a .so. The library will eventually be accessed from Java's native library interface. For development, I have both Windows and Debian machines on my desk.
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Mar 22, 2010
After installing the smokedglass v6 rom, it deleted some apps, when i try to reinstall the apps that got deleted, i got an error that says "Installation error, Missing shared library." i went into manage apps to make sure they aren't there, and i used root explorer to delete any trace of the apps, yet i still get this error.
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Oct 26, 2009
I'm trying to create a shared lib written in c++. I followed all the steps which are recommended to create the shared lib and to access the native code in Android. But so far I couldn't succeeded in loading the shared lib on device or emulator. When I tried to load the lib by:
static{ System.load("/data/data/com.android/libnative.so");}
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Sep 14, 2010
I would like to know why the size of my shared library .so is bigger than my .apk file generated with Eclipse? Approximatly the so size is twice the apk one. What is strange is after having installed it in the device (2.1 firmware) I checked the size of the apk when I uninstalled it from the device and surprisingly the apk size indicated is bigger even than the .so one. Is there any explaination of that?
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Apr 21, 2010
I'm planning to develop a game for iphone and android. what programming language can i use to create a shared codebase between the two platform. i understand that there are some parts which are device specific.
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Feb 28, 2010
I altered some of the tags (genres) in my mp3 coll, but I keep seeing the old ( no longer present) tags, how do I convince the music player to rescan my SD?
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Feb 17, 2010
How do I create a shared directory with read/write permissions to all applications installed on my phone and that is not on the sdcard?
I tried that :
File f = new File("/tmp");
f.mkdir();
but it is not working.
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Jun 20, 2012
I am looking for a music application for android that will allow me to stream from my music library that is on my NAS. I can share my music via CIFS/SMB, NFS or iTunes server. HTC Vision
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Jun 30, 2010
I need to write a dynamic link library in C++ that is used by Java on Android. As I get, it should be .so library, but I don't know how to do that. I tried Cygwin, but it crashes: Code...
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Aug 12, 2009
I'm trying to create an app for Android that simply sends a command to an SSH server. No response needed, I just need to be able to send a command. I was wondering if there's any java library out there that I could use? No advanced stuff needed, just a pure connection to send the command.
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Jul 17, 2010
I'm new to JNI, i'm developing a native library for an Android project. I read some papers about JNI programming but i didn't understand if it is possible to create a library that can be loaded in different project classes with different packages. I read that to declare a new JNI method the syntax is:
the prefix "Java_"
an encoded fully qualified class name
an underscore ("_") separator
an encoded method name
Based on this definition it shouldn't be possible...
Suppose i had defined a class A in the package pkg1 with the native method foo contained in libfoo, and then i defined a class B in the package pkg2. Can i use libfoo and the foo method in B? How should i define the native method to achieve the result?
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Feb 25, 2010
How many times have you asked users to send you the logcat result to track down a nasty force-close?How many users have actually replied?It's not that users are lazy or busy.Having to run the "logcat" command or download an external log collector app just means too much trouble for them.It should be much simpler. It should be just one tap.In fact I'm surprised (or being ignorant) that an easier error reporting mechanism has not existed yet in the Android API, especially for the infamous force-close. That is why I coded and open-sourced "Android, send me logs!", a small code library that makes it easy to detect force-close and send logs from within your own apps.You can program it to report errors with just one tap, and also include your own tracing information.
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Nov 30, 2012
I would like to create a symbolic link of a shared folder in a folder that I have. How could I duo these in android? GT-I9300
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Jan 11, 2010
I'm using the Android Development Toolkit (ADT) in Eclipse Galileo. I've created a project in which to develop some util classes, which I intend to use in several upcoming Android projects. However, when I come to use these util classes (deployed as a jar and included in the Android project as a user library), I get a java.lang.VerifyError during the startup of the emulator. Can I force the verification of these library files, or do I need to include them as part of the Android project, and not as an external jar?
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Dec 1, 2009
Is it possible to create a custom library in android (having its own layout resources) for use across several android applications?
I created a regular *.jar file but when I tried to create/style my views dynamically most of the properties do not work. Even referencing simple styles from the android.jar file such as android.attr.listSeparatorTextViewStyle did not work.
I created an android project without any Activity, having its own resource files and then referenced this project from another Android project to use in its build path. Everything seems to work fine but the emulator keeps crashing (with no meaningful error message in the LogCat) when I try to run the project.
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Jul 19, 2010
I need to provide some SDK as third party library for other applications. We don't want to open our source code. How could make a jar file?
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Oct 23, 2010
I'm having a problem while accessing a web service through ksoap2 library, is there any other way to access the web service. I can't use ksoap2 library for my project. Should I create a soap library or any other way.
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Feb 4, 2010
I have a static library: libhello.a and I want to create a executable file that link with this static library:Code...
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