Develop Reference

Add .so files to gradle project for a jar

In my current gradle based project, I'm using a library which depends on already built .so libraries in the armeabi folder in libs.
How can I add those .so files to my project?
Thanks

I created a new JAR with the .so files in a lib folder in it. Simpliest way to fix that..

Create Android Library project jar

I have a project that is an Android Library. It uses two external jars (universal image loader and ksoap).
I need to create a jar from this project to distribute it, but when I do this and use this project, I always get a java.lang.NoClassDefFoundError, saying that the ksoap classes are not found.
When I open the jar file, I see the both jars included, but it seems that the final project does not see them.
How can I do this?
Thanks!

Create a regular Java library and do the following steps:
Add "android.jar" as a library in your project
How to locate it?
android.jar is located in Android SDK
<Android SDK path> / platforms / android-XX / android.jar (XX = API number)
It's simple to do, and it not requires to include "android.jar" in your JAR file, because "android.jar" is already included by default in Eclipse ADT / Android Studio.
NOTE:
For Android Studio, add the library uniquely in this way:
Add this on your build.gradle.
dependencies {
compile files('libs/your-jar-library.jar')
}
For include these two external jars, you need to do following steps:
Unzip both JARS
Unzip your JAR file
Copy the files of the unzipped libraries to your unzipped JAR (Only package folders)
Zip your JAR file with the external libraries included, you don't need to put a JAR inside JAR.

How to put an external library project to my one?

I want to use a svg-android library to work with *.svg files in Android. For the same, I've installed the apache ant, created a folder in workspace called: SVGAndroid and then added
android.library.reference.1=C:\Android\workspace\SVGAndroid
to project.properties file.
There were no documentation for functions in ReadMe, so I'm wondering if the installation correct or not, how to reinstall an external lib in the second case and where are the examples of using svg-android?

For your including of the project, just include the project into your workspace and in your respective application under the properties of that project just add a dependency on a library that references svgandroid. Make SURE to include the files and ensure that the compile class files are present in the final output of the apk. This typically means that you add the project to your build path/order.
Another approach is to just take the entire project and compile it into a jar file and then include that jar in your libs folder and add that dependency on the jar file of that respective project to your core application.
Useful links
How can I use external JARs in an Android project?

I would rather suggest to not add the path to the project manually, but from Project Properties -> Android and you will have a list with all the library projects in the workspace from which you can choose the desired project.
Also I suggest adding in project.properties the following line:
manifestmerger.enabled=true
in order to have all the AndroidManifest.xml files of the referenced library projects merged into the main project's manifest.

If you want to include a library file in to your project follow the below steps;
Download a jar file and save it in any folder.
open your project.
Right click--> Build path--> Add External Archives---> Add your external jar file to your project

Including Library Projects in Project Android

Is there a way to include a library project in a project without it being a separate project? The ideal situation is to be able to make code changes to the library project and push it to the git repo with the main referencing project.

You can add libraries to your build path.

You can export the library project as a jar file and then you can add that jar file in your libs folder and configure your build path to add it to your project.

Android add jar to custom library

I have made an android project in eclipse. This project has a library project:
the library project (marked with "is library") has included a jar file.
this library project does a lot of stuff with the use of the jar file.
in code everything is fine.
The problem is that the reference to the jar file doesn't exist anymore when it is compiled and installed to my phone.
When i add the jarfile also to my base project. Then the program works.
However, i don't believe that this is the right solution.
So what does i do wrong?

You should add a libs folder to your project
Then, add the jar to the folder and right click on the .jar file and go to Build Path, and select Add To Path or Build To Path. This way the library will be a part of your project. This should help.

The library jar you used in your Android Library Project must be manually added to the dependent application project's build path, not the Android library project build path itself, check out API here