Unity: Edit Gradle file of Android modules in Unity Assets - android

I have a project with multiple Android modules and I would like to overwrite their gradle file. How can I accomplish that?
I am using the "mainTemplate.gradle" file for the main Android project and it works fine, but if I put this template inside my module, it's not used when building to Android project.

You can only put mainTemplate.gradle in your <ProjectName>Assets\Plugins\Android folder as this is where Unity hard-coded a way to look for the gradle file. If you put it anywhere else, it won't work since Unity can't find it. There are stuff you can't do inside Unity Editor and this is one of them.
The solution is to export your project and build it with Android Studio. By doing that, you can add as many gradle file as you want in your exported Android project.

Related

Avoid code duplication in Android Studio modules

I've created a project and a library separately using Android Studio, each in a separate folder inside some directory.
I tried to add the library as a module to the project, and noticed that instead of just referencing the library like in Eclipse, the library was copied inside the project directory.
That means that if this happened N times for N projects, then I'll have N copies of the library and I'll need to update them all when any update is to be done.
I'm working on v 1.0.2 of Android Studio.
Any one has a better idea to do it?
Three options I know of:
You can specify the path to the external library:
Android studio add external project to build.gradle
Include the compiled jar file from the library in the libs directory of the N apps.
Publish the artifact (the jar from library project) to a gradle repository and then you can add dependencies to that project just like you would for the support library etc.
See http://gradle.org/docs/current/userguide/artifact_management.html

Library Project Supporting Eclipse and Android Studio

I'm working on a library project that provides access to a service. We started the project few months ago and we were supporting Eclipse only (since Android Studio was a prewview edition).
Now that Android Studio has become a "beta" version, and its popularity has increased greatly, we had the intention to support it as welll, but we are facing the problem of how to support both "styles" with the same base (project structure and code).
The library we are building has a UI that forced us to have the library as library project instead of just a simple jar. We have this project working with ANT to build the required files (jars) and packaging everthing in a library project.
Android Studio now introduces the .aar library files, that can also contain UI.
So our problem is finding examples of other library projects containing UI that are also supporting both IDE's. Wondering if someone else have face this same situation.
Is is possible to have a Library Project to support both IDEs? (Eclipse and Android Studio)
Thanks to #CommonsWare. When I looked at your projects I realize that we didn't need our project to be "Android Studio compatible". Since we wanted to share the project as an .aar file, I had only to make a build.gradle at the root of my library project and add the gradle folder (containing the gradle wrapper jars).
In this way I can use the console and create a .aar file using "./gradlew aR" command. Now I can distribute the library project for Eclipse users or the .aar file for Android Studio users.
I'm testing the .aar file, and the only problem I have right now is that classes inside a jar file within libs folder inside the .aar file are not recognized, just the classes present inside "classes.jar", but I think I would create another question here in SOF since is not relevant for this question.

How to obfuscate Android library project with Eclipse?

Hi I developed one small library in Java for my Android application. I want to do obfuscating for that library. I using Android version 4.1.2. First thing is that according to Google's Android documentation there is no proguard.cfg file in my project root directory. Instead of that proguard-project.txt is there. I add proguard.config=proguard-project.txt into my project-properties file.
After this configuration I tried to export this library project and try to do obfuscating of that project. It showing error can generate .apk file because it is library project.
Then I tried with another option in export. Instead of regular export android application I use general -> archive file and tried to export it and generate jar file but I check inside the jar and no encoding is done. That means anyone can extract and check classes and content inside my library. But the main thing is that it generates proguard folder inside my project and also generate dump mapping seeds usage.text files inside it.
So I need help to do proper ProGuard obfuscating of my Android library. Am I doing something wrong. What kind of configuration do I have to add inside my proguard-project.txt so that it will do proper encoding of my code?
Actually, you can obfuscate a library project, but not directly! You can only do that by exporting the entire application's project that uses that library.
With that in mind, you can set a different proguard.cfg at the root folder of your Library Project.
Hope this helps.

Android how to export jar with resources?

I create an Android project for build my custom widget, and I want to export it as a jar for other project so that reuse them conveniently, but now a problem is, I can't use resources which is included in my custom widget jar, for example a png picture, it gets a null from the resource Id of class R! How can I sovle it?
Update question:
How can I parse LayerDrawable xml from assets folder in code?
You cannot export self-contained Android Library jar at this time and announced will be available in the future SDK release.
https://developer.android.com/guide/developing/projects/index.html#LibraryProjects
You cannot export the Android Project to Jar with Resources. What you can do is Make First Project as Library and then Add that to another project.
See Documentation Here shows how to Setup a Project as Library and use in another Project
In order to get the app working with my exported library .jar file, I had to copy everything in the resources directory "res" from the library project to the application project. Also had to merge file string.xml as well as merge the ApplicationManfiest.xml files as well. To add the project as a library through eclipse is much simpler.

How to include jar files in android library project

I am trying to use phonegap inside an android library project. The library project compiles just fine but when i try to start an activity that extends DroidGap, i get this error
01-02 10:12:17.575: W/dalvikvm(316): Unable to resolve superclass of Lcom/***/***.
I think this is because the phonegap.jar file is not included in the compiled jar file of the android library project. I have tried using ant to build but it doesn't seem to work.
Edit: I am building a android library that can be used in other android projects. I am using the standard android library project but activities in this lib project that extended DroidGap class in phonegap.jar are crashing with the above error.
I´m afraid that is not possible yet. The result jar file will contain all classes and resources defined in the android library project, but will not include external jar files added to the build path. You will have to add those to your final Android Projects using that library. You can also find similar questions in SO like this one
create one folder 'lib' in your project. put your .jar file in lib folder. select your .jar file right clicked on ,select buid path --->'add to build'. will add your .jar file. now you can use this .jar file classes.
I would suggest not making the 'lib' folder manually.
Instead:
Right click Project --> Properties --
Select Java Build Path
Make sure Libraries is the tab selected at the top
Click Add External JARs
Then find your JAR...
Basically, the same way you may have added the PhoneGap.jar
The ADT (Android Development Tool Eclipse plug-in) has built-in support for the creation and reference of library projects. See the example in section 5 of this tutorial.
Try changing the name of the folder to libs instead of lib.
have you added required permission in manifest file..
see the below links
http://docs.phonegap.com/en/1.4.0/guide_getting-started_android_index.md.html

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