Develop Reference

Installing Vuforia in Android Studio

Can anyone give me some instructions of how I'm supposed to install Vuforia in Android Studio? I'm making a new app and I need to use augmented reality with Vuforia. Hope you can help me!
Thanks a lot!

You need to follow following Steps:
Read our Getting Started Guide for instructions on setting up the
Java SDK, Android SDK and NDK:
https://developer.vuforia.com/downloads/sdk
Make sure you have installed the latest version available of Android
Studio from:
http://developer.android.com/sdk/index.html
Use the Android SDK Manager (from within Android Studio) to get the
latest Android SDK and Android Platform and Build tools
Launch Android Studio
Select File - > Import Project ... and browse to the root directory
of the sample Vuforia project you want to open
Proceed in the Import Wizard dialog (click Next, Next) until you
reach a page with this message:
"Alternatively, you can fill in the actual path map in the table below":
click to edit
enter the actual path to the Vuforia.jar library (which is located under your vuforia_install_dir/build/java/vuforia)
In the Project view, right-click on the Project and expand the view
hierarchy so to locate the Vuforia.jar under app > src > main
right-click on Vuforia.jar to open the context menu
click on the "Add as library..." option in the context menu
Alternatively, if you cannot locate the Vuforia.jar in your project
hierarchy:
right-click on the Project and select, "Open Module Settings"
select "App"
then select the "Dependencies" tab
Click on the "+" button to Add a File Dependency and browse to the
Vuforia.jar file
Create a folder called "jniLibs" under the "app/src/main" folder under your Android Studio project directory
Copy the "armeabi-v7a" folder (including the libVuforia.so file
located inside it) from the "vuforia_install_dir/build/lib" to the
"app/src/main/jniLibs" folder
the resulting directory structure under your project root should be:
/app
/src
/main
/jniLibs
/armeabi-v7a
/**libVuforia.so**
If your project includes a "jni" folder, move it to a location
outside of your project (otherwise Android Studio may attempt to
compile the sources in that folder and may fail)
Clean and rebuild the project
Run the app on your device
Best Luck :)

answer from here and work for me:
(Seems like the project needs access to the Vuforia.jar file and can't access it outside of the sample folder(?))
So,
copy the Vuforia.jar file from the folder \vuforia-sdk-android-x-x-x\build\java\vuforia to a folder in the sample project, e.g. to \samples\app\libs
(it's important it's in the "\app" path, so you can find it in the next step)
in Android SDK hit F4 (or right click on the app folder in the project structure and click on "Open Module Settings".
Select the tab "dependencies", click on the "+" to add a dependency and select "2 File dependency".
Now select the above path and file ((\samples\app) \libs\Vuforia.jar) and the project will run just fine...
Good luck.

How to use an external java project in an android application

i've been struggling with this issue for a couple of days now...
ill explain my problem in a nutshell....
i have a simple java project (not android library or something more complex) which i want to use as my model..
lets assum it is called mymodel and it has a simple class Model.
i also have an android application myandroidapp and in the main activity i want to create an instance of the class Model.
I can add the mymodel as a project to the build path and compile but when i run this application it throws class not found exception. how can i make it work?
please help.
thanks

Step #1: Create a JAR based on your "simple java project"
Step #2: Put the JAR in the libs/ directory of your Android project
And you're done.
Never mess with the build path of an Android Eclipse project manually.

In Eclipse, you can follow the following steps:
Creating JAR file
Right-click on the root of the mymodel project and click on 'Export...'
In the window that appears, expand the 'Java' category/folder, choose 'JAR file' and click 'Next'
In the next window, choose the options you desire, especially pay attention to where the 'export destination' is. When you're done, click on 'Finish'. The JAR file will now be located at the 'export destination'.
Adding JAR to Android project
In your android project (myandroidapp), copy the JAR file into the libs/ folder. You can do this by simply copy and pasting or dragging and dropping etc.
Then, right-click on the JAR file that is now in the libs folder, go on 'Build Path' and from the menu that appears, click on 'Add to Build Path'
You should now be able to use this JAR file in your Android project.

Create Jar file for android project

I want to create a jar file from one android project for another android project.I want select only certain classes not all classes from project.I tried eclipse-export way to create a jar.Jar file is created and it also contains all selected class files,after adding the created jar file to the main android project it gives the error:“java.lang.NoClassDefFoundError”.Is the eclipse-export way is not valid to create jar for android project?
I also tried steps provided by this blog http://www.olivacorner.com/2011/04/create-an-android-jar-library-with-eclipse/comment-page-1/#comment-343,but not able to create a desired jar file.
Can anybody please provide the steps to create a jar file for android project.
Thanks.

So you want to create a library for Android? In this case, you can create a Library-project and then reference to it in the main-project.
See the docs.

Step 1. Create Android library project as explained here.(Same as suggested by Lukas)
Step 2. Now you need to give reference of Android Library project created in step 1 to your client application. There are two ways to do so.
Give reference of Android Library Project itself by client app property -> Select 'Android' on left pane -> In Libraty Section, Add Android Libraty project (This is explained at link given in Step 1 above)
Give the reference of .jar file of Android Library project (from Location of Android Library project -> bin -> .jar file). Client Application -> Properties -> Click 'Java Build Path' in lefe pane -> Go to 'Libraries' Tab -> Click 'Add External JARs' button and select the .jar file -> Go to 'Order and Export' tab and select the added .jar file reference and move it to top.
Hope this will help you.

how to implement Zxing Intent Integrator.java in Android

I am working on bar code scanner.
I have Zxing IntentIntegrator.java file. I don't know how to use this File in my application to let my application work.

Paste the android_integration_supportv4.jar (located at zxing-2.1\android-integration) into libs folder in your eclipse (adt) project tree.
You should than create dependencies by right click on the folder and selecting
build path->Configure build path...
In the dialog click the Add jar button and select the android_integration_supportv4.jar you just added.

Adding a JAR file to an Android application

I want to add the jTwitter library to my application.
How can I add and build the path for it?

Hai Nikki,
If you are using Eclipise IDE, then follow these steps shown below.
step1:
Right click the project Name, there yiu find a option Build path(Refer Figure1)
step2: click Build path then configure Build path(Refer figure2), a dialog box will appear, in that click Add External Jars , select and add it(refer figure3).
figure 1:
figure2:
figure 3:

In case you are using Eclipse go to Project → Properties there navigate to Java Build Path on the tab Libraries hit the Add External JARs button and select your JAR file.