I'm trying to run Vuforia SDK samples from here on Android:
I have already downloaded the main SDK and put those sample files in the sample folder. I have added the Vuforia.jar as a library and dependency to my project. The app runs on my Samsung S4 and shows the Menu but when I click Start on any of the examples it sends me back to the main menu rather than opening the camera. It doesn't show any crash error in the logs.
I'm wondering if anyone has experienced this problem and has managed to fix it?
I had the same issue and when looked at the log it had this message com.vuforia.samples.VuforiaSamples W/System.err: The library libVuforia.so could not be loaded
Then I followed the answer here https://developer.vuforia.com/forum/android/crash-start-button-sample
and that .jar file to the project. This solved the above issue.
Also I had to generate a license key for the app and set it in the last parameter in Vuforia.setInitParameters(mActivity, mVuforiaFlags, "") in the SampleApplicationSession class
try it:
add the Vuforia.jar lib in your project;
go to archive build.gradle (Module:app) and check if the variable 'VUFORIA_SDK_DIR' is correct (in my project it had the value "../../../" but i had to change to "../../"), the path has to lead to your Vuforia SDK dir;
finally, change the method Vuforia.setInitParameters in the archive SampleApplicationSession.java (line: 414), add your vuforia key in the third paramether;
it works to me
I’m trying to extend my class from ActionBarActivity and cant, already tried every possible way I know. I’m importing android.support.v7.app.ActionBarActivity; I want to add the lib without the resource as instructed on the android developer’s site. And every time I get the same error....I upload some photos
this is the error: Description Resource Path Location Type
The project was not built since its build path is incomplete. Cannot find the class file for android.support.v4.app.ActionBarDrawerToggle$DelegateProvider. Fix the build path then try building this project xxx Unknown Java Problem
a busy cat http://img29.imageshack.us/img29/1032/qlei.jpg
a busy cat http://img43.imageshack.us/img43/6339/n4cj.jpg
thanks
The problem has been fixed for me after adding android support library.
Right Click -> Android Tools -> Add Support Library
Check that you have the android-support v7-appcompat project in the Projects tab on Java Build Path as in the picture:
(I can't add the picture to you, but you find it by right clicking your project and choose Build Path --> Configure Build Path)
Check also that that project does not report any error.
I am a novice but I just passed by the same obstacle a couple of minutes ago.
I hope this help.
I copied the whole project and it started working.....strange
I am currently migrating an Eclipse app to Android Studio.
This app was using the in app billing.
My main problem is to compile the project and the aidl file (I guess you all use this file)
I get this error message:
Gradle: error: cannot find symbol class IInAppBillingService
Gradle: error: package IInAppBillingService does not exist
So, following some tutorials, I move this file from com.mypackage.billing to src/main/aidl
(see this reference)
But as soon, as I do that, I get this message:
Gradle: Execution failed for task ':xxxxxxxxxxx:compileDebugAidl'.
Failed to run command:
(...) C:\Users\xxxx\AndroidStudioProjects\xxxxxxProject\xxxxxxx\src\main\aidl\IInAppBillingService.aidl:45
interface IInAppBillingService should be declared in a file called
com\xxxxxxxx\billing\IInAppBillingService.aidl.
The message is clearly a contradiction with the post from the Google bug page I linked above.
Anyone suceeded to make this aidl file to work and can help me?
Just to inform, some links I followed:
http://tools.android.com/tech-docs/new-build-system/user-guide
http://developer.android.com/guide/components/aidl.html
Adding this as an answer since it seemed to help quite a few people.
Create a new directory named 'aidl' under 'src/main/'. It should look like 'src/main/aidl'.
Add a new package name 'com.android.vending.billing' to the directory 'src/main/aidl'
Locate your sdk location and go to "sdk\extras\google\play_billing". Default location for the sdk is "C:\Program Files (x86)\Android\android-sdk". If you custom changed it, then you will have to figure out the location through the sdk manager.
Copy 'IInAppBillingService.aidl' into the package created above. In the end, it should look similar to the image below.
Rebuild project and it should be good to go.
Note: Make sure you include the necessary import if your reference isn't working
import com.android.vending.billing.IInAppBillingService;
https://issuetracker.google.com/issues/36973270
Edit From Comment
After I did this, the references to IInAppBillingService in my code were still highlighted as errors, but after rebuilding the app, the class was recognized
Just as the error message says, you need to put IInAppBillingService.aidl in the correct directory dictated by it's package (com.android.vending.billing).
Within the src/main/aidl/ folder you already have, put the .aidl file in com/android/vending/billing/.
Create new directory under src/main called aidl
Right click on directory aidl, select new->add package
Enter Name of the package com.android.vending.billing
Copy IInAppBillingService.aidl from the directory Android/Sdk/extras/google/play_billing to the directory App_name/app/src/main/aidl/com/android/vending/billing
Now go ahead with InApp billing coding and while defining InApp related services you will get an error can not resolve symbol IInAppBillingXXXXXX
Now goto to Build from android studio menu , click on Rebuild Project. This will generate IInAppBillingService.java file inside App_Name/app/build/generated/source/aidl/debug/com/android/vending/billing. This will solve the issue.
The rest of posts here didn't work for me till I created a new folder like shown here.
Add this code in build.gradle
android {
sourceSets {
main {
aidl.srcDirs = ['src']
}
}
}
Rebuild and import aidl class
The above answers concentrate on file location, but it appears you already had that set correctly. I experienced this same issue in Android Studio, but none of the listed answers resolved it, and I banged my head against it for an hour. Eventually, I realized that I was missing an obvious import:
import com.android.vending.billing.IInAppBillingService;
Once I added that it resolved this error message.
This import isn't mentioned in any of the Google Billing docs or included in any of the code examples that I found. While it may be obvious to experienced Java developers, beginners just trying to learn their first project may need it explicitly pointed out.
We need to add
create folder - src/main/aidl/packagename and place aidl file under this.
In the aidl file - mention the package name.
package packagename
Now clean the project, rebuild the project - We can the corresponding java file for the aidl generated in app\build\generated\source\aidl\debug\packagename\youraidl.java
I know it sounds so easy, but I copy paste from google sample all folder
https://github.com/googlesamples/android-play-billing/tree/master/TrivialDrive/app/src/main
aidl/com/android/vending/billing
copied into project aidl ( I had set project view in Android Studio)
and next I clean and rebuild project and it found a reference.
I've tried every solutions, but the problem was that Android Studio had compiled, with any apparent reason, in a different build type of the module that contains the AIDL packages than it was specified by the settings.
From debug to release, so the other modules couldn't see the AIDL pkg.
Switching from debug to release and turns back, solved my problem.
restarting Android Studio worked for me
a second silly thing that took me a while. I dropped the code on Android Studio to allow him create the file, but he created a .java (as expected) instead a .aidl Jiji, stupid of me
if you do all the names correct go to Build>rebuild project
it worked for me
I use Android Studio 4.1, just right click mouse -> New -> AIDL -> AIDL File.
A file will be created and placed in the [src/main/aidl] folder automatically. The aidl folder will also be created if it does not exist.
This function only supports min sdk 16+. My old project still can be supported, you can temporarily modify the min sdk to 16, create aidl and build project. After the relative interface and class be generated, recover the min sdk settings, it also works and builds project well then.
I was asked to make a project work in Android and I am a complete noob in this aspect and, well... things are not working...
I have created a little code in Java which uses libraries - this code works perfectly. I am now trying to make this code work on Android but I have problems...
It seems I cannot use any element from the libraries I imported to my Android project. The project loads on the phone perfectly fine when no instance of the library is created, but when I make use of the library the app crashed and I get errors.
http://i.imgur.com/OILHQ.jpg
Here is what the project package looks like
http://i.imgur.com/HQEX9.jpg
The part with the arrow is what I think makes the program crashed. When I remove this line, everything works fine.
I checked online about problems with Android and external libraries but I could not understand everything... Could you help me pinpoint exactly what is wrong and how to solve this?
Thanks!
I got this issue when I first started android development.
Key to this is to the external library seems to require them being another android project itself, instead of java project. After creating this android project, right click on the "external project" and choose properties. Under Android Tab, there should be something to check to denote that it is a library instead of application. After doing this, the linking is quite similar to how we link normal java projects to external java library
If you are using eclipse, than just create a "libs" folder in project root and drop your external libraries there.
Alternatively you Right-click on the jar file > build path > add to build path
I found this bug http://code.google.com/p/android/issues/detail?id=20731 that is resolved but it did not fix this exactly, but I see in comments that this is mentioned there as problem. Is there some way in eclipse to setup dependencies in project somehow , that I will be able to normally jump to source when I am in eclipse editor ? I tried numerous ways to solve this.
My setup is:
Android project that has Android Library setup in Android>Library
Android Library project that is within workspace and have dependency on Java library project
Java Library project that is within workspace and is opened as class file instead of source !!!
Including java library project through build path normally (this is causing build to fail)
[2012-03-13 11:07:21 - Taxicar Driver Android] Dx
UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.IllegalArgumentException: already added: Lrensoft/java/collections/GenericIterator;
[2012-03-13 11:07:21 - Taxicar Driver Android] Dx at com.android.dx.dex.file.ClassDefsSection.add(ClassDefsSection.java:123)
[2012-03-13 11:07:21 - Taxicar Driver Android] Dx at com.android.dx.dex.file.DexFile.add(DexFile.java:163)
Not including , project runs ok , but editor is jumping to library class files.
Note that I have to include Android Library project through build path , even though it runs ok without it (it is enough to set is as dependent android library) , but when I remove it I get also those files as class files :) .
So I think that right way is not including projects through build path at all but how then setup project to jump to source ?
I had a similar problem - Open Declaration command would bring up the .class file instead of the .java file. My problem however was occurring when I would use Open Declaration in my Android app project to goto some source in my Android Library project. By following some instructions from a comment on this blog post Eclipse now takes me to the .java file (instead of the .class file) when I use the Open Declaration command.
The instructions are:
Right click on your project, select Properties
Select Java Build Path page
Select Order and Export tab
Select each library project your project depends on, and use Top or Up to move it above the projects outputs. Eg. move all library projects to the top.
That fixed the goto .java instead of .class file issue for me.
(Unfortunately though, after making these changes, this issue appears (at least it did for me): Could not find Library.apk!)
I then setup my workspace as you describe in your question (Android App depends on Android Library project depends on Java Library project) I find that Open Declaration is always taking me to .java files, so it all appears to be working ok in this respect.
Refactoring
I tried to refactor a method which is defined in a class in the Android Library. A popup with a "problem" of
Binary references to a refactored element have been found. They will
not be updated, which may lead to problems if you proceed.
However after pressing Continue the refactoring took place without any issues.
I then tried to refactor a method which is defined in a class in the Java Library. I didn't get any popups this time, and the refactoring worked.
The java library aspect might just work these days because the bugs you guys mentioned have been fixed... (I am using Eclipse 4.2.0 with ADT 20.0.3). I thought I would add this answer however incase it helps someone out with issues of Open Declaration jumping to .class instead of .java file.
I found solution. I have to create Android library from my java library as well and then include it as android library as well as Java library , Then I have to reorder build path export items so Android "Library Projects” are last . And well not much work, Now even rename refactoring works , with some warning but works :) , Well I am happy developer again.