问题
I cannot get ZXing to work in Android Studio. I have generated the core.jar file using Ant, and the same jar worked fine using Eclipse. Now I must get it working in Android Studio (0.3.2).
Here is what I have tried but to no avail so far:
- Copy the core.jar file into the PROJECTNAMEProject/PROJECTNAME/libs/
- Right click > Add as library
- Choose Project Library as the 'Level' in the Create Library dialog, with 'Add to module' set to the PROJECTNAME folder. I have tried the Global and Module library types as well as Project library.
- Add
compile files('libs/core.jar')to the dependencies section of the PROJECTNAMEProject/PROJECTNAME/build.gradle
The error I'm getting seems to be telling me I'm including the jar twice:
Gradle: UNEXPECTED TOP-LEVEL EXCEPTION: Gradle: java.lang.IllegalArgumentException: already added: Lcom/google/zxing/BarcodeFormat;
回答1:
If you add the compile files('libs/core.jar') to build.gradle, the only other thing you should need to do is click the Sync Project with Gradle Files button in the toolbar.
来源：https://stackoverflow.com/questions/20334572/android-studio-0-3-2-and-zxing