如何将jar文件（Maven）导入Android Studio？

Question

I want to import a jar file into my Android project.( here is the jar file )
Here are my steps:

1. Add two lines (Class-Path and Main-Class) in MANIFEST.MF file
   Class-Path: libs/nineoldandroids-2.4.0.jar
   Main-Class:com.demos.tencent_qq_ui.Aty.MainActivity

2. Drag the jar file in the directory libs

3. Right click "Add as Library"

4. Edit my build.gradle file
   dependencies {
   compile fileTree(dir: 'libs', include: ['*.jar'])
   compile 'com.android.support:appcompat-v7:22.2.0'
   compile files('libs/nineoldandroids-2.4.0.jar')
   }
   

Rebuild Project --> Run

But it occured an error : Couldn't find or load Main Class com.demos.tencent_qq_ui.Aty.MainActivity

I google it for a long time,but didn't get much useful info ...

Any help in catching my mistake would be greatly appreciated.Thank you!
OS: ubuntu 15.04
IDE:Android Studio 1.2

Answer 1

<dependency>
  <groupId>com.nineoldandroids</groupId>
  <artifactId>library</artifactId>
  <version>2.4.0</version>
</dependency>

I guess this could be transformed to gradle dependency like this:

dependencies {
  compile 'com.nineoldandroids:library:2.4.0'
}

As the library is on maven central this should work. I don't think you need to add anything to your MANIFEST.MF

Make sure you have mavenCentral in your build.gradle like this:

buildscript {
    repositories {
        mavenCentral()
    }
}