lib build

    buildscript {
       repositories {
           mavenCentral()
       }

       dependencies {
           classpath 'com.android.tools.build:gradle:0.5.+'
       }
    }

    apply plugin: 'android-library'

    dependencies {
       compile 'com.android.support:support-v4:18.0.+'
    }

    android {
    compileSdkVersion 17
    buildToolsVersion "18.0.1"

    defaultConfig {
        minSdkVersion 7
        targetSdkVersion 16
    }

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            res.srcDirs = ['res']
        }
      }
    }