生成keystore ：

 http://blog.sina.com.cn/s/blog_4b93170a0100qp7z.html

win7使用开发工具Eclipse，gradle多渠道打包

注意：
1、配置好gradle的环境变量（在path中配置他的bin目录）。
2、配置好ANDROID_HOME 的环境变量。
3、利用Eclipse工具自动生成build.gradle文件。选择工程右击：Export--> Android --> Generate gradle build file --> 接下来的步骤是生成build.gradle.

代码示例：聚超值

jucaozhi:

apply plugin: 'android'

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    compile project(':pcgCommon')
}

android {
    compileSdkVersion 17
    buildToolsVersion "21.0.1"

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

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')


        lintOptions {
            abortOnError false
        }
        // Move the build types to build-types/<type>
        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
        // This moves them out of them default location under src/<type>/... which would
        // conflict with src/ being used by the main source set.
        // Adding new build types or product flavors should be accompanied
        // by a similar customization.
        //debug.setRoot('build-types/debug')
        //release.setRoot('build-types/release')
    }
    
    
    signingConfigs {
        //加入keystore签名
        myConfig {
            //文件路径和文件名
            storeFile file("gradle.keystore")
            //keystore文件密码
            storePassword "gradle"
            //别名
            keyAlias "gradle.keystore"
            //别名密码
            keyPassword "gradle"
        }
    }

    buildTypes {
        debug {
            signingConfig signingConfigs.debug
        }
       /* release {
            signingConfig signingConfigs.release
        }*/
    }

    productFlavors {
     //加入渠道号
        GooglePlay{}
        wandoujia{}
        360zhushou{}
    }
    
}

pcgCommon:

apply plugin: 'android-library'

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
}

android {
    compileSdkVersion 17
    buildToolsVersion "21.0.1"

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

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')

        // Move the build types to build-types/<type>
        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
        // This moves them out of them default location under src/<type>/... which would
        // conflict with src/ being used by the main source set.
        // Adding new build types or product flavors should be accompanied
        // by a similar customization.
        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')

        lintOptions {
            abortOnError false
        }
    }
}

命令

输入gradle build
例如：进入到juchaozhi目录下，输入gradle build

错误提示

1、图片资源文件中可能误。修改建议：删除图片文件或者修改格式
2、values文件中，可能value，string等里面有重复的类容。修改建议，删除重复类容
3、例如依赖包“pcgComon ”中的<application>....</application>会与“jucaozhi”中的<application>发生冲突，修改建议：注释掉依赖包中<application>....</application>
4、在打包过程中会出现很多错误，看dos窗口输出的错误进行修改就可以了。

建议

使用android studio开发工具打包，该工具会直接提示错误位置，节省我们找错误的原因。

以上由石景城测试整理，陈鹏也整理了一份 下载

更多详细的代码解释：

http://trac.pc.com.cn/gzandroid/wiki/gradle