Gradle配置分析

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TopicLevel的gradle 

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.2'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}
allprojects {
    repositories {
        jcenter()
    }
}
task clean(type: Delete) {
    delete rootProject.buildDir
}

Mudule level的build.gradle 

apply plugin: 'com.android.application'

android {
    compileSdkVersion 20
    buildToolsVersion "24.0.0"


    compileOptions{
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    defaultConfig {
        applicationId "com.lyc.study"
        minSdkVersion 15
        targetSdkVersion 20
        versionCode 1
        versionName "1.0"
        jackOptions{
            enabled true
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:support-v4:+'
    compile 'com.android.support:support-annotations:22.2.0'
    compile 'com.android.support:support-v13:20.1.1'
}

以上是标准的打包方式,下面是常用的我们自定义的内容 

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

    // compile 'com.android.support:multidex:1.0.1'
    compile 'top.zibin:Luban:1.0.9'
    debugCompile 'com.bugtags.library:bugtags-lib:latest.integration'

    testCompile 'junit:junit:4.12'

}

android {
    compileSdkVersion 21
    buildToolsVersion '23.0.2'

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

        test.setRoot('test')

        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')
    }

    signingConfigs {
        debug {
            // 请配置好pub.key及其密码，或者改为使用debug.keystore
            storeFile file('pub.key') // storeFile file('debug.keystore')
            storePassword STORE_PASSWORD
            keyAlias KEY_ALIAS
            keyPassword KEY_PASSWORD
        }
        release {
            storeFile file('pub.key')
            storePassword STORE_PASSWORD
            keyAlias KEY_ALIAS
            keyPassword KEY_PASSWORD
        }
    }

    buildTypes {
        debug {
            buildConfigField "String", "RELEASE_TIME", "\"Not yet\""
            buildConfigField "boolean", "DEVELOP_MODE", "true"
            signingConfig signingConfigs.debug

            ndk{
                abiFilters 'armeabi', 'armeabi-v7a', 'x86' //,'arm64-v8a', 'x86_64', 'mips', 'mips64'
            }
        }
        release {
            buildConfigField "String", "RELEASE_TIME", "\"2017/1/1\"" //  发布时修改为当天日期
            buildConfigField "boolean", "DEVELOP_MODE", "false" // 关闭开发者模式
            proguardFiles 'proguard.cfg'
            minifyEnabled true
            shrinkResources true
            debuggable false
            jniDebuggable false
            signingConfig signingConfigs.release

            applicationVariants.all { variant ->
                variant.outputs.each { output ->
                    def outputFile = output.outputFile
                    if (outputFile != null && outputFile.name.endsWith('.apk')) {
                        // APK命名格式 Going-release.apk TODO 发布时使用
                        def fileName = "Going-v${defaultConfig.versionName}-${defaultConfig.versionCode}-release.apk"
//                         def fileName = "Going.apk"
                        output.outputFile = new File(outputFile.parent, fileName)
                    }
                }
            }
        }
    }

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 22  // 请勿随意改动 //Android 6.0系统默认为targetSdkVersion小于23的应用默认授予了所申请的所有权限
        versionCode 1000
        versionName "1.0.0"
        //manifestPlaceholders = [ UMENG_CHANNEL_VALUE:"googleMarket" ]
        multiDexEnabled false
        multiDexKeepProguard file('multiDexKeep.pro')
        resConfigs "en", "zh_CN", "zh_TW" //暂时限定语言, 当前情况下缩小大概 0.2M TODO googlePlay 版本取消限制
    }

    productFlavors {
          own {}
          googleMarket {}

          tencent {}
          baidu {}


    }

//    productFlavors.all { flavor ->
//        flavor.manifestPlaceholders = [ UMENG_CHANNEL_VALUE:name ]
//    }

    packagingOptions {
        exclude 'META-INF/LICENSE.txt'
    }

    // 可以适当的打开Lint，检查是否存在隐藏问题
    lintOptions {
        checkReleaseBuilds false
        abortOnError false
    }

    android.dexOptions {
        jumboMode = true
        javaMaxHeapSize "2g"
        maxProcessCount 8
    }

}

// 替换编码方式，否则编译可能有中文乱码
tasks.withType(org.gradle.api.tasks.compile.JavaCompile) {
    options.encoding = "UTF-8"
}

相对于标准的我们在 android Task中新增了sourceSets这个Task制定了一些文件夹的目录，如果工程目录是标注的就不需要设置了

在build.gradle同级新建一个gradle.properties
里面可以用来存放build.gradle里面的一些参数
STORE_PASSWORD=nico
KEY_ALIAS=nick
KEY_PASSWORD=nico

这个地方对应的脚本是signingConfigs》debug里面的参数

buildTypes 》debug 中的buildConfigField参数则会在编译时候

gradle01

buildConfigField "String", "RELEASE_TIME", "\"Not yet\""
buildConfigField "boolean", "DEVELOP_MODE", "true"

会在编译时候生成并存放在build/generated/source/buildConfig/…BuildConfig.java 

public final class BuildConfig {
  public static final boolean DEBUG = Boolean.parseBoolean("true");
  public static final String APPLICATION_ID = "com.lyc.study";
  public static final String BUILD_TYPE = "debug";
  public static final String FLAVOR = "own";
  public static final int VERSION_CODE = 100;
  public static final String VERSION_NAME = "1.0.0";
  // Fields from build type: debug
  public static final boolean DEVELOP_MODE = true;
  public static final String RELEASE_TIME = "Not yet";
}

可以参考友盟的多渠道打包（github）

一个介绍gradle比较好的网站
http://stormzhang.com/posts/

https://segmentfault.com/a/1190000006915937

这两个网站都是一系列的教程，建议一个一个的看