gradle打包android （实现外部导入签名文件、多渠道打包、导入ant脚本）

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.8.+'
    }
}
apply plugin: 'android'

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

android {
    compileSdkVersion 19
    buildToolsVersion "19.0.3"

    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')
    }
}

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.12.+'
    }
}
apply plugin: 'android'

ant.importBuild 'build.xml'  //这里导入了ant的脚本

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

android {
    compileSdkVersion 19
    buildToolsVersion "20.0.0"
    
    
     signingConfigs {       //签名，这里的文件名和密码是错的，后面还会有从外部导入的语句
   		myConfig {
        //绝对路径和相对路径都可以
        	storeFile file("E:\\keystore\\mydemo.keystore")  //签名文件
        	storePassword "276021750"                       //密码
        	keyAlias "mydemo.keystore"                       
       		keyPassword "111"
  	 	}
 	 }
    
    
     buildTypes{
      release {           //这里就是用来生成apk的步骤，具体看备注
      //1.添加签名
      signingConfig  signingConfigs.myConfig
      //2.runProguard 执行混淆代码
      runProguard true
      //混淆规则文件
       proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
      }	
  	 }
    
    
      productFlavors {      //这里是多渠道的地方，AndroidManifest.xml文件里面要有标示，下面会贴文件
        yingyongbao {  
            manifestPlaceholders = [ CHANNEL_NAME:"YINGYONGBAO"]  
        }  
        umeng {  
            manifestPlaceholders = [ CHANNEL_NAME:"UMENG" ]  
        }  
        wandoujia {  
            manifestPlaceholders = [ CHANNEL_NAME:"WANDOUJIA" ]  	
        }  
    }  
    
    allprojects {       //在这里是外部导入文件，然后更改本身文件的属性，这里只改了签名，还可以改其他的
    afterEvaluate { project ->
        def propsFile = rootProject.file('E:\\keystore\\keystore.properties')
        def configName = 'myConfig'

        if (propsFile.exists() && android.signingConfigs.hasProperty(configName)) {
            def props = new Properties()
            props.load(new FileInputStream(propsFile))
            android.signingConfigs[configName].storeFile = file(props['storeFile'])
            android.signingConfigs[configName].storePassword = props['storePassword']
            android.signingConfigs[configName].keyAlias = props['keyAlias']
            android.signingConfigs[configName].keyPassword = props['keyPassword']
        }
    }
}
    

    
    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')
    }
}

 <meta-data
            android:name="UMENG_CHANNEL"
            android:value="${CHANNEL_NAME}" />

	<target name="deploy">   
    <!-- 	<replaceregexp flags="g" byline="true">   
        	 <regexp pattern="public static final Host host = Host.Development;" />   
        	 substitution expression 中是替换的值，替换的值都定义在相对应的配置文件中  
        	 <substitution expression="public static final Host host = Host.Test;" />  
         	fileset 属性中的 dir 用来指定被替换文件所在的目录  
          	includes 用来指定要替换哪个文件。   
         	<fileset dir="./src/net/xtion/crm/base" includes="CrmAppContext.java" />   
    	</replaceregexp> --> 
    	<replace encoding="utf-8" dir="./src/com/example/learn723">
			<include name="MainActivity.java" />
			<replacefilter token="public static final String host = "Host.Test";" value="public static final String host = "Host.abc";" />
		</replace>
	</target>  

storeFile=E:\\keystore\\mydemo.keystore
storePassword=276021750
keyPassword=276021750
keyAlias=mydemo.keystore