使用Android Studio Gradle实现友盟多渠道打包

<meta-data
    android:name="UMENG_APPKEY"
    android:value="xxxxxxxxxxxxxxxxxxx" /><!--友盟 Appkey 自己应用注册申请来的-->
    <meta-data
      android:name="UMENG_CHANNEL"
      android:value="${UMENG_CHANNEL_VALUE}" /> <!--渠道号，多渠道这里使用了占位符$-->

manifestPlaceholders = [UMENG_CHANNEL_VALUE: "default_channel"]//添加一个默认渠道号

 productFlavors {
    default_channel {}
    huawei {}
    oppo {}
    xiaomi {}
    yiyongbao {}
    vivo {}
    _360 {}
  }

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

apply plugin: 'com.android.application'

android {
  compileSdkVersion 26
  buildToolsVersion "26.0.2"

  defaultConfig {
    applicationId "com.dc.xydemo"
    minSdkVersion 23
    targetSdkVersion 26
    versionCode 1
    versionName "1.0"

    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    manifestPlaceholders = [UMENG_CHANNEL_VALUE: "default_channel"]//添加一个默认渠道号

  }
  productFlavors {
    default_channel {}
    huawei {}
    oppo {}
    xiaomi {}
    yiyongbao {}
    vivo {}
    _360 {}
  }

  productFlavors.all { flavor ->
    flavor.manifestPlaceholders = [UMENG_CHANNEL_VALUE: name]
  }
  buildTypes {
    release {
      minifyEnabled false
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
  }
}

dependencies {
  compile fileTree(dir: 'libs', include: ['*.jar'])
  androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
  })
  compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
  compile 'com.umeng.analytics:analytics:latest.integration'
  testCompile 'junit:junit:4.12'
  compile 'com.squareup.okhttp3:okhttp:3.2.0'
  compile 'com.squareup.okio:okio:1.7.0'
  compile 'junit:junit:4.12'
  compile files('libs/fastjson-1.1.45.android.jar')
  compile 'com.squareup.picasso:picasso:2.5.2'
}