AndroidStudio中module中的BuildConfig.Debug总为false

在Android的实际开发中，一般会有这样的需求，debug和release版本不同，接口地址不同，同时控制日志是否打印等，系统为我们提供了一个很方便的类BuildConfig可以自动判断是否是debug模式。
有了BuildConfig.DEBUG之后，你在代码中可以直接写入
if (BuildConfig.DEBUG) {

     Log.d(TAG, "output something"); 

}

在平时直接运行代码的时候BuildConfig.DEBUG的值自动为true,
在发布后BuildConfig.DEBUG的值自动为false,
可以说是非常方便。
可是as中无论你是debug还是release，model中的DEBUG一直为false（也许是as的bug）
解决方案：1。手动修改modle中的defaultPublishConfig “release”或debug，但是每次运行debug或者release的时候都需要更改一下
2.module中配置
android {
publishNonDefault true
}
app中配置
dependencies {
releaseCompile project(path: ':library', configuration: 'release')
debugCompile project(path: ':library', configuration: 'debug')
}
3、如果module都引用统一的base modlue的话，在basemodule中定义一个静态变量Config.DEBUG，然后再application初始化的时候把app的BuildConfig.DEBUG的值赋值给Config.DEBUG,
4、app中
// Application
apply plugin: 'android'

repositories {
mavenCentral()
}

android {
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_7
    targetCompatibility JavaVersion.VERSION_1_7
}

defaultConfig {
    minSdkVersion rootProject.ext.minSdkVersion
    targetSdkVersion rootProject.ext.targetSdkVersion
    versionCode 1
    versionName "1.0 alpha"

    rootProject.ext.variantRelease = false //default  we are in debug mode, will be overriden on task execution
}

buildTypes {
    release {
        runProguard false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
    }
    debug {
        versionNameSuffix ' dev'
    }
}

}

dependencies {
// ui
compile 'com.android.support:support-v4:+'
// local jars
compile fileTree(dir: 'libs', include: ['*.jar'])
}

// Trigger build type (as soon as possible) and make some action via corresponding tasks

project.afterEvaluate {
tasks.all { task ->
if (task.name =~ /check.*Manifest/) {
if (task.name =~ /[dD]ebug/) {
task.dependsOn(onDebugTypeTriggered)
} else {
task.dependsOn(onReleaseTypeTriggered)
}
}
}
}

task onDebugTypeTriggered << {
rootProject.ext.variantRelease = false
}

task onReleaseTypeTriggered << {
rootProject.ext.variantRelease = true
}

module中
// Library
apply plugin: 'android-library'

repositories {
mavenCentral()
}

android {
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_7
    targetCompatibility JavaVersion.VERSION_1_7
}

defaultConfig {
    minSdkVersion rootProject.ext.minSdkVersion
    targetSdkVersion rootProject.ext.targetSdkVersion
}

}

// Trigger BuildConfig creation

project.afterEvaluate {
tasks.all { task ->
if (task.name =~ /generate.*BuildConfig/) {
task.dependsOn(propagateBuildConfig)
}
}
}

task propagateBuildConfig << {
project.android.buildTypes.all { type ->
type.buildConfigField "boolean", "RELEASE", isVariantRelease().toString()
}
}

def isVariantRelease() {
return rootProject.ext.variantRelease
}