組件化的簡單實現，各module可獨立編譯

首先可以先學習通過gradle的配置，去實現各個Module的可獨編譯，具體項目中各個Module的業務拆分和依賴問題，及基礎庫和公衆業務層的處理，還需要更多的業務實踐；

可以在項目的gradle.properties進行開關配置，也可以在build.gradle文件中處理；

# Project-wide Gradle settings.
# IDE (e.g. Android Studio) users:
# Gradle settings configured through the IDE *will override*
# any settings specified in this file.
# For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
org.gradle.jvmargs=-Xmx1536m
# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
# org.gradle.parallel=true
#
#
# 每個組件是否單獨編譯：true爲單獨編譯，false將作爲依賴的module編譯；
#
# compileSeparetelyHomeModule=true
 compileSeparetelyHomeModule=false
# compileSeparetelyChatModule=true
 compileSeparetelyChatModule=false
# compileSeparetelyRecomModule=true
 compileSeparetelyRecomModule=false
# compileSeparetelyMeModule=true
 compileSeparetelyMeModule=false

主項目的build.gradle中的配置如下：

apply plugin: 'com.android.application'

android {
    compileSdkVersion rootProject.ext.android["compileSdkVersion"]

    defaultConfig {
        applicationId "com.windfallsheng.componentsimpleexample"
        minSdkVersion rootProject.ext.android["minSdkVersion"]
        targetSdkVersion rootProject.ext.android["targetSdkVersion"]
        versionCode rootProject.ext.android["versionCode"]
        versionName rootProject.ext.android["versionName"]
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

        javaCompileOptions {
            annotationProcessorOptions {
                arguments = [AROUTER_MODULE_NAME: project.getName()]
            }
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    testImplementation rootProject.ext.dependencies["junit"]
    androidTestImplementation rootProject.ext.dependencies["test-runner"]
    androidTestImplementation rootProject.ext.dependencies["test-espresso-core"]
    implementation rootProject.ext.dependencies["appcompat-v7"]
    implementation rootProject.ext.dependencies["design"]

    if (!compileSeparetelyHomeModule.toBoolean()) {
        implementation project(':module_home')
    }
    if (!compileSeparetelyChatModule.toBoolean()) {
        implementation project(':module_chat')
    }
    if (!compileSeparetelyRecomModule.toBoolean()) {
        implementation project(':module_recom')
    }
    if (!compileSeparetelyMeModule.toBoolean()) {
        implementation project(':module_me')
    }

    implementation project(':lib_res')
    implementation project(':lib_base')
    implementation rootProject.ext.dependencies["arouter-api"]
    annotationProcessor rootProject.ext.dependencies["arouter-compiler"]
}

在一個Module的build.gradle中的配置如下：

if (compileSeparetelyHomeModule.toBoolean()) {
    apply plugin: 'com.android.application'
} else {
    apply plugin: 'com.android.library'
}

android {
    compileSdkVersion rootProject.ext.android["compileSdkVersion"]

    defaultConfig {
        if (compileSeparetelyHomeModule.toBoolean()) {
            applicationId "com.windfallsheng.modulehome"
        }
        minSdkVersion rootProject.ext.android["minSdkVersion"]
        targetSdkVersion rootProject.ext.android["targetSdkVersion"]
        versionCode rootProject.ext.android["versionCode"]
        versionName rootProject.ext.android["versionName"]

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

//        這個配置只能限制xml文件裏的資源，對於圖片資源還是通過命名區別；
        resourcePrefix "home_"

        javaCompileOptions {
            annotationProcessorOptions {
                arguments = [AROUTER_MODULE_NAME: project.getName()]
            }
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

    /*java插件引入了一個概念叫做SourceSets，通過修改SourceSets中的屬性，可以指定哪些源文件
  （或文件夾下的源文件）要被編譯，哪些源文件要被排除。*/
    sourceSets {
        main {
            if (compileSeparetelyHomeModule.toBoolean()) {
                manifest.srcFile 'src/main/module/AndroidManifest.xml'
            } else {
                manifest.srcFile 'src/main/AndroidManifest.xml'
            }
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    testImplementation rootProject.ext.dependencies["junit"]
    androidTestImplementation rootProject.ext.dependencies["test-runner"]
    androidTestImplementation rootProject.ext.dependencies["test-espresso-core"]

    implementation rootProject.ext.dependencies["appcompat-v7"]

    annotationProcessor rootProject.ext.dependencies["arouter-compiler"]
    implementation rootProject.ext.dependencies["eventbus"]

    implementation project(':lib_base')
    implementation project(':lib_res')
//    方式一：
//    if(mode_debug){
//        implementation project(':lib_debug')
//    }else{
//        implementation project(':lib_release')
//    }
//    方式二：
//    debugImplementation project(':lib_debug')
//    releaseImplementation project(':lib_release')
}

在每個Module中添加另一個獨立編譯時使用的AndroidManifest.xml，保證獨立編譯時有啓動的Activity等；

阿里Arouter的使用可以參考官方的文檔說明，不再贅述。

 

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由於作者水平有限，語言描述及代碼實現中難免有紕漏，望各位看官多提寶貴意見！

Hello , World !

感謝所有！