直接在项目中创建config.gradle文件用来存放抽取的依赖

ext {


    android = [
            //sdk版本号
            compileSdkVersion    : 27,
            //最小版本号
            minSdkVersion        : 17,
            //最大版本号
            targetSdkVersion     : 27,
            //版本码
            versionCode          : 1,
            //版本名称
            versionName          : "1.0",

            androidSupportVersion: "27.1.1",
            retrofitVersion      : "2.3.0",
           butterknifeVersion   : "10.2.1",
            rxJavaVersion        : "2.0.7",
            rxAndroidVersion     : "2.0.1",
            okhttpVersion        : "3.12.0",
            butterknifeVersion   : "8.8.1",
            SmartRefreshVersion  : "1.0.4-7",
            bannerVersion        : "1.4.10",
            xrecyclerviewVersion : "1.5.9",
            glideVersion         : "4.8.0",
            glideTransformVersion: "3.3.0",
            gsonVersion          : "2.6.2",
            materialsearchVersion: "1.4.0",
            stickyHeaderVersion  : "1.0.1",
            eventbusVersion      : "3.1.1",
            jsoupVersion         : "1.11.3",
            disklrucacheVersion  : "2.0.2",
            circleImageVersion   : "2.1.0",
            greendaoVersion      : "3.2.0",
            recyclerviewVersion  : "27.1.1",

            recyclerview         : "1.1.0",

    ]



    dependencies = [
             //兼容v7包
            "appcompat-v7"              : "com.android.support:appcompat-v7:${android["androidSupportVersion"]}",
            //tablayout包
            "design"                    : "com.android.support:design:${android["androidSupportVersion"]}",

            "retrofit"                  : "com.squareup.retrofit2:retrofit:${android["retrofitVersion"]}",
            "retrofit-adapter-rxjava"   : "com.squareup.retrofit2:adapter-rxjava2:${android["retrofitVersion"]}",
            "retrofit-converter-gson"   : "com.squareup.retrofit2:converter-gson:${android["retrofitVersion"]}",

            "rxjava"                    : "io.reactivex.rxjava2:rxjava:${android["rxJavaVersion"]}",
            "rxandroid"                 : "io.reactivex.rxjava2:rxandroid:${android["rxAndroidVersion"]}",

            "okhttp"                    : "com.squareup.okhttp3:okhttp:${android["okhttpVersion"]}",

            "butterknife"               : "com.jakewharton:butterknife:${android["butterknifeVersion"]}",
            "butterknife-compiler"      : "com.jakewharton:butterknife-compiler:${android["butterknifeVersion"]}",

            "SmartRefreshLayout"        : "com.scwang.smartrefresh:SmartRefreshLayout:${android["SmartRefreshVersion"]}",
            "SmartRefreshHeader"        : "com.scwang.smartrefresh:SmartRefreshHeader:${android["SmartRefreshVersion"]}",

            "banner"                    : "com.youth.banner:banner:${android["bannerVersion"]}",

            "cardView"                  : "com.android.support:cardview-v7:${android["androidSupportVersion"]}",

            "xrecyclerview"             : "com.jcodecraeer:xrecyclerview:${android["xrecyclerviewVersion"]}",

            "glide"                     : "com.github.bumptech.glide:glide:${android["glideVersion"]}",
            "glideCompiler"       : "com.github.bumptech.glide:compiler:${android["glideVersion"]}",

            "transformations"           : "jp.wasabeef:glide-transformations:${android["glideTransformVersion"]}",

            "gson"                      : "com.google.code.gson:gson:${android["gsonVersion"]}",

            "materialsearchview"        : "com.miguelcatalan:materialsearchview:${android["materialsearchVersion"]}",

            "StickyHeaderDecoration"    : "com.github.qdxxxx:StickyHeaderDecoration:${android["stickyHeaderVersion"]}",

            "eventbus"                  : "org.greenrobot:eventbus:${android["eventbusVersion"]}",

            "jsoup"                     : "org.jsoup:jsoup:${android["jsoupVersion"]}",

            "disklrucache"              : "com.jakewharton:disklrucache:${android["disklrucacheVersion"]}",

            "circleimageview"           : "de.hdodenhof:circleimageview:${android["circleImageVersion"]}",

            "greendao"                  : "org.greenrobot:greendao:${android["greendaoVersion"]}",
            "greendao-generator"        : "org.greenrobot:greendao-generator:${android["greendaoVersion"]}",

 "recyclerview"            : "androidx.recyclerview:recyclerview:${android["recyclerview"]}",
    ]


}

在项目的build.gradle中进行连接 buildscript 的上面

apply from : "config.gradle"

buildscript {
    
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
        

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

module中使用依赖

apply plugin: 'com.android.application'

android {
    //版本号
    compileSdkVersion rootProject.ext.android.compileSdkVersion

    defaultConfig {
        applicationId "com.example.zhao.navigation"

        minSdkVersion rootProject.ext.android.minSdkVersion
        targetSdkVersion rootProject.ext.android.targetSdkVersion
        versionCode rootProject.ext.android.versionCode
        versionName rootProject.ext.android.versionName
 multiDexEnabled true
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'

    implementation rootProject.ext.dependencies["appcompat-v7"]
    implementation rootProject.ext.dependencies["design"]
    implementation rootProject.ext.dependencies["retrofit"]
    implementation rootProject.ext.dependencies["retrofit-adapter-rxjava"]
    implementation rootProject.ext.dependencies["retrofit-converter-gson"]
    implementation rootProject.ext.dependencies["rxjava"]
    implementation rootProject.ext.dependencies["rxandroid"]
    implementation rootProject.ext.dependencies["okhttp"]

    implementation rootProject.ext.dependencies["butterknife"]
    annotationProcessor rootProject.ext.dependencies["butterknife-compiler"]

    implementation rootProject.ext.dependencies["SmartRefreshLayout"]
    implementation rootProject.ext.dependencies["SmartRefreshHeader"]
    implementation rootProject.ext.dependencies["banner"]
    implementation rootProject.ext.dependencies["cardView"]
    implementation rootProject.ext.dependencies["xrecyclerview"]

    implementation rootProject.ext.dependencies["glide"]
    annotationProcessor rootProject.ext.dependencies["glideCompiler"]

    implementation rootProject.ext.dependencies["transformations"]
    implementation rootProject.ext.dependencies["gson"]
    implementation rootProject.ext.dependencies["materialsearchview"]

    implementation rootProject.ext.dependencies["eventbus"]
    implementation rootProject.ext.dependencies["jsoup"]
    implementation rootProject.ext.dependencies["disklrucache"]
    implementation rootProject.ext.dependencies["circleimageview"]
    implementation rootProject.ext.dependencies["greendao"]
    implementation rootProject.ext.dependencies["greendao-generator"]

}