build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    
    repositories {
        google()
        jcenter()
        mavenCentral()
        //    maven { url 'https://maven.google.com' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}
ext {
    android = [compileSdkVersion: 26,
               buildToolsVersion: "27.0.2",
               minSdkVersion    : 14,
               targetSdkVersion : 22]

    dependencies = [
            "junit"                  : "junit:junit:4.12",
            "support-v4"             : "com.android.support:support-v4:26.1.0",
            "appcompat-v7"           : "com.android.support:appcompat-v7:26.1.0",
            "recyclerview-v7"        : "com.android.support:recyclerview-v7:26.1.0",
            //圆角和阴影的布局
            "cardview-v7"            : "com.android.support:cardview-v7:26.1.0",
            "okhttp"                :  "com.squareup.okhttp3:okhttp:3.8.0",
            "gson"                   : "com.google.code.gson:gson:2.8.0",
            //约束布局
            "constraint-layout"      : "com.android.support.constraint:constraint-layout:1.0.2",
            //注解框架
            "butterknife"            : "com.jakewharton:butterknife:8.6.0",
            "butterknife-compiler"   : "com.jakewharton:butterknife-compiler:8.6.0",
            "rxjava"                 : "io.reactivex:rxjava:1.1.2",
            "rxandroid"              : "io.reactivex:rxandroid:1.2.0",
            //google框架文件
            "design"                 : "com.android.support:design:26.1.0",

            "multidex"               : "com.android.support:multidex:1.0.0",

    ]
}
allprojects {
    repositories {
        google()
        jcenter()
        mavenCentral()
        //    maven { url 'https://maven.google.com' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
//        LRecyclerView 使用
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}