build.gradle

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

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.6.3'
        classpath 'com.novoda:bintray-release:+'
    }
}

//allprojects {
//    repositories {
//        google()
//        jcenter()
//        maven { url "https://jitpack.io" }
//    }
//    //编码 ，javadoc 检查忽略
//    tasks.withType(Javadoc) {
//        options.addStringOption('Xdoclint:none', '-quiet')
//        options.addStringOption('encoding', 'UTF-8')
//    }
//}



def addRepos(RepositoryHandler handler) {
    handler.google()
    handler.jcenter()
    handler.maven { url "https://jitpack.io" }
}

allprojects {
    addRepos(repositories)
    subprojects {
        project.configurations.all {
            resolutionStrategy.eachDependency { details ->
                if (details.requested.group == 'com.android.support'
                        && !details.requested.name.contains('multidex')) {
                    details.useVersion "28.0.0"
                }
            }
        }
    }
// 组件缓存更新时间设置（默认每次build都更新）
    configurations.all {
        resolutionStrategy.cacheDynamicVersionsFor 0, 'minutes' // 动态版本
        resolutionStrategy.cacheChangingModulesFor 0, 'minutes' // 变化模块
    }

    //编码 ，javadoc 检查忽略
    tasks.withType(Javadoc) {
        options.addStringOption('Xdoclint:none', '-quiet')
        options.addStringOption('encoding', 'UTF-8')
    }
}



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