一般在项目较小的时候，我们的build.gradle文件看着比较直爽，简介。
但是项目慢慢变大，依赖配置越来越多的时候在去浏览，修改build.gradle会觉得头大。
这是谷歌实例的一个项目，其app build.gradle配置（这里面只是做了几个简单配置）如下：
apply plugin: 'com.android.application'
android {
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion
defaultConfig {
applicationId "com.example.android.architecture.blueprints.todomvpdagger"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 1
versionName "1.0"
testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
}
buildTypes {
debug {
minifyEnabled true
// Uses new built-in shrinker http://tools.android.com/tech-docs/new-build-system/built-in-shrinker
useProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
testProguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguardTest-rules.pro'
}
release {
minifyEnabled true
useProguard true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
testProguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguardTest-rules.pro'
}
}
flavorDimensions "default"
// If you need to add more flavors, consider using flavor dimensions.
productFlavors {
mock {
dimension "default"
applicationIdSuffix = ".mock"
}
prod {
dimension "default"
}
}
// Remove mockRelease as it's not needed.
android.variantFilter { variant ->
if (variant.buildType.name == 'release'
&& variant.getFlavors().get(0).name == 'mock') {
variant.setIgnore(true)
}
}
// Always show the result of every unit test, even if it passes.
testOptions.unitTests.all {
testLogging {
events 'passed', 'skipped', 'failed', 'standardOut', 'standardError'
}
}
}
/*
Dependency versions are defined in the top level build.gradle file. This helps keeping track of
all versions in a single place. This improves readability and helps managing project complexity.
*/
dependencies {
// App's dependencies, including test
compile "com.android.support:appcompat-v7:$rootProject.supportLibraryVersion"
compile "com.android.support:cardview-v7:$rootProject.supportLibraryVersion"
compile "com.android.support:design:$rootProject.supportLibraryVersion"
compile "com.android.support:recyclerview-v7:$rootProject.supportLibraryVersion"
compile "com.android.support:support-v4:$rootProject.supportLibraryVersion"
compile "com.android.support.test.espresso:espresso-idling-resource:$rootProject.espressoVersion"
compile "com.google.guava:guava:$rootProject.guavaVersion"
compile "android.arch.persistence.room:runtime:$rootProject.roomVersion"
annotationProcessor "android.arch.persistence.room:compiler:$rootProject.roomVersion"
// Dagger dependencies
annotationProcessor "com.google.dagger:dagger-compiler:$rootProject.daggerVersion"
provided 'org.glassfish:javax.annotation:10.0-b28'
compile "com.google.dagger:dagger:$rootProject.daggerVersion"
compile "com.google.dagger:dagger-android:$rootProject.daggerVersion"
compile "com.google.dagger:dagger-android-support:$rootProject.daggerVersion"
annotationProcessor "com.google.dagger:dagger-android-processor:$rootProject.daggerVersion"
// Dependencies for local unit tests
testCompile "junit:junit:$rootProject.ext.junitVersion"
testCompile "org.mockito:mockito-all:$rootProject.ext.mockitoVersion"
testCompile "org.hamcrest:hamcrest-all:$rootProject.ext.hamcrestVersion"
// Android Testing Support Library's runner and rules
androidTestCompile "com.android.support.test:runner:$rootProject.ext.runnerVersion"
androidTestCompile "com.android.support.test:rules:$rootProject.ext.rulesVersion"
androidTestCompile "android.arch.persistence.room:testing:$rootProject.roomVersion"
// Dependencies for Android unit tests
androidTestCompile "junit:junit:$rootProject.ext.junitVersion"
androidTestCompile "org.mockito:mockito-core:$rootProject.ext.mockitoVersion"
androidTestCompile "com.google.dexmaker:dexmaker:$rootProject.ext.dexmakerVersion"
androidTestCompile "com.google.dexmaker:dexmaker-mockito:$rootProject.ext.dexmakerVersion"
// Espresso UI Testing
androidTestCompile "com.android.support.test.espresso:espresso-core:$rootProject.espressoVersion"
androidTestCompile "com.android.support.test.espresso:espresso-contrib:$rootProject.espressoVersion"
androidTestCompile "com.android.support.test.espresso:espresso-intents:$rootProject.espressoVersion"
androidTestCompile "com.android.support.test.espresso.idling:idling-concurrent:$rootProject.espressoVersion"
compile "com.android.support.test.espresso:espresso-idling-resource:$rootProject.espressoVersion"
// Resolve conflicts between main and test APK:
androidTestCompile "com.android.support:support-annotations:$rootProject.supportLibraryVersion"
androidTestCompile "com.android.support:support-v4:$rootProject.supportLibraryVersion"
androidTestCompile "com.android.support:recyclerview-v7:$rootProject.supportLibraryVersion"
androidTestCompile "com.android.support:appcompat-v7:$rootProject.supportLibraryVersion"
androidTestCompile "com.android.support:design:$rootProject.supportLibraryVersion"
androidTestCompile "com.google.code.findbugs:jsr305:3.0.1"
}
其中配置中引用的配置在项目build.gradle中配置
buildscript {
repositories {
jcenter()
google()
}
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
}
}
allprojects {
repositories {
jcenter()
google()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
// Define versions in a single place
ext {
// Sdk and tools
// Support library and architecture components support minSdk 14 and above.
minSdkVersion = 14
targetSdkVersion = 26
compileSdkVersion = 26
buildToolsVersion = '26.0.2'
// App dependencies
supportLibraryVersion = '26.1.0'
guavaVersion = '18.0'
junitVersion = '4.12'
mockitoVersion = '1.10.19'
powerMockito = '1.6.2'
hamcrestVersion = '1.3'
runnerVersion = '1.0.1'
rulesVersion = '1.0.1'
espressoVersion = '3.0.1'
roomVersion = "1.0.0"
daggerVersion = '2.11'
dexmakerVersion = '1.2'
}
//When there is an error in code generation you will may see
//lots of errors due too missing generated code in your logs, we increase
//how many errors are shown here so that the real error is visible when it is near the end
allprojects {
afterEvaluate {
tasks.withType(JavaCompile.class) {
options.compilerArgs << "-Xmaxerrs" << "500"
}
}
}
可以看到谷歌并没有对其进行太多的抽离只做了些配置版本的抽离，并未对其进行实质性的有优化。
下面是一个小型项目其中里面用到很多三方库依赖。其app build.gradle配置如下：
apply plugin: 'com.android.application'
//apply plugin: 'me.tatarka.retrolambda'
android {
compileSdkVersion rootProject.ext.android.compileSdkVersion
buildToolsVersion rootProject.ext.android.buildToolsVersion
defaultConfig {
applicationId rootProject.ext.android.applicationId
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"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
// compileOptions {
// sourceCompatibility JavaVersion.VERSION_1_8
// targetCompatibility JavaVersion.VERSION_1_8
// }
buildToolsVersion '26.0.2'
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile rootProject.ext.dependencies["appcompat-v7"]
compile rootProject.ext.dependencies["support-v4"]
compile rootProject.ext.dependencies["cardview"]
compile rootProject.ext.dependencies["design"]
compile rootProject.ext.dependencies["recyclerview"]
compile rootProject.ext.dependencies["retrofit2"]
compile rootProject.ext.dependencies["converter-scalars"]
compile rootProject.ext.dependencies["converter-gson"]
compile rootProject.ext.dependencies["adapter-rxjava2"]
compile rootProject.ext.dependencies.rxlifecycle2
compile rootProject.ext.dependencies.rxlifecomponents
compile rootProject.ext.dependencies["dagger"]
annotationProcessor rootProject.ext.dependencies["dagger-compiler"]
compile rootProject.ext.dependencies["rxjava"]
compile rootProject.ext.dependencies["rxandroid"]
compile rootProject.ext.dependencies["rxbinding2"]
compile rootProject.ext.dependencies["constraint-layout"]
compile rootProject.ext.dependencies["ultra-ptr"]
compile rootProject.ext.dependencies["fragmentation"]
compile rootProject.ext.dependencies["butterknife"]
annotationProcessor rootProject.ext.dependencies["butterknife-compiler"]
compile rootProject.ext.dependencies["BaseAdapterHelper"]
compile rootProject.ext.dependencies["glide"]
compile rootProject.ext.dependencies["banner"]
compile rootProject.ext.dependencies["viewanimator"]
compile rootProject.ext.dependencies["FlycoDialog"]
compile rootProject.ext.dependencies["PhotoView"]
compile rootProject.ext.dependencies["videoplayer"]
compile rootProject.ext.dependencies["lottie"]
compile rootProject.ext.dependencies["progressbar"]
compile rootProject.ext.dependencies["swipebacklayout"]
compile rootProject.ext.dependencies["tablayout"]
compile rootProject.ext.dependencies["androideventbus"]
compile rootProject.ext.dependencies["gif-drawable"]
compile rootProject.ext.dependencies["litepal"]
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
}
repositories {
mavenCentral()
}
看到这里会发现这里面的东西已经和我们平常看到的变化很大了
其这里做的是吧真正依赖的库放到了一个confid.gradle（位置是和项目的build.gradle同级）的文件中
ext {
android = [
compileSdkVersion : 25,
buildToolsVersion : "25.0.2",
applicationId : "com.will.weiyue",
minSdkVersion : 19,
targetSdkVersion : 25,
versionCode : 1,
versionName : "1.0"
]
dependVersion = [
support: "25.3.1"
]
dependencies = [
//android-support
"support-v4" : "com.android.support:support-v4:${dependVersion.support}",
"appcompat-v7" : "com.android.support:appcompat-v7:${dependVersion.support}",
"design" : "com.android.support:design:${dependVersion.support}",
"recyclerview" : "com.android.support:recyclerview-v7:${dependVersion.support}",
"cardview" : "com.android.support:cardview-v7:${dependVersion.support}",
//http
"retrofit2" : "com.squareup.retrofit2:retrofit:2.1.0",
"converter-scalars" : "com.squareup.retrofit2:converter-scalars:2.1.0",
"converter-gson" : "com.squareup.retrofit2:converter-gson:2.1.0",
"adapter-rxjava2" : "com.squareup.retrofit2:adapter-rxjava2:2.2.0",
//httpcache
"rxCache" : "com.github.VictorAlbertos.RxCache:runtime:1.8.0-2.x",
"Jolyglot-gson" : "com.github.VictorAlbertos.Jolyglot:gson:0.0.3",
//rxjava
"rxjava" : "io.reactivex.rxjava2:rxjava:2.0.6",
"rxandroid" : "io.reactivex.rxjava2:rxandroid:2.0.1",
"rxbinding2" : "com.jakewharton.rxbinding2:rxbinding:2.0.0",
rxlifecycle2 : "com.trello.rxlifecycle2:rxlifecycle:2.1.0",
rxlifecomponents : "com.trello.rxlifecycle2:rxlifecycle-components:2.1.0",
//dagger2
"dagger" : "com.google.dagger:dagger:2.7",
"dagger-compiler" : "com.google.dagger:dagger-compiler:2.7",
//ui
"constraint-layout" : "com.android.support.constraint:constraint-layout:1.0.2",
"fragmentation" : "me.yokeyword:fragmentation:1.0.0",
"butterknife" : "com.jakewharton:butterknife:8.8.1",
"butterknife-compiler" : "com.jakewharton:butterknife-compiler:8.8.1",
"ultra-ptr" : "in.srain.cube:ultra-ptr:1.0.11",
"bottom-bar" : "com.roughike:bottom-bar:2.3.1",
"BaseAdapterHelper" : "com.github.CymChad:BaseRecyclerViewAdapterHelper:2.9.24",
"glide" : "com.github.bumptech.glide:glide:4.0.0-RC1",
"banner" : "com.youth.banner:banner:1.4.9",
"viewanimator" : "com.github.florent37:viewanimator:1.0.5",
"tablayout" : "com.flyco.tablayout:FlycoTabLayout_Lib:2.1.2@aar",
"FlycoDialog" : "com.flyco.dialog:FlycoDialog_Lib:1.3.2@aar",
"richtext" : "com.zzhoujay.richtext:richtext:2.5.2",
"transformations" : "jp.wasabeef:glide-transformations:2.0.2",
"PhotoView" : "com.githu b.chrisbanes:PhotoView:2.1.2",
"videoplayer" : "fm.jiecao:jiecaovideoplayer:5.7",
"lottie" : "com.airbnb.android:lottie:2.1.0",
"progressbar" : "me.zhanghai.android.materialprogressbar:library:1.4.1",
"transitionhelper" : "me.immortalz:transitionhelper:1.0.6",
"swipebacklayout" : "cn.bingoogolapple:bga-swipebacklayout:1.1.0@aar",
"gif-drawable" : "pl.droidsonroids.gif:android-gif-drawable:1.2.8",
//Event
"androideventbus" : "org.simple:androideventbus:1.0.5.1",
//db
"litepal" : "org.litepal.android:core:1.5.1",
"retrolambda" : "me.tatarka:gradle-retrolambda:3.7.0",
]
}
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