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BUILDING ANDROID APPSBUILDING ANDROID APPSWITH GRADLEWITH GRADLEGREACH 2015, MadridRené GröschkePrincipal Engineer Gradleware
INTRO, DEMO & FORECASTINTRO, DEMO & FORECAST
WHY A NEW BUILDWHY A NEW BUILDSYSTEM?SYSTEM?
GRADLE 2.3GRADLE 2.3RELEASED 16TH FEBRUARY 2015RELEASED 16TH FEBRUARY 2015
OLD ANDROID BUILDSOLD ANDROID BUILDSTwo (official) build mechanism
ADT (Eclipse based)AntMaven
Customization?
Nothing in ADTManually hacking xml in ant scripts
REQUIREMENTS OF THEREQUIREMENTS OF THENEW BUILD SYSTEMNEW BUILD SYSTEM
Use same system forCommandLineCI ServerIDE
Support for application/library variantsDependency ManagementProvide a plugin ecosystem
WHY GRADLEWHY GRADLEAllows custom DSL to express build logicVery flexible for customizationWell integrated with CI ecosystem (Ant, Maven, Ivy, CIserver)Allow User / 3Party tools to configure, extend andcustomize the build processTooling API for IDE integration...
GRADLE IN A NUTSHELLGRADLE IN A NUTSHELLapply plugin:'java'
version = file("version.txt").text
task helloWorld << { println "Hello World - version '$version'!"}
THE ANDROID GRADLE PLUGINTHE ANDROID GRADLE PLUGINMINIMAL ANDROID BUILDMINIMAL ANDROID BUILD
plugins { id 'com.android.application' version '1.1.+'}
android { compileSdkVersion 22 buildToolsVersion '22.0.1'}
>gradle check assemble>gradle build
THE ANDROID GRADLE PLUGINTHE ANDROID GRADLE PLUGINBASIC BUILD CUSTOMIZATIONBASIC BUILD CUSTOMIZATION
android { compileSdkVersion 22 buildToolsVersion '22.0.1'
defaultConfig { versionCode 12 versionName "2.0" minSdkVersion 19 targetSdkVersion 22 multiDexEnabled = true }}
THE ANDROID GRADLE PLUGINTHE ANDROID GRADLE PLUGINREMEMBER, IT'S GROOVY!REMEMBER, IT'S GROOVY!
def calculateVersionName() { ...}android { compileSdkVersion 22 buildToolsVersion '22.0.1'
defaultConfig { versionName calculateVersionName() }}
BUILD TYPESBUILD TYPES"controls how an app is built"
Customize app parametersdebuggable flagnative debug compilation flagpackage suffixdebug signingproguard options2 default types (debug + release)
Source code + resources overlayCustom dependencies
PRODUCT FLAVORSPRODUCT FLAVORS"a way to generate several versions of the same app"
Customize app parameterspackage namemin/targetSdkVersionversionCodeNamesigning info
Source code + resources overlayCustom dependencies
BUILD VARIANTSBUILD VARIANTS"a variant is always a flavor + a type"
debug releasefree free-debug free-release
payed payed-debug payed-release
BUILD VARIANTS IIBUILD VARIANTS IIPRODUCT FLAVOR GROUPSPRODUCT FLAVOR GROUPS
debug releasefree x86 free-x86-debug free-x86-release
ARM free-ARM-debug free-ARM-release
payed x86 payed-x86-debug payed-x86-release
ARM payed-ARM-debug payed-ARM-release
FLAVOR GROUPSFLAVOR GROUPS
flavorDimensions "group1", "group2"
productFlavors { arm { flavorDimension "group1" } x86 { flavorDimension "group1" } free { flavorDimension "group2" } pro { flavorDimension "group2" }}
SOURCE CODE + RESOURCES OVERLAYSOURCE CODE + RESOURCES OVERLAY
~/dev/androidApp/src>tree |____main | |____java | |____res |____androidTest | |____java | |____res |____free | |____java | |____res |____debug | |____java ~/dev/androidApp/src>
Build Type > Product Flavor > main
DEMO IDEMO IVARIANTS IN ACTIONVARIANTS IN ACTION
BUILD CUSTOMIZATION IBUILD CUSTOMIZATION IDEX CONFIGURATIONDEX CONFIGURATION
android { dexOptions { incremental true preDexLibraries = false jumboMode = false }}
BUILD CUSTOMIZATION IIBUILD CUSTOMIZATION IIAAPT CONFIGURATIONAAPT CONFIGURATION
android { aaptOptions { noCompress 'foo', 'bar' ignoreAssetsPattern "!.svn:!.git:!.ds_store:!*.scc" }}
BUILD CUSTOMIZATION IIIBUILD CUSTOMIZATION IIIAND MOREAND MORE
lintjava compile optionsproguard
DEMO IIDEMO IIMANIPULATING TASKSMANIPULATING TASKS
TESTINGTESTINGno separate test project neededvariant aware testsrun against (all) connected devicesexperimental unit test support (android build tools 1.1)
android { // ... testOptions { unitTests.returnDefaultValues = true }}
PLENTY OF MORE THINGSPLENTY OF MORE THINGSandroid libraries (aar)vivid plugin ecosystem
crashlyticsroboelectricstestfairyinstabug...
UNDER CONSTRUCTIONUNDER CONSTRUCTIONNDK supportvariant aware dependency managementsignificant performance improvements
LINKS AND POINTERSLINKS AND POINTERShttp://tools.android.com/tech-docs/new-build-system/user-guidehttps://groups.google.com/forum/#!forum/adt-devgradle.orggradleware.comhttps://github.com/breskeby/android-demo-app
Q&AQ&A
