Gradle Summit 2017 - Gradle Android recipes explained

Android developers often copy & paste Gradle snippets to their projects without full understanding of how they work. This presentation will explain the basics of Groovy and Gradle, and analyze some of the popular snippets, explaining what's going on in them and how we can improve on them.

Transcript

1. Łukasz Wasylkowski Gradle Android recipes explained
2. Groovy syntax def printByClosure(String param, Closure closure) { closure(param) }
3. Groovy syntax def printByClosure(String param, Closure closure) { closure(param) } printByClosure("param", { println it })
4. Groovy syntax def printByClosure(String param, Closure closure) { closure(param) } printByClosure("param", { println it }) printByClosure("param") { println it }
5. Groovy syntax def printByClosure(String param, Closure closure) { closure(param) } printByClosure("param", { println it }) printByClosure("param") { println it } printByClosure "param", { println it }
6. Groovy syntax buildscript({ ext.kotlinVersion = "1.1.2-4" repositories({ jcenter() maven({ url('https:!"maven.fabric.io/public') } google() }) … }) buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … }
7. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … }
8. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } buildscript
9. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … }
10. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } ext.kotlinVersion = "1.1.2-4"
11. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } repositories
12. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() }
13. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } jcenter()
14. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } maven
15. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } { url 'https:!"maven.fabric.io/public' }
16. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } url ‘https:!"maven.fabric.io/public'
17. Groovy syntax buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } google()
18. Groovy syntax methodWithNamedParams name: "John", age: 25
19. Groovy syntax methodWithNamedParams name: "John", age: 25 def methodWithNamedParams(Map<String, Object> params) { println params["name"] println "Age: ${params["age"]}" }
20. Closures and delegates class WriterOne { def printText(str) { println "Printed in One: $str" } } class WriterTwo { def printText(str) { println "Printed in Two: $str" } }
21. Closures and delegates class WriterOne { def printText(str) { println "Printed in One: $str" } } class WriterTwo { def printText(str) { println "Printed in Two: $str" } } def printClosure = { printText "I come from a closure" }
22. Closures and delegates class WriterOne { def printText(str) { println "Printed in One: $str" } } class WriterTwo { def printText(str) { println "Printed in Two: $str" } } def printClosure = { printText "I come from a closure" } printClosure.delegate = new WriterOne() printClosure() !" will print "Printed in One: I come from a closure
23. Closures and delegates class WriterOne { def printText(str) { println "Printed in One: $str" } } class WriterTwo { def printText(str) { println "Printed in Two: $str" } } def printClosure = { printText "I come from a closure" } printClosure.delegate = new WriterOne() printClosure() !" will print "Printed in One: I come from a closure printClosure.delegate = new WriterTwo() printClosure() !" will print "Printed in Two: I come from a closure
24. Closure vs Action subprojects( Closure closure)
25. Closure vs Action subprojects( Closure closure) @DelegatesTo(Project.class)
26. Closure vs Action subprojects(Action<? super Project> action) subprojects( Closure closure) @DelegatesTo(Project.class)
27. (MyProject) . ├── settings.gradle ├── build.gradle ├── gradle │ └── wrapper ├── app │ ├── build.gradle │ └── src ├── data │ ├── build.gradle │ └── src └── domain ├── build.gradle └── src Gradle
28. (MyProject) . ├── settings.gradle ├── build.gradle ├── gradle │ └── wrapper ├── app │ ├── build.gradle │ └── src ├── data │ ├── build.gradle │ └── src └── domain ├── build.gradle └── src Project(name: MyProject, …) Project(name: app, …) Project(name: data, …) Project(name: domain, …) Gradle
29. (MyProject) . ├── settings.gradle ├── build.gradle ├── gradle │ └── wrapper ├── app │ ├── build.gradle │ └── src ├── data │ ├── build.gradle │ └── src └── domain ├── build.gradle └── src Project(name: MyProject, …) Project(name: app, …) Project(name: data, …) Project(name: domain, …) Gradle Project(name: MyProject, …)
30. build.gradle buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … }
31. build.gradle Project buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } buildscript buildscript(@DelegatesTo(ScriptHandler.class) Closure closure)
32. build.gradle ScriptHandler Project buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() repositories(@DelegatesTo(RepositoryHandler.class) Closure closure)
33. build.gradle ScriptHandler RepositoryHandler Project buildscript { ext.kotlinVersion = "1.1.2-4" repositories { jcenter() maven { url 'https:!"maven.fabric.io/public' } google() } … } jcenter() maven { url 'https:!"maven.fabric.io/public' } google() maven(@DelegatesTo(MavenArtifactRepository.class) Closure closure)
34. Project . . . afterEvaluate(…) hasProperty(…) buildscript(…)
35. Project Extensions (name, Type) . . . afterEvaluate(…) hasProperty(…) buildscript(…)
36. Project Extensions (name, Type) project.extensionName: Type project.extensionName(Closure): Void . . . afterEvaluate(…) hasProperty(…) buildscript(…)
37. Project afterEvaluate(…) hasProperty(…) buildscript(…)
38. Project afterEvaluate(…) hasProperty(…) buildscript(…) android: AppExtension buildTypes(Closure): Void productFlavors(Closure): Void . . .
39. Project afterEvaluate(…) hasProperty(…) buildscript(…) android: AppExtension buildTypes(Closure): Void productFlavors(Closure): Void . . . android(Closure)
40. Project afterEvaluate(…) hasProperty(…) buildscript(…) android: AppExtension buildTypes(Closure): Void productFlavors(Closure): Void . . . android(Closure) android: AppExtension
41. APK naming android { applicationVariants.all { variant !# variant.outputs.each { it.outputFile = new File( it.outputFile.parentFile, it.outputFile.name.replace(".apk", "-${variant.versionName}.apk")) } } }
42. *DomainObject collections Collection<T>
43. *DomainObject collections T T T T T T Collection<T>
44. *DomainObject collections T T T T T T DomainObjectCollection<T>
45. *DomainObject collections T T T T T T DomainObjectCollection<T> Live notifications and filtering
46. *DomainObject collections T T T T T T NamedDomainObjectCollection<T> Live notifications and filtering
47. *DomainObject collections T T T T T T NamedDomainObjectCollection<T> Live notifications and filtering name4: name2: name5: name3: name1: name6:
48. *DomainObject collections NamedDomainObjectSet<T> Live notifications and filtering T name6: T name5: T name4: T name3: T name2: T name1:
49. *DomainObject collections NamedDomainObjectSet<T> Live notifications and filtering T name6: T name5: T name4: T name3: T name2: T name1:
50. *DomainObject collections NamedDomainObjectContainer<T> Live notifications and filtering T name6: T name5: T name4: T name3: T name2: T name1:
51. *DomainObject collections NamedDomainObjectContainer<T> Live notifications and filtering T name6: T name5: T name4: T name3: T name2: T name1: create() maybeCreate() configure()
52. class Person { def name def role @Override String toString() { return "$name !$ $role" } def role(newRole) { this.role = newRole } }
53. NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) class Person { def name def role @Override String toString() { return "$name !$ $role" } def role(newRole) { this.role = newRole } }
54. NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) peopleRegistry.add(new Person(name: "Amy", role: “Tester")) peopleRegistry.add(new Person(name: "John", role: "Engineer")) class Person { def name def role @Override String toString() { return "$name !$ $role" } def role(newRole) { this.role = newRole } }
55. NamedDomainObjectCollection<Person>
56. NamedDomainObjectCollection<Person> Amy Amy: Person Amy(closure): Void
57. NamedDomainObjectCollection<Person> John John: Person John(closure): Void Amy Amy: Person Amy(closure): Void
58. NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class)
59. NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) peopleRegistry.add(new Person(name: "Amy", role: “Tester")) peopleRegistry.add(new Person(name: "John", role: "Engineer"))
60. NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) peopleRegistry.add(new Person(name: "Amy", role: “Tester")) peopleRegistry.add(new Person(name: "John", role: "Engineer")) def amy = peopleRegistry.Amy
61. NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) peopleRegistry.add(new Person(name: "Amy", role: “Tester")) peopleRegistry.add(new Person(name: "John", role: "Engineer")) def amy = peopleRegistry.Amy peopleRegistry.Amy { role = "Engineer" }
62. DomainObjectCollection<Person>
63. DomainObjectCollection<Person> whenObjectAdded(Closure) whenObjectRemoved(Closure)
64. DomainObjectCollection<Person> whenObjectAdded(Closure) whenObjectRemoved(Closure) withType(Class<T> class, Closure action) matching(Closure spec) all(Closure action)
65. println "Creating the registry” NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class)
66. println "Creating the registry” NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) println "Registering the listener” peopleRegistry.each { person !# println person }
67. println "Creating the registry” NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) println "Adding people” peopleRegistry.add(new Person(name: "Amy", role: “Tester")) peopleRegistry.add(new Person(name: "John", role: "Engineer")) println "Registering the listener” peopleRegistry.each { person !# println person }
68. println "Creating the registry” NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) println "Adding people” peopleRegistry.add(new Person(name: "Amy", role: “Tester")) peopleRegistry.add(new Person(name: "John", role: "Engineer")) println "Registering the listener” peopleRegistry.each { person !# println person } ▶ ./gradlew Creating the registry Registering the listener Adding people
69. println "Creating the registry” NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) println "Adding people” peopleRegistry.add(new Person(name: "Amy", role: “Tester")) peopleRegistry.add(new Person(name: "John", role: "Engineer")) println "Registering the listener” peopleRegistry.all { person !# println person } ▶ ./gradlew Creating the registry Registering the listener Adding people
70. println "Creating the registry” NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) println "Adding people” peopleRegistry.add(new Person(name: "Amy", role: “Tester")) peopleRegistry.add(new Person(name: "John", role: "Engineer")) println "Registering the listener” peopleRegistry.all { person !# println person } ▶ ./gradlew Creating the registry Registering the listener Adding people Amy !$ Tester John !$ Engineer
71. println "Creating the registry" NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) peopleRegistry.add(new Person(name: "Amy", role: “Tester")) println "Registering the listener" peopleRegistry.whenObjectAdded { person !# println person } peopleRegistry.add(new Person(name: "John", role: "Engineer"))
72. println "Creating the registry" NamedDomainObjectCollection<Person> peopleRegistry = project.container(Person.class) peopleRegistry.add(new Person(name: "Amy", role: “Tester")) println "Registering the listener" peopleRegistry.whenObjectAdded { person !# println person } peopleRegistry.add(new Person(name: "John", role: "Engineer")) ▶ ./gradlew Creating the registry Registering the listener John !$ Engineer
73. NamedDomainObjectContainer<T>
74. NamedDomainObjectContainer<T> maybeCreate(String name) create(String name) create(String name, Closure configuration) configure(Closure configuration)
75. def peopleRegistry = project.container(Person.class, { new Person(name: it) })
76. def peopleRegistry = project.container(Person.class, { new Person(name: it) }) peopleRegistry.configure { Amy { role "Tester" } John { role "Engineer" } }
77. def peopleRegistry = project.container(Person.class, { new Person(name: it) }) peopleRegistry.configure { Amy { role "Tester" } John { role "Engineer" } } println peopleRegistry.Amy println peopleRegistry.John
78. ConfigurationContainer TaskContainer RepositoryHandler SoftwareComponentContainer Project
79. ProductFlavors BuildTypes SigningConfigs ApplicationVariants AppExtension SourceSets
80. android { buildTypes { release { … } } }
81. android { buildTypes { release { … } } } public void buildTypes(Action<NamedDomainObjectContainer<BuildType!& action) { this.checkWritability(); action.execute(this.buildTypes); } AppExtension:
82. APK naming android { applicationVariants.all { variant !# variant.outputs.each { it.outputFile = new File( it.outputFile.parentFile, it.outputFile.name.replace(".apk", "-${variant.versionName}.apk")) } } }
83. APK naming public DomainObjectSet<ApplicationVariant> AppExtension#getApplicationVariants() android { applicationVariants.all { variant !# variant.outputs.each { it.outputFile = new File( it.outputFile.parentFile, it.outputFile.name.replace(".apk", "-${variant.versionName}.apk")) } } } applicationVariants.all
84. APK naming android { applicationVariants.all { variant !# variant.outputs.each { it.outputFile = new File( it.outputFile.parentFile, it.outputFile.name.replace(".apk", "-${variant.versionName}.apk")) } } } variant.outputs.each { public List<BaseVariantOutput> ApplicationVariant#getOutputs()
85. APK naming android { applicationVariants.all { variant !# variant.outputs.each { it.outputFile = new File( it.outputFile.parentFile, it.outputFile.name.replace(".apk", "-${variant.versionName}.apk")) } } } it.outputFile = new File( it.outputFile.parentFile, it.outputFile.name.replace(".apk", "-${variant.versionName}.apk")) public File BaseVariantOutput#getOutputFile() public File BaseVariantOutput#setOutputFile(File file)
86. Common flavors and build types
87. Common flavors and build types def androidProjects = [project("app"), project("data"), project("mvp")]
88. Common flavors and build types def androidProjects = [project("app"), project("data"), project("mvp")] def androidBuildTypes = ["alpha", "debug", "release"] def androidFlavors = ["staging", “production", “mock”]
89. Common flavors and build types def androidProjects = [project("app"), project("data"), project("mvp")] androidProjects.each { project !# androidBuildTypes.each { project.android.buildTypes.maybeCreate it } androidFlavors.each { project.android.productFlavors.maybeCreate it } } def androidBuildTypes = ["alpha", "debug", "release"] def androidFlavors = ["staging", “production", “mock”]
90. BuildConfig fields android { buildTypes { release { buildConfigField "boolean", "LOG_HTTP_REQUESTS", "false" buildConfigField "boolean", "REPORT_CRASHES", "true" buildConfigField "boolean", "DEBUG_IMAGES", "false" } debug { buildConfigField "boolean", "LOG_HTTP_REQUESTS", "true" buildConfigField "boolean", "REPORT_CRASHES", "false" buildConfigField "boolean", "DEBUG_IMAGES", "true" } !!' } }
91. android { buildTypes { def BOOLEAN = "boolean" def TRUE = "true" def FALSE = "false" def LOG_HTTP_REQUESTS = "LOG_HTTP_REQUESTS" def REPORT_CRASHES = "REPORT_CRASHES" def DEBUG_IMAGES = "DEBUG_IMAGES" release { buildConfigField BOOLEAN, LOG_HTTP_REQUESTS, FALSE buildConfigField BOOLEAN, REPORT_CRASHES, TRUE buildConfigField BOOLEAN, DEBUG_IMAGES, FALSE } debug { buildConfigField BOOLEAN, LOG_HTTP_REQUESTS, TRUE buildConfigField BOOLEAN, REPORT_CRASHES, FALSE buildConfigField BOOLEAN, DEBUG_IMAGES, TRUE } } }
92. buildTypes { release { buildConfigField "boolean", "LOG_HTTP_REQUESTS", "false" buildConfigField "boolean", "REPORT_CRASHES", "true" buildConfigField "boolean", "DEBUG_IMAGES", "true" } }
93. void buildTypes(Action<NamedDomainObjectContainer<BuildType!& action) buildTypes { release { buildConfigField "boolean", "LOG_HTTP_REQUESTS", "false" buildConfigField "boolean", "REPORT_CRASHES", "true" buildConfigField "boolean", "DEBUG_IMAGES", "true" } } buildTypes { }
94. buildTypes { release { buildConfigField "boolean", "LOG_HTTP_REQUESTS", "false" buildConfigField "boolean", "REPORT_CRASHES", "true" buildConfigField "boolean", "DEBUG_IMAGES", "true" } } BuildType(name: release) { buildConfigField "boolean", "LOG_HTTP_REQUESTS", "false" buildConfigField "boolean", "REPORT_CRASHES", "true" buildConfigField "boolean", "DEBUG_IMAGES", "true" }
95. def configureBuildType(buildType, isDebug) { buildType.buildConfigField "boolean", "LOG_HTTP_REQUESTS", "${isDebug}" buildType.buildConfigField "boolean", "REPORT_CRASHES", "${!isDebug}" buildType.buildConfigField "boolean", "DEBUG_IMAGES", "${isDebug}" }
96. def configureBuildType(buildType, isDebug) { buildType.buildConfigField "boolean", "LOG_HTTP_REQUESTS", "${isDebug}" buildType.buildConfigField "boolean", "REPORT_CRASHES", "${!isDebug}" buildType.buildConfigField "boolean", "DEBUG_IMAGES", "${isDebug}" } configureBuildType(android.buildTypes.release, false)
97. def configureBuildType(buildType, isDebug) { buildType.buildConfigField "boolean", "LOG_HTTP_REQUESTS", "${isDebug}" buildType.buildConfigField "boolean", "REPORT_CRASHES", "${!isDebug}" buildType.buildConfigField "boolean", "DEBUG_IMAGES", "${isDebug}" } configureBuildType(android.buildTypes.release, false) android { buildTypes { release { configureBuildType(???, false) } debug { configureBuildType(???, true) } } }
98. def configureBuildType(buildType, isDebug) { buildType.buildConfigField "boolean", "LOG_HTTP_REQUESTS", "${isDebug}" buildType.buildConfigField "boolean", "REPORT_CRASHES", "${!isDebug}" buildType.buildConfigField "boolean", "DEBUG_IMAGES", "${isDebug}" } android { buildTypes { release { configureBuildType(delegate, false) } debug { configureBuildType(delegate, true) } } } configureBuildType(android.buildTypes.release, false)
99. android { buildTypes { release { configureBuildType(delegate, false) } } }
100. android { buildTypes { release { configureBuildType(delegate, false) } } } android { buildTypes { release { configureBuildType(delegate, false) } debug { configureBuildType(delegate, true) } alpha { configureBuildType(delegate, false) } mock { configureBuildType(delegate, true) }
101. Dependency resolution androidTestCompile (‘com.android.support.test.espresso:espresso-contrib:2.2') { exclude group: 'com.android.support', module: 'appcompat-v7' exclude group: 'com.android.support', module: 'support-v4' exclude module: 'recyclerview-v7' } compile('com.crashlytics.sdk.android:crashlytics:2.6.7@aar') { transitive = true }
102. dependencies { compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0' }
103. ▶ ./gradlew app:dependencies !)configuration compile dependencies { compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0' } compile - Dependencies for source set 'main' +!!* com.jakewharton.rxbinding2:rxbinding:2.0.0 | +!!* io.reactivex.rxjava2:rxjava:2.0.2 (*) | +!!* io.reactivex.rxjava2:rxandroid:2.0.0 | | \!!* io.reactivex.rxjava2:rxjava:2.0.0 !# 2.0.2 (*) | \!!* com.android.support:support-annotations:25.1.1 !# 25.3.1
104. App module
105. App module RxBindings 2.0.0 compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0' +!!* com.jakewharton.rxbinding2:rxbinding:2.0.0
106. App module RxBindings 2.0.0 RxJava 2.0.2 compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0' +!!* com.jakewharton.rxbinding2:rxbinding:2.0.0 | +!!* io.reactivex.rxjava2:rxjava:2.0.2 (*)
107. App module RxBindings 2.0.0 RxJava 2.0.2 RxAndroid 2.0.0 compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0' +!!* com.jakewharton.rxbinding2:rxbinding:2.0.0 | +!!* io.reactivex.rxjava2:rxjava:2.0.2 (*) | +!!* io.reactivex.rxjava2:rxandroid:2.0.0
108. App module RxBindings 2.0.0 RxJava 2.0.2 RxAndroid 2.0.0 RxJava 2.0.0 compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0' +!!* com.jakewharton.rxbinding2:rxbinding:2.0.0 | +!!* io.reactivex.rxjava2:rxjava:2.0.2 (*) | +!!* io.reactivex.rxjava2:rxandroid:2.0.0 | | \!!* io.reactivex.rxjava2:rxjava:2.0.0 !# 2.0.2 (*)
109. App module RxBindings 2.0.0 RxJava 2.0.2 RxAndroid 2.0.0 RxJava 2.0.0 +!!* com.jakewharton.rxbinding2:rxbinding:2.0.0 | +!!* io.reactivex.rxjava2:rxjava:2.0.2 (*) | +!!* io.reactivex.rxjava2:rxandroid:2.0.0 | | \!!* io.reactivex.rxjava2:rxjava:2.0.0 !# 2.0.2 (*) 2.0.0 !# 2.0.2 (*)
110. App module RxBindings 2.0.0 RxJava 2.0.2 RxAndroid 2.0.0 RxJava 2.0.0 +!!* com.jakewharton.rxbinding2:rxbinding:2.0.0 | +!!* io.reactivex.rxjava2:rxjava:2.0.2 (*) | +!!* io.reactivex.rxjava2:rxandroid:2.0.0 | | \!!* io.reactivex.rxjava2:rxjava:2.0.0 !# 2.0.2 (*) 2.0.0 !# 2.0.2 (*)
111. App module RxBindings 2.0.0 RxJava 2.0.2 RxAndroid 2.0.0 RxJava 2.0.0 +!!* com.jakewharton.rxbinding2:rxbinding:2.0.0 | +!!* io.reactivex.rxjava2:rxjava:2.0.2 (*) | +!!* io.reactivex.rxjava2:rxandroid:2.0.0 | | \!!* io.reactivex.rxjava2:rxjava:2.0.0 !# 2.0.2 (*) 2.0.0 !# 2.0.2 (*) RxJava 2.0.2 RxJava 2.0.0
112. dependencies { compile(‘com.jakewharton.rxbinding2:rxbinding:2.0.0’) { transitive = false } }
113. ▶ ./gradlew app:dependencies !)configuration compile dependencies { compile(‘com.jakewharton.rxbinding2:rxbinding:2.0.0’) { transitive = false } } compile - Dependencies for source set 'main' +!!* com.jakewharton.rxbinding2:rxbinding:2.0.0
114. dependencies { compile(‘com.jakewharton.rxbinding2:rxbinding:2.0.0’) { transitive = false } }
115. dependencies { compile(‘com.jakewharton.rxbinding2:rxbinding:2.0.0’) { transitive = false } } configurationName "group:name:version:classifier@extension"
116. dependencies { compile(‘com.jakewharton.rxbinding2:rxbinding:2.0.0’) { transitive = false } } Configuration configurationName "group:name:version:classifier@extension"
117. dependencies { compile(‘com.jakewharton.rxbinding2:rxbinding:2.0.0’) { transitive = false } } Configuration Configuration.configure(Closure) configurationName "group:name:version:classifier@extension" configurationName("group:name:version:classifier@extension") { }
118. Artifact only notation compile ’com.jakewharton.rxbinding2:rxbinding:2.0.0 ’
119. Artifact only notation compile ‘com.jakewharton.rxbinding2:rxbinding:2.0.0@aar’ compile ’com.jakewharton.rxbinding2:rxbinding:2.0.0 ’
120. Artifact only notation compile ‘com.jakewharton.rxbinding2:rxbinding:2.0.0@aar’ compile ’com.jakewharton.rxbinding2:rxbinding:2.0.0 ’ transitive = false
121. compile ‘com.crashlytics.sdk.android:crashlytics:2.6.7’ compile(‘com.crashlytics.sdk.android:crashlytics:2.6.7@aar’) { transitive = true }
122. compile ‘com.crashlytics.sdk.android:crashlytics:2.6.7’
123. androidTestCompile(‘com.android.support.test.espresso:espresso-contrib:2.2') { exclude group: 'com.android.support', module: 'appcompat-v7' exclude group: 'com.android.support', module: 'support-v4' exclude module: 'recyclerview-v7' }
124. dependencies { androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.2' }
125. ▶ gw app:dependencies !)configuration androidTestCompile androidTestCompile - Classpath for compiling the androidTest sources. \!!* com.android.support.test.espresso:espresso-contrib:2.2 +!!* com.google.android.apps.common.testing.accessibility.framework:accessibility-test-framework:2.0 | \!!* org.hamcrest:hamcrest-core:1.3 +!!* com.android.support:support-v4:22.2.0 | \!!* com.android.support:support-annotations:22.2.0 +!!* com.android.support:recyclerview-v7:22.2.0 | +!!* com.android.support:support-annotations:22.2.0 | \!!* com.android.support:support-v4:22.2.0 (*) \!!* com.android.support.test.espresso:espresso-core:2.2 +!!* com.android.support.test.espresso:espresso-idling-resource:2.2 +!!* com.squareup:javawriter:2.1.1 +!!* javax.inject:javax.inject:1 +!!* org.hamcrest:hamcrest-library:1.3 | \!!* org.hamcrest:hamcrest-core:1.3 +!!* com.android.support.test:rules:0.3 | \!!* com.android.support.test:runner:0.3 | +!!* com.android.support.test:exposed-instrumentation-api-publish:0.3 | +!!* junit:junit:4.12 | | \!!* org.hamcrest:hamcrest-core:1.3 | \!!* com.android.support:support-annotations:22.2.0 +!!* org.hamcrest:hamcrest-integration:1.3 | \!!* org.hamcrest:hamcrest-library:1.3 (*) +!!* com.google.code.findbugs:jsr305:2.0.1 +!!* javax.annotation:javax.annotation-api:1.2 \!!* com.android.support.test:runner:0.3 (*) androidTestCompile - Classpath for compiling the androidTest sources. \!!* com.android.support.test.espresso:espresso-contrib:2.2 +!!* com.android.support:recyclerview-v7:22.2.0 | +!!* com.android.support:support-annotations:22.2.0 | \!!* com.android.support:support-v4:22.2.0 (*) dependencies { androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.2' }
126. ▶ gw app:dependencies !)configuration androidTestCompile androidTestCompile - Classpath for compiling the androidTest sources. \!!* com.android.support.test.espresso:espresso-contrib:2.2 +!!* com.google.android.apps.common.testing.accessibility.framework:accessibility-test-framework:2.0 | \!!* org.hamcrest:hamcrest-core:1.3 +!!* com.android.support:support-v4:22.2.0 | \!!* com.android.support:support-annotations:22.2.0 +!!* com.android.support:recyclerview-v7:22.2.0 | +!!* com.android.support:support-annotations:22.2.0 | \!!* com.android.support:support-v4:22.2.0 (*) \!!* com.android.support.test.espresso:espresso-core:2.2 +!!* com.android.support.test.espresso:espresso-idling-resource:2.2 +!!* com.squareup:javawriter:2.1.1 +!!* javax.inject:javax.inject:1 +!!* org.hamcrest:hamcrest-library:1.3 | \!!* org.hamcrest:hamcrest-core:1.3 +!!* com.android.support.test:rules:0.3 | \!!* com.android.support.test:runner:0.3 | +!!* com.android.support.test:exposed-instrumentation-api-publish:0.3 | +!!* junit:junit:4.12 | | \!!* org.hamcrest:hamcrest-core:1.3 | \!!* com.android.support:support-annotations:22.2.0 +!!* org.hamcrest:hamcrest-integration:1.3 | \!!* org.hamcrest:hamcrest-library:1.3 (*) +!!* com.google.code.findbugs:jsr305:2.0.1 +!!* javax.annotation:javax.annotation-api:1.2 \!!* com.android.support.test:runner:0.3 (*) androidTestCompile - Classpath for compiling the androidTest sources. \!!* com.android.support.test.espresso:espresso-contrib:2.2 +!!* com.android.support:recyclerview-v7:22.2.0 | +!!* com.android.support:support-annotations:22.2.0 | \!!* com.android.support:support-v4:22.2.0 (*) dependencies { androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.2' }
127. ▶ gw app:dependencies !)configuration androidTestCompile androidTestCompile - Classpath for compiling the androidTest sources. \!!* com.android.support.test.espresso:espresso-contrib:2.2 +!!* com.google.android.apps.common.testing.accessibility.framework:accessibility-test-framework:2.0 | \!!* org.hamcrest:hamcrest-core:1.3 +!!* com.android.support:support-v4:22.2.0 | \!!* com.android.support:support-annotations:22.2.0 +!!* com.android.support:recyclerview-v7:22.2.0 | +!!* com.android.support:support-annotations:22.2.0 | \!!* com.android.support:support-v4:22.2.0 (*) \!!* com.android.support.test.espresso:espresso-core:2.2 +!!* com.android.support.test.espresso:espresso-idling-resource:2.2 +!!* com.squareup:javawriter:2.1.1 +!!* javax.inject:javax.inject:1 +!!* org.hamcrest:hamcrest-library:1.3 | \!!* org.hamcrest:hamcrest-core:1.3 +!!* com.android.support.test:rules:0.3 | \!!* com.android.support.test:runner:0.3 | +!!* com.android.support.test:exposed-instrumentation-api-publish:0.3 | +!!* junit:junit:4.12 | | \!!* org.hamcrest:hamcrest-core:1.3 | \!!* com.android.support:support-annotations:22.2.0 +!!* org.hamcrest:hamcrest-integration:1.3 | \!!* org.hamcrest:hamcrest-library:1.3 (*) +!!* com.google.code.findbugs:jsr305:2.0.1 +!!* javax.annotation:javax.annotation-api:1.2 \!!* com.android.support.test:runner:0.3 (*) androidTestCompile - Classpath for compiling the androidTest sources. \!!* com.android.support.test.espresso:espresso-contrib:2.2 +!!* com.android.support:recyclerview-v7:22.2.0 | +!!* com.android.support:support-annotations:22.2.0 | \!!* com.android.support:support-v4:22.2.0 (*) dependencies { androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.2' compile ‘com.android.support:recyclerview-v7:25.3.1' }
128. dependencies { androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.2' compile ‘com.android.support:recyclerview-v7:25.3.1' }
129. dependencies { androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.2' compile ‘com.android.support:recyclerview-v7:25.3.1' } Conflict with dependency 'com.android.support:recyclerview-v7' in project ‘:app'. Resolved versions for app (25.3.1) and test app (22.2.0) differ. See http:!"g.co/androidstudio/app-test-app-conflict for details.
130. Exclude conflicting dependencies
131. Exclude conflicting dependencies androidTestCompile ('com.android.support.test.espresso:espresso-contrib:2.2'){ exclude group: 'com.android.support' } androidTestCompile ('com.android.support.test.espresso:espresso-contrib:2.2'){ exclude group: 'com.android.support', module: 'appcompat-v7' exclude group: 'com.android.support', module: 'support-v4' exclude module: 'recyclerview-v7' }
132. Exclude conflicting dependencies androidTestCompile ('com.android.support.test.espresso:espresso-contrib:2.2'){ exclude group: 'com.android.support' } androidTestCompile ('com.android.support.test.espresso:espresso-contrib:2.2'){ exclude group: 'com.android.support', module: 'appcompat-v7' exclude group: 'com.android.support', module: 'support-v4' exclude module: 'recyclerview-v7' } androidTestCompile - Classpath for compiling the androidTest sources. \!!* com.android.support.test.espresso:espresso-contrib:2.2 +!!* com.google.android.apps.common.testing.accessibility.framework:accessibility-test-framework:2.0 | \!!* org.hamcrest:hamcrest-core:1.3 \!!* com.android.support.test.espresso:espresso-core:2.2 +!!* com.android.support.test.espresso:espresso-idling-resource:2.2 +!!* com.squareup:javawriter:2.1.1 +!!* javax.inject:javax.inject:1 +!!* org.hamcrest:hamcrest-library:1.3 | \!!* org.hamcrest:hamcrest-core:1.3 +!!* com.android.support.test:rules:0.3 | \!!* com.android.support.test:runner:0.3 | +!!* com.android.support.test:exposed-instrumentation-api-publish:0.3 | +!!* junit:junit:4.12 | | \!!* org.hamcrest:hamcrest-core:1.3 | \!!* com.android.support:support-annotations:22.2.0 +!!* org.hamcrest:hamcrest-integration:1.3 | \!!* org.hamcrest:hamcrest-library:1.3 (*) +!!* com.google.code.findbugs:jsr305:2.0.1 +!!* javax.annotation:javax.annotation-api:1.2 \!!* com.android.support.test:runner:0.3 (*)
133. Exclude conflicting dependencies androidTestCompile ('com.android.support.test.espresso:espresso-contrib:2.2'){ exclude group: 'com.android.support' } androidTestCompile - Classpath for compiling the androidTest sources. \!!* com.android.support.test.espresso:espresso-contrib:2.2 +!!* com.google.android.apps.common.testing.accessibility.framework:accessibility-test-framework:2.0 | \!!* org.hamcrest:hamcrest-core:1.3 \!!* com.android.support.test.espresso:espresso-core:2.2 +!!* com.android.support.test.espresso:espresso-idling-resource:2.2 +!!* com.squareup:javawriter:2.1.1 +!!* javax.inject:javax.inject:1 +!!* org.hamcrest:hamcrest-library:1.3 | \!!* org.hamcrest:hamcrest-core:1.3 +!!* com.android.support.test:rules:0.3 | \!!* com.android.support.test:runner:0.3 | +!!* com.android.support.test:exposed-instrumentation-api-publish:0.3 | +!!* junit:junit:4.12 | | \!!* org.hamcrest:hamcrest-core:1.3 | \!!* com.android.support:support-annotations:22.2.0 +!!* org.hamcrest:hamcrest-integration:1.3 | \!!* org.hamcrest:hamcrest-library:1.3 (*) +!!* com.google.code.findbugs:jsr305:2.0.1 +!!* javax.annotation:javax.annotation-api:1.2 \!!* com.android.support.test:runner:0.3 (*)
134. Explicitly request specific version
135. Explicitly request specific version androidTestCompile "com.android.support.test.espresso:espresso-contrib:2.2"
136. Explicitly request specific version androidTestCompile "com.android.support.test.espresso:espresso-contrib:2.2" androidTestCompile "com.android.support:support-v4:25.3.1" androidTestCompile "com.android.support:recyclerview-v7:25.3.1" androidTestCompile "com.android.support.test.espresso:espresso-contrib:2.2"
137. Explicitly request specific version androidTestCompile "com.android.support.test.espresso:espresso-contrib:2.2" androidTestCompile "com.android.support:support-v4:25.3.1" androidTestCompile "com.android.support:recyclerview-v7:25.3.1" compile "com.android.support:support-v4:25.3.1" compile “com.android.support:recyclerview-v7:25.3.1" androidTestCompile "com.android.support.test.espresso:espresso-contrib:2.2"
138. Disable transitive resolution
139. androidTestCompile('com.android.support.test.espresso:espresso-contrib:2.2') { transitive = false } Disable transitive resolution
140. androidTestCompile ‘com.android.support.test.espresso:espresso-contrib:2.2@aar' androidTestCompile('com.android.support.test.espresso:espresso-contrib:2.2') { transitive = false } Disable transitive resolution
141. Force resolution
142. configurations.all { resolutionStrategy { force 'com.android.support:support-annotations:25.3.1' } } Force resolution
143. Resources
144. github.com/gradle/gradle tools.android.com/build/gradleplugin Resources groovy-lang.org/documentation.html
145. What now? #android-snippets Write a plugin
146. @_wasyl medium.com/@wasyl Thank you!