├── app ├── .gitignore ├── src │ ├── main │ │ ├── res │ │ │ ├── values │ │ │ │ ├── strings.xml │ │ │ │ ├── colors.xml │ │ │ │ └── styles.xml │ │ │ ├── mipmap-hdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-mdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xhdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xxhdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xxxhdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-anydpi-v26 │ │ │ │ ├── ic_launcher.xml │ │ │ │ └── ic_launcher_round.xml │ │ │ ├── layout │ │ │ │ └── activity_sample.xml │ │ │ ├── drawable-v24 │ │ │ │ └── ic_launcher_foreground.xml │ │ │ └── drawable │ │ │ │ └── ic_launcher_background.xml │ │ ├── java │ │ │ └── com │ │ │ │ └── radutopor │ │ │ │ └── viewmodelfactory │ │ │ │ ├── DI.kt │ │ │ │ ├── SampleViewModel.kt │ │ │ │ └── SampleActivity.kt │ │ └── AndroidManifest.xml │ ├── test │ │ └── java │ │ │ └── com │ │ │ └── radutopor │ │ │ └── viewmodelfactory │ │ │ └── ExampleUnitTest.kt │ └── androidTest │ │ └── java │ │ └── com │ │ └── radutopor │ │ └── viewmodelfactory │ │ └── ExampleInstrumentedTest.kt ├── proguard-rules.pro └── build.gradle ├── annotations ├── .gitignore ├── src │ └── main │ │ └── java │ │ └── com │ │ └── radutopor │ │ └── viewmodelfactory │ │ └── annotations │ │ ├── Provided.java │ │ └── ViewModelFactory.java └── build.gradle ├── processor ├── .gitignore ├── src │ └── main │ │ └── java │ │ └── com │ │ └── radutopor │ │ └── viewmodelfactory │ │ └── processor │ │ ├── VmConstrParam.java │ │ └── ViewModelFactoryProcessor.java └── build.gradle ├── settings.gradle ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── .idea ├── codeStyles │ ├── codeStyleConfig.xml │ └── Project.xml ├── vcs.xml ├── runConfigurations.xml ├── modules.xml └── misc.xml ├── gradle.properties ├── .gitignore ├── gradlew.bat ├── README.md └── gradlew /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /annotations/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /processor/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app', ':annotations', ':processor' 2 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | ViewModelFactory 3 | 4 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/radutopor/ViewModelFactory/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /.idea/codeStyles/codeStyleConfig.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 5 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #008577 4 | #00574B 5 | #D81B60 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /annotations/src/main/java/com/radutopor/viewmodelfactory/annotations/Provided.java: -------------------------------------------------------------------------------- 1 | package com.radutopor.viewmodelfactory.annotations; 2 | 3 | import java.lang.annotation.Target; 4 | 5 | import static java.lang.annotation.ElementType.PARAMETER; 6 | 7 | /** 8 | * An annotation to be applied to parameters that should be provided by dependency injection in a generated factory. 9 | */ 10 | @Target(PARAMETER) 11 | public @interface Provided { 12 | } 13 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /app/src/test/java/com/radutopor/viewmodelfactory/ExampleUnitTest.kt: -------------------------------------------------------------------------------- 1 | package com.radutopor.viewmodelfactory 2 | 3 | import org.junit.Test 4 | 5 | import org.junit.Assert.* 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * See [testing documentation](http://d.android.com/tools/testing). 11 | */ 12 | class ExampleUnitTest { 13 | @Test 14 | fun addition_isCorrect() { 15 | assertEquals(4, 2 + 2) 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /annotations/src/main/java/com/radutopor/viewmodelfactory/annotations/ViewModelFactory.java: -------------------------------------------------------------------------------- 1 | package com.radutopor.viewmodelfactory.annotations; 2 | 3 | import java.lang.annotation.Target; 4 | 5 | import static java.lang.annotation.ElementType.CONSTRUCTOR; 6 | import static java.lang.annotation.ElementType.TYPE; 7 | 8 | /** 9 | * An annotation to be applied to ViewModels for which a ViewModelProvider.Factory should be automatically generated. 10 | */ 11 | @Target({TYPE, CONSTRUCTOR}) 12 | public @interface ViewModelFactory { 13 | } 14 | -------------------------------------------------------------------------------- /app/src/main/java/com/radutopor/viewmodelfactory/DI.kt: -------------------------------------------------------------------------------- 1 | package com.radutopor.viewmodelfactory 2 | 3 | import dagger.Component 4 | import dagger.Module 5 | import dagger.Provides 6 | import javax.inject.Singleton 7 | 8 | @Module 9 | class AppModule { 10 | @Singleton 11 | @Provides 12 | fun providesAppName() = "SampleApp" 13 | } 14 | 15 | @Singleton 16 | @Component(modules = [AppModule::class]) 17 | interface AppComponent { 18 | fun inject(sampleActivity: SampleActivity) 19 | } 20 | 21 | val appComponent = DaggerAppComponent.create() -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_sample.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 13 | 14 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /app/src/main/java/com/radutopor/viewmodelfactory/SampleViewModel.kt: -------------------------------------------------------------------------------- 1 | package com.radutopor.viewmodelfactory 2 | 3 | import androidx.lifecycle.LiveData 4 | import androidx.lifecycle.MutableLiveData 5 | import androidx.lifecycle.ViewModel 6 | import com.radutopor.viewmodelfactory.annotations.Provided 7 | import com.radutopor.viewmodelfactory.annotations.ViewModelFactory 8 | 9 | @ViewModelFactory 10 | class SampleViewModel(@Provided private val appName: String, private val userName: String) : ViewModel() { 11 | private val greeting = MutableLiveData() 12 | 13 | init { 14 | greeting.value = "Hi $userName, this is $appName" 15 | } 16 | 17 | fun getGreeting() = greeting as LiveData 18 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/radutopor/viewmodelfactory/ExampleInstrumentedTest.kt: -------------------------------------------------------------------------------- 1 | package com.radutopor.viewmodelfactory 2 | 3 | import android.support.test.InstrumentationRegistry 4 | import android.support.test.runner.AndroidJUnit4 5 | 6 | import org.junit.Test 7 | import org.junit.runner.RunWith 8 | 9 | import org.junit.Assert.* 10 | 11 | /** 12 | * Instrumented test, which will execute on an Android device. 13 | * 14 | * See [testing documentation](http://d.android.com/tools/testing). 15 | */ 16 | @RunWith(AndroidJUnit4::class) 17 | class ExampleInstrumentedTest { 18 | @Test 19 | fun useAppContext() { 20 | // Context of the app under test. 21 | val appContext = InstrumentationRegistry.getTargetContext() 22 | assertEquals("com.radutopor.viewmodelfactory", appContext.packageName) 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /processor/src/main/java/com/radutopor/viewmodelfactory/processor/VmConstrParam.java: -------------------------------------------------------------------------------- 1 | package com.radutopor.viewmodelfactory.processor; 2 | 3 | public class VmConstrParam { 4 | private final String type; 5 | private final String name; 6 | private final String typeAndName; 7 | private final boolean isProvided; 8 | 9 | public VmConstrParam(String type, String name, boolean isProvided) { 10 | this.type = type; 11 | this.name = name; 12 | typeAndName = type + " " + name; 13 | this.isProvided = isProvided; 14 | } 15 | 16 | public String getType() { 17 | return type; 18 | } 19 | 20 | public String getName() { 21 | return name; 22 | } 23 | 24 | public String getTypeAndName() { 25 | return typeAndName; 26 | } 27 | 28 | public boolean isProvided() { 29 | return isProvided; 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | # IDE (e.g. Android Studio) users: 3 | # Gradle settings configured through the IDE *will override* 4 | # any settings specified in this file. 5 | # For more details on how to configure your build environment visit 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html 7 | # Specifies the JVM arguments used for the daemon process. 8 | # The setting is particularly useful for tweaking memory settings. 9 | org.gradle.jvmargs=-Xmx1536m 10 | # When configured, Gradle will run in incubating parallel mode. 11 | # This option should only be used with decoupled projects. More details, visit 12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 13 | # org.gradle.parallel=true 14 | # Kotlin code style for this project: "official" or "obsolete": 15 | kotlin.code.style=official 16 | android.enableJetifier=true 17 | android.useAndroidX=true 18 | -------------------------------------------------------------------------------- /app/src/main/java/com/radutopor/viewmodelfactory/SampleActivity.kt: -------------------------------------------------------------------------------- 1 | package com.radutopor.viewmodelfactory 2 | 3 | import android.os.Bundle 4 | import androidx.appcompat.app.AppCompatActivity 5 | import androidx.lifecycle.Observer 6 | import androidx.lifecycle.ViewModelProviders 7 | import kotlinx.android.synthetic.main.activity_sample.* 8 | import javax.inject.Inject 9 | 10 | class SampleActivity : AppCompatActivity() { 11 | @Inject 12 | lateinit var sampleViewModelFactory2: SampleViewModelFactory2 13 | 14 | override fun onCreate(savedInstanceState: Bundle?) { 15 | super.onCreate(savedInstanceState) 16 | setContentView(R.layout.activity_sample) 17 | appComponent.inject(this) 18 | 19 | val userName = intent.getStringExtra("USER_NAME") ?: "Billy" 20 | val viewModel = ViewModelProviders.of(this, sampleViewModelFactory2.create(userName)) 21 | .get(SampleViewModel::class.java) 22 | 23 | viewModel.getGreeting().observe(this, Observer { greeting -> 24 | greetingTextView.text = greeting 25 | }) 26 | } 27 | } -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the ART/Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | out/ 15 | 16 | # Gradle files 17 | .gradle/ 18 | build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log 28 | 29 | # Android Studio Navigation editor temp files 30 | .navigation/ 31 | 32 | # Android Studio captures folder 33 | captures/ 34 | 35 | # IntelliJ 36 | *.iml 37 | .idea/workspace.xml 38 | .idea/tasks.xml 39 | .idea/gradle.xml 40 | .idea/assetWizardSettings.xml 41 | .idea/dictionaries 42 | .idea/libraries 43 | .idea/caches 44 | 45 | # Keystore files 46 | # Uncomment the following line if you do not want to check your keystore files in. 47 | #*.jks 48 | 49 | # External native build folder generated in Android Studio 2.2 and later 50 | .externalNativeBuild 51 | 52 | # Google Services (e.g. APIs or Firebase) 53 | google-services.json 54 | 55 | # Freeline 56 | freeline.py 57 | freeline/ 58 | freeline_project_description.json 59 | 60 | # fastlane 61 | fastlane/report.xml 62 | fastlane/Preview.html 63 | fastlane/screenshots 64 | fastlane/test_output 65 | fastlane/readme.md 66 | -------------------------------------------------------------------------------- /annotations/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'java-library' 2 | apply plugin: 'com.github.dcendents.android-maven' 3 | apply plugin: 'com.jfrog.bintray' 4 | 5 | dependencies { 6 | implementation fileTree(dir: 'libs', include: ['*.jar']) 7 | } 8 | 9 | sourceCompatibility = "7" 10 | targetCompatibility = "7" 11 | 12 | ext { 13 | bintrayRepo = 'ViewModelFactory' 14 | bintrayName = 'annotations' 15 | 16 | publishedGroupId = 'com.radutopor.viewmodelfactory' 17 | libraryName = 'ViewModelFactory' 18 | artifact = 'annotations' 19 | 20 | libraryDescription = 'Automatically generate factories for (Android Architecture Component\'s) ViewModels to enable assisted dependency injection' 21 | 22 | siteUrl = 'https://github.com/radutopor/ViewModelFactory' 23 | gitUrl = 'https://github.com/radutopor/ViewModelFactory.git' 24 | 25 | libraryVersion = '1.0.0' 26 | 27 | developerId = 'radutopor' 28 | developerName = 'Radu Topor' 29 | developerEmail = 'radu.ilie.topor@gmail.com' 30 | 31 | licenseName = 'The Apache Software License, Version 2.0' 32 | licenseUrl = 'http://www.apache.org/licenses/LICENSE-2.0.txt' 33 | allLicenses = ["Apache-2.0"] 34 | } 35 | 36 | apply from: 'https://raw.githubusercontent.com/nuuneoi/JCenter/master/installv1.gradle' 37 | apply from: 'https://raw.githubusercontent.com/nuuneoi/JCenter/master/bintrayv1.gradle' -------------------------------------------------------------------------------- /processor/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'java-library' 2 | apply plugin: 'com.github.dcendents.android-maven' 3 | apply plugin: 'com.jfrog.bintray' 4 | 5 | dependencies { 6 | implementation fileTree(dir: 'libs', include: ['*.jar']) 7 | implementation project(path: ':annotations') 8 | implementation "com.google.auto.service:auto-service:1.0-rc4" 9 | } 10 | 11 | sourceCompatibility = "7" 12 | targetCompatibility = "7" 13 | 14 | ext { 15 | bintrayRepo = 'ViewModelFactory' 16 | bintrayName = 'processor' 17 | 18 | publishedGroupId = 'com.radutopor.viewmodelfactory' 19 | libraryName = 'ViewModelFactory' 20 | artifact = 'processor' 21 | 22 | libraryDescription = 'Automatically generate factories for (Android Architecture Component\'s) ViewModels to enable assisted dependency injection' 23 | 24 | siteUrl = 'https://github.com/radutopor/ViewModelFactory' 25 | gitUrl = 'https://github.com/radutopor/ViewModelFactory.git' 26 | 27 | libraryVersion = '1.0.0' 28 | 29 | developerId = 'radutopor' 30 | developerName = 'Radu Topor' 31 | developerEmail = 'radu.ilie.topor@gmail.com' 32 | 33 | licenseName = 'The Apache Software License, Version 2.0' 34 | licenseUrl = 'http://www.apache.org/licenses/LICENSE-2.0.txt' 35 | allLicenses = ["Apache-2.0"] 36 | } 37 | 38 | apply from: 'https://raw.githubusercontent.com/nuuneoi/JCenter/master/installv1.gradle' 39 | apply from: 'https://raw.githubusercontent.com/nuuneoi/JCenter/master/bintrayv1.gradle' -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | apply plugin: 'kotlin-android' 4 | 5 | apply plugin: 'kotlin-android-extensions' 6 | 7 | apply plugin: 'kotlin-kapt' 8 | 9 | kapt { 10 | correctErrorTypes = true 11 | } 12 | 13 | android { 14 | compileSdkVersion 28 15 | defaultConfig { 16 | applicationId "com.radutopor.viewmodelfactory" 17 | minSdkVersion 15 18 | targetSdkVersion 28 19 | versionCode 1 20 | versionName "1.0" 21 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 22 | } 23 | buildTypes { 24 | release { 25 | minifyEnabled false 26 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 27 | } 28 | } 29 | } 30 | 31 | dependencies { 32 | implementation fileTree(dir: 'libs', include: ['*.jar']) 33 | implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" 34 | implementation "androidx.appcompat:appcompat:1.0.1" 35 | 36 | def lifecycle_version = "2.0.0" 37 | implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version" 38 | kapt "androidx.lifecycle:lifecycle-compiler:$lifecycle_version" 39 | testImplementation "androidx.arch.core:core-testing:$lifecycle_version" 40 | 41 | def dagger_version = "2.19" 42 | implementation "com.google.dagger:dagger:$dagger_version" 43 | implementation "com.google.dagger:dagger-android-support:$dagger_version" 44 | kapt "com.google.dagger:dagger-compiler:$dagger_version" 45 | 46 | implementation project(path: ':annotations') 47 | kapt project(path: ':processor') 48 | 49 | testImplementation 'junit:junit:4.12' 50 | androidTestImplementation 'com.android.support.test:runner:1.0.2' 51 | androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2' 52 | } 53 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /.idea/codeStyles/Project.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 6 | 7 | 8 | 18 | 19 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 34 | 35 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 19 | 31 | 32 | 33 | 34 | 35 | 36 | 38 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ViewModelFactory 2 | #### Automatically generate factories for (Android Architecture Component's) ViewModels to enable easy assisted dependency injection 3 | 4 | This is an annotation processing library that generates a `ViewModelProvider.Factory`s for each `ViewModel` that allow easy and clean assisted dependency injection by any JSR-330-compatible library, like Dagger. 5 | This means that any `ViewModel` can be provided with both **common dependencies** _and_ **variable parameters** in the same constructor. 6 | 7 | ``` 8 | @ViewModelFactory 9 | class SampleViewModel(@Provided private val repository: Repository, private val userId: Int) : ViewModel() { 10 | private val greeting = MutableLiveData() 11 | 12 | init { 13 | val user = repository.getUser(userId) 14 | greeting.value = "Hello, $user.name" 15 | } 16 | 17 | fun getGreeting() = greeting as LiveData 18 | } 19 | ``` 20 | ``` 21 | class SampleActivity : AppCompatActivity() { 22 | @Inject 23 | lateinit var sampleViewModelFactory2: SampleViewModelFactory2 24 | 25 | override fun onCreate(savedInstanceState: Bundle?) { 26 | super.onCreate(savedInstanceState) 27 | setContentView(R.layout.activity_sample) 28 | appComponent.inject(this) 29 | 30 | val userId = intent.getIntExtra("USER_ID", -1) 31 | val viewModel = ViewModelProviders.of(this, sampleViewModelFactory2.create(userId)) 32 | .get(SampleViewModel::class.java) 33 | 34 | viewModel.getGreeting().observe(this, Observer { greeting -> 35 | greetingTextView.text = greeting 36 | }) 37 | } 38 | } 39 | ``` 40 | 41 | - `@ViewModelFactory` - Annotate either the `ViewModel` class or the specific constructor to be used by the factory 42 | - `@Provided` - Annotate all constructor arguments that can be provided by the graph of the dependency injection library 43 | - The rest of the variable constructor arguments will be taken by the factory in the `create()` method 44 | - You can inject the generated factory in your `Activity` or `Fragment` and use it to effortlessly construct dependency-satisfied and parametrised `ViewModel`s 45 | 46 | ## Installation 47 | In your `app.gradle` file: 48 | ``` 49 | apply plugin: 'kotlin-kapt' 50 | // The following is currently needed with kapt when a library uses other generated code in its own annotation processing step 51 | // (i.e. Dagger using ViewModelFactory generated classes to complete its dependency graph) 52 | kapt { 53 | correctErrorTypes = true 54 | } 55 | 56 | implementation "com.radutopor.viewmodelfactory:annotations:1.0.0" 57 | kapt "com.radutopor.viewmodelfactory:processor:1.0.0" // use `annotationProcessor` for Java 58 | ``` 59 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 | 66 | 68 | 70 | 72 | 74 | 75 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /processor/src/main/java/com/radutopor/viewmodelfactory/processor/ViewModelFactoryProcessor.java: -------------------------------------------------------------------------------- 1 | package com.radutopor.viewmodelfactory.processor; 2 | 3 | import com.google.auto.service.AutoService; 4 | import com.radutopor.viewmodelfactory.annotations.Provided; 5 | import com.radutopor.viewmodelfactory.annotations.ViewModelFactory; 6 | 7 | import javax.annotation.processing.AbstractProcessor; 8 | import javax.annotation.processing.Processor; 9 | import javax.annotation.processing.RoundEnvironment; 10 | import javax.annotation.processing.SupportedSourceVersion; 11 | import javax.lang.model.SourceVersion; 12 | import javax.lang.model.element.*; 13 | import javax.lang.model.util.ElementFilter; 14 | import javax.tools.Diagnostic; 15 | import javax.tools.JavaFileObject; 16 | import java.io.IOException; 17 | import java.io.Writer; 18 | import java.util.ArrayList; 19 | import java.util.HashSet; 20 | import java.util.List; 21 | import java.util.Set; 22 | 23 | @SupportedSourceVersion(SourceVersion.RELEASE_8) 24 | @AutoService(Processor.class) 25 | public class ViewModelFactoryProcessor extends AbstractProcessor { 26 | @Override 27 | public Set getSupportedAnnotationTypes() { 28 | return new HashSet() {{ 29 | add(ViewModelFactory.class.getCanonicalName()); 30 | }}; 31 | } 32 | 33 | @Override 34 | public boolean process(Set set, RoundEnvironment roundEnvironment) { 35 | for (Element element : roundEnvironment.getElementsAnnotatedWith(ViewModelFactory.class)) { 36 | if (element.getKind() == ElementKind.CONSTRUCTOR) { 37 | createViewModelFactory2((ExecutableElement) element); 38 | } else if (element.getKind() == ElementKind.CLASS) { 39 | List constructors = ElementFilter.constructorsIn(element.getEnclosedElements()); 40 | if (constructors.size() > 1) { 41 | processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Multiple constructors - Annotate one with `ViewModelFactory` instead of class"); 42 | return true; 43 | } else { 44 | createViewModelFactory2(constructors.get(0)); 45 | } 46 | } else { 47 | processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "`ViewModelFactory` annotation can only be applied to classes or constructors"); 48 | return true; 49 | } 50 | } 51 | return false; 52 | } 53 | 54 | private void createViewModelFactory2(ExecutableElement vmConstructor) { 55 | TypeElement viewModel = (TypeElement) vmConstructor.getEnclosingElement(); 56 | String packageName = processingEnv.getElementUtils().getPackageOf(viewModel).getQualifiedName().toString(); 57 | String vmName = viewModel.getSimpleName().toString(); 58 | 59 | StringBuilder factoryMembers = new StringBuilder(); 60 | StringBuilder factoryConstrParams = new StringBuilder(); 61 | StringBuilder factoryConstrStatements = new StringBuilder(); 62 | StringBuilder vmCreateArgs = new StringBuilder(); 63 | StringBuilder factory2Members = new StringBuilder(); 64 | StringBuilder factory2ConstrParams = new StringBuilder(); 65 | StringBuilder factory2ConstrStatements = new StringBuilder(); 66 | StringBuilder factoryCreateParams = new StringBuilder(); 67 | StringBuilder factoryCreateArgs = new StringBuilder(); 68 | 69 | for (VmConstrParam vmConstrParam : getVmConstrParams(vmConstructor)) { 70 | append(factoryMembers, "private final %s;\n", vmConstrParam.getTypeAndName()); 71 | append(factoryConstrParams, ", %s", vmConstrParam.getTypeAndName()); 72 | append(factoryConstrStatements, "this.%1$s = %1$s;\n", vmConstrParam.getName()); 73 | append(vmCreateArgs, ", %s", vmConstrParam.getName()); 74 | if (vmConstrParam.isProvided()) { 75 | append(factory2Members, "private final Provider<%s> %sProvider;\n", vmConstrParam.getType(), vmConstrParam.getName()); 76 | append(factory2ConstrParams, ", Provider<%s> %sProvider", vmConstrParam.getType(), vmConstrParam.getName()); 77 | append(factory2ConstrStatements, "this.%1$sProvider = %1$sProvider;\n", vmConstrParam.getName()); 78 | append(factoryCreateArgs, ", %sProvider.get()", vmConstrParam.getName()); 79 | } else { 80 | append(factoryCreateParams, ", %s", vmConstrParam.getTypeAndName()); 81 | append(factoryCreateArgs, ", %s", vmConstrParam.getName()); 82 | } 83 | } 84 | 85 | trimFirstSeparator(factoryConstrParams); 86 | trimFirstSeparator(vmCreateArgs); 87 | trimFirstSeparator(factory2ConstrParams); 88 | trimFirstSeparator(factoryCreateParams); 89 | trimFirstSeparator(factoryCreateArgs); 90 | 91 | String factory2File = String.format("" + 92 | "package %1$s;\n" + 93 | "\n" + 94 | "import javax.inject.Inject;\n" + 95 | "import javax.inject.Provider;\n" + 96 | "\n" + 97 | "import androidx.annotation.NonNull;\n" + 98 | "import androidx.lifecycle.ViewModel;\n" + 99 | "import androidx.lifecycle.ViewModelProvider;\n" + 100 | "\n" + 101 | "public class %2$sFactory2 {\n" + 102 | " private static class %2$sFactory implements ViewModelProvider.Factory {\n" + 103 | " %3$s\n" + 104 | "\n" + 105 | " public %2$sFactory(%4$s) {\n" + 106 | " %5$s\n" + 107 | " }\n" + 108 | "\n" + 109 | " @NonNull\n" + 110 | " @Override\n" + 111 | " public T create(@NonNull Class modelClass) {\n" + 112 | " return (T) new %2$s(%6$s);\n" + 113 | " }\n" + 114 | " }\n" + 115 | "\n" + 116 | " %7$s\n" + 117 | "\n" + 118 | " @Inject\n" + 119 | " public %2$sFactory2(%8$s) {\n" + 120 | " %9$s\n" + 121 | " }\n" + 122 | "\n" + 123 | " public ViewModelProvider.Factory create(%10$s) {\n" + 124 | " return new %2$sFactory(%11$s);\n" + 125 | " }\n" + 126 | "}\n", 127 | packageName, 128 | vmName, 129 | factoryMembers, 130 | factoryConstrParams, 131 | factoryConstrStatements, 132 | vmCreateArgs, 133 | factory2Members, 134 | factory2ConstrParams, 135 | factory2ConstrStatements, 136 | factoryCreateParams, 137 | factoryCreateArgs); 138 | 139 | try { 140 | JavaFileObject builderFile = processingEnv.getFiler().createSourceFile(viewModel.getQualifiedName() + "Factory2"); 141 | Writer writer = builderFile.openWriter(); 142 | writer.write(factory2File); 143 | writer.flush(); 144 | writer.close(); 145 | } catch (IOException e) { 146 | processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, e.getMessage()); 147 | } 148 | } 149 | 150 | private List getVmConstrParams(ExecutableElement vmConstructor) { 151 | List vmConstrParams = new ArrayList<>(); 152 | for (VariableElement param : vmConstructor.getParameters()) { 153 | vmConstrParams.add(new VmConstrParam( 154 | param.asType().toString(), 155 | param.getSimpleName().toString(), 156 | param.getAnnotation(Provided.class) != null)); 157 | } 158 | return vmConstrParams; 159 | } 160 | 161 | private void append(StringBuilder stringBuilder, String format, String... args) { 162 | stringBuilder.append(String.format(format, args)); 163 | } 164 | 165 | private void trimFirstSeparator(StringBuilder stringBuilder) { 166 | if (stringBuilder.length() > 2) { 167 | stringBuilder.delete(0, 2); 168 | } 169 | } 170 | } 171 | --------------------------------------------------------------------------------