buildscript {
  ext.kotlin_version = "1.4.0"
  repositories {
    google()
    jcenter()
  }
  dependencies {
    classpath 'com.android.tools.build:gradle:4.0.1'
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
  }
}
 
allprojects {
  repositories {
    google()
    jcenter()
  }
}
 
task clean(type: Delete) {
  delete rootProject.buildDir
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
 
android {
  compileSdkVersion 30
  buildToolsVersion "30.0.2"
 
  defaultConfig {
    applicationId " ... "
    minSdkVersion 28
    targetSdkVersion 30
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
  }
 
  buildTypes {
    release {
      minifyEnabled false
      proguardFiles getDefaultProguardFile(
                        'proguard-android-optimize.txt'),
                        'proguard-rules.pro'}
  }
}
 
dependencies {
  implementation fileTree(dir: "libs", include: ["*.jar"])
  implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
  ...
  testImplementation 'junit:junit:4.13'
  androidTestImplementation 'androidx.test.ext:junit:1.1.2'
  androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
  ...
}

android {
  ...
  compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
  }
  ...
  kotlinOptions {
    jvmTarget = '1.8'
    useIR = true
  }
  ...
}

android {
  ...
  composeOptions {
    kotlinCompilerExtensionVersion compose_version
    kotlinCompilerVersion '1.4.0'
  }
  ...
}