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feat(android): Migrate Plugin to Built-in Kotlin #721

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Merged
ened merged 2 commits into from
Aug 4, 2026
+9 −7
Merged

feat(android): Migrate Plugin to Built-in Kotlin #721

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3a13ce6
check not only AGP+9 but builtInKotlin property to apply kotlin-plugin
EdwynZN Aug 3, 2026
635ea4a
docs(android): correct comment for builtInKotlin=false support (#722)
ened Aug 4, 2026
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16 changes: 9 additions & 7 deletions workmanager_android/android/build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -10,14 +10,16 @@ rootProject.allprojects {

apply plugin: 'com.android.library'

// AGP 9+ ships built-in Kotlin support; older versions need the Kotlin Gradle
// Plugin (KGP) applied explicitly. Do NOT apply KGP on AGP 9+: it is a no-op
// there for library modules (and deprecated), so Kotlin sources only compile
// via AGP's built-in Kotlin (see flutter/flutter#183910 and #710). Apps that
// still set `android.builtInKotlin=false` on AGP 9 must migrate to built-in
// Kotlin — with that flag no Kotlin plugin compiles at all.
// AGP 9+ ships built-in Kotlin support and enables it by default; older
// versions need the Kotlin Gradle Plugin (KGP) applied explicitly. Flutter
// apps set `android.builtInKotlin=false` in gradle.properties
// (flutter/flutter#183910) to keep the legacy KGP path working for
// unmigrated plugins, so this module must apply KGP itself unless built-in
// Kotlin is active. See #710 and #722.
def agpMajor = com.android.Version.ANDROID_GRADLE_PLUGIN_VERSION.tokenize('.')[0] as int
if (agpMajor < 9) {
def builtInKotlin = agpMajor >= 9 &&
project.findProperty('android.builtInKotlin')?.toString() != 'false'
if (!builtInKotlin) {
apply plugin: 'kotlin-android'
}

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