[various] Convert plugin builds to Kotlin gradle by stuartmorgan-g · Pull Request #11172 · flutter/packages

stuartmorgan-g · 2026-03-03T18:05:11Z

Following up from #11169, this converts all the rest of the plugins in the repository to use Kotlin rather than Groovy for plugin build files. As with that PR, this does not change the example apps, only the plugin builds themselves.

Part of flutter/flutter#176065

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This pull request migrates a large number of Android plugin build files from Groovy to Kotlin DSL. The changes are mostly mechanical conversions and appear to be correct, preserving the original build logic. I've found one minor issue where a compiler option was dropped during the conversion in one of the test plugins, which I've commented on.

packages/pigeon/platform_tests/test_plugin/android/build.gradle.kts

tarrinneal · 2026-03-19T21:09:48Z

packages/camera/camera_android_camerax/android/build.gradle

-    kotlinOptions {
-        // This must match the Java version provided in compileOptions.
-        jvmTarget = JavaVersion.VERSION_17.toString()
-    }


no longer needed?

The kotlin { compilerOptions { ... } } section on line 31 is the newer form of this.

tarrinneal · 2026-03-19T21:59:05Z

packages/espresso/android/build.gradle.kts

    // The following Espresso dependency can be either "implementation"
    // or "androidTestImplementation", depending on whether you want the
-    // dependency to appear on your APK's compile classpath or the test APK
+    // dependency to appear on your APK"s compile classpath or the test APK


this doesn't seem intentional

Oops, I thought I fixed all of these. My vi record/playback for classpath standardization wasn't quite as precise as intended on the initial pass.

tarrinneal · 2026-03-19T22:33:06Z

packages/webview_flutter/webview_flutter_android/android/build.gradle

-    kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_17.toString()
-    }
-


here also, I saw that it was still in some of the new files

Same. The new files should all have the new form rather than this.

…ackages#11172)

flutter/packages@8dcfd11...5909bdd 2026-03-25 47866232+chunhtai@users.noreply.github.com [ci] add more permissions for create-pull-request (flutter/packages#11302) 2026-03-25 stuartmorgan@google.com [various] Add `unintended_html_in_doc_comment` to analysis options (flutter/packages#11303) 2026-03-25 matt.boetger@gmail.com Use deprecated dependency until legacy renderer is removed (flutter/packages#11185) 2026-03-25 louisehsu@google.com [in_app_purchase_storekit] Address flaky tests (flutter/packages#11270) 2026-03-25 stuartmorgan@google.com [google_maps_flutter] Fix A2A iOS builds (flutter/packages#11290) 2026-03-25 stuartmorgan@google.com [mustache_template] Fix broken README link (flutter/packages#11306) 2026-03-25 stuartmorgan@google.com [ci] Add a workflow to auto-remove CICD label (flutter/packages#11301) 2026-03-25 stuartmorgan@google.com [various] Convert plugin builds to Kotlin gradle (flutter/packages#11172) 2026-03-25 spkhalad@gmail.com [webview_flutter_platform_interface] Add support for getting cookie (flutter/packages#11037) 2026-03-25 stuartmorgan@google.com [cupertino_icons] Remove empty Dart file (flutter/packages#11308) 2026-03-25 stuartmorgan@google.com [camera] Regenerate iOS example with Swift (flutter/packages#11283) 2026-03-25 tarrinneal@gmail.com [pigeon] Optimize data class equality and hashing in Dart, Kotlin, java, and Swift, adds equality in other languages (flutter/packages#11140) 2026-03-25 katelovett@google.com [two_dimensional_scrollables] Fix span border decorations in flipped cross axes (flutter/packages#11334) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages-flutter-autoroll Please CC flutter-ecosystem@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

As a precursor to converting plugins to use Kotlin Gradle build files in flutter#11172, this does some final standardization of the Groovy versions: - Uses `"` instead of `'` on more lines. - Uses `(...)` and `=` in places where it's optional, instead of just a space. - Uses `minSdk` instead of `minSdkVersion`. - Standardizes vertical whitespace (not necessary for the conversion, but it's something I cleaned up in that PR). This is being done as a precursor PR because I noticed that the files are mostly right on the cusp of being similar enough for git to think they are renames with changes rather than deletion and addition; some are ending up one way, and some the other. Since renames with changes make blame much more useful, I'd like to make the files more similar so that hopefully almost all of them will end up as renames with changes in that PR. ## Pre-Review Checklist [^1]: Regular contributors who have demonstrated familiarity with the repository guidelines only need to comment if the PR is not auto-exempted by repo tooling.

Following up from flutter#11169, this converts all the rest of the plugins in the repository to use Kotlin rather than Groovy for plugin build files. As with that PR, this does not change the example apps, only the plugin builds themselves. Part of flutter/flutter#176065 ## Pre-Review Checklist [^1]: Regular contributors who have demonstrated familiarity with the repository guidelines only need to comment if the PR is not auto-exempted by repo tooling.

…er#184123) flutter/packages@8dcfd11...5909bdd 2026-03-25 47866232+chunhtai@users.noreply.github.com [ci] add more permissions for create-pull-request (flutter/packages#11302) 2026-03-25 stuartmorgan@google.com [various] Add `unintended_html_in_doc_comment` to analysis options (flutter/packages#11303) 2026-03-25 matt.boetger@gmail.com Use deprecated dependency until legacy renderer is removed (flutter/packages#11185) 2026-03-25 louisehsu@google.com [in_app_purchase_storekit] Address flaky tests (flutter/packages#11270) 2026-03-25 stuartmorgan@google.com [google_maps_flutter] Fix A2A iOS builds (flutter/packages#11290) 2026-03-25 stuartmorgan@google.com [mustache_template] Fix broken README link (flutter/packages#11306) 2026-03-25 stuartmorgan@google.com [ci] Add a workflow to auto-remove CICD label (flutter/packages#11301) 2026-03-25 stuartmorgan@google.com [various] Convert plugin builds to Kotlin gradle (flutter/packages#11172) 2026-03-25 spkhalad@gmail.com [webview_flutter_platform_interface] Add support for getting cookie (flutter/packages#11037) 2026-03-25 stuartmorgan@google.com [cupertino_icons] Remove empty Dart file (flutter/packages#11308) 2026-03-25 stuartmorgan@google.com [camera] Regenerate iOS example with Swift (flutter/packages#11283) 2026-03-25 tarrinneal@gmail.com [pigeon] Optimize data class equality and hashing in Dart, Kotlin, java, and Swift, adds equality in other languages (flutter/packages#11140) 2026-03-25 katelovett@google.com [two_dimensional_scrollables] Fix span border decorations in flipped cross axes (flutter/packages#11334) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages-flutter-autoroll Please CC flutter-ecosystem@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

As a precursor to converting plugins to use Kotlin Gradle build files in flutter/packages#11172, this does some final standardization of the Groovy versions: - Uses `"` instead of `'` on more lines. - Uses `(...)` and `=` in places where it's optional, instead of just a space. - Uses `minSdk` instead of `minSdkVersion`. - Standardizes vertical whitespace (not necessary for the conversion, but it's something I cleaned up in that PR). This is being done as a precursor PR because I noticed that the files are mostly right on the cusp of being similar enough for git to think they are renames with changes rather than deletion and addition; some are ending up one way, and some the other. Since renames with changes make blame much more useful, I'd like to make the files more similar so that hopefully almost all of them will end up as renames with changes in that PR. ## Pre-Review Checklist [^1]: Regular contributors who have demonstrated familiarity with the repository guidelines only need to comment if the PR is not auto-exempted by repo tooling.

…er#184123) flutter/packages@8dcfd11...5909bdd 2026-03-25 47866232+chunhtai@users.noreply.github.com [ci] add more permissions for create-pull-request (flutter/packages#11302) 2026-03-25 stuartmorgan@google.com [various] Add `unintended_html_in_doc_comment` to analysis options (flutter/packages#11303) 2026-03-25 matt.boetger@gmail.com Use deprecated dependency until legacy renderer is removed (flutter/packages#11185) 2026-03-25 louisehsu@google.com [in_app_purchase_storekit] Address flaky tests (flutter/packages#11270) 2026-03-25 stuartmorgan@google.com [google_maps_flutter] Fix A2A iOS builds (flutter/packages#11290) 2026-03-25 stuartmorgan@google.com [mustache_template] Fix broken README link (flutter/packages#11306) 2026-03-25 stuartmorgan@google.com [ci] Add a workflow to auto-remove CICD label (flutter/packages#11301) 2026-03-25 stuartmorgan@google.com [various] Convert plugin builds to Kotlin gradle (flutter/packages#11172) 2026-03-25 spkhalad@gmail.com [webview_flutter_platform_interface] Add support for getting cookie (flutter/packages#11037) 2026-03-25 stuartmorgan@google.com [cupertino_icons] Remove empty Dart file (flutter/packages#11308) 2026-03-25 stuartmorgan@google.com [camera] Regenerate iOS example with Swift (flutter/packages#11283) 2026-03-25 tarrinneal@gmail.com [pigeon] Optimize data class equality and hashing in Dart, Kotlin, java, and Swift, adds equality in other languages (flutter/packages#11140) 2026-03-25 katelovett@google.com [two_dimensional_scrollables] Fix span border decorations in flipped cross axes (flutter/packages#11334) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages-flutter-autoroll Please CC flutter-ecosystem@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

stuartmorgan-g added 24 commits March 3, 2026 11:20

Convert plugin build to Kotlin

a9f22ea

Update tool tests

f72f9dd

More fixes

8b6ee1e

Remove Kotlin bits

1c6fbb0

Update test file creation

1d9a09b

Version bump

3a34e12

Undo useJUnitPlatform addition

7bfc8ad

Convert all remaining pluign settings.gradle files

bec135d

Simple bulk transformations

a9c8061

Update lint options

41622f2

Standardize testOptions

c6a8cb2

Config adjustment

11e903c

Kotlin version syntax update

5b0c67a

Remove rootProject

895f104

Consistent whitespace

f5dadd7

Fix more classpaths

6442ad5

Remove sourceSets, as they shouldn't be needed

3ef33d4

Convert unchecked and deprecation suppressions

2b7f2c7

def -> val

eae9f7b

Rename build.gradle files

7097fe9

Compile fixes; option 1

a33e437

Fix lint disabling syntax

c0ea36b

Only useJUnitPlatform where that was already present

47e534b

Version bumps

b9627d5

github-actions bot added p: pigeon p: camera p: espresso p: file_selector p: flutter_plugin_android_lifecycle p: google_maps_flutter labels Mar 3, 2026

stuartmorgan-g marked this pull request as ready for review March 18, 2026 20:33

stuartmorgan-g requested review from bparrishMines, camsim99, gmackall, jesswrd, mboetger, reidbaker and tarrinneal as code owners March 18, 2026 20:33

stuartmorgan-g added the triage-android Should be looked at in Android triage label Mar 18, 2026

gemini-code-assist bot reviewed Mar 18, 2026

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packages/pigeon/platform_tests/test_plugin/android/build.gradle.kts Show resolved Hide resolved

Add accidentally dropped waring-as-error flag

6d53e57

stuartmorgan-g added CICD Run CI/CD and removed CICD Run CI/CD labels Mar 19, 2026

reidbaker approved these changes Mar 19, 2026

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stuartmorgan-g added the autosubmit Merge PR when tree becomes green via auto submit App label Mar 19, 2026

tarrinneal approved these changes Mar 19, 2026

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stuartmorgan-g removed the autosubmit Merge PR when tree becomes green via auto submit App label Mar 20, 2026

Fix accidental '/" change

6de3cf9

stuartmorgan-g added CICD Run CI/CD autosubmit Merge PR when tree becomes green via auto submit App and removed CICD Run CI/CD labels Mar 20, 2026

auto-submit bot merged commit ec1ce5b into flutter:main Mar 25, 2026
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Mar 25, 2026

ec1ce5b84 [various] Convert plugin builds to Kotlin gradle (flutter/p…

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…ackages#11172)

engine-flutter-autoroll mentioned this pull request Mar 25, 2026

Roll Packages from 8dcfd1186ef9 to 5909bdde6090 (13 revisions) flutter/flutter#184123

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[various] Convert plugin builds to Kotlin gradle#11172

[various] Convert plugin builds to Kotlin gradle#11172
auto-submit[bot] merged 37 commits intoflutter:mainfrom
stuartmorgan-g:kotlin-gradle-all-plugins

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stuartmorgan-g commented Mar 3, 2026

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