[camerax] Add a dependency on kotlin-bom to align versions of kotlin-stdlib (#3960)

A fresh sample app that adds a dependency on the camerax implementation of the camera plugin will fail to build with an error about duplicate classes*. This PR adds a dependency on kotlin-bom to align versions of kotlin transitive dependencies that are used.

The idea for the fix comes [from here](https://youtrack.jetbrains.com/issue/KT-55297/kotlin-stdlib-should-declare-constraints-on-kotlin-stdlib-jdk8-and-kotlin-stdlib-jdk7), which has some more discussion about the problem (but in a different context, unrelated to flutter).

\* The error looks like this:
```
FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:checkDebugDuplicateClasses'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable
   > Duplicate class kotlin.collections.jdk8.CollectionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.10 (org.jetbrains.kotlin:kotlin-stdlib:1.8.10) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30)
     Duplicate class kotlin.internal.jdk7.JDK7PlatformImplementations found in modules jetified-kotlin-stdlib-1.8.10 (org.jetbrains.kotlin:kotlin-stdlib:1.8.10) and jetified-kotlin-stdlib-jdk7-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10)
...
```

Author: gmackall

packages/camera/camera_android_camerax/CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.5.0+2
+
+* Adds a dependency on kotlin-bom to align versions of Kotlin transitive dependencies.
+* Removes note in `README.md` regarding duplicate Kotlin classes issue.
+
 ## 0.5.0+1
 
 * Update `README.md` to include known duplicate Kotlin classes issue.

packages/camera/camera_android_camerax/README.md

@@ -49,15 +49,6 @@ Any specified `ResolutionPreset` wll go unused in favor of CameraX defaults and
 
 `setZoomLevel` is unimplemented.
 
-## Known Issues
-
-### Receiving `Duplicate class kotlin.*` error
-
-If you receive a `Duplicate class kotlin.*` error when using this plugin
-implementation, you may need to update your app's Kotlin version. You can do
-this by finding your app's `android/build.gradle` file and updating the
-`org.jetbrains.kotlin:kotlin-stdlib-jdk7` dependency to at least version 1.18.10.
-
 ## Contributing
 
 For more information on contributing to this plugin, see [`CONTRIBUTING.md`](CONTRIBUTING.md).

packages/camera/camera_android_camerax/android/build.gradle

@@ -72,4 +72,8 @@ dependencies {
     testImplementation 'org.mockito:mockito-inline:5.0.0'
     testImplementation 'androidx.test:core:1.4.0'
     testImplementation 'org.robolectric:robolectric:4.8'
+
+    // org.jetbrains.kotlin:kotlin-bom artifact purpose is to align kotlin stdlib and related code versions.
+    // See: https://youtrack.jetbrains.com/issue/KT-55297/kotlin-stdlib-should-declare-constraints-on-kotlin-stdlib-jdk8-and-kotlin-stdlib-jdk7
+    implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.10"))
 }

packages/camera/camera_android_camerax/example/android/build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.8.0'
+    ext.kotlin_version = '1.7.10'
     repositories {
         google()
         mavenCentral()

packages/camera/camera_android_camerax/pubspec.yaml

@@ -3,7 +3,7 @@ description: Android implementation of the camera plugin using the CameraX libra
 repository: https://github.com/flutter/packages/tree/main/packages/camera/camera_android_camerax
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+camera%22
 
-version: 0.5.0+1
+version: 0.5.0+2
 
 environment:
   sdk: ">=2.19.0 <4.0.0"