[ok_http]: Use the Android SDK to generate JNI bindings. (#1229)

pkgs/ok_http/.gitignore

@@ -27,6 +27,3 @@ migrate_working_dir/
 **/doc/api/
 .dart_tool/
 build/
-
-# Ignore the JAR files required to generate JNI Bindings
-jar/

pkgs/ok_http/android/build.gradle

@@ -4,6 +4,8 @@ group = "com.example.ok_http"
 version = "1.0"
 
 buildscript {
+    // Required to support `okhttp:4.12.0`.
+    ext.kotlin_version = '1.9.23'
     repositories {
         google()
         mavenCentral()
@@ -12,6 +14,7 @@ buildscript {
     dependencies {
         // The Android Gradle Plugin knows how to build native code with the NDK.
         classpath("com.android.tools.build:gradle:7.3.0")
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
 

pkgs/ok_http/example/android/app/build.gradle

@@ -56,3 +56,10 @@ android {
 flutter {
     source = "../.."
 }
+
+dependencies {
+    // "com.squareup.okhttp3:okhttp:4.12.0" is only present so that
+    // `jnigen` will work. Applications should not include this line.
+    // The version should be synced with `pkgs/ok_http/android/build.gradle`.
+    implementation('com.squareup.okhttp3:okhttp:4.12.0')
+}

pkgs/ok_http/jnigen.yaml

@@ -1,7 +1,4 @@
-# To regenerate the JNI Bindings, download the OkHttp 4.12.0 JAR file from the Maven Repository
-# and place them in 'jar/'.
-# https://mvnrepository.com/artifact/com.squareup.okhttp3/okhttp/4.12.0
-# Then run the command: dart run jnigen --config jnigen.yaml
+# Regenerate the JNI Bindings using: dart run jnigen --config jnigen.yaml
 
 summarizer:
   backend: asm
@@ -11,6 +8,10 @@ output:
     path: "lib/src/jni/bindings.dart"
     structure: single_file
 
+android_sdk_config:
+  add_gradle_deps: true
+  android_example: "example/"
+
 enable_experiment:
   - "interface_implementation"
 
@@ -81,6 +82,3 @@ exclude:
     - "okhttp3.Headers#-deprecated_size"
     - "okhttp3.Dispatcher#-deprecated_executorService"
     - "okhttp3.Cache#-deprecated_directory"
-
-class_path:
-  - "jar/okhttp-4.12.0.jar"