chore: add java target version

.tool-versions

@@ -0,0 +1,2 @@
+dart 2.19.6
+flutter 3.7.12

.vscode/settings.json

@@ -1,4 +1,4 @@
 {
-    "dart.flutterSdkPath": "~/.asdf/installs/flutter/3.3.0-stable",
-    "dart.sdkPath": "~/.asdf/installs/dart/2.18.0/dart-sdk"
+    "dart.flutterSdkPath": "~/.asdf/installs/flutter/3.7.12-stable",
+    "dart.sdkPath": "~/.asdf/installs/dart/2.19.6/dart-sdk"
 }

android/build.gradle

@@ -2,14 +2,14 @@ group 'jp.wasabeef.ua.client_hints'
 version '1.1.3'
 
 buildscript {
-    ext.kotlin_version = '1.8.21'
+    ext.kotlin_version = '1.8.20'
     repositories {
         google()
         mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.2.0'
+        classpath 'com.android.tools.build:gradle:7.4.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
@@ -27,17 +27,20 @@ apply plugin: 'kotlin-android'
 android {
     compileSdkVersion 33
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
     }
     defaultConfig {
-        minSdkVersion 22
+        minSdkVersion 21
     }
     lintOptions {
         disable 'InvalidPackage'
     }
 }
-
-dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-}

android/gradle.properties

@@ -1,3 +1,3 @@
 org.gradle.jvmargs=-Xmx1536M
-android.useAndroidX=true
-android.enableJetifier=true
+android.useAndroidX=false
+android.enableJetifier=false

example/android/app/build.gradle

@@ -39,7 +39,7 @@ android {
 
     defaultConfig {
         applicationId "jp.wasabeef.ua"
-        minSdkVersion 22
+        minSdkVersion 21
         targetSdkVersion 33
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
@@ -57,5 +57,5 @@ flutter {
 }
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 }

example/android/build.gradle

@@ -1,12 +1,12 @@
 buildscript {
-    ext.kotlin_version = '1.8.21'
+    ext.kotlin_version = '1.8.20'
     repositories {
         google()
         mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.4.0'
+        classpath 'com.android.tools.build:gradle:7.4.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }

example/pubspec.lock

@@ -185,4 +185,4 @@ packages:
     version: "2.1.4"
 sdks:
   dart: ">=2.18.0 <4.0.0"
-  flutter: ">=2.10.0"
+  flutter: ">=3.0.0"

pubspec.yaml

@@ -8,7 +8,7 @@ issue_tracker: https://github.com/wasabeef/flutter_ua_client_hints/issues
 
 environment:
   sdk: '>=2.17.0 <3.0.0'
-  flutter: '>=2.10.0'
+  flutter: '>=3.0.0'
 
 dependencies:
   flutter: