bump Gradle to 8.12, AGP to 8.8, Kotlin to 2.1 (#990)

* [android] bump Gradle to 8.12, AGP to 8.8, Kotlin to 2.1

* [ci] prepare: use Flutter 3.27.x instead of Flutter 3.19.x

* update all Dart dependencies

* bump min Flutter to 3.27.0

Author: bartekpacia

Diff for: .github/workflows/prepare.yaml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        flutter-version: ["3.19.x"]
+        flutter-version: ["3.27.x"]
 
     steps:
       - name: Clone repository

Diff for: CHANGELOG.md

@@ -1,3 +1,11 @@
+## Unreleased
+
+- Dependencies update (#990)
+  - **Bump minimum Flutter to 3.27**
+  - Update leancode_lint and fix all new warnings
+  - Bump Gradle to 8.8
+  - Bump Kotlin to 2.1.0
+
 ## 1.11.8
 
 - Allow nullable Content-Yype (#966)

Diff for: android/build.gradle

@@ -9,9 +9,9 @@ buildscript {
     }
 
     dependencies {
-        classpath "com.android.tools.build:gradle:7.4.2"
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.0"
-        classpath "org.jlleitschuh.gradle:ktlint-gradle:11.5.0"
+        classpath "com.android.tools.build:gradle:8.8.0"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:2.1.0"
+        classpath "org.jlleitschuh.gradle:ktlint-gradle:12.1.2"
     }
 }
 
@@ -21,20 +21,20 @@ repositories {
 }
 
 apply plugin: "com.android.library"
-apply plugin: "kotlin-android"
+apply plugin: "org.jetbrains.kotlin.android"
 apply plugin: "org.jlleitschuh.gradle.ktlint"
 
 android {
     namespace = "vn.hunghd.flutterdownloader"
     compileSdk = 35
 
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
     }
 
     kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_1_8
+        jvmTarget = "11"
         // allWarningsAsErrors = true // TODO(bartekpacia): Re-enable
     }
 

Diff for: example/android/app/build.gradle

@@ -4,44 +4,26 @@ plugins {
     id "dev.flutter.flutter-gradle-plugin"
 }
 
-def localProperties = new Properties()
-def localPropertiesFile = rootProject.file("local.properties")
-if (localPropertiesFile.exists()) {
-    localPropertiesFile.withReader("UTF-8") { reader ->
-        localProperties.load(reader)
-    }
-}
-
-def flutterVersionCode = localProperties.getProperty("flutter.versionCode")
-if (flutterVersionCode == null) {
-    flutterVersionCode = "1"
-}
-
-def flutterVersionName = localProperties.getProperty("flutter.versionName")
-if (flutterVersionName == null) {
-    flutterVersionName = "1.0"
-}
-
 android {
     namespace = "vn.hunghd.example"
     compileSdk = 35
     ndkVersion = flutter.ndkVersion
 
     defaultConfig {
         applicationId "vn.hunghd.example"
-        minSdk = 21
-        targetSdk = 35
-        versionCode = flutterVersionCode.toInteger()
-        versionName = flutterVersionName
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
     }
 
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
     }
 
     kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_1_8
+        jvmTarget = "11"
     }
 
     buildTypes {
@@ -53,5 +35,5 @@ android {
 }
 
 flutter {
-    source "../.."
+    source = "../.."
 }

Diff for: example/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

Diff for: example/android/settings.gradle

@@ -18,8 +18,8 @@ pluginManagement {
 
 plugins {
     id("dev.flutter.flutter-plugin-loader")
-    id("com.android.application") version ('8.7.2') apply false
-    id("org.jetbrains.kotlin.android") version ("1.9.23") apply false
+    id("com.android.application") version ("8.8.0") apply false
+    id("org.jetbrains.kotlin.android") version ("2.1.0") apply false
 }
 
 include(":app")

Diff for: example/pubspec.yaml

@@ -4,22 +4,22 @@ version: 1.0.0+1
 publish_to: none
 
 environment:
-  sdk: ">=3.3.0 <4.0.0"
-  flutter: ">=3.19.0"
+  sdk: ">=3.6.0 <4.0.0"
+  flutter: ">=3.27.0"
 
 dependencies:
-  device_info_plus: ^10.1.0
+  device_info_plus: ^11.2.1
   flutter:
     sdk: flutter
   flutter_downloader:
     path: ../
-  path_provider: ^2.1.3
+  path_provider: ^2.1.5
   permission_handler: ^11.3.1
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  leancode_lint: ^12.1.0
+  leancode_lint: ^15.0.0
 
 flutter:
   uses-material-design: true

Diff for: lib/flutter_downloader.dart

@@ -9,8 +9,7 @@
 ///
 /// * author: hunghd
 /// * email: [email protected]
-
-library flutter_downloader;
+library;
 
 export 'src/downloader.dart';
 export 'src/exceptions.dart';

Diff for: lib/src/downloader.dart

@@ -1,3 +1,4 @@
+// In some cases, it's hard to get around calls on 'dynamic'.
 // ignore_for_file: avoid_dynamic_calls
 
 import 'dart:async';
@@ -438,6 +439,7 @@ class FlutterDownloader {
   /// Prints [message] to console if [_debug] is true.
   static void _log(String? message) {
     if (_debug) {
+      // Using print here seeems good enough.
       // ignore: avoid_print
       print(message);
     }

Diff for: pubspec.yaml

@@ -15,8 +15,8 @@ flutter:
         pluginClass: FlutterDownloaderPlugin
 
 environment:
-  sdk: ">=3.3.0 <4.0.0"
-  flutter: ">=3.19.0"
+  sdk: ">=3.6.0 <4.0.0"
+  flutter: ">=3.27.0"
 
 dependencies:
   flutter:
@@ -25,4 +25,4 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  leancode_lint: ^12.1.0
+  leancode_lint: ^15.0.0