Update gradle config to declarative plugin blocks

See https://docs.flutter.dev/release/breaking-changes/flutter-gradle-plugin-apply

android/app/build.gradle

@@ -1,3 +1,31 @@
+// def localProperties = new Properties()
+// def localPropertiesFile = rootProject.file('local.properties')
+// if (localPropertiesFile.exists()) {
+//     localPropertiesFile.withReader('UTF-8') { reader ->
+//         localProperties.load(reader)
+//     }
+// }
+//
+// def flutterRoot = localProperties.getProperty('flutter.sdk')
+// if (flutterRoot == null) {
+//     throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+// }
+//
+
+// apply plugin: 'com.android.application'
+// apply plugin: 'kotlin-android'
+// apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+// apply plugin: 'com.google.gms.google-services'  // Google Services plugin
+// apply plugin: 'com.google.firebase.crashlytics'
+
+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+    id "dev.flutter.flutter-gradle-plugin"
+    id 'com.google.gms.google-services'  // Google Services plugin
+    id 'com.google.firebase.crashlytics'
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -6,29 +34,17 @@ if (localPropertiesFile.exists()) {
     }
 }
 
-def flutterRoot = localProperties.getProperty('flutter.sdk')
-if (flutterRoot == null) {
-    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
-}
-
 def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
 if (flutterVersionCode == null) {
     flutterVersionCode = '1'
 }
-
 def flutterVersionName = localProperties.getProperty('flutter.versionName')
 if (flutterVersionName == null) {
     flutterVersionName = '1.0'
 }
 
-apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-apply plugin: 'com.google.gms.google-services'  // Google Services plugin
-apply plugin: 'com.google.firebase.crashlytics'
-
 android {
-    compileSdkVersion 33
+    compileSdkVersion 34
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
@@ -62,10 +78,21 @@ android {
     }
 
     buildTypes {
+        /* Notes for the minifyEnable: Flutter 3.19+ does not compile with minSdkVersion <24, unless
+         * this option is set to true. For more information, see
+         * https://stackoverflow.com/a/78019688 and https://stackoverflow.com/a/78149818
+         */
         release {
             signingConfig signingConfigs.release
             // shrinkResources false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            //minifyEnabled true fixes this issue and allows you to use minSdkVersion 21
+            minifyEnabled true
+        }
+
+        debug {
+            //minifyEnabled true fixes this issue and allows you to use minSdkVersion 21
+            minifyEnabled true
         }
     }
 
@@ -81,6 +108,6 @@ flutter {
 }
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+//  implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation 'com.android.support:multidex:1.0.3'
 }

android/build.gradle

@@ -1,17 +1,17 @@
-buildscript {
-    ext.kotlin_version = '1.8.20'
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:7.4.2'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath 'com.google.gms:google-services:4.3.14'  // Google Services plugin
-        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.5.2'
-    }
-}
+// buildscript {
+//     ext.kotlin_version = '1.8.20'
+//     repositories {
+//         google()
+//         mavenCentral()
+//     }
+//
+//     dependencies {
+//         classpath 'com.android.tools.build:gradle:7.4.2'
+//         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+//         classpath 'com.google.gms:google-services:4.3.14'  // Google Services plugin
+//         classpath 'com.google.firebase:firebase-crashlytics-gradle:2.5.2'
+//     }
+// }
 
 allprojects {
     repositories {

android/settings.gradle

@@ -1,11 +1,41 @@
-include ':app'
+// include ':app'
+//
+// def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+// def properties = new Properties()
+//
+// assert localPropertiesFile.exists()
+// localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+//
+// def flutterSdkPath = properties.getProperty("flutter.sdk")
+// assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+// apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
 
-def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
-def properties = new Properties()
 
-assert localPropertiesFile.exists()
-localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+        localPropertiesFile.withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
 
-def flutterSdkPath = properties.getProperty("flutter.sdk")
-assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.4.2" apply false
+    id "org.jetbrains.kotlin.android" version "1.8.20" apply false
+    id 'com.google.gms.google-services' version "4.3.1" apply false  // Google Services plugin
+    id 'com.google.firebase.crashlytics' version "2.9.9" apply false
+}
+
+include ":app"

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -9,6 +9,7 @@ import file_selector_macos
 import firebase_analytics
 import firebase_core
 import firebase_crashlytics
+import firebase_remote_config
 import flutter_local_notifications
 import package_info_plus
 import path_provider_foundation
@@ -21,6 +22,7 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   FLTFirebaseAnalyticsPlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseAnalyticsPlugin"))
   FLTFirebaseCorePlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseCorePlugin"))
   FLTFirebaseCrashlyticsPlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseCrashlyticsPlugin"))
+  FLTFirebaseRemoteConfigPlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseRemoteConfigPlugin"))
   FlutterLocalNotificationsPlugin.register(with: registry.registrar(forPlugin: "FlutterLocalNotificationsPlugin"))
   FPPPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FPPPackageInfoPlusPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))