Full package nullsafety and Flutter 3 fixes

.gitignore

@@ -66,10 +66,12 @@ pubspec.lock
 **/ios/Flutter/flutter_assets/
 **/ios/ServiceDefinitions.json
 **/ios/Runner/GeneratedPluginRegistrant.*
+**/ios/Flutter/Flutter.podspec
 
 # Exceptions to above rules.
 !**/ios/**/default.mode1v3
 !**/ios/**/default.mode2v3
 !**/ios/**/default.pbxuser
 !**/ios/**/default.perspectivev3
 !/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
+mp_chart/.flutter-plugins-dependencies

mp_chart/.gitignore

@@ -5,9 +5,12 @@
 *.swp
 .DS_Store
 .atom/
+.build/
 .buildlog/
 .history
 .svn/
+.swiftpm/
+migrate_working_dir/
 
 # IntelliJ related
 *.iml
@@ -22,12 +25,13 @@
 
 # Flutter/Dart/Pub related
 **/doc/api/
+**/ios/Flutter/.last_build_id
 .dart_tool/
 .flutter-plugins
-.packages
+.flutter-plugins-dependencies
 .pub-cache/
 .pub/
-build/
+/build/
 
 # Android related
 **/android/**/gradle-wrapper.jar

mp_chart/CHANGELOG.md

@@ -1,3 +1,55 @@
+## 1.8.0 2025-08-04
+* Flutter 3.32 updates
+* Upgrade dependencies 
+## 1.7.1 2024-10-08
+* Example app: Upgrade kotlin plugin from 1.7.20 to 1.8.22 and Gradle from 8.2 to 8.3, to sync it with Flutter 3.24
+## 1.7.0 2024-09-20
+* Update example Gradle to 8.2 DSL
+* BREAKING: Update minimum supported Flutter to 3.22, Dart to 3.3
+## 1.6.0 2024-08-31
+* Flutter 3.22 updates
+* Upgrade dependencies path_provider, screenshot
+* Upgrade example app dependencies url_launcher , permission_handler, cupertino_icons 
+## 1.5.0 2023-12-21
+* Rename Easing to MpEasing to not conflict with Flutter Easing
+* Export most classes in mp_chart so that users only import mp_chart instead of individual classes
+* Flutter 3.16 updates
+* Upgrade dependencies intl
+* Upgrade example app dependencies url_launcher, permission_handler, intl
+## 1.4.0 2023-10-27
+* Update sdk constraints to >=3.0.0 <4.0.0
+* Upgrade dependencies intl, path_provider
+* Upgrade example app dependencies url_launcher, permission_handler, cupertino_icons, intl
+## 1.3.0 2023-06-11
+* Flutter 3.10 updates
+* Upgrade dependencies intl, screenshot, permission_handler 
+## 1.2.2 2023-06-03
+* Upgrade dependencies path_provider, url_launcher
+## 1.2.1 2023-03-17
+* Flutter 3.7 updates
+* Null safety cleanups
+* BarLineChartBasePainter getData, getAxisRange getter improvements
+* Upgrade dependency vector_math
+* Bump sdk constraints to >=2.18.0
+## 1.2.0 2023-03-13
+* Disable image saver(image_gallery_saver) for now, as it's using a very old kotlin-gradle-plugin
+## 1.1.0 2023-03-13
+* Upgrade dependencies path_provider, screenshot, url_launcher, permission_handler
+## 1.0.0 2022-10-16
+* Flutter 3.3 fixes
+* Upgrade dependencies path_provider, path_drawing, optimized_gesture_detector
+* bump sdk from >=2.12.0 to >=2.17.0
+* Example app:
+  ** Upgrade dependencies, url_launcher, permission_handler, cupertino_icons
+## 0.3.3 2022-05-16
+* Flutter 3 fixes.
+* Upgrade dependencies path_provider, vector_math.
+* Example app:
+** Use Uri instead of deprecated String in launchUrl 
+** Upgrade dependencies, url_launcher, permission_handler 
+## 0.3.2 2022-02-06
+* Null safety updates.
+* Upgrade dependencies.
 ## 0.3.1 2020-10-30
 * Updated for Flutter 1.22.0 to use updated Dart intl package 0.17.0-nullsafety.1.
 ## 0.3.0 2020-09-18

mp_chart/example/android/app/build.gradle

@@ -1,3 +1,9 @@
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -6,11 +12,6 @@ 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'
@@ -21,21 +22,28 @@ if (flutterVersionName == null) {
     flutterVersionName = '1.0'
 }
 
-apply plugin: 'com.android.application'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-
 android {
-    compileSdkVersion 28
+    namespace "com.lqy.example"
+    compileSdkVersion flutter.compileSdkVersion
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_11
+        targetCompatibility JavaVersion.VERSION_11
+    }
+
+    kotlinOptions {
+        jvmTarget = '11'
+    }
 
-    lintOptions {
-        disable 'InvalidPackage'
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
     }
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.lqy.example"
-        minSdkVersion 16
-        targetSdkVersion 28
+        minSdkVersion flutter.minSdkVersion
+        targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

mp_chart/example/android/app/src/main/AndroidManifest.xml

@@ -18,7 +18,8 @@
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
-            android:windowSoftInputMode="adjustResize">
+            android:windowSoftInputMode="adjustResize"
+            android:exported="true">
             <!-- This keeps the window background of the activity showing
                  until Flutter renders its first frame. It can be removed if
                  there is no splash screen (such as the default splash screen

mp_chart/example/android/build.gradle

@@ -1,18 +1,7 @@
-buildscript {
-    repositories {
-        google()
-        jcenter()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
-    }
-}
-
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 
@@ -24,6 +13,6 @@ subprojects {
     project.evaluationDependsOn(':app')
 }
 
-task clean(type: Delete) {
+tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }

mp_chart/example/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Fri Jun 23 08:50:38 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip

mp_chart/example/android/settings.gradle

@@ -1,15 +1,26 @@
-include ':app'
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }
+    settings.ext.flutterSdkPath = flutterSdkPath()
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+    includeBuild("${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle")
 
-def plugins = new Properties()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
 }
 
-plugins.each { name, path ->
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
-    include ":$name"
-    project(":$name").projectDir = pluginDirectory
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version '8.7.3' apply false
+    id "org.jetbrains.kotlin.android" version "2.1.0" apply false
 }
+
+include ":app"

mp_chart/example/ios/Flutter/AppFrameworkInfo.plist

@@ -21,6 +21,6 @@
   <key>CFBundleVersion</key>
   <string>1.0</string>
   <key>MinimumOSVersion</key>
-  <string>8.0</string>
+  <string>9.0</string>
 </dict>
 </plist>

mp_chart/example/ios/Flutter/ephemeral/flutter_lldb_helper.py

@@ -0,0 +1,32 @@
+#
+# Generated file, do not edit.
+#
+
+import lldb
+
+def handle_new_rx_page(frame: lldb.SBFrame, bp_loc, extra_args, intern_dict):
+    """Intercept NOTIFY_DEBUGGER_ABOUT_RX_PAGES and touch the pages."""
+    base = frame.register["x0"].GetValueAsAddress()
+    page_len = frame.register["x1"].GetValueAsUnsigned()
+
+    # Note: NOTIFY_DEBUGGER_ABOUT_RX_PAGES will check contents of the
+    # first page to see if handled it correctly. This makes diagnosing
+    # misconfiguration (e.g. missing breakpoint) easier.
+    data = bytearray(page_len)
+    data[0:8] = b'IHELPED!'
+
+    error = lldb.SBError()
+    frame.GetThread().GetProcess().WriteMemory(base, data, error)
+    if not error.Success():
+        print(f'Failed to write into {base}[+{page_len}]', error)
+        return
+
+def __lldb_init_module(debugger: lldb.SBDebugger, _):
+    target = debugger.GetDummyTarget()
+    # Caveat: must use BreakpointCreateByRegEx here and not
+    # BreakpointCreateByName. For some reasons callback function does not
+    # get carried over from dummy target for the later.
+    bp = target.BreakpointCreateByRegex("^NOTIFY_DEBUGGER_ABOUT_RX_PAGES$")
+    bp.SetScriptCallbackFunction('{}.handle_new_rx_page'.format(__name__))
+    bp.SetAutoContinue(True)
+    print("-- LLDB integration loaded --")

mp_chart/example/ios/Flutter/ephemeral/flutter_lldbinit

@@ -0,0 +1,5 @@
+#
+# Generated file, do not edit.
+#
+
+command script import --relative-to-command-file flutter_lldb_helper.py

mp_chart/example/ios/Podfile

@@ -10,63 +10,32 @@ project 'Runner', {
   'Release' => :release,
 }
 
-def parse_KV_file(file, separator='=')
-  file_abs_path = File.expand_path(file)
-  if !File.exists? file_abs_path
-    return [];
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
   end
-  pods_ary = []
-  skip_line_start_symbols = ["#", "/"]
-  File.foreach(file_abs_path) { |line|
-      next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }
-      plugin = line.split(pattern=separator)
-      if plugin.length == 2
-        podname = plugin[0].strip()
-        path = plugin[1].strip()
-        podpath = File.expand_path("#{path}", file_abs_path)
-        pods_ary.push({:name => podname, :path => podpath});
-      else
-        puts "Invalid plugin specification: #{line}"
-      end
-  }
-  return pods_ary
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
 end
 
-target 'Runner' do
-  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
-  # referring to absolute paths on developers' machines.
-  system('rm -rf .symlinks')
-  system('mkdir -p .symlinks/plugins')
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
 
-  # Flutter Pods
-  generated_xcode_build_settings = parse_KV_file('./Flutter/Generated.xcconfig')
-  if generated_xcode_build_settings.empty?
-    puts "Generated.xcconfig must exist. If you're running pod install manually, make sure flutter pub get is executed first."
-  end
-  generated_xcode_build_settings.map { |p|
-    if p[:name] == 'FLUTTER_FRAMEWORK_DIR'
-      symlink = File.join('.symlinks', 'flutter')
-      File.symlink(File.dirname(p[:path]), symlink)
-      pod 'Flutter', :path => File.join(symlink, File.basename(p[:path]))
-    end
-  }
+flutter_ios_podfile_setup
 
-  # Plugin Pods
-  plugin_pods = parse_KV_file('../.flutter-plugins')
-  plugin_pods.map { |p|
-    symlink = File.join('.symlinks', 'plugins', p[:name])
-    File.symlink(p[:path], symlink)
-    pod p[:name], :path => File.join(symlink, 'ios')
-  }
-end
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
 
-# Prevent Cocoapods from embedding a second Flutter framework and causing an error with the new Xcode build system.
-install! 'cocoapods', :disable_input_output_paths => true
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+end
 
 post_install do |installer|
   installer.pods_project.targets.each do |target|
-    target.build_configurations.each do |config|
-      config.build_settings['ENABLE_BITCODE'] = 'NO'
-    end
+    flutter_additional_ios_build_settings(target)
   end
 end