ci: update unsigned iOS build workflow

.github/actions/resolve-flutter-build-metadata/action.yml

@@ -0,0 +1,78 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-action.json
+name: Resolve Flutter package metadata
+description: Resolve Flutter build-name/build-number values, release tag metadata, and artifact naming.
+
+inputs:
+  platform:
+    description: Platform name used for platform-specific release tags.
+    required: true
+  require-tag-build-number:
+    description: Whether platform release tags must include +BUILD_NUMBER.
+    required: false
+    default: 'true'
+
+outputs:
+  build_name:
+    description: Flutter build-name value.
+    value: ${{ steps.metadata.outputs.build_name }}
+  build_number:
+    description: Flutter build-number value.
+    value: ${{ steps.metadata.outputs.build_number }}
+  artifact_ref_name:
+    description: Sanitized ref name for artifact names.
+    value: ${{ steps.metadata.outputs.artifact_ref_name }}
+  is_tag_build:
+    description: Whether the current build resolved to a release tag.
+    value: ${{ steps.metadata.outputs.is_tag_build }}
+
+runs:
+  using: composite
+  steps:
+    - name: Resolve metadata
+      id: metadata
+      shell: bash
+      env:
+        PLATFORM: ${{ inputs.platform }}
+        REQUIRE_TAG_BUILD_NUMBER: ${{ inputs.require-tag-build-number }}
+      run: |
+        set -euo pipefail
+
+        if [[ "${GITHUB_REF_TYPE}" != "tag" ]]; then
+          echo "::error::This package workflow only supports release tags."
+          exit 1
+        fi
+
+        tag_name="${GITHUB_REF_NAME}"
+        if [[ "${tag_name}" =~ ^${PLATFORM}-v([0-9]+)\.([0-9]+)\.([0-9]+)\+([0-9]+)$ ]]; then
+          build_name="${BASH_REMATCH[1]}.${BASH_REMATCH[2]}.${BASH_REMATCH[3]}"
+          build_number="${BASH_REMATCH[4]}"
+        else
+          if [[ "${REQUIRE_TAG_BUILD_NUMBER}" == "true" ]]; then
+            echo "::error::Invalid ${PLATFORM} release tag '${tag_name}'. Expected ${PLATFORM}-vX.Y.Z+B, for example ${PLATFORM}-v0.1.0+5."
+            exit 1
+          fi
+
+          if [[ ! "${tag_name}" =~ ^${PLATFORM}-v([0-9]+)\.([0-9]+)\.([0-9]+)$ ]]; then
+            echo "::error::Invalid ${PLATFORM} release tag '${tag_name}'. Expected ${PLATFORM}-vX.Y.Z+B."
+            exit 1
+          fi
+
+          build_name="${BASH_REMATCH[1]}.${BASH_REMATCH[2]}.${BASH_REMATCH[3]}"
+          build_number="${GITHUB_RUN_NUMBER}"
+        fi
+
+        artifact_ref_name="$(printf '%s' "${tag_name}" | sed 's#[^A-Za-z0-9_.+-]#-#g')"
+
+        echo "build_name=${build_name}" >> "${GITHUB_OUTPUT}"
+        echo "build_number=${build_number}" >> "${GITHUB_OUTPUT}"
+        echo "artifact_ref_name=${artifact_ref_name}" >> "${GITHUB_OUTPUT}"
+        echo "is_tag_build=true" >> "${GITHUB_OUTPUT}"
+
+        {
+          echo "## Package metadata"
+          echo
+          echo "- Platform: ${PLATFORM}"
+          echo "- Tag: ${tag_name}"
+          echo "- Build name: ${build_name}"
+          echo "- Build number: ${build_number}"
+        } >> "${GITHUB_STEP_SUMMARY}"

.github/actions/setup-flutter/action.yml

@@ -0,0 +1,23 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-action.json
+name: Setup Flutter
+description: Install a Flutter SDK from Git and add it to PATH.
+
+inputs:
+  flutter-repository:
+    description: Flutter SDK Git repository.
+    required: false
+    default: https://github.com/flutter/flutter.git
+  flutter-ref:
+    description: Flutter SDK branch, tag, or ref.
+    required: false
+    default: stable
+
+runs:
+  using: composite
+  steps:
+    - name: Install Flutter
+      shell: bash
+      run: |
+        set -euo pipefail
+        git clone --depth 1 --branch "${{ inputs.flutter-ref }}" "${{ inputs.flutter-repository }}" "${RUNNER_TEMP}/flutter"
+        echo "${RUNNER_TEMP}/flutter/bin" >> "${GITHUB_PATH}"

.github/workflows/ios-unsigned-release.yml

@@ -0,0 +1,135 @@
+name: iOS Unsigned Release
+
+on:
+  push:
+    tags:
+      - 'ios-v*'
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ios-unsigned-release-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  package:
+    name: Package unsigned iOS IPA
+    runs-on: macos-latest
+    timeout-minutes: 60
+    env:
+      IOS_BUNDLE_IDENTIFIER: ${{ vars.IOS_BUNDLE_IDENTIFIER }}
+
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Install Flutter stable
+        uses: ./.github/actions/setup-flutter
+
+      - name: Resolve package metadata
+        id: metadata
+        uses: ./.github/actions/resolve-flutter-build-metadata
+        with:
+          platform: ios
+          require-tag-build-number: 'true'
+
+      - name: Show Xcode environment
+        run: |
+          set -euo pipefail
+          xcode-select -p
+          xcodebuild -version
+          swift --version
+
+      - name: Show Flutter environment
+        run: flutter --version
+
+      - name: Precache iOS Flutter artifacts
+        run: flutter precache --ios
+
+      - name: Get Flutter packages
+        run: |
+          set -euo pipefail
+          for attempt in 1 2 3; do
+            if flutter pub get; then
+              exit 0
+            fi
+
+            echo "flutter pub get failed on attempt ${attempt}; retrying after cleaning temporary pub cache files."
+            rm -rf "${HOME}/.pub-cache/_temp"
+            sleep $((attempt * 10))
+          done
+
+          echo "::error::flutter pub get failed after 3 attempts."
+          exit 1
+
+      - name: Install iOS pods
+        run: |
+          set -euo pipefail
+          cd ios
+          pod install
+
+      - name: Apply release bundle identifier
+        run: |
+          set -euo pipefail
+          if [ -z "${IOS_BUNDLE_IDENTIFIER}" ]; then
+            echo "::error::Set repository variable IOS_BUNDLE_IDENTIFIER before creating an iOS release tag."
+            exit 1
+          fi
+
+          if ! printf '%s\n' "${IOS_BUNDLE_IDENTIFIER}" | grep -Eq '^[A-Za-z0-9][A-Za-z0-9.-]*[A-Za-z0-9]$'; then
+            echo "::error::IOS_BUNDLE_IDENTIFIER has an invalid bundle identifier format."
+            exit 1
+          fi
+
+          perl -0pi -e 's/PRODUCT_BUNDLE_IDENTIFIER = com\.example\.techpie;/PRODUCT_BUNDLE_IDENTIFIER = $ENV{IOS_BUNDLE_IDENTIFIER};/g' ios/Runner.xcodeproj/project.pbxproj
+
+          matches=$(grep -c "PRODUCT_BUNDLE_IDENTIFIER = ${IOS_BUNDLE_IDENTIFIER};" ios/Runner.xcodeproj/project.pbxproj)
+          if [ "${matches}" -ne 3 ]; then
+            echo "::error::Expected to update 3 Runner bundle identifier settings, updated ${matches}."
+            exit 1
+          fi
+
+      - name: Build unsigned iOS app
+        run: |
+          set -euo pipefail
+          flutter build ios --release --no-codesign \
+            --build-name "${{ steps.metadata.outputs.build_name }}" \
+            --build-number "${{ steps.metadata.outputs.build_number }}"
+          test -d build/ios/iphoneos/Runner.app
+          actual_bundle_id=$(/usr/libexec/PlistBuddy -c 'Print :CFBundleIdentifier' build/ios/iphoneos/Runner.app/Info.plist)
+          if [ "${actual_bundle_id}" != "${IOS_BUNDLE_IDENTIFIER}" ]; then
+            echo "::error::Expected bundle identifier ${IOS_BUNDLE_IDENTIFIER}, got ${actual_bundle_id}."
+            exit 1
+          fi
+
+      - name: Write unsigned artifact notice
+        run: |
+          set -euo pipefail
+          cat > build/ios/UNSIGNED_ARTIFACT_README.md <<'NOTICE'
+          # Unsigned iOS artifact
+
+          This artifact is unsigned. It cannot be uploaded directly to TestFlight and may not install directly on a device. It is only for verifying that the source code can produce an unsigned iOS package in a macOS/Xcode environment.
+          NOTICE
+
+      - name: Package unsigned IPA
+        run: |
+          set -euo pipefail
+          rm -rf build/ios/ipa
+          mkdir -p build/ios/ipa/Payload
+          cp -R build/ios/iphoneos/Runner.app build/ios/ipa/Payload/Runner.app
+          cd build/ios/ipa
+          ditto -c -k --sequesterRsrc --keepParent Payload TechPie-unsigned.ipa
+          test -f TechPie-unsigned.ipa
+
+      - name: Upload unsigned IPA artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: techpie-ios-unsigned-${{ steps.metadata.outputs.artifact_ref_name }}
+          retention-days: 30
+          if-no-files-found: error
+          path: |
+            build/ios/UNSIGNED_ARTIFACT_README.md
+            build/ios/ipa/TechPie-unsigned.ipa

ios/Runner/NativeGlass/NativeGlassButton.swift

@@ -105,22 +105,29 @@ final class NativeGlassButtonPlatformView: NSObject, FlutterPlatformView {
   private func applyButtonAppearance() {
     let image = symbolImage()
 
+#if compiler(>=6.2)
     if #available(iOS 26.0, *) {
       applyLiquidGlassAppearance(image: image)
-    } else if #available(iOS 15.0, *) {
+      return
+    }
+#endif
+
+    if #available(iOS 15.0, *) {
       applyModernFallbackAppearance(image: image)
     } else {
       applyLegacyFallbackAppearance(image: image)
     }
   }
 
+#if compiler(>=6.2)
   @available(iOS 26.0, *)
   private func applyLiquidGlassAppearance(image: UIImage?) {
     var configuration = UIButton.Configuration.prominentGlass()
     configuration.image = image
 
     button.configuration = configuration
   }
+#endif
 
   @available(iOS 15.0, *)
   private func applyModernFallbackAppearance(image: UIImage?) {

ios/Runner/NativeGlass/NativeGlassConfirmationButton.swift

@@ -114,10 +114,12 @@ final class NativeGlassConfirmationButtonPlatformView: NSObject, FlutterPlatform
   }
 
   private func applyButtonAppearance() {
+#if compiler(>=6.2)
     if #available(iOS 26.0, *) {
       applyLiquidGlassAppearance()
       return
     }
+#endif
 
     let image = symbolImage(named: sfSymbol)
 
@@ -139,6 +141,7 @@ final class NativeGlassConfirmationButtonPlatformView: NSObject, FlutterPlatform
     }
   }
 
+#if compiler(>=6.2)
   @available(iOS 26.0, *)
   private func applyLiquidGlassAppearance() {
     let image = symbolImage(named: sfSymbol)
@@ -155,6 +158,7 @@ final class NativeGlassConfirmationButtonPlatformView: NSObject, FlutterPlatform
 
     button.configuration = configuration
   }
+#endif
 
   private func symbolImage(named systemName: String) -> UIImage? {
     return UIImage(systemName: systemName)?
@@ -184,12 +188,17 @@ final class NativeGlassConfirmationButtonPlatformView: NSObject, FlutterPlatform
     actionSheet.addAction(UIAlertAction(title: "Cancel", style: .cancel))
 
     if let popover = actionSheet.popoverPresentationController {
+#if compiler(>=6.2)
       if #available(iOS 26.0, *) {
         popover.sourceItem = button
       } else {
         popover.sourceView = rootView
         popover.sourceRect = rootView.bounds
       }
+#else
+      popover.sourceView = rootView
+      popover.sourceRect = rootView.bounds
+#endif
     }
 
     controller.present(actionSheet, animated: true)

ios/Runner/NativeGlass/NativeGlassDropdownMenu.swift

@@ -123,13 +123,15 @@ final class NativeGlassDropdownMenuPlatformView: NSObject, FlutterPlatformView {
   private func applyButtonAppearance() {
     let image = symbolImage(named: sfSymbol)
 
+#if compiler(>=6.2)
     if #available(iOS 26.0, *) {
       var configuration = UIButton.Configuration.glass()
       configuration.image = image
       configuration.title = label
       button.configuration = configuration
       return
     }
+#endif
 
     if #available(iOS 15.0, *) {
       var configuration = UIButton.Configuration.plain()

ios/Runner/NativeGlass/NativeGlassSelect.swift

@@ -135,13 +135,15 @@ final class NativeGlassSelectPlatformView: NSObject, FlutterPlatformView {
   private func applyButtonAppearance() {
     let image = symbolImage(named: sfSymbol)
 
+#if compiler(>=6.2)
     if #available(iOS 26.0, *) {
       var configuration = UIButton.Configuration.glass()
       configuration.image = image
       configuration.title = selectedLabel
       button.configuration = configuration
       return
     }
+#endif
 
     if #available(iOS 15.0, *) {
       var configuration = UIButton.Configuration.plain()
@@ -246,12 +248,17 @@ final class NativeGlassSelectPlatformView: NSObject, FlutterPlatformView {
     sheet.addAction(UIAlertAction(title: "Cancel", style: .cancel))
 
     if let popover = sheet.popoverPresentationController {
+#if compiler(>=6.2)
       if #available(iOS 26.0, *) {
         popover.sourceItem = button
       } else {
         popover.sourceView = rootView
         popover.sourceRect = rootView.bounds
       }
+#else
+      popover.sourceView = rootView
+      popover.sourceRect = rootView.bounds
+#endif
     }
 
     controller.present(sheet, animated: true)

ios/Runner/NativeGlass/NativeNavigationBar.swift

@@ -113,10 +113,12 @@ final class NativeNavigationBarPlatformView: NSObject, FlutterPlatformView {
 
     navigationItem.title = configuration.title
     navigationItem.largeTitleDisplayMode = configuration.largeTitleMode ? .always : .never
+#if compiler(>=6.2)
     if #available(iOS 26.0, *) {
       navigationItem.subtitle = configuration.largeTitleMode ? nil : configuration.subtitle
       navigationItem.largeSubtitle = configuration.largeTitleMode ? configuration.subtitle : nil
     }
+#endif
 
     if #available(iOS 16.0, *) {
       let leadingItems = configuration.leadingItems.map(makeBarButtonItem)
@@ -220,9 +222,11 @@ final class NativeNavigationBarPlatformView: NSObject, FlutterPlatformView {
       if #available(iOS 16.0, *) {
         barButtonItem.isHidden = item.hidden
       }
+#if compiler(>=6.2)
       if #available(iOS 26.0, *) {
         barButtonItem.identifier = item.id
       }
+#endif
       return barButtonItem
     }