Working Download Files on iOS

ios/Podfile

@@ -0,0 +1,87 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def parse_KV_file(file, separator='=')
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return [];
+  end
+  generated_key_values = {}
+  skip_line_start_symbols = ["#", "/"]
+  File.foreach(file_abs_path) do |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)
+      generated_key_values[podname] = podpath
+    else
+      puts "Invalid plugin specification: #{line}"
+    end
+  end
+  generated_key_values
+end
+
+target 'Runner' do
+  # Flutter Pod
+
+  copied_flutter_dir = File.join(__dir__, 'Flutter')
+  copied_framework_path = File.join(copied_flutter_dir, 'Flutter.framework')
+  copied_podspec_path = File.join(copied_flutter_dir, 'Flutter.podspec')
+  unless File.exist?(copied_framework_path) && File.exist?(copied_podspec_path)
+    # Copy Flutter.framework and Flutter.podspec to Flutter/ to have something to link against if the xcode backend script has not run yet.
+    # That script will copy the correct debug/profile/release version of the framework based on the currently selected Xcode configuration.
+    # CocoaPods will not embed the framework on pod install (before any build phases can generate) if the dylib does not exist.
+
+    generated_xcode_build_settings_path = File.join(copied_flutter_dir, 'Generated.xcconfig')
+    unless File.exist?(generated_xcode_build_settings_path)
+      raise "Generated.xcconfig must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+    end
+    generated_xcode_build_settings = parse_KV_file(generated_xcode_build_settings_path)
+    cached_framework_dir = generated_xcode_build_settings['FLUTTER_FRAMEWORK_DIR'];
+
+    unless File.exist?(copied_framework_path)
+      FileUtils.cp_r(File.join(cached_framework_dir, 'Flutter.framework'), copied_flutter_dir)
+    end
+    unless File.exist?(copied_podspec_path)
+      FileUtils.cp(File.join(cached_framework_dir, 'Flutter.podspec'), copied_flutter_dir)
+    end
+  end
+
+  # Keep pod path relative so it can be checked into Podfile.lock.
+  pod 'Flutter', :path => 'Flutter'
+
+  # Plugin Pods
+
+  # 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')
+  plugin_pods = parse_KV_file('../.flutter-plugins')
+  plugin_pods.each do |name, path|
+    symlink = File.join('.symlinks', 'plugins', name)
+    File.symlink(path, symlink)
+    pod name, :path => File.join(symlink, 'ios')
+  end
+end
+
+# 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
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      config.build_settings['ENABLE_BITCODE'] = 'NO'
+    end
+  end
+end

ios/Podfile.lock

@@ -0,0 +1,88 @@
+PODS:
+  - Flutter (1.0.0)
+  - flutter_downloader (0.0.1):
+    - Flutter
+  - flutter_native_timezone (0.0.1):
+    - Flutter
+  - package_info (0.0.1):
+    - Flutter
+  - path_provider (0.0.1):
+    - Flutter
+  - permission_handler (3.3.0):
+    - Flutter
+  - shared_preferences (0.0.1):
+    - Flutter
+  - shared_preferences_macos (0.0.1):
+    - Flutter
+  - shared_preferences_web (0.0.1):
+    - Flutter
+  - url_launcher (0.0.1):
+    - Flutter
+  - url_launcher_macos (0.0.1):
+    - Flutter
+  - url_launcher_web (0.0.1):
+    - Flutter
+  - webview_flutter (0.0.1):
+    - Flutter
+
+DEPENDENCIES:
+  - Flutter (from `Flutter`)
+  - flutter_downloader (from `.symlinks/plugins/flutter_downloader/ios`)
+  - flutter_native_timezone (from `.symlinks/plugins/flutter_native_timezone/ios`)
+  - package_info (from `.symlinks/plugins/package_info/ios`)
+  - path_provider (from `.symlinks/plugins/path_provider/ios`)
+  - permission_handler (from `.symlinks/plugins/permission_handler/ios`)
+  - shared_preferences (from `.symlinks/plugins/shared_preferences/ios`)
+  - shared_preferences_macos (from `.symlinks/plugins/shared_preferences_macos/ios`)
+  - shared_preferences_web (from `.symlinks/plugins/shared_preferences_web/ios`)
+  - url_launcher (from `.symlinks/plugins/url_launcher/ios`)
+  - url_launcher_macos (from `.symlinks/plugins/url_launcher_macos/ios`)
+  - url_launcher_web (from `.symlinks/plugins/url_launcher_web/ios`)
+  - webview_flutter (from `.symlinks/plugins/webview_flutter/ios`)
+
+EXTERNAL SOURCES:
+  Flutter:
+    :path: Flutter
+  flutter_downloader:
+    :path: ".symlinks/plugins/flutter_downloader/ios"
+  flutter_native_timezone:
+    :path: ".symlinks/plugins/flutter_native_timezone/ios"
+  package_info:
+    :path: ".symlinks/plugins/package_info/ios"
+  path_provider:
+    :path: ".symlinks/plugins/path_provider/ios"
+  permission_handler:
+    :path: ".symlinks/plugins/permission_handler/ios"
+  shared_preferences:
+    :path: ".symlinks/plugins/shared_preferences/ios"
+  shared_preferences_macos:
+    :path: ".symlinks/plugins/shared_preferences_macos/ios"
+  shared_preferences_web:
+    :path: ".symlinks/plugins/shared_preferences_web/ios"
+  url_launcher:
+    :path: ".symlinks/plugins/url_launcher/ios"
+  url_launcher_macos:
+    :path: ".symlinks/plugins/url_launcher_macos/ios"
+  url_launcher_web:
+    :path: ".symlinks/plugins/url_launcher_web/ios"
+  webview_flutter:
+    :path: ".symlinks/plugins/webview_flutter/ios"
+
+SPEC CHECKSUMS:
+  Flutter: 0e3d915762c693b495b44d77113d4970485de6ec
+  flutter_downloader: 058b9c41564a90500f67f3e432e3524613a7fd83
+  flutter_native_timezone: e72ff1900460ff57cfd331d1758050c9269f3e99
+  package_info: 48b108e75b8802c2d5e126f208ef540561c98aef
+  path_provider: fb74bd0465e96b594bb3b5088ee4a4e7bb1f2a9d
+  permission_handler: 67637977b227d62d46bfbf524f335f8568de5a73
+  shared_preferences: 430726339841afefe5142b9c1f50cb6bd7793e01
+  shared_preferences_macos: f3f29b71ccbb56bf40c9dd6396c9acf15e214087
+  shared_preferences_web: 141cce0c3ed1a1c5bf2a0e44f52d31eeb66e5ea9
+  url_launcher: a1c0cc845906122c4784c542523d8cacbded5626
+  url_launcher_macos: fd7894421cd39320dce5f292fc99ea9270b2a313
+  url_launcher_web: e5527357f037c87560776e36436bf2b0288b965c
+  webview_flutter: 1aa7604e6cdb451a9b7ed2c37d5454c0b440246b
+
+PODFILE CHECKSUM: 3dbe063e9c90a5d7c9e4e76e70a821b9e2c1d271
+
+COCOAPODS: 1.8.3

ios/Runner.xcodeproj/project.pbxproj

@@ -47,6 +47,7 @@
 		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
 		3B80C3931E831B6300D905FE /* App.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = App.framework; path = Flutter/App.framework; sourceTree = "<group>"; };
 		3D4BC0D723C787F7002D08EA /* Debug-brb.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Debug-brb.xcconfig"; sourceTree = "<group>"; };
+		3D6BD53C240D9194002B2EA4 /* libsqlite3.tbd */ = {isa = PBXFileReference; lastKnownFileType = "sourcecode.text-based-dylib-definition"; name = libsqlite3.tbd; path = usr/lib/libsqlite3.tbd; sourceTree = SDKROOT; };
 		40D42FD375749A70301C939A /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
 		7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
@@ -81,6 +82,7 @@
 		29E3041B0FE1DA60C9EFE097 /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
+				3D6BD53C240D9194002B2EA4 /* libsqlite3.tbd */,
 				BE79F876E04DB7AC9481B591 /* libPods-Runner.a */,
 			);
 			name = Frameworks;
@@ -192,6 +194,7 @@
 				TargetAttributes = {
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
+						DevelopmentTeam = WP53SSE8S6;
 					};
 				};
 			};
@@ -399,8 +402,9 @@
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Manual;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = S8QB4VV633;
+				DEVELOPMENT_TEAM = "";
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -412,8 +416,9 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.schulcloud;
+				PRODUCT_BUNDLE_IDENTIFIER = org.schulcloud;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Profile;
@@ -479,6 +484,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				DEVELOPMENT_TEAM = WP53SSE8S6;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -490,7 +496,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.schulcloud;
+				PRODUCT_BUNDLE_IDENTIFIER = org.schulcloud;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				VERSIONING_SYSTEM = "apple-generic";
 			};
@@ -550,6 +556,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				DEVELOPMENT_TEAM = WP53SSE8S6;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -561,7 +568,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.schulcloud;
+				PRODUCT_BUNDLE_IDENTIFIER = org.schulcloud;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				VERSIONING_SYSTEM = "apple-generic";
 			};
@@ -676,6 +683,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				DEVELOPMENT_TEAM = WP53SSE8S6;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -687,7 +695,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.schulcloud;
+				PRODUCT_BUNDLE_IDENTIFIER = org.schulcloud;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				VERSIONING_SYSTEM = "apple-generic";
 			};
@@ -699,6 +707,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				DEVELOPMENT_TEAM = WP53SSE8S6;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -710,7 +719,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.schulcloud;
+				PRODUCT_BUNDLE_IDENTIFIER = org.schulcloud;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				VERSIONING_SYSTEM = "apple-generic";
 			};

ios/Runner/AppDelegate.m

@@ -1,11 +1,19 @@
 #include "AppDelegate.h"
 #include "GeneratedPluginRegistrant.h"
+#include "FlutterDownloaderPlugin.h"
 
 @implementation AppDelegate
 
+void registerPlugins(NSObject<FlutterPluginRegistry>* registry) {
+  if (![registry hasPlugin:@"FlutterDownloaderPlugin"]) {
+     [FlutterDownloaderPlugin registerWithRegistrar:[registry registrarForPlugin:@"FlutterDownloaderPlugin"]];
+  }
+}
+
 - (BOOL)application:(UIApplication *)application
     didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
   [GeneratedPluginRegistrant registerWithRegistry:self];
+  [FlutterDownloaderPlugin setPluginRegistrantCallback:registerPlugins];
   // Override point for customization after application launch.
   return [super application:application didFinishLaunchingWithOptions:launchOptions];
 }

ios/Runner/Base.lproj/Main.storyboard

@@ -1,8 +1,10 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="15705" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina6_1" orientation="portrait" appearance="light"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="15706"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
         <!--Flutter View Controller-->
@@ -14,13 +16,14 @@
                         <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
                     </layoutGuides>
                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                     </view>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
             </objects>
+            <point key="canvasLocation" x="34" y="31"/>
         </scene>
     </scenes>
 </document>

ios/Runner/Info.plist

@@ -22,10 +22,13 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>fetch</string>
+		<string>remote-notification</string>
+	</array>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
-	<key>io.flutter.embedded_views_preview</key>
-	<string>true</string>
 	<key>UIMainStoryboardFile</key>
 	<string>Main</string>
 	<key>UISupportedInterfaceOrientations</key>
@@ -43,5 +46,7 @@
 	</array>
 	<key>UIViewControllerBasedStatusBarAppearance</key>
 	<false/>
+	<key>io.flutter.embedded_views_preview</key>
+	<string>true</string>
 </dict>
 </plist>