58 bool hasExplicitBundle = bundle != nil;
63 auto settings = flutter::SettingsFromCommandLine(command_line);
65 settings.task_observer_add = [](intptr_t key,
const fml::closure& callback) {
66 fml::MessageLoop::GetCurrent().AddTaskObserver(key, callback);
69 settings.task_observer_remove = [](intptr_t key) {
70 fml::MessageLoop::GetCurrent().RemoveTaskObserver(key);
73 settings.log_message_callback = [](
const std::string& tag,
const std::string& message) {
76 std::stringstream stream;
78 stream << tag <<
": ";
81 std::string log = stream.str();
82 syslog(LOG_ALERT,
"%.*s", (
int)log.size(), log.c_str());
85 settings.enable_platform_isolates =
true;
91 if (settings.icu_data_path.empty()) {
92 NSString* icuDataPath = [engineBundle pathForResource:
@"icudtl" ofType:
@"dat"];
93 if (icuDataPath.length > 0) {
94 settings.icu_data_path = icuDataPath.UTF8String;
98 if (flutter::DartVM::IsRunningPrecompiledCode()) {
99 if (hasExplicitBundle) {
100 NSString* executablePath = bundle.executablePath;
101 if ([[NSFileManager defaultManager] fileExistsAtPath:executablePath]) {
102 settings.application_library_path.push_back(executablePath.UTF8String);
107 if (settings.application_library_path.empty()) {
108 NSString* libraryName = [mainBundle objectForInfoDictionaryKey:
@"FLTLibraryPath"];
109 NSString* libraryPath = [mainBundle pathForResource:libraryName ofType:
@""];
110 if (libraryPath.length > 0) {
111 NSString* executablePath = [NSBundle bundleWithPath:libraryPath].executablePath;
112 if (executablePath.length > 0) {
113 settings.application_library_path.push_back(executablePath.UTF8String);
120 if (settings.application_library_path.empty()) {
121 NSString* applicationFrameworkPath = [mainBundle pathForResource:
@"Frameworks/App.framework"
123 if (applicationFrameworkPath.length > 0) {
124 NSString* executablePath =
125 [NSBundle bundleWithPath:applicationFrameworkPath].executablePath;
126 if (executablePath.length > 0) {
127 settings.application_library_path.push_back(executablePath.UTF8String);
134 if (settings.assets_path.empty()) {
137 if (assetsPath.length == 0) {
138 NSLog(
@"Failed to find assets path for \"%@\
"", bundle);
140 settings.assets_path = assetsPath.UTF8String;
145 if (!flutter::DartVM::IsRunningPrecompiledCode()) {
146 NSURL* applicationKernelSnapshotURL =
148 relativeToURL:[NSURL fileURLWithPath:assetsPath]];
150 if ([applicationKernelSnapshotURL checkResourceIsReachableAndReturnError:&error]) {
151 settings.application_kernel_asset = applicationKernelSnapshotURL.path.UTF8String;
153 NSLog(
@"Failed to find snapshot at %@: %@", applicationKernelSnapshotURL.path, error);
162 settings.may_insecurely_connect_to_all_domains =
true;
163 settings.domain_network_policy =
"";
166 #if TARGET_OS_SIMULATOR
169 settings.enable_wide_gamut =
false;
173 NSNumber* nsEnableWideGamut = [mainBundle objectForInfoDictionaryKey:
@"FLTEnableWideGamut"];
174 BOOL enableWideGamut =
176 settings.enable_wide_gamut = enableWideGamut;
183 if (!command_line.HasOption(
"enable-impeller")) {
185 NSNumber* enableImpeller = [bundle objectForInfoDictionaryKey:
@"FLTEnableImpeller"];
186 if (enableImpeller == nil) {
188 enableImpeller = [mainBundle objectForInfoDictionaryKey:
@"FLTEnableImpeller"];
191 if (enableImpeller != nil) {
192 settings.enable_impeller = enableImpeller.boolValue;
196 settings.warn_on_impeller_opt_out =
true;
198 NSNumber* enableTraceSystrace = [mainBundle objectForInfoDictionaryKey:
@"FLTTraceSystrace"];
200 if (enableTraceSystrace != nil) {
201 settings.trace_systrace = enableTraceSystrace.boolValue;
204 NSNumber* enableDartAsserts = [mainBundle objectForInfoDictionaryKey:
@"FLTEnableDartAsserts"];
205 if (enableDartAsserts != nil) {
206 settings.dart_flags.push_back(
"--enable-asserts");
209 NSNumber* enableDartProfiling = [mainBundle objectForInfoDictionaryKey:
@"FLTEnableDartProfiling"];
211 if (enableDartProfiling != nil) {
212 settings.enable_dart_profiling = enableDartProfiling.boolValue;
216 NSNumber* leakDartVM = [mainBundle objectForInfoDictionaryKey:
@"FLTLeakDartVM"];
218 if (leakDartVM != nil) {
219 settings.leak_vm = leakDartVM.boolValue;
222 #if FLUTTER_RUNTIME_MODE == FLUTTER_RUNTIME_MODE_DEBUG
225 auto make_mapping_callback = [](
const uint8_t* mapping,
size_t size) {
226 return [mapping, size]() {
return std::make_unique<fml::NonOwnedMapping>(mapping, size); };
229 settings.dart_library_sources_kernel =
231 #endif // FLUTTER_RUNTIME_MODE == FLUTTER_RUNTIME_MODE_DEBUG
239 if (settings.old_gen_heap_size <= 0) {
240 settings.old_gen_heap_size = std::round([NSProcessInfo processInfo].physicalMemory * .48 /
241 flutter::kMegaByteSizeInBytes);
246 CGFloat scale = [UIScreen mainScreen].scale;
247 CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width * scale;
248 CGFloat screenHeight = [UIScreen mainScreen].bounds.size.height * scale;
249 settings.resource_cache_max_bytes_threshold = screenWidth * screenHeight * 12 * 4;
252 NSNumber* enable_embedder_api =
253 [mainBundle objectForInfoDictionaryKey:
@"FLTEnableIOSEmbedderAPI"];
255 if (enable_embedder_api) {
256 settings.enable_embedder_api = enable_embedder_api.boolValue;