[ios] platform_views_layout crashes on subsequent runs #61584
Description
Here's a sample log:
platform_channel.dart:161)
stdout: [ +3 ms] <asynchronous suspension>
stdout: [ ] #2 PlatformViewsService.initUiKitView (package:flutter/src/services/platform_views.dart:219)
stdout: [ ] <asynchronous suspension>
stdout: [ ] #3 _UiKitViewState._createNewUiKitView (package:flutter/src/widgets/platform_view.dart:624)
stdout: [ ] <asynchronous suspension>
stdout: [ +1 ms] [VERBOSE-2:ui_dart_state.cc(166)] Unhandled Exception: PlatformException(create_failed, can't create a view on a headless engine, null)
stdout: [ ] #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:572)
stdout: [ ] #1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:161)
stdout: [ ] <asynchronous suspension>
stdout: [ ] #2 PlatformViewsService.initUiKitView (package:flutter/src/services/platform_views.dart:219)
stdout: [ ] <asynchronous suspension>
2020-07-15T14:52:19.045273: INFO [task runner] [platform_views_scroll_perf_ios__timeline_summary] stdout: [ ] #3 _UiKitViewState._createNewUiKitView (package:flutter/src/widgets/platform_view.dart:624)
stdout: [ ] <asynchronous suspension>
stdout: [ ] [VERBOSE-2:ui_dart_state.cc(166)] Unhandled Exception: PlatformException(create_failed, can't create a view on a headless engine, null)
stdout: [ ] #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:572)
stdout: [ ] #1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:161)
stdout: [ ] <asynchronous suspension>
stdout: [ ] #2 PlatformViewsService.initUiKitView (package:flutter/src/services/platform_views.dart:219)
stdout: [ ] <asynchronous suspension>
stdout: [ ] #3 _UiKitViewState._createNewUiKitView (package:flutter/src/widgets/platform_view.dart:624)
stdout: [ ] <asynchronous suspension>
fwiw, the framework fires a message to create the native view, which is handled in https://github.com/flutter/engine/blob/24d2143b98d6b0dfffd52eaad60d3900ea6a5190/shell/platform/darwin/ios/framework/Source/FlutterPlatformViews.mm#L124.