port plugin to package

example/windows/flutter/CMakeLists.txt

@@ -10,6 +10,11 @@ include(${EPHEMERAL_DIR}/generated_config.cmake)
 # https://github.com/flutter/flutter/issues/57146.
 set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper")
 
+# Set fallback configurations for older versions of the flutter tool.
+if (NOT DEFINED FLUTTER_TARGET_PLATFORM)
+  set(FLUTTER_TARGET_PLATFORM "windows-x64")
+endif()
+
 # === Flutter Library ===
 set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll")
 
@@ -92,7 +97,7 @@ add_custom_command(
   COMMAND ${CMAKE_COMMAND} -E env
     ${FLUTTER_TOOL_ENVIRONMENT}
     "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
-      windows-x64 $<CONFIG>
+      ${FLUTTER_TARGET_PLATFORM} $<CONFIG>
   VERBATIM
 )
 add_custom_target(flutter_assemble DEPENDS

example/windows/flutter/generated_plugin_registrant.cc

@@ -6,9 +6,6 @@
 
 #include "generated_plugin_registrant.h"
 
-#include <modal_progress_hud_nsn/modal_progress_hud_nsn_plugin_c_api.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
-  ModalProgressHudNsnPluginCApiRegisterWithRegistrar(
-      registry->GetRegistrarForPlugin("ModalProgressHudNsnPluginCApi"));
 }

example/windows/flutter/generated_plugins.cmake

@@ -3,7 +3,6 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
-  modal_progress_hud_nsn
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST