add scripts

com.unity.uiwidgets/Runtime/Plugins/Android/libUIWidgets.so.meta

   validateReferences: 1
   platformData:
   - first:
-      : Any
-    second:
-      enabled: 0
-      settings:
-        Exclude Android: 0
-        Exclude Editor: 1
-        Exclude Linux64: 1
-        Exclude OSXUniversal: 1
-        Exclude Win: 1
-        Exclude Win64: 1
-        Exclude iOS: 1
-  - first:
-      Android: Android
-    second:
-      enabled: 1
-      settings:
-        CPU: ARMv7
-  - first:
-      enabled: 0
+      enabled: 1
       settings: {}
   - first:
       Editor: Editor
-        CPU: AnyCPU
-        OS: AnyOS
-  - first:
-      Standalone: Linux64
-    second:
-      enabled: 0
-      settings:
-        CPU: None
-  - first:
-      Standalone: OSXUniversal
-    second:
-      enabled: 0
-      settings:
-        CPU: None
-  - first:
-      Standalone: Win
-    second:
-      enabled: 0
-      settings:
-        CPU: None
-  - first:
-      Standalone: Win64
-    second:
-      enabled: 0
-      settings:
-        CPU: None
-  - first:
-      iPhone: iOS
-    second:
-      enabled: 0
-      settings:
-        AddToEmbeddedBinaries: false
-        CPU: AnyCPU
-        CompileFlags: 
-        FrameworkDependencies: 
   userData: 
   assetBundleName: 
   assetBundleVariant: 

engine/Scripts/lib_build_ios.sh

 engine_path=$(pwd)
 runtime_mode=release
-bitcode=""
-while getopts ":r:m:e" opt
+while getopts ":r:m:" opt
 do
     case $opt in
         r)
         runtime_mode=$OPTARG
         ;;
-        e)
-        bitcode="-e" # enable-bitcode switch
-        ;;
         ?)
         echo "unknown param"
         exit 1;;
-python3 lib_build.py -r $engine_path -p ios -m $runtime_mode $bitcode
+python3 lib_build.py -r $engine_path -p ios -m $runtime_mode
 

engine/Scripts/lib_build_ios_bitcode.sh

+engine_path=$(pwd)
+runtime_mode=release
+
+while getopts ":r:m:" opt
+do
+    case $opt in
+        r)
+        engine_path=$OPTARG # set engine_path, depot_tools and flutter engine folder will be put into this path
+        ;;
+        m)
+        runtime_mode=$OPTARG
+        ;;
+        ?)
+        echo "unknown param"
+        exit 1;;
+    esac
+done
+
+python3 lib_build.py -r $engine_path -m $runtime_mode -p ios -e
+