message: Update development-guide to cross compile android on Windows
diff: @@ -79,27 +79,28 @@ Cesium for Unreal depends on Cesium's high-precision geospatial C++ library - [C
  ### Android
  -#### Prerequisites for Cross Compiling on Linux
  +#### Prerequisites for Cross Compiling on Windows
  -* Unreal Engine 4.26 or newer. Follow the [Unreal Engine Linux Quikstart Guide](https://docs.unrealengine.com/en-US/SharingAndReleasing/Linux/BeginnerLinuxDeveloper/SettingUpAnUnrealWorkflow/index.html) to compile Unreal Engine on Linux.
  -* Android NDK r21 (r21e recommended), download from https://developer.android.com/ndk/downloads.
  +* Unreal Engine 4.26 or newer.
  +* Visual Studio 2017 or newer.
  * Common development tools like Git and CMake.
  +* Android NDK r21, download from https://developer.android.com/ndk/downloads.
  -#### Cross Compiling on Linux
  -
  -1. Compile Unreal Engine and set the following environment variables either temporary in your terminal or in `.bashrc`.
  +#### Cross Compiling on Windows
  +1. Download and extract the Android NDK zip. Then set the environment variable either in command line or system variables.
  ```cmd
  export ANDROID_NDK_ROOT=<path_to_android_ndk>
  ```
  -2. Clone the repository using `git clone --recursive git@github.com:CesiumGS/cesium-unreal.git`.
  +2. Follow the steps for [Windows](#windows) above.
  3. From the `cesium-unreal/extern` directory, run the following commands to build `cesium-native`.
  ```bash
  - cmake -B build -S . -DCMAKE_TOOLCHAIN_FILE="unreal-android-toolchain.cmake" -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_BUILD_TYPE=Release # or Debug, RelWithDebInfo
  + cmake -B build-android -S . -G Ninja -DCMAKE_TOOLCHAIN_FILE="unreal-android-toolchain.cmake" -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_BUILD_TYPE=Release # or Debug, RelWithDebInfo
  ```
  -4. Compile Cesium Native using `cmake --build build --target install`.
  +4. Compile Cesium Native using `cmake --build build-android --config Release --target install`.
  5. Point your Unreal Engine Project to the `CesiumForUnreal.uplugin` file to load the plugin into Unreal Engine.
  +6. To package the plugin, run the `RunUAT.bat` command with options `-TargetPlatform=Win64+Android -Platform=Win64`.
  