HelloWorld

Cross Platform C++ Hello World example with minimal dependencies. Works on iOS (Phone, watch, TV, etc), Android, Windows, OSX, Linux. Shared C++ code is in HelloLib.cpp. And each platform has it's own application that calls the shared library.

Required to build

To build this example you will need the following tools:

• CMake - on all platforms
• Ninja - For building on Mac
• Visual Studio - to build for Windows
• XCode - to build for Mac
• Android Studio to build for Android

Building

On Windows

• From the commnad line run Scripts/BuildWindowsAll.cmd to create all flavors of HelloLib.lib
• Open the HelloWorld.sln with Visual Studio.
• Select the startup project and build/run

On Mac

• From the commnad line run Scripts/BuildAppleAll.sh to create all flavors of libHelloLib.a
• From the command line run the corresponding cmake install for the app you want to build.

  • Some examples:

    • Targetting Mac OSX running on apple silicon cmake --install "./Build/HelloLib/OSX/ARM64" --config Debug
    • Targetting Mac OSX running on Intel Mac cmake --install "./Build/HelloLib/OSX/Intel" --config Debug
    • Targetting iPhone Simulator on Apple silicon cmake --install "./Build/HelloLib/iOS/ARM64_Simulator" --config Debug
    • etc.

  • ./Scripts/BuildAppleDebug.sh can also be used to build and install a specific flavor

    • MAC - for intel based Mac's
    • MAC_ARM64 - for OSX running on Apple silicon
    • OS64 - for iPhone
    • SIMULATOR64 - for iPhone simulator running on Intel Mac
    • SIMULATORARM64 - for iPhone simulator running on Apple silicon
    • TVOS - for apple TV device
    • SIMULATOR_TVOS - for TV simulator running on Intel Mac
    • SIMULATORARM64_TVOS - for TV simulator running on Apple silicon
    • WATCHOS - for apple watch device
    • SIMULATOR_WATCHOS - for apple watch simulator running on Intel Mac
    • SIMULATORARM64_WATCHOS - for apple watch simulator running on Apple silicon
• Open the HelloWorld.xcodeproj with XCode and select a target config for the app.
  • HelloWorld/XCode/App for Mac, Phone, TV
  • HelloWorld/XCode/Watch for Watch. The apple Watch requires a different app project.
• Remember to run the correct cmake --install before building

On Android

• Use Android studio to open, build and run the project HelloWorld/AndroidStudio

on Linux

• From the command line run BuildLinuxAll.sh to create release and debug versions of HelloWorld