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TodoApp iOS: An iOS Sample App

This xcode project wraps the Desktop Sample App to run on an iPhone.

How to build & run

  1. Install xcode from the app store.

  2. Install brew, git, carthage, npm

    brew install carthage git [email protected] npm

  3. Install Erlang-OTP (with openssl) in the same version 25.0.4 as the bundled runtime edition:

    asdf install erlang 25.0.4
asdf install elixir 1.13.4-otp-25

    If above fails for you on an older mac or can't seem to find openssl you can try this custom build command as well:

    export DED_LDFLAGS_CONFTEST="-bundle"
export KERL_CONFIGURE_OPTIONS="--without-javac --with-ssl=$(brew --prefix [email protected])"
asdf install erlang 25.0.4
asdf install elixir 1.13.4-otp-25

  4. fork / git clone this project to your local disk:

    git clone https://github.com/elixir-desktop/ios-example-app.git

  5. Build the dependencies:

    cd ios-example-app && carthage update --use-xcframeworks

  6. Open the ios-example-app project with xcode

  7. Start the App

Known todos

Menus and other integration not yet available

This sample only launch the elixir app and shows it in a WKWebView. There is no integration yet with the iOS Clipboard, sharing or other OS capabilities. They can though easily be added to the Bridge.swift file when needed.

Other notes

  • The Erlang runtime is for ease of use embedded in this example git repository. The native runtimes for M1 and iPhoneOS and the exqlite nif are are generated using the Desktop Runtime repository.

  • iOS specific settings, icons and metadata are all contained in this xcode wrapper project.

  • Bridge.swift and the native library are doing most of the wrapping of the Elixir runtime.

Screenshots

App

Architecture

App

The iOS App is initializing the Erlang VM and starting it up with a new environment variable BRIDGE_PORT. This environment variable is used by the Bridge Elixir project to connect to a local TCP server inside the iOS app. Through this new TCP communication channel all calls that usually would go to wxWidgets are now redirected. The iOS side of things implements handling in Bridge.swift.