Crossplatform iPhone / Android code sharing

Question

Simply put: What is the most effective way to share / reuse code between iPhone and Android builds?

The two most common scenarios I think would be:

1. Bla

Answer 1

You can use Scapix Language Bridge to automatically bridge C++ to Java and ObjC/Swift (among other languages). Bridge code automatically generated on the fly directly from C++ header files. Here is an example:

Define your class in C++:

#include 

class contact : public scapix::bridge::object
{
public:
    std::string name();
    void send_message(const std::string& msg, std::shared_ptr from);
    void add_tags(const std::vector& tags);
    void add_friends(std::vector> friends);
};

And call it from Swift:

class ViewController: UIViewController {
    func send(friend: Contact) {
        let c = Contact()

        contact.sendMessage("Hello", friend)
        contact.addTags(["a","b","c"])
        contact.addFriends([friend])
    }
}

And from Java:

class View {
    private contact = new Contact;

    public void send(Contact friend) {
        contact.sendMessage("Hello", friend);
        contact.addTags({"a","b","c"});
        contact.addFriends({friend});
    }
}