PeerKit

An open-source Swift framework for building event-driven, zero-config Multipeer Connectivity apps

##Qiulang's modification:

Maintain a MCSessionState in Session, only stopAdvertising when connected. Because <1> when you accept invitation there is no guarantee you will be connected. In fact I find it is quite often Session goes from .connecting to .notConnected without .connected. <2> When 2 peers first connected then disconnected they can't reconnect again because they have called stopAdvertising.
Re-implement sendResourceAtURL, add startReceivingResource, ResourceProgressBlock because it is my main use case, e.g. sending picture from UIImagePickerController
Remove SessionDelegate from Session, access Transceiver directly. I don't think many people will implement SessionDelegate, after all we provide public block in PeerKit and I assume most PeerKit's users will use those blocks instead of implementing SessionDelegate.

So to try my fork, pod 'PeerKit', :git => 'https://github.com/qiulang/PeerKit.git'

Usage

//Qiulang, my use case will focuse on sending image from
//UIImagePickerController, the original implementation 
//failed to do it right. It focused more on sending message.

public func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    defer {
         dismiss(animated: true, completion:nil)
    }
        
    func send(_ url:URL) {
         let progresses = PeerKit.sendResourceAtURL(url, resourceName: "send", info:info, completionHandler:{
         ...

License

This project is under the MIT license.