Matrix SDK iOS public room

Can you someone explain me how to make upload and download mediaFiles with this SDK. Ok i read documentation but i don't understand a lot of it. I make seasion in room and what to do next, where and how to make upload with userA and download from userB. I wrote Swift 5

SwiftMatrixSDK requires Swift 5.0. Check the SwiftMatrixSDK.podspec:

s.swift_version = '5.0'

Based on this comment ...

This swift layer was brought by the community. The matrix core team runs projects in Obj-C so that maintaining this pod is not in our priorities at the moment.

... I wouldn't expect that they will be maintaining Swift 4 compatibility as well since the Swift 5 is with us for more than one year. But I can't speak for them, it's just my assumption.

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Your example is clearly a copy & paste from the README and it doesn't work even with Swift 5. The MXSession initializer is fallible and you have to use:

• guard for the let mxSession or
• mxSession?.start, mxSession?.rooms

The following code compiles fine with Swift 5:

import SwiftMatrixSDK

func doSomethingWithRooms() {
    let credentials = MXCredentials(homeServer: "http://matrix.org",
                                    userId: "@your_user_id:matrix.org",
                                    accessToken: "your_access_token")

    // Create a matrix client
    let mxRestClient = MXRestClient(credentials: credentials, unrecognizedCertificateHandler: nil)

    // Create a matrix session
    guard let mxSession = MXSession(matrixRestClient: mxRestClient) else { return }

    // Launch mxSession: it will first make an initial sync with the homeserver
    mxSession.start { response in
        guard response.isSuccess else { return }

        // mxSession is ready to be used
        // now wer can get all rooms with:
        let rooms = mxSession.rooms
    }
}

I would say that you should fill an issue (question) and ask there or switch to Swift 5.

---

The project migrated to Swift 5 in the v0.13.0 version. Check the release notes:

SwiftMatrixSDK: Migrate to Swift 5.0.

Theoretically, the previous version (v0.12.5) should work with Swift 4. Should work means that you should be able to compile it, but it will lack quite a lot of features and bug fixes, because this version was released on May 3, 2019.