130 Widgets

Building tools. Learning to build tools. Learning to build learning tools.

Building a 3D Printer Camera Viewer
for iPhone

A walkthrough for experienced programmers learning iOS networking, UIKit–SwiftUI bridging, and real-world dependency decisions from a small working app.

Swift SwiftUI UIViewRepresentable KSPlayer / FFmpeg RTSPS XcodeGen SPM

Getting Started

0

Preface & Orientation

What FredCam is, what you’ll learn, prerequisites
1

The RTSPS Problem Network

RTSP, TLS, self-signed certificates, and why standard players fail

Arc 1 — Tooling and Dependencies

2

XcodeGen and Swift Package Manager iOS

Code-first project definition with project.yml, SPM dependency resolution
3

KSPlayer — Dependencies and Licenses Arch

MIT, FFmpeg’s LGPL, what open-source licenses mean for your iOS app

Arc 2 — The App Architecture

4

Data Model and Persistent Settings iOS

ObservableObject, @Published, UserDefaults, computed URL
5

App State — The StreamState Machine Arch

Enum-driven state machines, @StateObject, @State, view lifecycle
6

Bridging UIKit and SwiftUI Arch

UIViewRepresentable, the Coordinator pattern, delegate callbacks
7

Low-Latency Streaming Options Network

KSPlayer / FFmpeg avOptions, TCP transport, nobuffer, TLS bypass

Arc 3 — iOS Platform Integration

8

Adaptive Layout, PiP, and System Permissions iOS

verticalSizeClass, stable view identity, Picture-in-Picture, Info.plist
9

Future Directions and License Considerations

Distribution concerns, LGPL on the App Store, alternatives to KSPlayer

130 Widgets

Building a 3D Printer Camera Viewerfor iPhone

Building a 3D Printer Camera Viewer
for iPhone