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Add managed UIKit iOS client
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Talon
2026-09-19 15:43:37 +02:00
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clients/apple/dotnet/README.md
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# Managed Apple clients
`VoiceCat.Mac` is the native AppKit C# port. It targets `net10.0-macos27.0` and references the same `VoiceCat.Core` and `VoiceCat.Audio` assemblies used by the Windows client and managed CLI. The explicit platform version selects Microsoft's Xcode 27 preview bindings; the deployed app still supports macOS 14 and later.
`VoiceCat.Mac` and `VoiceCat.iOS` are the native AppKit and UIKit C# clients. They target the .NET 10 Apple workloads and reference the same `VoiceCat.Core` and `VoiceCat.Audio` assemblies used by Windows and the managed CLI. UIKit was selected over MAUI to retain direct AVAudioSession/AVAudioEngine lifecycle control and native VoiceOver behavior without another UI abstraction.
The managed client now implements the Swift client's functional surface: profiles and Keychain authentication, TOFU, protected channels, hierarchical channel presentation and roster state, channel and modeless private text, microphone/auxiliary/screen-audio streams, selectable Core Audio devices, VAD/PTT/always-on input, stereo microphone, RNNoise, per-stream receive tuning, self/server mute and deafen, full channel configuration, moderation, permissions, account administration, event sounds and speech. It imports the legacy Swift profile, TOFU and Keychain state during cutover. Capture is converted to interleaved 48 kHz int16 PCM through `AVAudioConverter`; playback converts the shared bounded `PcmRing` into Core Audio's native planar Float32 layout inside an allocation-free, non-blocking `AVAudioSourceNode` callback.
@@ -19,4 +19,13 @@ dotnet build clients/apple/dotnet/VoiceCat.Apple.slnx -c Debug
open clients/apple/dotnet/VoiceCat.Mac/bin/Debug/net10.0-macos27.0/osx-arm64/VoiceCat.app
```
The iOS build first stages static device and simulator Opus/RNNoise archives, then builds the UIKit host. MSBuild also builds and embeds the existing Swift ReplayKit upload extension; that deliberately remains Swift because of the extension's tight memory budget and unsupported managed extension runtime.
```bash
./dotnet/build-native-ios.sh
dotnet build clients/apple/dotnet/VoiceCat.iOS/VoiceCat.iOS.csproj -c Debug -r iossimulator-arm64
```
Profiles, TOFU state, passwords and the ReplayKit ring use the signed App Group `group.me.iamtalon.voicecat`; the managed client migrates the old app-private profile files on first use. The shared ring ABI is frozen in [`docs/broadcast-ring-format.md`](../../../docs/broadcast-ring-format.md).
The native build stages an `osx-arm64` `libvoicecat_media.dylib`; that shim contains only Opus/RNNoise. Debug builds deliberately omit hardened runtime so an ad-hoc-signed local app can load the separately ad-hoc-signed .NET runtime libraries without an Apple Development identity. Release builds retain hardened runtime for Developer ID signing and notarization. Only a macOS host can link, launch, grant microphone access and verify live devices. Final audio quality is validated with real multi-human calls after the feature surface is complete; a synthetic ten-minute sine-wave listen is deliberately not a release gate.