apple_intelligence 0.1.0

Generate images on device with Apple Intelligence, streamed as they are made, plus the system Image Playground sheet. iOS and macOS.

0.1.0

Initial release: Apple Intelligence image generation for Flutter.

• ImageCreator.generate produces images on device with no UI, delivered as a Stream so the first can be shown while the rest are still being made. Cancelling the subscription cancels the work on the device.
• ImagePlaygroundSheet.present shows Apple's own generation UI and returns the file it wrote, or null if the user cancelled.
• ImageCreator.availability reports the sheet and streaming separately, because the sheet is iOS 18.1 and streaming is 18.4 — a device can offer one and not the other.
• ImageConcept.text names a subject; ImageConcept.extractedFrom asks the system to find the subjects in a passage.
• Errors arrive as a typed hierarchy — OsTooOldException, GenerationUnavailableException, GenerationRefusedException with a specific reason — never as a bare PlatformException.

Verified against real Apple Intelligence hardware: two PNGs of about 4 MB, the first at 6.8s and the second at 10.3s.

Not included: Writing Tools and Genmoji. Both are planned; Writing Tools attaches to a native text view while Flutter renders its own text, so it needs a design decision rather than a wrapper.