Fix iOS AppHang: dispatch getNetworkInfo off main thread

[DaniloCharantola]

Problem

On iOS, both CTTelephonyNetworkInfo() and SCNetworkReachabilityGetFlags perform synchronous XPC calls to system daemons under the hood. When invoked on the main thread, they block it until the system responds — which can take hundreds of milliseconds or longer under network or system load.

This was surfacing as AppHang PROD-APP-E37G: the Flutter method channel handler was calling getNetworkInfoResult() directly on the main thread, stalling the UI.

Fix

Wrap the getNetworkInfoResult() call in DispatchQueue.global(qos: .utility).async { ... } so the XPC-backed lookups happen off the main thread. The result callback is @escaping, so it is safe to call from a background queue.

Also fixed a long-standing typo: transport_subtype for WiFi connections was returning "unknwon" instead of "unknown".

Changes

File	Description
ios/Classes/FlutterNetworkCapabilitiesPlugin.swift	Dispatch getNetworkInfoResult() to a utility background queue; fix "unknwon" → "unknown" typo
pubspec.yaml	Bump version 0.0.2 → 0.0.3
CHANGELOG.md	Add entry for 0.0.3

[Copilot]

Pull request overview

This PR addresses an iOS UI stall (AppHang) by moving synchronous, XPC-backed network info lookups off the main thread in the iOS plugin, and aligns the Dart method-channel wrapper with safer “empty map” fallbacks for null/error cases. It also bumps the package version and documents the release.

Changes:

• iOS: dispatch getNetworkInfoResult() to a background DispatchQueue to avoid blocking the main thread; fix WiFi subtype typo (unknwon → unknown).
• Dart: return an empty map when the method-channel result is null or an exception occurs; add tests for these scenarios.
• Release: bump pubspec.yaml version to 0.0.3 and add a CHANGELOG.md entry.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/flutter_network_capabilities_method_channel_test.dart	Adds unit tests for null and exception behavior from the native channel.
pubspec.yaml	Bumps package version 0.0.2 → 0.0.3.
lib/flutter_network_capabilities_method_channel.dart	Adds try/catch + null handling to return {} for failure cases.
ios/Classes/FlutterNetworkCapabilitiesPlugin.swift	Moves network info computation off the main thread; fixes "unknown" subtype typo for WiFi.
CHANGELOG.md	Documents the new 0.0.3 changes.

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