sf_symbols 0.4.0

sf_symbols: ^0.4.0 copied to clipboard

Adds the SF Symbols rendering modes, variable values, scale and accessibility.

• Add the hierarchical, palette and multicolor rendering modes via the SfSymbol.hierarchical, SfSymbol.palette and SfSymbol.multicolor constructors. The default constructor is unchanged and still monochrome.
• Add variableValue, for variable symbols such as wifi or speaker.wave.3 (iOS 16+).
• Add scale, mapping to UIImage.SymbolScale. The default matches what earlier versions rendered, so symbols do not resize on upgrade.
• Add semanticLabel, so symbols are no longer invisible to VoiceOver.
• Add SfSymbol.isAvailable, to check a symbol name before using it.
• Fix the widget ignoring property changes: it only ever loaded its symbol in initState, so changing name, color, weight or size did nothing. It now reloads on change, swapping textures without a blink, and skips the work when the new configuration is equivalent.
• Fix a symbol with no variant for the requested rendering mode drawing in black instead of the requested color.

Breaking: SfSymbolsPlatform.init now takes a single SfSymbolConfig instead of loose arguments. This only affects code implementing the platform interface directly; the SfSymbol widget API is unchanged.

• Support the current Flutter and iOS toolchain (Flutter 3.27+, Dart 3, Xcode 16+).
• Add Swift Package Manager support, in addition to CocoaPods.
• Add a privacy manifest (PrivacyInfo.xcprivacy).
• Raise the minimum iOS deployment target to 15.0.
• Fix symbol tinting: colors are now baked into the rendered texture with .alwaysOriginal, instead of relying on the drawing context's fill color.
• Render into a kCVPixelFormatType_32BGRA buffer, matching what the Flutter engine expects, and mark the buffer Metal-compatible for Impeller.
• Notify the engine of new frames via textureFrameAvailable, so a symbol shows up without waiting for an unrelated repaint.
• Report an UNKNOWN_SYMBOL error instead of registering an empty texture when the symbol name does not exist.
• Replace the deprecated Color.value and FontWeight.index usages.
• Move the plugin's texture registry off of static state, so multiple Flutter engines no longer share it.
• Add unit tests and iOS integration tests.

• Add documentations

• Release functions of SF symbols