CapabilityGuard class

Guards against using unsupported platform features.

Create one per controller to track warned features:

final guard = CapabilityGuard(capabilities);

// In a method that uses blur:
guard.require(
  capabilities.blur,
  'Blur effect',
  'Using solid background color as fallback.',
);

Constructors

CapabilityGuard(Capabilities capabilities, {UnsupportedBehavior behavior = UnsupportedBehavior.warnOnce})

Properties

behavior → UnsupportedBehavior

How to handle unsupported features.

final

capabilities → Capabilities

The platform capabilities to check against.

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

clearWarnings() → void

Clear warned features (for testing).

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

require(bool supported, String feature, [String? fallback]) → bool

Check if a feature is supported and handle if not.

requireBlur([String? fallback]) → bool

Check blur support.

requireContentSizing([String? fallback]) → bool

Check content sizing support.

requireGlassEffect([String? fallback]) → bool

Check glass effect support.

requireGlobalHotkeys([String? fallback]) → bool

Check global hotkeys support.

requireMultiMonitor([String? fallback]) → bool

Check multi-monitor support.

requireTransform([String? fallback]) → bool

Check transform support.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited