ElementFilter class abstract

Base class for defining filters on widget tree nodes.

Filters are used to narrow down the set of widget tree nodes based on specific criteria.

Notable implementations:

• PredicateFilter
• ChildFilter
• WidgetTypeFilter
• ParentFilter

Implementers

• ChildFilter
• FinderFilter
• ParentFilter
• PredicateFilter
• WidgetTypeFilter

Constructors

ElementFilter()

Properties

description → String

A description to describe the filter

no setter

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

filter(Iterable<WidgetTreeNode> candidates) → Iterable<WidgetTreeNode>

Filters all candidates, retuning only a subset that matches

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited