FlTouchData<R extends BaseTouchResponse> class
abstract
Holds data to handle touch events, and touch responses in abstract way.
There is a touch flow, explained here in a simple way, each chart's renderer captures the touch events, and passes the pointerEvent to the painter, and gets touched spot, and wraps it into a concrete BaseTouchResponse.
- Implementers
Constructors
-
FlTouchData(bool enabled, BaseTouchCallback<
R> ? touchCallback, MouseCursorResolver<R> ? mouseCursorResolver, Duration? longPressDuration) -
You can disable or enable the touch system using enabled flag,
const
Properties
- enabled → bool
-
You can disable or enable the touch system using enabled flag,
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- longPressDuration → Duration?
-
This property that allows to customize the duration of the longPress gesture.
default to 500 milliseconds refer to kLongPressTimeout.
final
-
mouseCursorResolver
→ MouseCursorResolver<
R> ? -
Using mouseCursorResolver you can change the mouse cursor
based on the provided FlTouchEvent and BaseTouchResponse
final
-
props
→ List<
Object?> -
Used for equality check, see
EquatableMixin.no setter - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- stringify → bool?
-
If set to
true, the toString method will be overridden to output this instance's props.no setterinherited -
touchCallback
→ BaseTouchCallback<
R> ? -
touchCallback notifies you about the happened touch/pointer events.
It gives you a FlTouchEvent which is the happened event such as FlPointerHoverEvent, FlTapUpEvent, ...
It also gives you a BaseTouchResponse which is the chart specific type and contains information
about the elements that has touched.
final
Methods
-
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