BarrageViewPainter<T extends BarrageItemBean> class

使用CustomPainter 画弹幕

Inheritance

Constructors

BarrageViewPainter({int time, List<T> data, Color textColor, Color selfTextColor, double textSize, Color backgroundColor, Color selfBackgroundColor, List<Shadow> shadow, double innerHorizontalPadding, double bgHeight, double width})

Properties

backgroundColor Color
final
bgHeight double
final
data List<T>
final
dataInScreen List<T>
read / write
hashCode int
The hash code for this object. [...]
read-only, inherited
innerHorizontalPadding double
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
selfBackgroundColor Color
final
selfTextColor Color
final
semanticsBuilder SemanticsBuilderCallback
Returns a function that builds semantic information for the picture drawn by this painter. [...]
read-only, inherited
shadow List<Shadow>
final
textColor Color
final
textSize double
final
time int
final
width double
final

Methods

addListener(VoidCallback listener) → void
Register a closure to be notified when it is time to repaint. [...]
inherited
hitTest(Offset position) bool
Called whenever a hit test is being performed on an object that is using this custom paint delegate. [...]
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
paint(Canvas canvas, Size size) → void
Called whenever the object needs to paint. The given Canvas has its coordinate space configured such that the origin is at the top left of the box. The area of the box is the size of the size argument. [...]
override
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that the object notifies when it is time to repaint. [...]
inherited
shouldRebuildSemantics(covariant CustomPainter oldDelegate) bool
Called whenever a new instance of the custom painter delegate class is provided to the RenderCustomPaint object, or any time that a new CustomPaint object is created with a new instance of the custom painter delegate class (which amounts to the same thing, because the latter is implemented in terms of the former). [...]
inherited
shouldRepaint(covariant BarrageViewPainter<BarrageItemBean> oldPainter) bool
Called whenever a new instance of the custom painter delegate class is provided to the RenderCustomPaint object, or any time that a new CustomPaint object is created with a new instance of the custom painter delegate class (which amounts to the same thing, because the latter is implemented in terms of the former). [...]
override
toString() String
Returns a string representation of this object.
inherited

Operators

operator ==(dynamic other) bool
The equality operator. [...]
inherited