WidgetUtil class

Widget Util.

Constructors

WidgetUtil()

Properties

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

asyncPrepare(BuildContext context, bool isOnce, ValueChanged<Rect>? onCallBack) → void

Widget rendering listener. Widget渲染监听. context: Widget context. isOnce: true,Continuous monitoring false,Listen only once. onCallBack: Widget Rect CallBack.

asyncPrepares(bool isOnce, ValueChanged<Rect>? onCallBack) → void

Widget渲染监听.

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

Static Methods

getRenderBox(BuildContext context) → RenderBox?

getWidgetBounds(BuildContext context) → Rect

get Widget Bounds (width, height, left, top, right, bottom and so on).Widgets must be rendered completely. 获取widget Rect

getWidgetLocalToGlobal(BuildContext context) → Offset

Get the coordinates of the widget on the screen.Widgets must be rendered completely. 获取widget在屏幕上的坐标,widget必须渲染完成