ViewGroup class abstract

ViewGroup

Implemented types

• ViewParent

Implementers

• CoordinateLayout

Constructors

ViewGroup({dynamic paint, dynamic zIndex})

Properties

children → List

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

addView(dynamic view, {int index = -1}) → void

========================管理子View相关方法=======================

attach(Context context, ViewParent parent) → void

changeChildToFront(dynamic child) → void

override

clearChildFocus(dynamic child) → void

override

clearChildren() → void

detach() → void

dispatchDraw(Canvas canvas) → void

drawChild(dynamic child, Canvas canvas) → bool

负责绘制单独的一个ChildView，同时负责Canvas的坐标的正确转换 如果在方法中调用了invalidate则返回true

getChildAt(int index) → dynamic

getGlobalAreaBounds() → Rect

override

hasChildView(dynamic view) → bool

measure(double parentWidth, double parentHeight) → void

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onLayout(double left, double top, double right, double bottom) → void

parentInvalidate() → void

override

removeView(dynamic view) → void

requestLayout() → void

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited