NormalButton class

通用按钮，支持用户设置背景色、是否可用等属性 若BigMainButton、SmallMainButton、BigOutlineButton不能满足用户需要 可以直接使用该按钮

isEnable如果设置为false，那么按钮呈现灰色态，点击事件不响应

默认使用Text文本组件，如果用户想要显示其他组件。比如图片等，可以设置child属性

文本组件需要的样式属性，可以通过textStyle设置，也可以通过fontSize等单独设置

该组件的布局规则参考Container的布局规则 该组件的alignment的属性默认为null,即使父布局给的约束是无边界(最大宽度或者最大高度是double.infinity.) 组件的尺寸也会和child一样大。 那就是说：不给alignment属性设置值，即使把BrnNormalButton,放到column、ListView中， 他也会尽可能的小。如果设置了constraints属性，那么就会按着constraints布局。

案例一

NormalButton(
   text: '主案特别长',
   onTap: () {
        Toast.show('点击了主按钮', context);
   },
)

按钮的大小就是text的大小+内边距的大小

案例二

NormalButton(
   constraints: BoxConstraints.expand(height: 60),
   text: '主案特别长',
   onTap: () {
        Toast.show('点击了主按钮', context);
   },
)

按钮的大小：宽度充满父布局、高度是60

如果给该组件的alignment赋值了，父布局的约束是有边界。 该组件的尺寸就是父布局的约束， 并且会按着alignment属性来摆放text或者child,比如居中摆放等.

案例一

NormalButton(
   alignment: Alignment.center,
   text: '主案特别长',
   onTap: () {
        Toast.show('点击了主按钮', context);
   },
)

按钮的大小：宽度充满父布局 文字居中摆放

• BigMainButton, 大主色调按钮
• BigOutlineButton, 大边框按钮
• SmallMainButton, 小主色调按钮
• SmallOutlineButton, 小边框按钮

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• NormalButton

Constructors

NormalButton({Key? key, required String text, Color backgroundColor = _BBackgroundColor, bool isEnable = true, VoidCallback? onTap, EdgeInsetsGeometry insertPadding = const EdgeInsets.symmetric(vertical: ButtonConstant.verticalPadding, horizontal: ButtonConstant.horizontalPadding), Decoration? decoration, Widget? child, TextStyle? textStyle, FontWeight fontWeight = _BFontWeight, double fontSize = _BFontSize, Color textColor = _BTextColor, Color? disableTextColor, Color disableBackgroundColor = _BDisableBackgroundColor, BoxConstraints constraints = const BoxConstraints.tightFor(), BorderRadiusGeometry borderRadius = const BorderRadius.all(Radius.circular(_BRadius)), Alignment? alignment})

const

NormalButton.outline({Key? key, Color? disableLineColor, Color? lineColor, double radius = 6, double borderWith = 1.0, required String text, bool isEnable = true, Color backgroundColor = _BBackgroundColor, Color disableBackgroundColor = _BDisableBackgroundColor, Alignment? alignment, Widget? child, VoidCallback? onTap, Color textColor = _BTextColor, FontWeight fontWeight = _BFontWeight, double fontSize = _BFontSize, Color? disableTextColor, EdgeInsetsGeometry insertPadding = const EdgeInsets.symmetric(vertical: ButtonConstant.verticalPadding, horizontal: ButtonConstant.horizontalPadding), TextStyle? textStyle, BoxConstraints constraints = const BoxConstraints.tightFor(), BorderRadiusGeometry borderRadius = const BorderRadius.all(Radius.circular(_BRadius))})

Properties

alignment → Alignment?

按钮的内部对齐 默认为null

final

backgroundColor → Color

按钮背景色 默认_BBackgroundColor

final

borderRadius → BorderRadiusGeometry

按钮圆角大小

final

child → Widget?

按钮的显示子节点 优先级高于text

final

constraints → BoxConstraints

按钮的布局约束 默认是自适应大小

final

decoration → Decoration?

按钮的修饰 默认实色背景

final

disableBackgroundColor → Color

按钮不可用背景色 默认_BDisableBackgroundColor

final

disableTextColor → Color?

按钮不可用的文字颜色

final

fontSize → double

按钮的文字大小 默认_BFontSize

final

fontWeight → FontWeight

按钮的文本Weight 默认是FontWeight.bold

final

hashCode → int

The hash code for this object.

no setter, inherited

insertPadding → EdgeInsetsGeometry

按钮内边距 默认水平_BHorizontalPadding 垂直_BVerticalPadding

final

isEnable → bool

按钮是否可用 默认是true

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

onTap → VoidCallback?

按钮点击的回调

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

text → String

按钮显示的文案

final

textColor → Color

按钮的文字颜色 默认白色_BTextColor

final

textStyle → TextStyle?

按钮的文本显示样式 优先级高于textColor等属性

final

Methods

build(BuildContext context) → Widget

Describes the part of the user interface represented by this widget.

override

createElement() → StatelessElement

Creates a StatelessElement to manage this widget's location in the tree.

inherited

debugDescribeChildren() → List<DiagnosticsNode>

Returns a list of DiagnosticsNode objects describing this node's children.

inherited

debugFillProperties(DiagnosticPropertiesBuilder properties) → void

Add additional properties associated with the node.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode

Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.

inherited

toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String

A string representation of this object.

inherited

toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a string representation of this node and its descendants.

inherited

toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a one-line detailed description of the object.

inherited

toStringShort() → String

A short, textual description of this widget.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited