new FlowLayout(properties)
此布局器将子组件沿着水平或垂直方向排布并提供自动换行列的功能
Parameters:
Name | Type | Attributes | Description |
---|---|---|---|
properties |
any |
<optional> |
Extends
Methods
-
a(property, value) → {any}
-
Parameters:
Name Type Attributes Description property
any value
any <optional>
Returns:
any- Inherited From:
-
addPropertyChangeListener(listener, scope, ahead) → {void}
-
增加属性事件变化监听函数
Parameters:
Name Type Attributes Description listener
Object 监听器函数
scope
any <optional>
函数域
ahead
boolean <optional>
是否将当前监听器插入到监听器列表开头
Returns:
void- Inherited From:
-
addStyleProperty(property) → {void}
-
追加样式属性,将参数属性加入到样式属性列表中
Parameters:
Name Type Description property
string 属性名
Returns:
void- Inherited From:
-
addToDOM(dom, rect) → {void}
-
将组件加到页面的 DOM 树中;如果没有任何参数,或者只指定第一个参数并且第一个参数为 window,则组件会填满整个浏览器窗口,
并且浏览器窗口大小变化时也会自动刷新组件Parameters:
Name Type Attributes Description dom
HTMLElement <optional>
指定组件的父亲 DOM,如果为空,则加到 body 中
rect
Object <optional>
组件的范围,格式为 {x: x, y: y, width: width, height: height};如果为空,则填满父亲 DOM
Returns:
void- Inherited From:
-
addView(view, params, index) → {void}
-
将子组件加到容器中
Parameters:
Name Type Attributes Description view
ht.ui.View | ht.ui.TableRow 子组件
params
any <optional>
布局参数;可通过 childView.setLayoutPrams({...}) 提前设置并省略此参数
index
number <optional>
在子组件列表中的插入位置
Returns:
void- Inherited From:
-
addViewListener(listener, scope, ahead) → {void}
-
增加 View 事件监听器,如 invalidate(无效事件)、beginValidate 等事件
Parameters:
Name Type Attributes Description listener
Object 监听器函数
scope
any <optional>
监听器函数域
ahead
boolean <optional>
是否将当前监听器插入到监听器列表开头
Returns:
void- Inherited From:
-
adjustChildHeight(child, height) → {number}
-
布局器计算出子组件的高度,传入此函数进行验证,确保其不会大于 maxSize.height 或小于 minSize.height
返回值会被用于布局子组件Parameters:
Name Type Description child
ht.ui.View 子组件
height
number 验证之前的高度
Returns:
number -验证之后的高度
- Inherited From:
-
adjustChildWidth(child, width) → {number}
-
布局器计算出子组件的宽度,传入此函数进行验证,确保其不会大于 maxSize.width 或小于 minSize.width;
返回值会被用于布局子组件Parameters:
Name Type Description child
ht.ui.View 子组件
width
number 验证之前的宽度
Returns:
number -验证之后的宽度
- Inherited From:
-
adjustTranslateX(value) → {number}
-
调用 setTranslateX 之前调用此函数确保滚动值是合理范围内,如果滚动值不合理,将会被调整并返回
Parameters:
Name Type Description value
number 调整之前的滚动值
Returns:
number -调整后的滚动值
- Inherited From:
-
adjustTranslateY(value) → {number}
-
调用 setTranslateY 之前调用此函数确保滚动值是合理范围内,如果滚动值不合理,将会被调整并返回
Parameters:
Name Type Description value
number 调整之前的滚动值
Returns:
number -调整后的滚动值
- Inherited From:
-
checkPreferredSize(property) → {void}
-
Parameters:
Name Type Description property
string Returns:
void- Inherited From:
-
clear() → {void}
-
删除所有子组件
Returns:
void- Inherited From:
-
containsEvent(e) → {boolean}
-
判断交互事件对象位置是否在组件区域
Parameters:
Name Type Description e
UIEvent Returns:
boolean- Inherited From:
-
disableToolTip() → {void}
-
禁用工具提示,同 setToolTipEnabled
Returns:
void- Inherited From:
-
drawBackground(background, x, y, width, height, dom) → {void}
-
绘制背景
Parameters:
Name Type Attributes Description background
ht.ui.drawable.Drawable <optional>
背景 Drawable
x
number <optional>
起点 x 坐标
y
number <optional>
起点 y 坐标
width
number <optional>
宽度
height
number <optional>
高度
dom
HTMLElement <optional>
指定绘制的目标 DOM
Returns:
void- Inherited From:
-
drawBorder(border, x, y, width, height, dom) → {void}
-
绘制边框
Parameters:
Name Type Attributes Description border
ht.ui.border.Border <optional>
边框对象
x
number <optional>
起点 x 坐标
y
number <optional>
起点 y 坐标
width
number <optional>
宽度
height
number <optional>
高度
dom
HTMLElement <optional>
指定绘制的目标 DOM
Returns:
void- Inherited From:
-
enableToolTip() → {void}
-
启用工具提示,同 setToolTipEnabled
Returns:
void- Inherited From:
-
figureMaxSize() → {Object}
-
计算 maxSize,maxSize 表示组件的最大尺寸,布局器布局时会考虑此尺寸;
Returns:
Object -maxSize
- Inherited From:
-
figureMinSize() → {Object}
-
计算 minSize,minSize 表示组件的最小尺寸,布局器布局时会考虑此尺寸;
Returns:
Object -minSize
- Inherited From:
-
figurePreferredSize() → {Object}
-
计算 preferredSize,preferredSize 表示组件自身最合适的尺寸,布局器布局时会考虑此尺寸;
如果自定义组件一般需要重写此函数Returns:
Object -preferredSize
- Inherited From:
-
findViewById(id, recursive, skip) → {ht.ui.View}
-
遍历子组件列表根据 id 查找匹配的子组件
Parameters:
Name Type Attributes Description id
string | number 子组件 id
recursive
boolean <optional>
是否递归查找
skip
boolean <optional>
是否跳过 refviewgroup
- Inherited From:
-
fireViewEvent(event) → {void}
-
派发 View 事件
Parameters:
Name Type Description event
string | Object 事件对象;如果是字符串,表示事件类型,函数内自动组装一个事件对象并派发示例:view.fireViewEvent('myevent') 等同于 view.fireViewEvent({kind: 'myevent'})
Returns:
void- Inherited From:
-
fp(property, oldValue, newValue, compareFunc) → {boolean}
-
派发属性变化事件,firePropertyChange 的缩写
Parameters:
Name Type Attributes Description property
string 属性名
oldValue
any 属性变化之前的值
newValue
any 属性变化之后的值
compareFunc
Object <optional>
比较函数,用于比较新值和旧值是否一致,如果一致则不会派发事件
Returns:
boolean -事件是否派发成功
- Inherited From:
-
getAttr(property) → {any}
-
Parameters:
Name Type Description property
string Returns:
any- Inherited From:
-
getBackground() → {any}
-
获取组件的背景,可以是颜色或者图片等
Returns:
any -组件背景
- Inherited From:
-
getBackgroundDrawable() → {ht.ui.drawable.Drawable}
-
获取组件背景的 Drawable 对象
- Inherited From:
-
getBorder() → {ht.ui.border.Border}
-
获取组件的边框
- Inherited From:
-
getBorderBottom() → {number}
-
获取组件边框的底部高度
Returns:
number -组件边框底部高度
- Inherited From:
-
getBorderLeft() → {number}
-
获取组件边框的左侧宽度
Returns:
number -组件边框左侧宽度
- Inherited From:
-
getBorderRadius() → {number|Array.<number>}
-
获取 CSS 边框圆角
Returns:
number | Array.<number> -边框圆角
- Inherited From:
-
getBorderRight() → {number}
-
获取组件边框的右侧宽度
Returns:
number -组件边框右侧宽度
- Inherited From:
-
getBorderTop() → {number}
-
获取组件边框的顶部高度
Returns:
number -组件边框顶部高度
- Inherited From:
-
getBoxShadow() → {string}
-
获取 CSS 阴影值
Returns:
string -阴影值
- Inherited From:
-
getChildAt(event) → {ht.ui.View}
-
获取鼠标事件下的子组件
Parameters:
Name Type Description event
number | MouseEvent | TouchEvent | Object - Inherited From:
-
getChildLayoutParams(child) → {any}
-
获取子组件的 layoutParams
Parameters:
Name Type Description child
ht.ui.View Returns:
any -layoutParams
- Inherited From:
-
getChildren() → {ht.List}
-
获取子组件列表
- Inherited From:
-
getClassName() → {string}
-
获取类名
Returns:
string- Inherited From:
-
getColorMode() → {string}
-
Returns:
string- Inherited From:
-
getContentBottom() → {number}
-
获取内容底部距离,即底部边框高度加底部内边距高度
Returns:
number -内容底部距离
- Inherited From:
-
getContentDiv() → {HTMLElement}
-
获取内容 div;对于普通组件,contentDiv 里放置了 canvas 画布;对于容器组件,contentDiv 里除了画布,还有所有的子组件
Returns:
HTMLElement -内容 div
- Inherited From:
-
getContentHeight() → {number}
-
获取内容高度,即组件高度减去边框高度和上下内边距高度
Returns:
number -内容高度
- Inherited From:
-
getContentLeft() → {number}
-
获取内容左侧距离,即左侧边框宽度加左侧内边距宽度
Returns:
number -内容左侧距离
- Inherited From:
-
getContentPoint(event) → {Object}
-
获取内容坐标点;此坐标与内边距和边框无关,是从内容区域左上角开始计算
Parameters:
Name Type Description event
any 交互事件对象(如鼠标事件对象)
Returns:
Object -内容坐标点,包含 x、y 坐标
- Inherited From:
-
getContentRight() → {number}
-
获取内容右侧距离,即右侧边框宽度加右侧内边距宽度
Returns:
number -内容右侧距离
- Inherited From:
-
getContentTop() → {number}
-
获取内容顶部距离,即顶部边框高度加顶部内边距高度
Returns:
number -内容顶部距离
- Inherited From:
-
getContentWidth() → {number}
-
获取内容宽度,即组件宽度减去边框宽度和左右内边距宽度
Returns:
number -内容宽度
- Inherited From:
-
getContextMenu() → {ht.ui.ContextMenu}
-
获取绑定的右键菜单
- Inherited From:
-
getCursor() → {string}
-
获取鼠标样式(CSS 格式)
Returns:
string -鼠标样式
- Inherited From:
-
getDirection() → {string}
-
获取子组件布局的方向
Returns:
string -方向
-
getDisabledBackground() → {any}
-
组件被禁用时,遮罩的背景;这个值被设置到遮罩 div 的 background 样式上,因此可以使用所有 CSS 支持的 background 类型
Returns:
any -遮罩背景
- Inherited From:
-
getDOMProperties() → {any}
-
获取 DOM 属性映射表,格式为:{'width': true ...};这些属性发生变化才会更新 DOM 结构,否则只需要绘制内容即可
Returns:
any -DOM 属性映射表
- Inherited From:
-
getErrorMessage() → {string}
-
获取错误信息
Returns:
string -错误信息
- Inherited From:
-
getHeight() → {number}
-
获取组件的高度
Returns:
number -组件高度
- Inherited From:
-
getId() → {any}
-
获取唯一标识,根据标识可快速查找到组件
Returns:
any -唯一标识
- Inherited From:
-
getInteractorClasses() → {Array.<string>}
-
获取交互器类名数组
Returns:
Array.<string> -交互器类名数组
- Inherited From:
-
getLayoutParams(key) → {any}
-
获取布局参数
Parameters:
Name Type Attributes Description key
string <optional>
布局参数中的 key
Returns:
any -如果指定 key 参数返回布局参数中 key 对应的值,否则返回整个布局参数对象
- Inherited From:
-
getMargin() → {number|Array.<number>}
-
获取组件外边距,如果是数字,说明四边使用相同的外边距;如果是数组,则格式为:[上边距, 右边距, 下边距, 左边距]
Returns:
number | Array.<number> -外边距
- Inherited From:
-
getMarginBottom() → {number}
-
获取组件底部外边距高度
Returns:
number -底部外边距高度
- Inherited From:
-
getMarginRight() → {number}
-
获取组件右侧外边距宽度
Returns:
number -右侧外边距宽度
- Inherited From:
-
getMarginTop() → {number}
-
获取组件顶部外边距高度
Returns:
number -顶部外边距高度
- Inherited From:
-
getMarignLeft() → {number}
-
获取组件左侧外边距宽度
Returns:
number -左侧外边距宽度
- Inherited From:
-
getMatchedStyles() → {any}
-
获取组件匹配到的样式
Returns:
any- Inherited From:
-
getMaxSize() → {Object}
-
获取 maxSize,maxSize 表示组件自身最合适的尺寸;
如果用户没有设置,则调用 figureMaxSize 计算Returns:
Object -maxSize
- Inherited From:
-
getMaxSizeProperties() → {any}
-
获取 maxSize 属性映射表,格式为:{'border': true ...};这些属性变化会重新计算 maxSize
Returns:
any -maxSize 属性映射表
- Inherited From:
-
getMinSize() → {Object}
-
获取 minSize,minSize 表示组件的最小尺寸;
如果用户没有设置,则调用 figureMinSize 计算Returns:
Object -minSize
- Inherited From:
-
getMinSizeProperties() → {any}
-
获取 minSize 属性映射表,格式为:{'border': true ...};这些属性变化会重新计算 minSize
Returns:
any -minSize 属性映射表
- Inherited From:
-
getPadding() → {number|Array.<number>}
-
获取组件内边距,如果是数字,说明四边使用相同的内边距;如果是数组,则格式为:[上边距, 右边距, 下边距, 左边距]
Returns:
number | Array.<number> -内边距
- Inherited From:
-
getPaddingBottom() → {number}
-
获取组件底部内边距高度
Returns:
number -底部内边距高度
- Inherited From:
-
getPaddingLeft() → {number}
-
获取组件左侧内边距宽度
Returns:
number -左侧内边距宽度
- Inherited From:
-
getPaddingRight() → {number}
-
获取组件右侧内边距宽度
Returns:
number -右侧内边距宽度
- Inherited From:
-
getPaddingTop() → {number}
-
获取组件顶部内边距高度
Returns:
number -顶部内边距高度
- Inherited From:
-
getParent() → {ht.ui.ViewGroup}
-
获取父容器
- Inherited From:
-
getPopover() → {ht.ui.Popover}
-
获取弹框组件
- Inherited From:
-
getPopoverPlacements() → {Array.<string>}
-
获取弹框组件的弹出位置
Returns:
Array.<string> -弹出位置
- Inherited From:
-
getPopoverTrigger() → {string}
-
获取弹框触发器
Returns:
string -弹框触发器,值为:click|hover
- Inherited From:
-
getPreferredSize() → {Object}
-
获取 preferredSize,preferredSize 表示组件自身最合适的尺寸,布局器布局时会考虑此尺寸;
如果用户没有设置,则调用 figurePreferredSize 计算Returns:
Object -preferredSize
- Inherited From:
-
getPreferredSizeProperties() → {any}
-
获取 preferredSize 属性映射表,格式为:{'border': true ...};这些属性变化会重新计算 preferredSize
Returns:
any -preferredSize 属性映射表
- Inherited From:
-
getPropertyValue(name) → {any}
-
取组件的某个属性的原始值;
不要直接去取私有变量,例如 padding,不要直接取 _padding 私有变量,而是应该使用此函数取值;
此函数取值顺序:
先取 _padding 私有变量
如果为 undefind,再去取样式表中取值
如果为 undefied,再取 __padding 私有变量Parameters:
Name Type Description name
string 属性名
Returns:
any -属性值
- Inherited From:
Example
// 这段代码演示了覆盖 getPadding 函数,先取出旧的 padding,再 +2 并返回 button.getPadding = function() { var oldPadding = this.getPropertyValue('padding'); oldPadding += 2; return oldPadding; }
-
getRootCanvas() → {HTMLCanvasElement}
-
获取根 Canvas,这个 Canvas 用来绘制背景、边框、内容等
Returns:
HTMLCanvasElement -Canvas DOM 对象
- Inherited From:
-
getRootContext(dom, ignoreCache) → {CanvasRenderingContext2D}
-
获取默认的 canvas 画布的画笔对象,或者获取参数 DOM 对象的画笔;
此函数在绘制背景、边框和自定义组件的情况下经常使用Parameters:
Name Type Attributes Description dom
HTMLElement <optional>
指定目标 DOM,通常是个 canvas 类型的 DOM 对象
ignoreCache
boolean <optional>
Returns:
CanvasRenderingContext2D -画笔对象
- Inherited From:
-
getScrollBarActiveSize() → {number}
-
获取滚动条感应区域的大小
Returns:
number -滚动条感应区域的大小
- Inherited From:
-
getScrollBarColor() → {string}
-
获取滚动条颜色
Returns:
string -颜色值
- Inherited From:
-
getScrollBarMinLength() → {number}
-
获取滚动条最小长度
Returns:
number -滚动条最小长度
- Inherited From:
-
getScrollBarMode() → {string}
-
获取滚动条模式,支持 'on'|'off'|'auto'|'hidden'
Returns:
string -滚动条模式
- Inherited From:
-
getScrollBarSize() → {number}
-
获取滚动条大小(横向滚动条的高度,纵向滚动条的宽度)
Returns:
number -滚动条大小
- Inherited From:
-
getScrollBarTimeout() → {number}
-
获取滚动条显示时间,超过时间后滚动条将隐藏
Returns:
number -滚动条显示时间
- Inherited From:
-
getScrollRect() → {Object}
-
获取滚动范围,即内容区域
Returns:
Object -内容区域,格式为:{x: x, y: y, width: width, height: height}
- Inherited From:
-
getStyle(property) → {any}
-
Parameters:
Name Type Description property
string Returns:
any- Inherited From:
-
getStyleProperties() → {any}
-
获取样式属性映射表,格式为:{'padding': true, 'border': true ...}
Returns:
any -样式属性映射表
- Inherited From:
-
getStyleValue(property) → {any}
-
获取样式属性对应的样式值
Parameters:
Name Type Description property
string 属性名
Returns:
any -样式值
- Inherited From:
-
getToolTip(event) → {string}
-
获取工具提示文本内容
Parameters:
Name Type Attributes Description event
any <optional>
Returns:
string -工具提示文本内容
- Inherited From:
-
getTranslateX() → {number}
-
获取水平滚动值
Returns:
number -水平滚动值
- Inherited From:
-
getTranslateY() → {number}
-
获取垂直滚动值
Returns:
number -垂直滚动值
- Inherited From:
-
getView() → {HTMLElement}
-
获取组件最根层的 div
Returns:
HTMLElement -组件 div
- Inherited From:
-
getViewPoint(event) → {Object}
-
获取组件坐标点;从组件的左上角开始计算
Parameters:
Name Type Description event
any 交互事件对象(如鼠标事件对象)
Returns:
Object -组件坐标点,包含 x、y 坐标
- Inherited From:
-
getViewRect() → {Object}
-
获取视窗范围,即可视区域
Returns:
Object -可见区域,格式为:{x: x, y: y, width: width, height: height}
- Inherited From:
-
getVisibleChildren() → {ht.List}
-
获取可见的子组件列表
- Inherited From:
-
getWidth() → {number}
-
获取组件的宽度
Returns:
number -组件宽度
- Inherited From:
-
getX() → {number}
-
获取组件的 x 坐标
Returns:
number -x 坐标
- Inherited From:
-
getY() → {number}
-
获取组件的 y 坐标
Returns:
number -y 坐标
- Inherited From:
-
getZIndex() → {number}
-
获取组件的堆叠顺序
Returns:
number -堆叠顺序
- Inherited From:
-
getZoom() → {number}
-
获取缩放值
Returns:
number -缩放值
- Inherited From:
-
getZoomAnchor() → {Array.<number>}
-
获取缩放锚点
Returns:
Array.<number> -锚点数组
- Inherited From:
-
hasContentCanvas() → {boolean}
-
判断组件是否有私有 canvas
Returns:
boolean -组件是否有私有 canvas
- Inherited From:
-
hasFocus() → {boolean}
-
判断焦点是否在组件上
Returns:
boolean -焦点是否在组件上
- Inherited From:
-
hidePopover() → {void}
-
隐藏弹框组件
Returns:
void- Inherited From:
-
hideToolTip() → {void}
-
隐藏 toolTip
Returns:
void- Inherited From:
-
initView(canvas) → {void}
-
初始化组件的 DOM 结构
Parameters:
Name Type Attributes Description canvas
boolean <optional>
是否创建一个私有的 canvas 用来绘制私有内容,一般情况下在默认的 canvas 中绘制就可以,不需要此参数
Returns:
void- Inherited From:
-
invalidate(forceLayoutChildren) → {void}
-
使组件无效化
Parameters:
Name Type Attributes Description forceLayoutChildren
boolean <optional>
是否强制刷新子组件(即使子组件没有无效标记)
Returns:
void- Inherited From:
-
invalidateDOM() → {void}
-
设置重新布局 DOM 标记并调用 invalidate, 组件下次刷新时会强制更新 DOM
Returns:
void- Inherited From:
-
isCloseToHScrollBar(e) → {void}
-
事件的坐标是否接近水平滚动条(接近的范围由 scrollBarActiveSize 决定)
Parameters:
Name Type Description e
MouseEvent | TouchEvent 鼠标或 Touch 事件对象
Returns:
void- Inherited From:
-
isCloseToVScrollBar(e) → {void}
-
事件的坐标是否接近垂直滚动条(接近的范围由 scrollBarActiveSize 决定)
Parameters:
Name Type Description e
MouseEvent | TouchEvent 鼠标或 Touch 事件对象
Returns:
void- Inherited From:
-
isDescendantOf(viewGroup) → {boolean}
-
判断当前组件是否是参数容器的子孙组件
Parameters:
Name Type Description viewGroup
ht.ui.ViewGroup 容器
Returns:
boolean- Inherited From:
-
isDisabled() → {boolean}
-
组件是否被禁用
Returns:
boolean -是否被禁用
- Inherited From:
-
isFloatLayout() → {boolean}
-
Returns:
boolean- Inherited From:
-
isFocusable() → {boolean}
-
组件是否可以获取焦点
Returns:
boolean -是否可获取焦点
- Inherited From:
-
isHScrollable() → {boolean}
-
判断容器是否可以水平滚动(即 scrollRect.width > viewRect.width)
Returns:
boolean -是否可以水平滚动
- Inherited From:
-
isInDOM() → {boolean}
-
判断组件是否在 DOM 树中
Returns:
boolean -组件是否在 DOM 树中
- Inherited From:
-
isMaxSizeSet() → {boolean}
-
判断 maxSize 是否被设置(如果为 true, 组件不再调用 figureMaxSize 自动计算)
Returns:
boolean -maxSize 是否被设置
- Inherited From:
-
isMinSizeSet() → {boolean}
-
判断 minSize 是否被设置(如果为 true, 组件不再调用 figureMinSize 自动计算)
Returns:
boolean -minSize 是否被设置
- Inherited From:
-
isPreferredSizeSet() → {boolean}
-
判断 preferredSize 是否被设置(如果为 true, 组件不再调用 figurePreferredSize 自动计算)
Returns:
boolean -preferredSize 是否被设置
- Inherited From:
-
isRedrawOnFocus() → {boolean}
-
判断组件获取或失去焦点时,是否重绘自身
Returns:
boolean -是否重绘自身
- Inherited From:
-
isSelfViewEvent(event) → {boolean}
-
判断鼠标事件是否发生在组件自身上,例如容器的 div 上监听到一个原生的鼠标点击事件,此事件可能来自容器,也可能来自子组件的冒泡传播;
如果自定义组件,并且改变了组件的 DOM 结构,需要重写此函数Parameters:
Name Type Description event
any 事件对象
Returns:
boolean -事件是否发生在自身 DOM 上
- Inherited From:
-
isStyleProperty(property) → {boolean}
-
判断属性是否是样式属性
Parameters:
Name Type Description property
string 属性名
Returns:
boolean -是否是样式属性
- Inherited From:
-
isToolTipEnabled() → {boolean}
-
是否启用工具提示
Returns:
boolean -是否启用工具提示
- Inherited From:
-
isVisible() → {boolean}
-
判断组件是否可见
Returns:
boolean -组件是否可见
- Inherited From:
-
isVScrollable() → {boolean}
-
判断容器是否可以垂直滚动(即 scrollRect.height > viewRect.height)
Returns:
boolean -是否可以垂直滚动
- Inherited From:
-
iv(forceLayoutChildren) → {void}
-
使组件无效化
Parameters:
Name Type Attributes Description forceLayoutChildren
boolean <optional>
是否强制刷新子组件(即使子组件没有无效标记)
Returns:
void- Inherited From:
-
layoutChild(child, x, y, width, height) → {void}
-
布局子组件,设置组件的 x、y 坐标以及宽高并调用子组件的 validate;
如果自定义布局器,一般需要在 validateImpl 函数中调用此函数对子组件进行布局Parameters:
Name Type Description child
ht.ui.View 要布局的子组件
x
number 组件的 x 坐标
y
number 组件的 y 坐标
width
number 组件的宽度
height
number 组件的高度
Returns:
void- Inherited From:
-
layoutDOM(x, y, width, height) → {void}
-
重新调整组件的 DOM 结构布局,设置坐标、宽高以及内边距等
Parameters:
Name Type Attributes Description x
number 组件的 x 坐标
y
number <optional>
组件的 y 坐标
width
number <optional>
组件宽度
height
number <optional>
组件高度
Returns:
void- Inherited From:
-
makeDisabled(disabled, disabledDiv) → {void}
-
设置禁用组件样式,默认会将 disabedDiv 插入到组件内部
Parameters:
Name Type Description disabled
boolean 是否禁用
disabledDiv
HTMLElement 遮罩 div
Returns:
void- Inherited From:
-
mp(listener, scope, ahead) → {void}
-
增加属性事件变化监听函数,addPropertyChangeListener 的缩写
Parameters:
Name Type Attributes Description listener
Object 监听器函数
scope
any <optional>
函数域
ahead
boolean <optional>
是否将当前监听器插入到监听器列表开头
Returns:
void- Inherited From:
-
off(name, listener, scope) → {void}
-
删除事件监听
Parameters:
Name Type Attributes Description name
string 属性名,p: 开头(如 p:value),表示监听属性变化事件;d: 开头(如 d:mousedown) 表示监听原生 DOM 事件;其它情况当作 viewEvent 处理
listener
Object scope
any <optional>
监听器函数域
Returns:
void- Inherited From:
-
on(name, listener, scope, ahead) → {void}
-
增加事件监听
Parameters:
Name Type Attributes Description name
string 属性名,p: 开头(如 p:value),表示监听的是属性变化事件;d: 开头(如 d:mousedown) 表示监听原生 DOM 事件;其它情况当作 viewEvent 处理
listener
Object scope
any <optional>
监听器函数域
ahead
boolean <optional>
如果是 DOM 事件,表示 useCapture;否则表示是否将当前监听器插入到监听器列表开头
Returns:
void- Inherited From:
-
onOnce(name, listener, scope, ahead) → {void}
-
增加一次性事件监听(监听器执行一次,然后马上被删除)
Parameters:
Name Type Attributes Description name
string 属性名,p: 开头(如 p:value),表示监听属性变化事件;d: 开头(如 d:mousedown) 表示监听原生 DOM 事件;其它情况当作 viewEvent 处理
listener
Object scope
any <optional>
监听器函数域
ahead
boolean <optional>
如果是 DOM 事件,表示 useCapture;否则表示是否将当前监听器插入到监听器列表开头
Returns:
void- Inherited From:
-
onPropertyChanged(e) → {void}
-
属性变化回调
Parameters:
Name Type Description e
Object Returns:
void- Inherited From:
-
processValidate() → {void}
-
绘制组件边框、背景及调用 validateImpl;此函数在 validate 中被调用
Returns:
void- Inherited From:
-
redraw(forceLayoutChildren) → {void}
-
设置所有的重绘标记包括重绘 canvas 标记、重绘 border 标记和重新布局 DOM 标记 并调用 iv
Parameters:
Name Type Attributes Description forceLayoutChildren
boolean <optional>
是否强制刷新子组件(即使子组件没有无效标记)
Returns:
void- Inherited From:
-
removeFromDOM() → {void}
-
将组件从页面的 DOM 树中删除;如果要删除通过 addToDOM 添加到页面的组件,应使用此函数,以免内存泄漏
Returns:
void- Inherited From:
-
removePropertyChangeListener(listener, scope) → {void}
-
删除属性事件变化监听器
Parameters:
Name Type Attributes Description listener
Object 监听器函数
scope
any <optional>
函数域
Returns:
void- Inherited From:
-
removeStyleProperty(property) → {void}
-
删除样式属性,将参数属性从样式属性列表中移除
Parameters:
Name Type Description property
string 属性名
Returns:
void- Inherited From:
-
removeView(view) → {void}
-
将子组件从容器中删除
Parameters:
Name Type Description view
ht.ui.View 要删除的子组件
Returns:
void- Inherited From:
-
removeViewAt(index) → {void}
-
删除容器子组件列表中对应下标为 index 的子组件
Parameters:
Name Type Description index
number 子组件下标
Returns:
void- Inherited From:
-
removeViewListener(listener, scope) → {void}
-
删除 View 事件监听器
Parameters:
Name Type Attributes Description listener
Object 监听器函数
scope
any <optional>
监听器函数域
Returns:
void- Inherited From:
-
requestFocus() → {void}
-
请求获取焦点
Returns:
void- Inherited From:
-
resetTranslate() → {any}
-
Returns:
any- Inherited From:
-
set(properties) → {void}
-
批量设置组件属性
Parameters:
Name Type Description properties
any 格式示范:{ background: 'red', border: new ht.ui.border.LineBorder(1, 'red'), padding: 20 }
Returns:
void- Inherited From:
-
setAttr(property, value) → {void}
-
Parameters:
Name Type Description property
string value
any Returns:
void- Inherited From:
-
setBackground(background) → {void}
-
设置组件的背景,可以是颜色或者图片等;此值最终会被转换为 Drawable 对象
Parameters:
Name Type Description background
any 颜色值、图片名、图片路径、矢量对象等
Returns:
void- Inherited From:
-
setBackgroundDrawable(drawable) → {void}
-
设置组件的背景 Drawable 对象;组件渲染时优先使用此 Drawable 对象,如果为空,再用 background 转换
Parameters:
Name Type Description drawable
ht.ui.drawable.Drawable Drawable 对象
Returns:
void- Inherited From:
-
setBorder(border) → {void}
-
设置组件的边框
Parameters:
Name Type Description border
ht.ui.border.Border 组件边框
Returns:
void- Inherited From:
-
setBorderRadius(radius) → {void}
-
设置 CSS 边框圆角
Parameters:
Name Type Description radius
number | Array.<number> 边框圆角;如果是数组,则表示[左上角圆角、右上角圆角、右下角圆角、左下角圆角]
Returns:
void- Inherited From:
-
setBoxShadow(boxShadow) → {void}
-
设置 CSS 阴影值
Parameters:
Name Type Description boxShadow
string 阴影值
Returns:
void- Inherited From:
-
setChildren(children) → {void}
-
设置子组件,会覆盖容器原有子组件
Parameters:
Name Type Description children
Array.<any> 子组件集合
Returns:
void- Inherited From:
-
setColorMode(mode) → {void}
-
Parameters:
Name Type Description mode
string Returns:
void- Inherited From:
-
setContextMenu(contextMenu) → {void}
-
设置绑定的右键菜单
Parameters:
Name Type Description contextMenu
ht.ui.ContextMenu 右键菜单
Returns:
void- Inherited From:
-
setCursor(cursor) → {void}
-
设置鼠标样式(CSS 格式)
Parameters:
Name Type Description cursor
string 鼠标样式
Returns:
void- Inherited From:
-
setDirection(direction) → {void}
-
设置子组件布局的方向
Parameters:
Name Type Description direction
string 方向,值为:
leftToRight: 从左到右
rightToLeft: 从右到左
topToDown: 从上到下
bottomToUp: 从下到上Returns:
void -
setDisabled(disabled) → {void}
-
设置组件是否被禁用
Parameters:
Name Type Description disabled
string | boolean 是否被禁用;如果为字符串,组件除了被禁用,disabledDiv 还会被设置相应的 CSS 样式名
Returns:
void- Inherited From:
-
setDisabledBackground(background) → {void}
-
设置组件被禁用时,遮罩的背景;这个值被设置到遮罩 div 的 background 样式上,因此可以使用所有 CSS 支持的 background 类型
Parameters:
Name Type Description background
string 遮罩背景
Returns:
void- Inherited From:
Example
// 设置一个居中的 gif 图片 作为背景 view.setDisabledBackground('url(a.gif) no-repeat 50% 50%');
-
setErrorMessage(message, params) → {ht.ui.Popover}
-
设置错误信息
Parameters:
Name Type Description message
string 错误信息
params
any ErrorMessagePopover 组件的属性配置,如 { placements: ['top'] } 将错误提示显示在上方
- Inherited From:
-
setFloatLayout(floatLayout) → {void}
-
Parameters:
Name Type Description floatLayout
boolean Returns:
void- Inherited From:
-
setFocusable(focusable) → {void}
-
设置组件是否可以获取焦点
Parameters:
Name Type Description focusable
boolean 是否可获取焦点
Returns:
void- Inherited From:
-
setFormDataName(name) → {any}
-
Parameters:
Name Type Description name
string Returns:
any- Inherited From:
-
setHeight(height) → {void}
-
设置组件的高度
Parameters:
Name Type Description height
number 组件高度
Returns:
void- Inherited From:
-
setId(id) → {void}
-
设置唯一标识,根据标识可快速查找到组件
Parameters:
Name Type Description id
string | number 唯一标识
Returns:
void- Inherited From:
-
setLayoutParams(layoutParams, value) → {void}
-
设置布局参数;这个函数有两种使用方式:
view.setLayoutParams({ marginLeft: 20, marginRight: 20 }) 指定布局参数对象
view.setLayoutParams('marginLeft', 20) 传入两个参数设置布局参数对象中的属性Parameters:
Name Type Attributes Description layoutParams
any <optional>
布局参数对象或 key
value
any <optional>
布局参数值
Returns:
void- Inherited From:
-
setLoading(arg0) → {void}
-
Parameters:
Name Type Description arg0
boolean Returns:
void- Inherited From:
-
setMargin(margin) → {void}
-
设置组件外边距,如果是数字,说明四边使用相同的外边距;如果是数组,则格式为:[上边距, 右边距, 下边距, 左边距]
Parameters:
Name Type Description margin
number | Array.<number> 外边距;父容器布局时,会动态将此参数填充到 layoutParams 中(优先级低于 layoutParams,如果 layoutParams 参数中没有指定相应的 margin 才会从组件上取值)
Returns:
void- Inherited From:
-
setMaxSize(width, height) → {void}
-
Parameters:
Name Type Attributes Description width
number <optional>
height
number <optional>
Returns:
void- Inherited From:
-
setMemoryValidate(validate) → {void}
-
Parameters:
Name Type Description validate
boolean Returns:
void- Inherited From:
-
setMinSize(width, height) → {void}
-
Parameters:
Name Type Attributes Description width
number <optional>
height
number <optional>
Returns:
void- Inherited From:
-
setOverflow(value) → {void}
-
Parameters:
Name Type Description value
"auto" | "clip" | "hidden" | "visible" | "scroll" Returns:
void- Inherited From:
-
setPadding(padding) → {void}
-
设置组件内边距,如果是数字,说明四边使用相同的内边距;如果是数组,则格式为:[上边距, 右边距, 下边距, 左边距]
Parameters:
Name Type Description padding
number | Array.<Number> 内边距
Returns:
void- Inherited From:
-
setPopover(popover, trigger) → {void}
-
设置弹框组件
Parameters:
Name Type Attributes Description popover
string | ht.ui.Popover 弹框组件,如果参数是字符串,则用这段文本作为弹框内容(内部自动创建 Popover 和 HtmlView 组件)
trigger
string <optional>
触发器,值为:click|hover
Returns:
void- Inherited From:
-
setPopoverPlacements(placements) → {void}
-
设置弹框组件的弹出位置
Parameters:
Name Type Description placements
Array.<string> 位置数组
Returns:
void- Inherited From:
-
setPopoverTrigger(trigger) → {void}
-
设置弹框触发器
Parameters:
Name Type Description trigger
string 弹框触发器,值为:click|hover
Returns:
void- Inherited From:
-
setPreferredSize(width, height) → {void}
-
设置 preferredSize,preferredSize 表示组件自身最合适的尺寸,布局器布局时会考虑此尺寸作为布局尺寸;
如果设置过 preferredSize,就不会再调用 figurePreferredSize 计算;
如果要清空设置过的 preferredSize,可以调用 setPreferredSize(undefined, undefined);Parameters:
Name Type Attributes Description width
number | Size2d <optional>
首选宽度
height
number <optional>
首选高度
Returns:
void- Inherited From:
-
setPropertyValue(name, value) → {void}
-
设置属性值并派发事件,自定义 set 函数内部应该调用此函数设值
Parameters:
Name Type Description name
string 属性名
value
any 属性值
Returns:
void- Inherited From:
-
setRedrawOnFocus(redrawOnFocus) → {void}
-
设置组件获取或失去焦点时,是否重绘自身
Parameters:
Name Type Description redrawOnFocus
boolean 是否重绘自身
Returns:
void- Inherited From:
-
setScrollBarActiveSize(activeSize) → {void}
-
设置滚动条感应区域的大小
Parameters:
Name Type Description activeSize
number 滚动条感应区域的大小
Returns:
void- Inherited From:
-
setScrollBarColor(color) → {void}
-
设置滚动条颜色
Parameters:
Name Type Description color
string 颜色值
Returns:
void- Inherited From:
-
setScrollBarMinLength(length) → {void}
-
设置滚动条最小长度
Parameters:
Name Type Description length
number 滚动条最小长度
Returns:
void- Inherited From:
-
setScrollBarMode(mode) → {void}
-
设置滚动条模式
Parameters:
Name Type Description mode
string 滚动条模式,可选值为:'on'|'off'|'auto'|'hidden'
Returns:
void- Inherited From:
-
setScrollBarSize(size) → {void}
-
设置滚动条大小(横向滚动条的高度,纵向滚动条的宽度)
Parameters:
Name Type Description size
number 滚动条大小
Returns:
void- Inherited From:
-
setScrollBarTimeout(timeout) → {void}
-
设置滚动条显示时间,超过时间后滚动条将隐藏
Parameters:
Name Type Description timeout
number 滚动条显示时间
Returns:
void- Inherited From:
-
setStyle(property, value) → {void}
-
Parameters:
Name Type Description property
string value
any Returns:
void- Inherited From:
-
setToolTipEnabled(enabled) → {void}
-
设置是否启用工具提示
Parameters:
Name Type Description enabled
boolean 是否启用工具提示
Returns:
void- Inherited From:
-
setToolTipPlacements(placements) → {any}
-
Parameters:
Name Type Description placements
Array.<string> Returns:
any- Inherited From:
-
setTranslate(translateX, translateY, anim) → {void}
-
设置水平和垂直滚动值
Parameters:
Name Type Attributes Description translateX
number 水平滚动值
translateY
number <optional>
垂直滚动值
anim
boolean <optional>
是否使用动画
Returns:
void- Inherited From:
-
setTranslateX(translateX) → {void}
-
设置水平滚动值
Parameters:
Name Type Description translateX
number 水平滚动值
Returns:
void- Inherited From:
-
setTranslateY(translateY) → {void}
-
设置垂直滚动值
Parameters:
Name Type Description translateY
number 垂直滚动值
Returns:
void- Inherited From:
-
setVisible(visible) → {void}
-
设置组件是否可见
Parameters:
Name Type Description visible
boolean 组件是否可见
Returns:
void- Inherited From:
-
setWidth(width) → {void}
-
设置组件的宽度
Parameters:
Name Type Description width
number 组件宽度
Returns:
void- Inherited From:
-
setX(x) → {void}
-
设置组件的 x 坐标
Parameters:
Name Type Description x
number x 坐标
Returns:
void- Inherited From:
-
setY(y) → {void}
-
设置组件的 y 坐标
Parameters:
Name Type Description y
number y 坐标
Returns:
void- Inherited From:
-
setZIndex(zIndex) → {void}
-
设置组件的堆叠顺序
Parameters:
Name Type Description zIndex
number 堆叠顺序
Returns:
void- Inherited From:
-
setZoom(zoom) → {void}
-
设置缩放
Parameters:
Name Type Description zoom
number 缩放值
Returns:
void- Inherited From:
-
setZoomAnchor(anchor) → {void}
-
设置缩放锚点
Parameters:
Name Type Description anchor
Array.<number> 横向和纵向锚点数组,如右上角为:[1, 0]
Returns:
void- Inherited From:
-
showHScrollBar() → {void}
-
显示水平滚动条
Returns:
void- Inherited From:
-
showPopover() → {void}
-
显示弹框组件
Returns:
void- Inherited From:
-
showScrollBar() → {void}
-
显示滚动条,内部会调用 showVScrollBar() 和 showHScrollBar()
Returns:
void- Inherited From:
-
showToolTip(moveEvent) → {void}
-
显示 toolTip
Parameters:
Name Type Description moveEvent
MouseEvent | TouchEvent 鼠标事件对象
Returns:
void- Inherited From:
-
showVScrollBar() → {void}
-
显示垂直滚动条
Returns:
void- Inherited From:
-
tearDownBorder(border, x, y, width, height, dom) → {void}
-
卸载边框;只有 CSS 类型的边框才需要此函数
Parameters:
Name Type Attributes Description border
ht.ui.border.Border <optional>
边框对象
x
number <optional>
起点 x 坐标
y
number <optional>
起点 y 坐标
width
number <optional>
宽度
height
number <optional>
高度
dom
HTMLElement <optional>
指定绘制的目标 DOM
Returns:
void- Inherited From:
-
translate(x, y, anim) → {void}
-
水平滚动值增加 x,垂直滚动值增加 y
Parameters:
Name Type Attributes Description x
number 水平滚动值增量
y
number <optional>
垂直滚动值增量
anim
boolean <optional>
是否使用动画
Returns:
void- Inherited From:
-
tx(value) → {number|void}
-
获取或设置水平滚动值
Parameters:
Name Type Attributes Description value
number <optional>
如果为空,相当于 getTranslateX();如果不为空,相当于 setTranslateX(value)
Returns:
number | void- Inherited From:
-
ty(value) → {number|void}
-
获取或设置垂直滚动值
Parameters:
Name Type Attributes Description value
number <optional>
如果为空,相当于 getTranslateY();如果不为空,相当于 setTranslateY(value)
Returns:
number | void- Inherited From:
-
ump(listener, scope) → {void}
-
删除属性事件变化监听器,removePropertyChangeListener 的缩写
Parameters:
Name Type Attributes Description listener
Object 监听器函数
scope
any <optional>
函数域
Returns:
void- Inherited From:
-
updateScrollBar(width, height, scrollWidth, scrollHeight) → {void}
-
更新滚动条;如果布局器需要滚动条,应该在 validateImpl 函数的末尾调用此函数更新滚动条
Parameters:
Name Type Description width
number 组件布局宽度
height
number 组件布局高度
scrollWidth
number 组件内容宽度
scrollHeight
number 组件内容高度
Returns:
void- Inherited From:
-
validate() → {void}
-
重绘组件;此函数负责重新布局组件 DOM、设置层叠关系、加载需要的图片资源、派发 validate 事件等
如果自定义组件,不要重写此函数,而是重写 validateImpl 函数Returns:
void- Inherited From:
-
validateImpl(x, y, width, height) → {void}
-
绘制组件内容;如果自定义组件,一般要重写此函数,通过 getRootContext() 获取画笔然后绘制
Parameters:
Name Type Attributes Description x
number <optional>
内容范围的 x 坐标
y
number <optional>
内容范围的 y 坐标
width
number <optional>
内容范围宽度
height
number <optional>
内容范围高度
Returns:
void- Inherited From: