From afbad72429a5d8ef08c5b0298339561b43544f88 Mon Sep 17 00:00:00 2001 From: qianqiuhong Date: Fri, 10 May 2024 17:02:46 +0800 Subject: [PATCH] =?UTF-8?q?fixed=206b6df18=20from=20https://gitee.com/qian?= =?UTF-8?q?-qiuhong/docs/pulls/44404=20AttributeUpdater=E6=96=87=E6=A1=A3?= =?UTF-8?q?=E6=9B=B4=E6=96=B0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: qianqiuhong --- .../reference/apis-arkui/Readme-CN.md | 2 +- .../arkui-ts/figures/attribute-updater1.PNG | Bin 4694 -> 0 bytes .../arkui-ts/figures/attribute-updater2.gif | Bin 13509 -> 0 bytes ...versal-attributes-attribute-updater-sys.md | 126 ----------- .../apis-arkui/figures/attribute-updater1.PNG | Bin 0 -> 9442 bytes .../apis-arkui/figures/attribute-updater2.gif | Bin 0 -> 18199 bytes .../apis-arkui/figures/attribute-updater3.gif | Bin 0 -> 6966 bytes .../js-apis-arkui-AttributeUpdater.md | 206 ++++++++++++++++++ 8 files changed, 207 insertions(+), 127 deletions(-) delete mode 100644 zh-cn/application-dev/reference/apis-arkui/arkui-ts/figures/attribute-updater1.PNG delete mode 100644 zh-cn/application-dev/reference/apis-arkui/arkui-ts/figures/attribute-updater2.gif delete mode 100644 zh-cn/application-dev/reference/apis-arkui/arkui-ts/ts-universal-attributes-attribute-updater-sys.md create mode 100644 zh-cn/application-dev/reference/apis-arkui/figures/attribute-updater1.PNG create mode 100644 zh-cn/application-dev/reference/apis-arkui/figures/attribute-updater2.gif create mode 100644 zh-cn/application-dev/reference/apis-arkui/figures/attribute-updater3.gif create mode 100644 zh-cn/application-dev/reference/apis-arkui/js-apis-arkui-AttributeUpdater.md diff --git a/zh-cn/application-dev/reference/apis-arkui/Readme-CN.md b/zh-cn/application-dev/reference/apis-arkui/Readme-CN.md index 49d26a62ce2..fd2d4c918ff 100644 --- a/zh-cn/application-dev/reference/apis-arkui/Readme-CN.md +++ b/zh-cn/application-dev/reference/apis-arkui/Readme-CN.md @@ -38,6 +38,7 @@ - [NodeController](js-apis-arkui-nodeController.md) - [RenderNode](js-apis-arkui-renderNode.md) - [XComponentNode](js-apis-arkui-xcomponentNode.md) + - [AttributeUpdater](js-apis-arkui-AttributeUpdater.md) - 图形图像 - [@ohos.display (屏幕属性)](js-apis-display.md) - [@ohos.PiPWindow (画中画窗口)](js-apis-pipWindow.md) @@ -122,7 +123,6 @@ - [事件独占控制](arkui-ts/ts-universal-attributes-monopolize-events.md) - [鼠标光标控制](arkui-ts/ts-universal-attributes-cursor.md) - [特效绘制合并](arkui-ts/ts-universal-attributes-use-effect.md) - - [属性直通更新 (系统接口)](arkui-ts/ts-universal-attributes-attribute-updater-sys.md) - 手势处理 - [绑定手势方法](arkui-ts/ts-gesture-settings.md) - 基础手势 diff --git a/zh-cn/application-dev/reference/apis-arkui/arkui-ts/figures/attribute-updater1.PNG b/zh-cn/application-dev/reference/apis-arkui/arkui-ts/figures/attribute-updater1.PNG deleted file mode 100644 index 572a83bd45b2039e30ffbde12427db63be8870b6..0000000000000000000000000000000000000000 GIT binary patch literal 0 HcmV?d00001 literal 4694 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initializeModifier -initializeModifier(instance: T): void - -AttributeUpdater首次设置给组件时提供的样式。 - - -**参数:** - -| 参数 | 描述 | -| -------------------- | ------------------------------------------------------------ | -| instance |组件的属性类,用来标识进行属性设置的组件的类型,比如Button组件的ButtonAttribute,Text组件的TextAttribute等。| - - -### attribute -get attribute(): T | undefined - -获取AttributeUpdater中组件对应的属性类实例,通过该实例实现属性直通更新的功能。 - -**返回值:** - -| 类型 | 描述 | -| -------------------- | ------------------------------------------------------------ | -| T \| undefined |如果AttributeUpdater中组件的属性类实例存在,则返回对应组件的属性类实例,否则返回undefined。| - -> **使用说明:** -> -> 1. 由于与属性方法同时设置或者在AttributeUpdater中实现applyNormalAttribute等方法时,涉及到与状态管理更新机制同时使用,易出现混淆,因此不建议在同一组件上同时用两种方法设置相同属性。 -> -> 2. 当与属性方法同时设置时,属性生效的原则为:后设置的生效。 -> 若先进行属性直通更新,后通过状态管理机制更新属性方法,则后更新的属性方法生效; -> 若先通过状态管理机制更新属性方法,后进行属性直通更新,则属性直通更新生效。 -> -> 3. 一个AttributeUpdater对象只能同时关联一个组件,否则将出现设置的属性只在一个组件上生效的现象。 -> - -## 示例 - -### 示例1 - -通过initializeModifier方法初始化设置属性值。 - -```ts -// xxx.ets -import { AttributeUpdater } from '@ohos.arkui.modifier' - -class MyButtonModifier extends AttributeUpdater { - initializeModifier(instance: ButtonAttribute): void { - instance.backgroundColor(Color.Red) - .width('50%') - .height(30) - } -} - -@Entry -@Component -struct updaterDemo1 { - modifier: MyButtonModifier = new MyButtonModifier() - - build() { - Row() { - Column() { - Button("Button") - .attributeModifier(this.modifier) - } - .width('100%') - } - .height('100%') - } -} -``` -![attributeUpdater1](figures/attribute-updater1.PNG) - - -### 示例2 - -通过属性直通设置方式更新属性值。 - -```ts -// xxx.ets -import { AttributeUpdater } from '@ohos.arkui.modifier' - -class MyButtonModifier extends AttributeUpdater { - initializeModifier(instance: ButtonAttribute): void { - instance.backgroundColor(Color.Red) - .width('50%') - .height(30) - } -} - -@Entry -@Component -struct updaterDemo2 { - modifier: MyButtonModifier = new MyButtonModifier() - - build() { - Row() { - Column() { - Button("Button") - .attributeModifier(this.modifier) - .onClick(() => { - this.modifier.attribute?.backgroundColor(Color.Green).width('30%') - }) - } - .width('100%') - } - .height('100%') - } -} -``` -![attributeUpdater2](figures/attribute-updater2.gif) diff --git a/zh-cn/application-dev/reference/apis-arkui/figures/attribute-updater1.PNG b/zh-cn/application-dev/reference/apis-arkui/figures/attribute-updater1.PNG new file mode 100644 index 0000000000000000000000000000000000000000..72ee0d911da4f0c65e195ef4eb7faadb3d7a1aeb GIT binary patch literal 9442 zcmeHtS5yKLoU>=tkb zZuEK-K}ksX1GLqjz7Dk7$~=W}PNc7`>8Ek8Zfv}h2glb0_ePUYk2u|Q8q;3)-5=Qq zY7`pJEF4eYpq5GJXOyf6k)MSLxK3L0@bdG2PIwe`50yaQQww#esM$dZ==9v%b$4kX zhOM1vjn$z0KDpfolg}fvr|Mo8{&b%;@@rWO)z9?#tNMhBHza~ghiZ|7AEZV#&(nTa z?Sz6l<#va>7Aop?%hL#fs9pNI0NyB%kJi+@A(8)U`u|%5qMcYuey3UXotT-wNDR$7 zzg7puy%gk-N9+mUXR05W4E10#xYIP-Z43DI4%)DcKpY9w=uk{ftb&UB-eW8;;TPF7d5x`7jm(wn$$5F zDYOgizH>p$Hd&`?pa7HsTXYIT~dW{X!dt`};d)o-38r-(UhTo+ytj^~50i@qy>%6xUYMcu3R#4OI)y{yOuvE(rO 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b/zh-cn/application-dev/reference/apis-arkui/js-apis-arkui-AttributeUpdater.md new file mode 100644 index 00000000000..67e9b6f5f22 --- /dev/null +++ b/zh-cn/application-dev/reference/apis-arkui/js-apis-arkui-AttributeUpdater.md @@ -0,0 +1,206 @@ +# AttributeUpdater + +将属性直接设置给组件,无需标记为状态变量即可直接触发UI更新。 + +> **说明:** +> +> 从API Version 12开始支持。后续版本如有新增内容,则采用上角标单独标记该内容的起始版本。 +> + + +## 导入模块 + +```ts +import { AttributeUpdater } from '@ohos.arkui.modifier' +``` + +> **使用说明:** +> +> 1. 由于与属性方法同时设置或者在AttributeUpdater中实现applyNormalAttribute等方法时,涉及到与状态管理更新机制同时使用,易出现混淆,因此不建议在同一组件上同时用两种方法设置相同属性。 +> +> 2. 当与属性方法同时设置时,属性生效的原则为:后设置的生效。 +> 若先进行属性直通更新,后通过状态管理机制更新属性方法,则后更新的属性方法生效; +> 若先通过状态管理机制更新属性方法,后进行属性直通更新,则属性直通更新生效。 +> +> 3. 一个AttributeUpdater对象只能同时关联一个组件,否则将出现设置的属性只在一个组件上生效的现象。 +> +> 4. 开发者需要自行保障AttributeUpdater中T和C的类型匹配。比如T为ImageAttribute,C要对应为ImageInterface,否则可能导致 +> 使用updateConstructorParams时功能异常。 +> +> 5. updateConstructorParams当前只支持Image,Text和Span组件。 + +## Initializer +type Initializer\ = () => T + +可以将属性更新到本地的修饰器。 + +**系统能力:** SystemCapability.ArkUI.ArkUI.Full + +## AttributeUpdater +AttributeUpdater> + +为[AttributeModifier](arkui-ts/ts-universal-attributes-attribute-modifier.md#AttributeModifier)的实现类,开发者需要自定义class继承AttributeUpdater。 + +其中C代表组件的构造函数类型,比如Text组件的TextInterface,Image组件的ImageInterface等,需要使用updateConstructorParams时才需要传递C类型。 + +**系统能力:** SystemCapability.ArkUI.ArkUI.Full + +### applyNormalAttribute +applyNormalAttribute?(instance: T): void + +定义正常态更新属性函数。 + +**系统能力:** SystemCapability.ArkUI.ArkUI.Full + +**参数:** + +| 参数名 | 类型 | 必填 | 说明 | +| ------ | ------ | ---- | ------------------------------------------------------------------------ | +| instance | T | 是 | 组件的属性类,用来标识进行属性设置的组件的类型,比如Button组件的ButtonAttribute,Text组件的TextAttribute等。| + +### initializeModifier +initializeModifier(instance: T): void + +AttributeUpdater首次设置给组件时提供的样式。 + +**系统能力:** SystemCapability.ArkUI.ArkUI.Full + +**参数:** + +| 参数名 | 类型 | 必填 | 说明 | +| ------ | ------ | ---- | ------------------------------------------------------------------------ | +| instance | T | 是 | 组件的属性类,用来标识进行属性设置的组件的类型,比如Button组件的ButtonAttribute,Text组件的TextAttribute等。| + +**示例:** + +通过initializeModifier方法初始化设置属性值。 + +```ts +// xxx.ets +import { AttributeUpdater } from '@ohos.arkui.modifier' + +class MyButtonModifier extends AttributeUpdater { + initializeModifier(instance: ButtonAttribute): void { + instance.backgroundColor('#ff2787d9') + .width('50%') + .height(30) + } +} + +@Entry +@Component +struct updaterDemo1 { + modifier: MyButtonModifier = new MyButtonModifier() + + build() { + Row() { + Column() { + Button("Button") + .attributeModifier(this.modifier) + } + .width('100%') + } + .height('100%') + } +} +``` +![attributeUpdater1](figures/attribute-updater1.PNG) + + +### attribute +get attribute(): T | undefined + +获取AttributeUpdater中组件对应的属性类实例,通过该实例实现属性直通更新的功能。 + +**系统能力:** SystemCapability.ArkUI.ArkUI.Full + +**返回值:** + +| 类型 | 描述 | +| -------------------- | ------------------------------------------------------------ | +| T \| undefined |如果AttributeUpdater中组件的属性类实例存在,则返回对应组件的属性类实例,否则返回undefined。| + +**示例:** + +通过属性直通设置方式更新属性值。 + +```ts +// xxx.ets +import { AttributeUpdater } from '@ohos.arkui.modifier' + +class MyButtonModifier extends AttributeUpdater { + initializeModifier(instance: ButtonAttribute): void { + instance.backgroundColor('#ffd5d5d5') + .width('50%') + .height(30) + } +} + +@Entry +@Component +struct updaterDemo2 { + modifier: MyButtonModifier = new MyButtonModifier() + + build() { + Row() { + Column() { + Button("Button") + .attributeModifier(this.modifier) + .onClick(() => { + this.modifier.attribute?.backgroundColor('#ff2787d9').width('30%') + }) + } + .width('100%') + } + .height('100%') + } +} +``` +![attributeUpdater2](figures/attribute-updater2.gif) + +### updateConstructorParams +updateConstructorParams: C + +用来更改组件的构造入参。C代表组件的构造函数类型。 + +其中C代表组件的构造函数类型,比如Text组件的TextInterface,Image组件的ImageInterface等。 + +**系统能力:** SystemCapability.ArkUI.ArkUI.Full + +**示例:** + +使用updateConstructorParams更新组件构造入参。 + +```ts +// xxx.ets +import { AttributeUpdater } from '@ohos.arkui.modifier' + +class MyTextModifier extends AttributeUpdater { + initializeModifier(instance: TextAttribute) { + } +} + +@Entry +@Component +struct attributeDemo3 { + private modifier: MyTextModifier = new MyTextModifier() + + build() { + Row() { + Column() { + Text("Initialize") + .attributeModifier(this.modifier) + .fontSize(14).border({ width: 1 }).textAlign(TextAlign.Center).lineHeight(20) + .width(200).height(50) + .backgroundColor('#fff7f7f7') + .onClick(() => { + this.modifier.updateConstructorParams("Updated") + }) + } + .width('100%') + } + .height('100%') + } +} +``` +![attributeUpdater3](figures/attribute-updater3.gif) -- Gitee