!18320 翻译完成 18192：添加generateBuildHash字段相关说明

Merge pull request !18320 from ester.zhou/TR-18192

en/application-dev/quick-start/app-configuration-file.md

 # app.json5 Configuration File
 
 
-This document gives an overview of the **app.json5** configuration file. To start with, let's go through an example of what this file contains.
+This topic gives an overview of the **app.json5** configuration file. To start with, let's go through an example of what this file contains.
 
 ```json
 {
@@ -35,7 +35,7 @@ As shown above, the **app.json5** file contains several tags.
 | Name| Description| Data Type| Initial Value Allowed|
 | -------- | -------- | -------- | -------- |
 | bundleName | Bundle name, which uniquely identifies an application.  The value must comply with the following rules:<br>- Consists of letters, digits, underscores (_), and periods (.).<br>- Starts with a letter.<br>- Contains 7 to 127 bytes.<br>You are advised to use the reverse domain name notation, for example, *com.example.demo*, where the first part is the domain suffix **com**, the second part is the vendor/individual name, and the third part is the application name, which can be of multiple levels.<br>If an application is built with the system source code, you are advised to name it in *com.ohos.demo* notation, where **ohos** signifies that the application is an OpenHarmony system application.| String| No|
-| bundleType| Bundle type, which is used to distinguish applications and atomic services.<br>- **app**: The bundle is a common application.<br>- **atomicService**: The bundle is an atomic service.<br>- **shared**: The bundle is a shared object application. | String| Yes (initial value: **"app"**)|
+| bundleType| Bundle type, which is used to distinguish applications and atomic services.<br>- **app**: The bundle is a common application.<br>- **atomicService**: The bundle is an atomic service.<br>- **shared**: The bundle is a shared object application.| String| Yes (initial value: **"app"**)|
 | debug | Whether the application can be debugged. This tag is generated during compilation and building in DevEco Studio.<br>- **true**: The application can be debugged.<br>- **false**: The application cannot be debugged.| Boolean| Yes (initial value: **false**)|
 | icon | [Icon of the application](../application-models/application-component-configuration-stage.md). The value is an icon resource index.| String| No|
 | label | [Name of the application](../application-models/application-component-configuration-stage.md). The value is a string resource index.| String| No|
@@ -49,10 +49,11 @@ As shown above, the **app.json5** file contains several tags.
 | apiReleaseType | Type of the target API version required for running the application. The value can be **"CanaryN"**, **"BetaN"**, or **"Release"**, where **N** represents a positive integer.<br>- **Canary**: indicates a restricted release.<br>- **Beta**: indicates a publicly released beta version.<br>- **Release**: indicates a publicly released official version.<br>The value is set by DevEco Studio reading the stage of the SDK in use.| String| Yes (initial value: set by DevEco Studio)|
 | multiProjects | Whether the application supports joint development of multiple projects.<br>- **true**: The application supports joint development of multiple projects.<br>- **false**: The application does not support joint development of multiple projects. For details about multi-project development, see [Multi-Project Build](https://developer.harmonyos.com/en/docs/documentation/doc-guides-V3/ohos-building-overview-0000001263360495-V3#section71471033104216).| Boolean| Yes (initial value: **false**)|
 | assanEnabled | Whether to enable AddressSanitizer (ASan) to detect memory corruption issues such as buffer overflows.<br>- **true**: ASan is enabled.<br>- **false**: ASan is disabled. Note that ASan is not available in the Release version.| Boolean| Yes (initial value: **false**)|
-| tablet | Tablet-specific configuration, which includes **minAPIVersion** and **distributedNotificationEnabled** attributes.<br>When running on tablets, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
-| tv | TV-specific configuration, which includes **minAPIVersion** and **distributedNotificationEnabled** attributes.<br>When running on TVs, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
-| wearable | Wearable-specific configuration, which includes **minAPIVersion** and **distributedNotificationEnabled** attributes.<br>When running on wearables, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
-| car | Head unit–specific configuration, which includes **minAPIVersion** and **distributedNotificationEnabled** attributes.<br>When running on head units, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
-| default | Default device–specific configuration, which includes **minAPIVersion** and **distributedNotificationEnabled** attributes.<br>When running on default devices, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
+| tablet | Tablet-specific configuration, which includes the **minAPIVersion** attribute.<br>When running on tablets, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
+| tv | TV-specific configuration, which includes the **minAPIVersion** attribute.<br>When running on TVs, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
+| wearable | Wearable-specific configuration, which includes the **minAPIVersion** attribute.<br>When running on wearables, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
+| car | Head unit–specific configuration, which includes the **minAPIVersion** attribute.<br>When running on head units, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
+| default | Default device–specific configuration, which includes the **minAPIVersion** attribute.<br>When running on default devices, the application applies the attribute settings under this tag and ignores the general counterparts.| Object| Yes (initial value: general settings in the **app.json5** file)|
 |targetBundleName|Target application name of the bundle. The value rule and range are the same as those of **bundleName**.|String|Yes (if the initial value is used, the target application is not an application with the overlay feature)|
 |targetPriority|Priority of the application. When **targetBundleName** is set, the application is an application with the overlay feature. The value ranges from 1 to 100.|Number|Yes (initial value: **1**)|
+|generateBuildHash |Whether the hash values of all HAP and HSP files of the application are generated by the packaging tool. The hash values (if any) are used to determine whether the application needs to be updated when the system is updated in OTA mode but the **versionCode** value of the application remains unchanged.<br>If this tag is set to **true**, the packaging tool generates hash values for all HAP and HSP files of the application.<br>**NOTE**<br>This tag applies only to system applications.|Boolean|Yes (initial value: **false**)|

en/application-dev/quick-start/module-configuration-file.md

@@ -96,6 +96,7 @@ As shown above, the **module.json5** file contains several tags.
 | targetPriority | Priority of the module. When **targetModuleName** is set, the module is a module with the overlay feature. The value ranges from 1 to 100.|Number|Yes (initial value: **1**)|
 | [proxyDatas](#proxydatas) | List of data proxies provided by the module.| Object array| Yes (initial value: left empty)|
 | isolationMode | Multi-process configuration of the module. The options are as follows:<br>- **nonisolationFirst**: The module preferentially runs in a non-independent process.<br>- **isolationFirst**: The module preferentially runs in an independent process.<br>- **isolationOnly**: The module runs only in an independent process.<br>- **nonisolationOnly**: The module runs only in non-independent processes.|String|Yes (initial value: **nonisolationFirst**)|
+| generateBuildHash |Whether the hash value of the HAP or HSP file is generated by the packaging tool. The hash value (if any) is used to determine whether the application needs to be updated when the system is updated in OTA mode but the **versionCode** value of the application remains unchanged.<br>This tag is enabled only when the **generateBuildHash** tag in the [app.json5](./app-configuration-file.md) file is **false**.<br>**NOTE**<br>This tag applies only to system applications.|Boolean|Yes (initial value: **false**)|
 
 ## deviceTypes
 

en/application-dev/quick-start/module-structure.md

@@ -24,6 +24,7 @@ The **module** tag contains the HAP configuration.
 |commonEvents | Information about the common event static subscriber, which must contain the subscriber name, required permissions, and list of the common events subscribed to. When a subscribed event is sent, the static subscriber is started. Unlike the dynamic subscriber, the static subscriber does not need to proactively call the common event subscription API in the service code, and may not be running when the common event is published.| Object array| Yes (initial value: left empty)|
 | entryTheme | Keyword of an OpenHarmony internal theme. Set it to the resource index of the name.| String| Yes (initial value: left empty)|
 |testRunner | Test runner configuration.| Object| Yes (initial value: left empty)|
+|generateBuildHash |Whether the hash value of the HAP or HSP file is generated by the packaging tool. The hash value (if any) is used to determine whether the application needs to be updated when the system is updated in OTA mode but the value of [code](#internal-structure-of-the-apiversion-attribute) in **version** of the application remains unchanged.<br>**NOTE**<br>This tag applies only to system applications.|Boolean|Yes (initial value: **false**)|
 
 Example of the **module** tag structure:
 

en/application-dev/ui/arkts-layout-development-grid-layout.md

+# Responsive Grid Layout
+
+
+## Overview
+
+As an auxiliary positioning tool, the responsive grid layout is handy in UI design on mobile devices. It exhibits the following advantages:
+
+1. Provides rules for layout design and resolves issues of dynamic layout across devices with different sizes. By dividing a page into equal-width columns and rows, you can easily locate and typeset page elements.
+
+2. Provides a unified positioning method for the system to ensure layout consistency across layouts on different devices. This can reduce the complexity of design and development and improve work efficiency.
+
+3. Provides a flexible spacing adjustment method for applications to accommodate special layout requirements. You can adjust the spacing between columns and between rows to control the typesetting of the entire page.
+
+4. Completes the wrapping and adaptation automatically when overflow occurs. When the number of page elements exceeds the capacity of a row or column, they automatically wrap to a new row or column and adapt the typesetting to different devices.
+
+The [\<GridRow>](../reference/arkui-ts/ts-container-gridrow.md) component is the responsive grid container component and must be used together with the [\<GridCol>](../reference/arkui-ts/ts-container-gridcol.md) child component.
+
+
+## GridRow
+
+
+### Grid Breakpoints
+
+The grid system defines breakpoints, which are screen width types in effect, based on the horizontal width (screen density pixels, in vp) of the screens. You can use the breakpoints to meet specific layout requirements.
+
+By default, the grid system provides four breakpoints: xs, sm, md, and lg.
+
+| Breakpoint| Value Range (vp)       | Device Description     |
+| ---- | --------------- | --------- |
+| xs   | [0, 320)  | Device of the minimum size.|
+| sm   | [320,&nbsp;520) | Small-sized device. |
+| md   | [520,&nbsp;840) | Medium-sized device.|
+| lg   | [840,&nbsp;+∞)  | Large-sized device. |
+
+In the **\<GridRow>** component, you can use **breakpoints** to customize the value range of breakpoints. A maximum of six breakpoints are supported. In addition to the four default breakpoints, you can also enable the xl and xxl breakpoints for your application window layout.
+
+| Breakpoint| Device Description     |
+| ---- | --------- |
+| xs   | Device of the minimum size.|
+| sm   | Small-sized device. |
+| md   | Medium-sized device.|
+| lg   | Large-sized device. |
+| xl   | Extra-large-sized device.|
+| xxl  | Ultra-large-sized device.|
+
+- Set **breakpoints** with a monotonically increasing array based on the use case. Because **breakpoints** supports a maximum of six breakpoints, the maximum length of the monotonically increasing array is 5.
+
+
+  ```ts
+  breakpoints: {value: ['100vp', '200vp']}
+  ```
+
+  Enables three breakpoints: xs, sm, and md. If the value is less than 100 vp, the breakpoint is xs. If the value is 100–200 vp, the breakpoint is sm. If the value is greater than 200 vp, the breakpoint is md.
+
+
+  ```ts
+  breakpoints: {value: ['320vp', '520vp', '840vp', '1080vp']}
+  ```
+
+  Enables five breakpoints: xs, sm, md, lg, and xl. If the value is less than 320 vp, the breakpoint is xs. If the value is 320–520 vp, the breakpoint is sm. If the value is 520–840 vp, the breakpoint is md. If the value is 840–1080vp, the breakpoint is lg. If the value is greater than 1080 vp, the breakpoint is xl.
+
+- The grid system implements breakpoints by listening for the changes in the window or container size, and sets the breakpoint references through **reference**. Considering that the application may be displayed in non-full-screen mode, design the breakpoints with the application window width as the reference.
+
+In the following example, the default number of columns of a grid is 12. Breakpoints are used to divide the application window width into six ranges, where different grid items occupy a different number of columns.
+
+
+```ts
+@State bgColors: Color[] = [Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Pink, Color.Grey, Color.Blue, Color.Brown];
+...
+GridRow({
+  breakpoints: {
+    value: ['200vp', '300vp', '400vp', '500vp', '600vp'],
+    reference: BreakpointsReference.WindowSize
+  }
+}) {
+   ForEach(this.bgColors, (color, index) => {
+     GridCol({
+       span: {
+         xs: 2,
+         sm: 3,
+         md: 4,
+         lg: 6,
+         xl: 8,
+         xxl: 12
+       }
+     }) {
+       Row() {
+         Text(`${index}`)
+       }.width("100%").height('50vp')
+     }.backgroundColor(color)
+   })
+}                                                                    
+```
+
+![en-us_image_0000001511421272](figures/en-us_image_0000001511421272.gif)
+
+
+### Columns
+
+In the **\<GridRow>**, **columns** is used to set the total number of columns in the responsive grid layout.
+
+- The default value of **columns** is 12. If **columns** is not set, the responsive grid layout is divided into 12 columns at any breakpoint.
+
+
+  ```ts
+  @State bgColors: Color[] = [Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Pink, Color.Grey, Color.Blue, Color.Brown];
+  ...
+  GridRow() {
+    ForEach(this.bgColors, (item, index) => {
+      GridCol() {
+        Row() {
+          Text(`${index + 1}`)
+        }.width('100%').height('50')
+      }.backgroundColor(item)
+    })
+  }           
+  ```
+
+  ![en-us_image_0000001563060709](figures/en-us_image_0000001563060709.png)
+
+- When **columns** is set to a number, the responsive grid layout is divided into the specified number of columns regardless of the screen size. The following example sets the number of grid layout columns to 4 and 8 in sequence, where a child component occupies one column by default.
+
+
+  ```ts
+  @State bgColors: Color[] = [Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Pink, Color.Grey, Color.Blue, Color.Brown];
+  @State currentBp: string = 'unknown';
+  ...
+  Row() {
+    GridRow({ columns: 4 }) {
+      ForEach(this.bgColors, (item, index) => {
+        GridCol() {
+          Row() {
+            Text(`${index + 1}`)
+          }.width('100%').height('50')
+        }.backgroundColor(item)
+      })
+    }
+    .width('100%').height('100%')
+    .onBreakpointChange((breakpoint) => {
+      this.currentBp = breakpoint
+    })
+  }
+  .height(160)
+  .border({ color: Color.Blue, width: 2 })
+  .width('90%')
+
+  Row() {
+    GridRow({ columns: 8 }) {
+      ForEach(this.bgColors, (item, index) => {
+        GridCol() {
+          Row() {
+            Text(`${index + 1}`)
+          }.width('100%').height('50')
+        }.backgroundColor(item)
+      })
+    }
+    .width('100%').height('100%')
+    .onBreakpointChange((breakpoint) => {
+      this.currentBp = breakpoint
+    })
+  }
+  .height(160)
+  .border({ color: Color.Blue, width: 2 })
+  .width('90%')
+  ```
+
+  ![en-us_image_0000001511421268](figures/en-us_image_0000001511421268.png)
+
+- When **columns** is set to a value of the **GridRowColumnOption** type, you can assign values specific to the screen size (xs, sm, md, lg, xl, xxl).
+
+
+  ```ts
+  @State bgColors: Color[] = [Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Pink, Color.Grey, Color.Blue, Color.Brown]
+  GridRow({ columns: { sm: 4, md: 8 }, breakpoints: { value: ['200vp', '300vp', '400vp', '500vp', '600vp'] } }) {
+    ForEach(this.bgColors, (item, index) => {
+      GridCol() {
+        Row() {
+          Text(`${index + 1}`)
+        }.width('100%').height('50')
+      }.backgroundColor(item)
+    })
+  }
+  ```
+
+  ![en-us_image_0000001563060689](figures/en-us_image_0000001563060689.gif)
+
+  If **columns** is only set for the sm and md screen size types, screen sizes smaller than sm use the default value **12**, and screen sizes larger than md (lg, xl, and xxl) use the value of **columns** of the md type.
+
+
+### Alignment
+
+In the responsive grid layout, you can set the **direction** attribute of **\<GridRow>** to define the direction in which child components are arranged. The options are **GridRowDirection.Row** (from left to right) or **GridRowDirection.RowReverse** (from right to left). An appropriate **direction** value can make the page layout more flexible and meet the design requirements.
+
+- When child components are arranged from left to right (default):
+
+
+  ```ts
+  GridRow({ direction: GridRowDirection.Row }){}
+  ```
+
+  ![en-us_image_0000001511740488](figures/en-us_image_0000001511740488.png)
+
+- When child components are arranged from right to left (default):
+
+
+  ```ts
+  GridRow({ direction: GridRowDirection.RowReverse }){}
+  ```
+
+  ![en-us_image_0000001562940517](figures/en-us_image_0000001562940517.png)
+
+
+### Gutters
+
+In the **\<GridRow>** component, **gutter** is used to set the spacing between adjacent child components in the horizontal and vertical directions.
+
+- When **gutter** is set to a number, the number applies to both the horizontal and vertical directions. In the following example, the horizontal and vertical spacing between adjacent child components is set to **10**.
+
+
+  ```ts
+   GridRow({ gutter: 10 }){}
+  ```
+
+  ![en-us_image_0000001511740476](figures/en-us_image_0000001511740476.png)
+
+- When **gutter** is set to a value of the **GutterOption** type, the **x** attribute of the value indicates the horizontal gutter, and the **y** attribute indicates the vertical gutter.
+
+
+  ```ts
+  GridRow({ gutter: { x: 20, y: 50 } }){}
+  ```
+
+  ![en-us_image_0000001511900456](figures/en-us_image_0000001511900456.png)
+
+
+## GridCol
+
+The **\<GridCol>** component is a child component of the **\<GridRow>** component. You can set the **span**, **offset**, and **order** attributes of this component by passing parameters or using setters.
+
+- Setting **span**
+
+
+  ```ts
+  GridCol({ span: 2 }){}
+  GridCol({ span: { xs: 1, sm: 2, md: 3, lg: 4 } }){}
+  GridCol(){}.span(2)
+  GridCol(){}.span({ xs: 1, sm: 2, md: 3, lg: 4 })
+  ```
+
+- Setting **offset**
+
+
+  ```ts
+  GridCol({ offset: 2 }){}
+  GridCol({ offset: { xs: 2, sm: 2, md: 2, lg: 2 } }){}
+  GridCol(){}.offset(2)
+  GridCol(){}.offset({ xs: 1, sm: 2, md: 3, lg: 4 }) 
+  ```
+
+- Setting **order**
+
+
+  ```ts
+  GridCol({ order: 2 }){}
+  GridCol({ order: { xs: 1, sm: 2, md: 3, lg: 4 } }){}
+  GridCol(){}.order(2)
+  GridCol(){}.order({ xs: 1, sm: 2, md: 3, lg: 4 })
+  ```
+
+
+### span
+
+Sets the number of columns occupied by a child component in the grid layout, which determines the child component width. The default value is **1**.
+
+- When the value type is number, the number of columns occupied by the child component is the same across screen sizes.
+
+
+  ```ts
+  @State bgColors: Color[] = [Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Pink, Color.Grey, Color.Blue, Color.Brown];
+  ...
+  GridRow({ columns: 8 }) {
+    ForEach(this.bgColors, (color, index) => {
+      GridCol({ span: 2 }) {      
+        Row() {
+          Text(`${index}`)
+        }.width('100%').height('50vp')          
+      }
+      .backgroundColor(color)
+    })
+  }                
+  ```
+
+  ![en-us_image_0000001511421264](figures/en-us_image_0000001511421264.png)
+
+- When the value type is **GridColColumnOption**, you can assign values specific to the screen size (xs, sm, md, lg, xl, xxl).
+
+
+  ```ts
+  @State bgColors: Color[] = [Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Pink, Color.Grey, Color.Blue, Color.Brown];
+  ...
+  GridRow({ columns: 8 }) {
+    ForEach(this.bgColors, (color, index) => {
+      GridCol({ span: { xs: 1, sm: 2, md: 3, lg: 4 } }) {      
+        Row() {
+          Text(`${index}`)
+        }.width('100%').height('50vp')          
+      }
+      .backgroundColor(color)
+    })
+  }                
+  ```
+
+  ![en-us_image_0000001511740492](figures/en-us_image_0000001511740492.gif)
+
+
+### offset
+
+Sets the column offset of a child component relative to the previous child component. The default value is **0**.
+
+- When the value type is number, the column offset of the child component is the same across screen sizes.
+
+
+  ```ts
+  @State bgColors: Color[] = [Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Pink, Color.Grey, Color.Blue, Color.Brown];
+  ...
+  GridRow() {
+    ForEach(this.bgColors, (color, index) => {
+      GridCol({ offset: 2 }) {      
+        Row() {
+          Text('' + index)
+        }.width('100%').height('50vp')          
+      }
+      .backgroundColor(color)
+    })
+  }                
+  ```
+
+  ![en-us_image_0000001563060705](figures/en-us_image_0000001563060705.png)
+
+  By default, a grid is divided into 12 columns and each child component occupies one column with an offset of two columns. Each row holds four child components, with three columns per child component plus the gutter.
+
+- When the value type is **GridColColumnOption**, you can assign values specific to the screen size (xs, sm, md, lg, xl, xxl).
+
+
+  ```ts
+  @State bgColors: Color[] = [Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Pink, Color.Grey, Color.Blue, Color.Brown];
+  ...
+
+  GridRow() {
+    ForEach(this.bgColors, (color, index) => {
+      GridCol({ offset: { xs: 1, sm: 2, md: 3, lg: 4 } }) {      
+        Row() {
+          Text('' + index)
+        }.width('100%').height('50vp')          
+      }
+      .backgroundColor(color)
+    })
+  }                 
+  ```
+
+  ![en-us_image_0000001562700433](figures/en-us_image_0000001562700433.gif)
+
+
+### order
+
+Sets the sequence number of a child component in the grid layout. If a child component shares an **order** value with another child component or does not have **order** set, it is displayed based on its code sequence number. A child component with a smaller **order** value is placed before the one with a larger **order** value.
+
+If **order** is not set for all child components, those that have **order** set are displayed after those that do not have **order** set and are sorted in ascending order based on the value.
+
+- When the value type is number, child components are sorted in the same order across screen sizes.
+
+
+  ```ts
+  GridRow() {
+    GridCol({ order: 4 }) {
+      Row() {
+        Text('1')
+      }.width('100%').height('50vp')
+    }.backgroundColor(Color.Red)
+    GridCol({ order: 3 }) {
+      Row() {
+        Text('2')
+      }.width('100%').height('50vp')
+    }.backgroundColor(Color.Orange)
+    GridCol({ order: 2 }) {
+      Row() {
+        Text('3')
+      }.width('100%').height('50vp')
+    }.backgroundColor(Color.Yellow)
+    GridCol({ order: 1 }) {
+      Row() {
+        Text('4')
+      }.width('100%').height('50vp')
+    }.backgroundColor(Color.Green)
+  }            
+  ```
+
+  ![en-us_image_0000001511580892](figures/en-us_image_0000001511580892.png)
+
+- When the value type is **GridColColumnOption**, you can assign values specific to the screen size (xs, sm, md, lg, xl, xxl). You can set 1234 for xs, 2341 for sm, 3412 for md, and 2431 for lg.
+
+
+  ```ts
+  GridRow() {
+    GridCol({ order: { xs:1, sm:5, md:3, lg:7}}) {
+      Row() {
+        Text('1')
+      }.width('100%').height('50vp')
+    }.backgroundColor(Color.Red)
+    GridCol({ order: { xs:2, sm:2, md:6, lg:1} }) {
+      Row() {
+        Text('2')
+      }.width('100%').height('50vp')
+    }.backgroundColor(Color.Orange)
+    GridCol({ order: { xs:3, sm:3, md:1, lg:6} }) {
+      Row() {
+        Text('3')
+      }.width('100%').height('50vp')
+    }.backgroundColor(Color.Yellow)
+    GridCol({ order: { xs:4, sm:4, md:2, lg:5} }) {
+      Row() {
+        Text('4')
+      }.width('100%').height('50vp')
+    }.backgroundColor(Color.Green)
+  } 
+  ```
+
+  ![en-us_image_0000001511900444](figures/en-us_image_0000001511900444.gif)
+
+
+## Nesting of Responsive Grid Components
+
+Responsive grid components can be contained in other responsive grid components.
+
+In the following example, the responsive grid divides the entire space into 12 parts. **\<GridCol>** is nested in **\<GridRow>** at the first layer, which is divided into the large area in the center and the footer area. **\<GridCol>** is nested in **\<GridRow>** at the second layer, which is divided into the left and right areas. The child component space is divided based on the space allocation of the parent component at the upper layer. For example, the pink area is made up of 12 columns of the screen space, and the green and blue areas are made up of 12 columns of the **\<GridRow>** parent component.
+
+
+
+```ts
+@Entry
+@Component
+struct GridRowExample {
+  build() {
+    GridRow() {
+      GridCol({ span: { sm: 12 } }) {
+        GridRow() {
+          GridCol({ span: { sm: 2 } }) {
+            Row() {
+              Text('left').fontSize(24)
+            }
+            .justifyContent(FlexAlign.Center)
+            .height('90%')
+          }.backgroundColor('#ff41dbaa')
+
+          GridCol({ span: { sm: 10 } }) {
+            Row() {
+              Text('right').fontSize(24)
+            }
+            .justifyContent(FlexAlign.Center)
+            .height('90%')
+          }.backgroundColor('#ff4168db')
+        }
+        .backgroundColor('#19000000')
+        .height('100%')
+      }
+
+      GridCol({ span: { sm: 12 } }) {
+        Row() {
+          Text('footer').width('100%').textAlign(TextAlign.Center)
+        }.width('100%').height('10%').backgroundColor(Color.Pink)
+      }
+    }.width('100%').height(300)
+  }
+}
+```
+
+
+![en-us_image_0000001563060697](figures/en-us_image_0000001563060697.png)
+
+
+To sum up, the responsive grid components are powerful tools with a wide range of customization capabilities. With the required attributes set at different breakpoints, such as **Columns**, **Margin**, **Gutter**, and **span**, the layout is created automatically. You do not need to pay attention to the specific device type and device state (such as landscape and portrait).