# yoga

**Repository Path**: HarmonyOS-tpc/yoga

## Basic Information

- **Project Name**: yoga
- **Description**: Yoga is a cross-platform layout engine which implements Flexbox.
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 5
- **Forks**: 4
- **Created**: 2021-04-01
- **Last Updated**: 2024-09-30

## Categories & Tags

**Categories**: harmony

**Tags**: None

## README

# yoga
Yoga is a cross-platform layout engine which implements Flexbox.

## 概述
 * native和接口已打通
 * 支持自定义xml属性来控制布局
 * 设置布局中不支持Image控件，要使用Text控件替代

## 演示
<img src="screenshot/screenshot1.png" width="50%"/><img src="screenshot/screenshot2.png" width="50%"/><img src="screenshot/screenshot3.png" width="50%"/>

## 集成
   
```
自行编译工程entity、yoga、yoga_layout、fb生成 libyoga.so、libfb.so、libyogacore.so
将其添加到要集成的libs文件夹内,在entry的gradle内添加如下代码
方式一：
通过library生成har包，添加har包到libs文件夹内
在entry的gradle内添加如下代码
implementation fileTree(dir: 'libs', include: ['*.jar', '*.har'])

方式二：
allprojects{
    repositories{
        mavenCentral()
    }
}
implementation 'io.openharmony.tpc.thirdlib:yoga-layout:1.0.1'
implementation 'io.openharmony.tpc.thirdlib:yoga-yoga:1.0.0'
implementation 'io.openharmony.tpc.thirdlib:yoga-fb:1.0.0'
```

## entry运行要求
   通过DevEco studio,并下载SDK
   将项目中的build.gradle文件中dependencies→classpath版本改为对应的版本（即你的IDE新建项目中所用的版本）

## 如何编译Native
   通过DevEco下载SDK Native，配置cmake、llvm环境变量，然后进行构建Build。

## 示例

```java

    static {
        System.loadLibrary("yoga");
        System.loadLibrary("yogacore");
        System.loadLibrary("fb");
    }
```

```xml

   <?xml version="1.0" encoding="utf-8" ?>
   <com.facebook.yoga.ohos.YogaLayout
           xmlns:ohos="http://schemas.huawei.com/res/ohos"
           xmlns:yoga="http://schemas.huawei.com/apk/res-auto"
           ohos:height="match_parent"
           ohos:width="match_parent"
   >

       <com.facebook.yoga.ohos.YogaLayout
               ohos:height="60vp"
               ohos:width="match_content"
               yoga:yg_alignItems="center"
               yoga:yg_flexDirection="row"
               yoga:yg_marginHorizontal="15"
               yoga:yg_marginStart="15"
               yoga:yg_marginTop="50"
               ohos:background_element="$graphic:item_element"
       >


           <Text
                   ohos:height="50vp"
                   ohos:width="50vp"
                   ohos:background_element="$media:icon"
                   yoga:yg_flex="0"
                   yoga:yg_marginStart="15"
           />


           <Text
                   ohos:height="50vp"
                   ohos:width="220vp"
                   ohos:text="Hello.  I am Yoga!"
                   ohos:text_color="#000000"
                   yoga:yg_flex="1"
                   yoga:yg_marginStart="15"
                   ohos:text_size="20fp"
           />
       </com.facebook.yoga.ohos.YogaLayout>

       <com.facebook.yoga.ohos.YogaLayout
               ohos:background_element="$graphic:item_element"
               ohos:height="60vp"
               ohos:width="match_content"
               yoga:yg_alignItems="center"
               yoga:yg_flexDirection="row"
               yoga:yg_marginHorizontal="15"
               yoga:yg_marginTop="20"
               yoga:yg_marginStart="15"
       >


           <Text
                   ohos:height="50vp"
                   ohos:width="50vp"
                   ohos:background_element="$media:icon"
                   yoga:yg_flex="0"
                   yoga:yg_marginStart="15"
           />

           <Text
                   ohos:height="50vp"
                   ohos:width="250vp"
                   ohos:text="I am a layout engine!"
                   ohos:text_color="#000000"
                   yoga:yg_flex="1"
                   yoga:yg_marginStart="15"
                   ohos:text_size="20fp"
           />
       </com.facebook.yoga.ohos.YogaLayout>

       <com.facebook.yoga.ohos.YogaLayout
               ohos:background_element="$graphic:item_element"
               ohos:height="60vp"
               ohos:width="match_content"
               yoga:yg_alignItems="center"
               yoga:yg_flexDirection="row"
               yoga:yg_marginHorizontal="15"
               yoga:yg_marginTop="20"
       >

           <Text
                   ohos:height="50vp"
                   ohos:width="50vp"
                   ohos:background_element="$media:icon"
                   yoga:yg_flex="0"
                   yoga:yg_marginStart="15"
           />

           <Text
                   ohos:height="50vp"
                   ohos:width="250vp"
                   ohos:text="I run natively."
                   ohos:text_color="#000000"
                   yoga:yg_flex="1"
                   yoga:yg_marginStart="15"
                   ohos:text_size="20fp"
           />
       </com.facebook.yoga.ohos.YogaLayout>

       <com.facebook.yoga.ohos.YogaLayout
               ohos:background_element="$graphic:item_element"
               ohos:height="60vp"
               ohos:width="match_content"
               yoga:yg_alignItems="center"
               yoga:yg_flexDirection="row"
               yoga:yg_marginHorizontal="15"
               yoga:yg_marginTop="20"
       >

           <Text
                   ohos:height="50vp"
                   ohos:width="50vp"
                   ohos:background_element="$media:icon"
                   yoga:yg_flex="0"
           />

           <Text
                   ohos:height="50vp"
                   ohos:width="200vp"
                   ohos:text="So I\'m fast."
                   ohos:text_color="#000000"
                   yoga:yg_flex="1"
                   yoga:yg_marginStart="15"
                   ohos:text_size="20fp"
           />
       </com.facebook.yoga.ohos.YogaLayout>

       <com.facebook.yoga.ohos.YogaLayout
               ohos:background_element="$graphic:item_element"
               ohos:height="60vp"
               ohos:width="match_content"
               yoga:yg_alignItems="center"
               yoga:yg_flexDirection="row"
               yoga:yg_marginHorizontal="15"
               yoga:yg_marginTop="20"
       >

           <Text
                   ohos:height="50vp"
                   ohos:width="50vp"
                   ohos:background_element="$media:icon"
                   yoga:yg_flex="0"
           />

           <Text
                   ohos:height="50vp"
                   ohos:width="200vp"
                   ohos:text="Who are you?"
                   ohos:text_color="#000000"
                   yoga:yg_flex="1"
                   yoga:yg_marginStart="15"
                   ohos:text_size="20fp"
           />
       </com.facebook.yoga.ohos.YogaLayout>

   </com.facebook.yoga.ohos.YogaLayout>
```

## Lincense

MIT License

Copyright (c) Facebook, Inc. and its affiliates.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.