README.md · 赵俊/LeafChart

# LeafChart

#### 项目介绍

- 项目名称：LeafChart
- 所属系列：openharmony的第三方组件适配移植
- 功能：实现折线图 和直方图
- 项目移植状态：主功能完成
- 调用差异：无
- 开发版本：sdk6，DevEco Studio 2.2 Beta1
- 基线版本：  tag 1.1

#### 效果演示

#### 安装教程
1.在项目根目录下的build.gradle文件中，
 ```
 allprojects {
    repositories {
        maven {
            url 'https://s01.oss.sonatype.org/content/repositories/snapshots/'
        }
    }
 }
```
2.在entry模块的build.gradle文件中，
 ```
 dependencies {
    implementation('com.gitee.chinasoft_ohos:LeafChart:0.0.2-SNAPSHOT')
    ......  
 }
```

在sdk6，DevEco Studio 2.2 Beta1下项目可直接运行
如无法运行，删除项目.gradle,.idea,build,gradle,build.gradle文件，
并依据自己的版本创建新项目，将新项目的对应文件复制到根目录下

#### 使用说明

实现效果：折线图和直方图。
现在openharmony项目重写DependentLayout包含的控件如下定义：
XML中添加控件:

```
<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    xmlns:app="http://schemas.huawei.com/apk/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:background_element="#f2f2f2"
    ohos:orientation="vertical"
    >
    <DirectionalLayout
        ohos:height="40vp"
        ohos:width="match_content"
        ohos:orientation="horizontal">
        <Button
            ohos:weight="1"
            ohos:id="$+id:toChartInFragment"
            ohos:height="40vp"
            ohos:text_size="13fp"
            ohos:text_alignment="horizontal_center"
            ohos:padding="5vp"
            ohos:width="match_content"
            ohos:text="ChartInFragment"
            />
          <Button
            ohos:id="$+id:SlideSelectLineChart"
            ohos:height="40vp"
            ohos:text_size="13fp"
            ohos:width="match_content"
            ohos:text_alignment="horizontal_center"
            ohos:weight="1"
            ohos:padding="5vp"
            ohos:text="SlideSelectLineChart"
            />
        <Button
            ohos:weight="1"
            ohos:text_alignment="horizontal_center"
            ohos:id="$+id:OutsideLineChart"
            ohos:height="40vp"
            ohos:text_size="13fp"
            ohos:padding="5vp"
            ohos:width="match_content"
            ohos:text="OutsideLineChart"
            />
    </DirectionalLayout>
    <ScrollView
        ohos:height="match_parent"
        ohos:width="match_parent">
        <DirectionalLayout
            ohos:height="match_parent"
            ohos:width="match_parent"
            ohos:orientation="vertical">
           <com.hos.leafchat.LeafLineChart
                ohos:id="$+id:leaf_chart"
                ohos:height="300vp"
                ohos:width="match_parent"
                />
              <com.hos.leafchat.LeafSquareChart
                ohos:id="$+id:leaf_square_chart"
                ohos:height="300vp"
                ohos:width="match_parent"
                ohos:background_element="#ffffff"
                app:lc_coordinateMode="intersect"
                app:lc_startMarginX="20"
                />
        </DirectionalLayout>
   </ScrollView>
</DirectionalLayout>
```

设置折线图

private void initLineChart() {
            Axis axisX = new Axis(getAxisValuesX());
            axisX.setAxisColor(RgbPalette.parse("#33B5E5")).setTextColor(Color.DKGRAY.getValue()).setHasLines(true);
            Axis axisY = new Axis(getAxisValuesY());
            axisY.setAxisColor(RgbPalette.parse("#33B5E5")).setTextColor(Color.DKGRAY.getValue()).setHasLines(true).setShowText(true);
            leafLineChart.setAxisX(axisX);
            leafLineChart.setAxisY(axisY);
            List<Line> lines = new ArrayList<>();
            lines.add(getFoldLine());
            leafLineChart.setChartData(lines);
            leafLineChart.show();
        }
    
 设置直方图
    private void initSquareChart() {
        Axis axisX = new Axis(getAxisValuesX());
        axisX.setAxisColor(RgbPalette.parse("#FF4081")).setTextColor(Color.DKGRAY.getValue()).setHasLines(false);
        Axis axisY = new Axis(getAxisValuesY());
        axisY.setAxisColor(RgbPalette.parse("#FF4081")).setTextColor(Color.DKGRAY.getValue()).setHasLines(false).setShowText(true);
        leafSquareChart.setAxisX(axisX);
        leafSquareChart.setAxisY(axisY);
        leafSquareChart.setChartData(getSquares());
    }

###跳转到SlideSelectLineChart，请参考SlideSelectLineChartSlice。如下设置：

public void SlideSelectLineChart() {
            Intent secondIntent = new Intent();
            // 指定待启动FA的bundleName和abilityName
            Operation operation = new Intent.OperationBuilder()
                    .withDeviceId("")
                    .withBundleName("com.hos.linechartdemo")
                    .withAbilityName("com.hos.linechartdemo.SlideSelectLineChartAbility")
                    .build();
            secondIntent.setOperation(operation);
            // 通过AbilitySlice的startAbility接口实现启动另一个页面
            startAbility(secondIntent);
        }

###跳转到OutsideLineChart

```
    public void OutsideLineChart() {
        Intent secondIntent = new Intent();
        // 指定待启动FA的bundleName和abilityName
        Operation operation = new Intent.OperationBuilder()
                .withDeviceId("")
                .withBundleName("com.hos.linechartdemo")
                .withAbilityName("com.hos.linechartdemo.OutsideLineChartAbility")
                .build();
        secondIntent.setOperation(operation);
        // 通过AbilitySlice的startAbility接口实现启动另一个页面
        startAbility(secondIntent);
    }
```

#### 测试信息
CodeCheck代码测试无异常

CloudTest代码测试无异常

病毒安全检测通过

当前版本demo功能与原组件基本无差异

#### 版本迭代

- 0.0.2-SNAPSHOT

Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
```

赵俊/LeafChart

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