A basic chart written by kotlin. Support animation loading, touch event monitoring and JSON data.

Last update: Dec 21, 2022

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Overview

一款轻量级android图表组件SimpleChart-Kotlin

效果演示

引入方式

gradle导入

在更目录中的build.gradle添加 JitPack仓库

allprojects {
	repositories {
		...
		maven { url 'https://jitpack.io' }
	}
}

以上是官方提供的添加仓库方法，实测在较新的gradle版本中此方式无法成功生效，而是需要在settings.gradle中添加：

dependencyResolutionManagement {
	repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
	repositories {
    	...
    	maven { url 'https://jitpack.io' }
 }
}

添加依赖

dependencies {
    implementation 'com.github.EnthuDai:SimpleChart-Kotlin:1.0.7'
}

PS: 发布一个kotlin的android library到jitpack的过程极为艰难，尤其是在使用较新版本的gradle时，大家如果遇到问题，可以参考一下这篇文章

kotlin android library 发布至jitpack问题及解决方式记载

源码导入

下载该项目源码

git clone https://github.com/EnthuDai/SimpleChart-Kotlin.git

在需要使用该库的项目中通过文件导入此模块

在app的build.gradle的依赖中添加此库

dependencies {

	...

 implementation project(':chart')
}

使用方式

布局文件

<com.poemdistance.chart.BarChart
        android:id="@+id/barChart"
        android:layout_width="0dp"
        android:layout_height="300dp"
        app:title="柱状图"
        app:xAxis="staDate"
        app:yAxis="profit"
        app:yAxisDesc="入账收益"/>

设置数据

数据设置的方式非常简单，支持直接传入JSON数组字符串，或传入List< Any>形式的对象集合。所有类型图表均支持这两种方式的数据传入。JSON数组字符串的导入代码如下：

val jsonData = """
        [{"staDate":"01-09","profit":235,"activeOrderCount":36},
        {"staDate":"01-08","profit":244,"activeOrderCount":33},
        {"staDate":"01-07","profit":159,"activeOrderCount":29},
        {"staDate":"01-06","profit":452,"activeOrderCount":48},
        {"staDate":"01-05","profit":116,"activeOrderCount":19},
        {"staDate":"01-04","profit":131,"activeOrderCount":22},
        {"staDate":"01-03","profit":345,"activeOrderCount":32},
        {"staDate":"01-02","profit":277,"activeOrderCount":35},
        {"staDate":"01-01","profit":206,"activeOrderCount":28}]
    """.trimIndent()
barChart.updateData(jsonData) // barChart为该图表的实例

事件监听

监听用户当前触摸的数据项

// 监听触摸事件，将获得Json字符串形式的当前触控数据，当触控点从图表移开时返回null
barChart.listener =  {
	it?.let{
		Log.d(LOG_TAG, it)
	}
}

配置项

所有图表均具备的配置项

属性名	类型	默认值	含义
title	String		图表标题
animation	Boolean	True	是否开启加载动画
animationDuration	Int	500	加载动画时长
showLegend	Boolean	自动（单维度数据时不显示）	是否显示图例

柱状图

属性名	类型	默认值	含义	是否必填
xAxis	String		x轴数据的参数名	是
yAxis	String		y轴数据的参数名	是
yAxisDesc	String	yAxis值	描述y轴数据项的参数名	否

折线图

属性名	类型	默认值	含义	是否必填
xAxis	String		x轴数据的参数名	是
yAxis	String		y轴数据的参数名，支持多个，用“，”分隔	是
yAxisDesc	String	yAxis值	描述y轴数据项的参数名，支持多个，用“，”分隔	否

饼图

属性名	类型	默认值	含义	是否必填
name	String		数据项的展示参数名	是
value	String		数据项的值参数名	是

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