k_chart_pw 0.5.6
k_chart_pw: ^0.5.6 copied to clipboard
A Flutter K Chart. On the basis of the forked, we added the function that will show buy sell signal on the charts,and support draw lines on the charts,and text on the charts.
#Introduce We forked the project from https://github.com/OpenFlutter/k_chart and add some function to meet our requirments.
all the version below are the version we released.
[0.5.1] #
- added the function that will show buy sell signal on the charts
[0.5.2] #
- support set scale-x from parameter when build widget.it solve the problem that on the flutter web,the gesture scale not work.
[0.5.3] #
- support extra line draw on the charts
[0.5.4] #
- support extra text label draw on the charts
[0.5.5] #
- support text scale parameter in text label
[0.5.6] #
- support line stroke width parameter
how to publish: #
https://dart.cn/tools/pub/publishing
- pubspec.yaml modify
- CHANGELOG.md modify
- run command:
- dart pub publish --dry-run
- dart pub publish
Raw README.md from forked project #
k_chart #
Maybe this is the best k chart in Flutter.Support drag,scale,long press,fling.And easy to use.
display #
image
![Screenshot](https://github.com/mafanwei/k_chart/blob/master/example/images/Screenshot1.jpg)
![Screenshot](https://github.com/mafanwei/k_chart/blob/master/example/images/Screenshot2.jpg)
![Screenshot](https://github.com/mafanwei/k_chart/blob/master/example/images/Screenshot3.jpeg)
gif
Getting Started #
Install
dependencies:
k_chart: ^0.5.0
or use latest:
k_chart:
git:
url: https://github.com/mafanwei/k_chart
Usage
When you change the data, you must call this:
DataUtil.calculate(datas); //This function has some optional parameters: n is BOLL N-day closing price. k is BOLL param.
use k line chart:
Container(
height: 450,
width: double.infinity,
child: KChartWidget(
chartStyle, // Required for styling purposes
chartColors,// Required for styling purposes
datas,// Required,Data must be an ordered list,(history=>now)
isLine: isLine,// Decide whether it is k-line or time-sharing
mainState: _mainState,// Decide what the main view shows
secondaryState: _secondaryState,// Decide what the sub view shows
fixedLength: 2,// Displayed decimal precision
timeFormat: TimeFormat.YEAR_MONTH_DAY,
onLoadMore: (bool a) {},// Called when the data scrolls to the end. When a is true, it means the user is pulled to the end of the right side of the data. When a
// is false, it means the user is pulled to the end of the left side of the data.
maDayList: [5,10,20],// Display of MA,This parameter must be equal to DataUtil.calculate‘s maDayList
bgColor: [Colors.black, Colors.black],// The background color of the chart is gradient
translations: kChartTranslations,// Graphic language
volHidden: false,// hide volume
showNowPrice: true,// show now price
isOnDrag: (isDrag){},// true is on Drag.Don't load data while Draging.
onSecondaryTap:(){}// on secondary rect taped.
),
),
use TrendLine(New): You can use Trendline by long-pressing and moving your finger after setting true to isTrendLine property.
use depth chart:
DepthChart(_bids, _asks, chartColors) //Note: Datas must be an ordered list,
Donate
Buy a cup of coffee for the author.
![alipay](https://img-blog.csdnimg.cn/20181205161540134.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3F3ZTI1ODc4,size_16,color_FFFFFF,t_70)
![wechat](https://img-blog.csdnimg.cn/20181205162201519.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3F3ZTI1ODc4,size_16,color_FFFFFF,t_70)
Thanks
Other
Maybe there are some bugs in this k chart,or you want new indicators,you can create a pull request.I will happy to accept it and I hope we can make it better.
The version of fork