/ Chart

Elegant OHLC Candlestick and Trade Volume charts for Flutter

Elegant OHLC Candlestick and Trade Volume charts for Flutter

flutter_candlesticks

Elegant OHLC Candlestick and Trade Volume charts for Flutter.

Usage

Install for Flutter with pub.

Property Description
data Required. List of maps containing open, high, low, close and volumeto
enableGridLines Required. Enable or disable grid lines
volumeProp Required. Proportion of container to be given to volume bars
lineWidth Default 1.0. Width of most lines
gridLineAmount Default 5. Number of grid lines to draw. Labels automatically assigned
gridLineWidth Default 0.5. Width of grid lines
gridLineColor Default Colors.grey. Color of grid lines
gridLineLabelColor Default Colors.grey. Color of grid line labels
labelPrefix Default "$". Prefix before grid line labels.
increaseColor Default Colors.green. Color of increasing candles.
decreaseColor Default Colors.red. Color of decreasing candles.

Examples

No Grid Lines

new OHLCVGraph(
    data: sampleData,
    enableGridLines: false,
    volumeProp: 0.2
    )
)

Candle size dynamically changes by amount of data

Grid Lines

new OHLCVGraph(
    data: sampleData,
    enableGridLines: true,
    volumeProp: 0.2,
    gridLineAmount: 5,
    gridLineColor: Colors.grey[300],
    gridLineLabelColor: Colors.grey
    )
)

Full App Example

import 'package:flutter/material.dart';
import 'package:flutter_candlesticks/flutter_candlesticks.dart';

void main() {
  List sampleData = [
    {"open":50.0, "high":100.0, "low":40.0, "close":80, "volumeto":5000.0},
    {"open":80.0, "high":90.0, "low":55.0, "close":65, "volumeto":4000.0},
    {"open":65.0, "high":120.0, "low":60.0, "close":90, "volumeto":7000.0},
    {"open":90.0, "high":95.0, "low":85.0, "close":80, "volumeto":2000.0},
    {"open":80.0, "high":85.0, "low":40.0, "close":50, "volumeto":3000.0},
  ];

  runApp(
    new MaterialApp(
      home: new Scaffold(
        body: new Center(
          child: new Container(
            height: 500.0,
            child: new OHLCVGraph(
                data: sampleData,
                enableGridLines: false,
                volumeProp: 0.2
            ),
          ),
        ),
      )
    )
  );
}

GitHub