Platform iOS Autolayout compatible Swift 4 compatible License: APACHE 2.0
This library includes a chart to display accumulated orders in a high-customazible, interactive and Auto Layout capable way.
Just drag and drop the directory DepthChart into your existing project and start using it directly.
You can view and run the example application. Just compile this project.
Otherwise usage is as follows:
private let depthChart = DepthChart() // ... in intialization add the following: // add buy orders depthChart.data.addBuyOrder(with: price, amount: amount) // add sell orders depthChart.data.addSellOrder(with: price, amount: amount) // style (refer to DepthChartStyle.swift) depthChart.style.xAxisFont = UIFont.systemFont(ofSize: 11) depthChart.style.yAxisFont = UIFont.systemFont(ofSize: 11) // define the position of axes depthChart.xAxisPosition = .top depthChart.yAxisPosition = .left // or .hidden
By default, prices are formatted using two fraction digits (8.00 $). You can customize this behavior by providing a delegate:
// ... in intialization add the following: depthChart.delegate = self // implement the following methods func formatXLabel(for value: Double) -> String { let nf = NumberFormatter() nf.numberStyle = .currency // display 8 fraction digits nf.minimumFractionDigits = 8 nf.maximumFractionDigits = 8 return nf.string(from: NSNumber(value: value))! }
Please understand I created this library within 6 hours of work. It may contain bugs or may be unoptimized. Feel free to contribute.