GraphRangeSlider

The GraphRangeSlider is a SwiftUI native component that displays a graph while allowing you to select a range with a RangeSlider. It utilizes SwiftCharts for graph visualization and can be customized to match various styles.

Usage

Initialization

To build the view, you need to create a model that conforms to GraphRangeElement. In this protocol, x will be used to represent the values on the horizontal axis of the graph, while y will represent the values on the vertical axis.

struct Element: GraphRangeElement {
    let x: Int
    let y: Int
}

Once you have prepared the data, you will pass it to the GraphRangeSlider along with a KeyPath to distinguish the graph's id and a Binding object to monitor the selected data. In that case, if the element conforms to Identifiable, you do not need to pass the id.

struct ContentView: View {
    let data: [Element] = [
        .init(x: 10, y: 10),
        .init(x: 20, y: 20),
        ...
    ]

    @State var selectedData = [Element]()

    var body: some View {
        GraphRangeSlider(
            data,
            id: \.x,
            selectedData: $selectedData
        )
    }
}

UI Customization

• Width of the bar graph

You can set the dimension of the graph. This setting value is equivalent to the MarkDimension on SwiftCharts.

.graph(width: .ratio(0.5), height: .automatic)

• Inactive color

You can set the colors for the graph and slider when they are out of range.

.inactiveColor(Color.gray.opacity(0.8))

• Active color

You can set the colors for the graph and slider when they are within range.

.activeColor(Color.blue)

• Toggle radius

You can set the radius of the slider's toggle.

.slider(toggleRadius: 6)

• Height of the slider

You can set the height of the slider's track.

.slider(barHeight: 4)

• Slider and graph margin

You can set the margin for slider and graph.

.margin(4)

• Delegate functions

Called when the slider range changes.

.onChanged { data in
  // handler
}

Called when the drag ends.

.onEnded { data in
  // handler
}

Requirements

• Swift 6.0
• Xcode 16.0
• iOS 16.0
• macOS 13

Installation

Xcode

Xcode Toolbar Menu > File > Swift Packages > Add Package Dependency

https://github.com/tomosaaan/GraphRangeSlider.git

Swift Package Manager

.package(url: "https://github.com/tomosaaan/GraphRangeSlider.git"),