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// iOS Chart Examples

iOS Chart Examples - 60 Objective-C and Swift iOS Chart Examples in a 3 minute video

SciChart’s OpenGLES iOS Chart library ships with ~60 Objective-C and Swift 4 iOS Chart Examples which you can browse, play with, view the source-code and even export each iOS Objective-C / Swift Chart Example to a stand-alone XCode project. All of this is possible with the new and improved SciChart iOS Examples Suite, which ships as part of the SciChart iOS SDK.

// iOS Chart Theme Manager

In SciChart you can apply one of our 8 in-built themes to an iOS Chart, or even create your own! This is possible using the ThemeManager or ThemeProvider API.

Calling the SCIChartSurface.applyThemeProvider function with a string key to load one of our predefined themes, changes the look and feel of the chart.

For more info, see the source code for the example below.

iOS Chart Theme Manager

// Source Code

The Swift 4 and Objective-C source code for the iOS Chart Theme Manager example is included below (Scroll down!).

Did you know you can also view the source code from one of the following sources as well?

  1. Clone the SciChart.iOS.Examples from Github.
  2. Or, view source and export each example to an XCode project from the Obj-C version of the SciChart iOS Examples app.
  3. Also the SciChart iOS Trial contains the full source for the examples (link below).

DOWNLOAD THE IOS CHART EXAMPLES

iOS Chart Theme Manager - View and Export Source Code

// UsingThemeManagerLayout.xib

View on Github 
<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14109" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
    <device id="retina5_9" orientation="portrait">
        <adaptation id="fullscreen"/>
    </device>
    <dependencies>
        <deployment identifier="iOS"/>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14088"/>
        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
    </dependencies>
    <objects>
        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="UsingThemeManagerLayout">
            <connections>
                <outlet property="selectThemeButton" destination="BCI-Yz-10J" id="N22-2N-gA9"/>
                <outlet property="surface" destination="xSb-Rb-OZb" id="zLc-4f-aWK"/>
            </connections>
        </placeholder>
        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
        <view contentMode="scaleToFill" id="iN0-l3-epB">
            <rect key="frame" x="0.0" y="0.0" width="375" height="812"/>
            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
            <subviews>
                <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="xSb-Rb-OZb" customClass="SCIChartSurface">
                    <rect key="frame" x="0.0" y="90" width="375" height="688"/>
                    <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                </view>
                <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="BCI-Yz-10J">
                    <rect key="frame" x="8" y="52" width="359" height="30"/>
                    <color key="backgroundColor" red="0.2389469743" green="0.24695912" blue="0.25527140500000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                    <state key="normal" title="Select Theme">
                        <color key="titleColor" red="0.91675920050000004" green="0.91675920050000004" blue="0.91675920050000004" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                    </state>
                    <userDefinedRuntimeAttributes>
                        <userDefinedRuntimeAttribute type="number" keyPath="layer.cornerRadius">
                            <integer key="value" value="5"/>
                        </userDefinedRuntimeAttribute>
                    </userDefinedRuntimeAttributes>
                </button>
            </subviews>
            <color key="backgroundColor" red="0.10980392156862745" green="0.10980392156862745" blue="0.10980392156862745" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
            <constraints>
                <constraint firstItem="BCI-Yz-10J" firstAttribute="top" secondItem="vUN-kp-3ea" secondAttribute="top" constant="8" id="8Rs-Px-6H9"/>
                <constraint firstItem="xSb-Rb-OZb" firstAttribute="bottom" secondItem="vUN-kp-3ea" secondAttribute="bottom" id="PEJ-W6-0x6"/>
                <constraint firstItem="xSb-Rb-OZb" firstAttribute="trailing" secondItem="iN0-l3-epB" secondAttribute="trailing" id="ReJ-kQ-sBV"/>
                <constraint firstItem="BCI-Yz-10J" firstAttribute="leading" secondItem="vUN-kp-3ea" secondAttribute="leading" constant="8" id="ZrT-hn-0n9"/>
                <constraint firstItem="BCI-Yz-10J" firstAttribute="trailing" secondItem="vUN-kp-3ea" secondAttribute="trailing" constant="-8" id="aWg-0X-JWU"/>
                <constraint firstItem="xSb-Rb-OZb" firstAttribute="top" secondItem="BCI-Yz-10J" secondAttribute="bottom" constant="8" id="sqf-eQ-BuS"/>
                <constraint firstItem="xSb-Rb-OZb" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" id="ugV-OS-pkE"/>
            </constraints>
            <viewLayoutGuide key="safeArea" id="vUN-kp-3ea"/>
        </view>
    </objects>
</document>

// UsingThemeManagerView.m

View on Github 
//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2018. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// UsingThemeManagerView.m is part of the SCICHART® Examples. Permission is hereby granted
// to modify, create derivative works, distribute and publish any part of this source
// code whether for commercial, private or personal use.
//
// The SCICHART® examples are distributed in the hope that they will be useful, but
// without any warranty. It is provided "AS IS" without warranty of any kind, either
// expressed or implied.
//******************************************************************************

#import "UsingThemeManagerView.h"
#import "ThousandsLabelProvider.h"
#import "BillionsLabelProvider.h"
#import "DataManager.h"

@implementation UsingThemeManagerView

- (void)commonInit {
    [self.selectThemeButton setTitle:@"Chart V4 Dark" forState:UIControlStateNormal];
    [self.selectThemeButton addTarget:self action:@selector(p_changeTheme:) forControlEvents:UIControlEventTouchUpInside];
}

- (void)p_changeTheme:(UIButton *)button {
    UIAlertController * alertController = [UIAlertController alertControllerWithTitle:@"Select Theme" message:nil preferredStyle:UIAlertControllerStyleActionSheet];

    NSArray * themeNames = @[@"Black Steel", @"Bright Spark", @"Chrome", @"Chart V4 Dark", @"Electric", @"Expression Dark", @"Expression Light", @"Oscilloscope"];
    NSArray * themeKeys = @[SCIChart_BlackSteelStyleKey, SCIChart_Bright_SparkStyleKey, SCIChart_ChromeStyleKey, SCIChart_SciChartv4DarkStyleKey, SCIChart_ElectricStyleKey, SCIChart_ExpressionDarkStyleKey, SCIChart_ExpressionLightStyleKey, SCIChart_OscilloscopeStyleKey];

    for (NSString * themeName in themeNames) {
        UIAlertAction * actionTheme = [UIAlertAction actionWithTitle:themeName style:UIAlertActionStyleDefault handler:^(UIAlertAction *_Nonnull action) {
            NSString * themeKey = themeKeys[[themeNames indexOfObject:themeName]];
            [SCIThemeManager applyThemeToThemeable:self.surface withThemeKey:themeKey];
            [button setTitle:themeName forState:UIControlStateNormal];
        }];
        [alertController addAction:actionTheme];
    }

    [alertController addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:nil]];
    alertController.popoverPresentationController.sourceView = self;
    alertController.popoverPresentationController.sourceRect = button.frame;
    [[self.window rootViewController] presentViewController:alertController animated:YES completion:nil];
}

- (void)initExample {
    id <SCIAxis2DProtocol> xAxis = [SCINumericAxis new];
    xAxis.growBy = [[SCIDoubleRange alloc] initWithMin:SCIGeneric(0.1) Max:SCIGeneric(0.1)];
    xAxis.visibleRange = [[SCIDoubleRange alloc] initWithMin:SCIGeneric(150) Max:SCIGeneric(180)];

    id <SCIAxis2DProtocol> yRightAxis = [SCINumericAxis new];
    yRightAxis.growBy = [[SCIDoubleRange alloc] initWithMin:SCIGeneric(0.1) Max:SCIGeneric(0.1)];
    yRightAxis.axisAlignment = SCIAxisAlignment_Right;
    yRightAxis.autoRange = SCIAutoRange_Always;
    yRightAxis.axisId = @"PrimaryAxisId";
    yRightAxis.labelProvider = [ThousandsLabelProvider new];

    id <SCIAxis2DProtocol> yLeftAxis = [SCINumericAxis new];
    yLeftAxis.growBy = [[SCIDoubleRange alloc] initWithMin:SCIGeneric(0) Max:SCIGeneric(3)];
    yLeftAxis.axisAlignment = SCIAxisAlignment_Left;
    yLeftAxis.autoRange = SCIAutoRange_Always;
    yLeftAxis.axisId = @"SecondaryAxisId";
    yLeftAxis.labelProvider = [BillionsLabelProvider new];

    PriceSeries * priceSeries = [DataManager getPriceDataIndu];
    double movingAverageArray[priceSeries.size];
    double offsetLowData[priceSeries.size];
    
    SCIXyDataSeries * mountainDataSeries = [[SCIXyDataSeries alloc] initWithXType:SCIDataType_Double YType:SCIDataType_Double];
    mountainDataSeries.seriesName = @"Mountain Series";
    SCIXyDataSeries * lineDataSeries = [[SCIXyDataSeries alloc] initWithXType:SCIDataType_Double YType:SCIDataType_Double];
    lineDataSeries.seriesName = @"Line Series";
    SCIXyDataSeries * columnDataSeries = [[SCIXyDataSeries alloc] initWithXType:SCIDataType_Double YType:SCIDataType_Int64];
    columnDataSeries.seriesName = @"Column Series";
    SCIOhlcDataSeries * candlestickDataSeries = [[SCIOhlcDataSeries alloc] initWithXType:SCIDataType_Double YType:SCIDataType_Double];
    candlestickDataSeries.seriesName = @"Candlestick Series";

    [mountainDataSeries appendRangeX:SCIGeneric(priceSeries.indexesAsDouble) Y:SCIGeneric([DataManager offsetArray:priceSeries.lowData destArray:offsetLowData count:priceSeries.size offset:-1000]) Count:priceSeries.size];
    SCIGenericType movingAverage = SCIGeneric([DataManager computeMovingAverageOf:priceSeries.closeData destArray:movingAverageArray sourceArraySize:priceSeries.size length:50]);
    [lineDataSeries appendRangeX:SCIGeneric(priceSeries.indexesAsDouble) Y:movingAverage Count:priceSeries.size];
    [columnDataSeries appendRangeX:SCIGeneric(priceSeries.indexesAsDouble) Y:SCIGeneric(priceSeries.volumeData) Count:priceSeries.size];
    [candlestickDataSeries appendRangeX:SCIGeneric(priceSeries.indexesAsDouble)
                                   Open:SCIGeneric(priceSeries.openData)
                                   High:SCIGeneric(priceSeries.highData)
                                    Low:SCIGeneric(priceSeries.lowData)
                                  Close:SCIGeneric(priceSeries.closeData)
                                  Count:priceSeries.size];

    SCIFastMountainRenderableSeries * mountainSeries = [SCIFastMountainRenderableSeries new];
    mountainSeries.dataSeries = mountainDataSeries;
    mountainSeries.yAxisId = @"PrimaryAxisId";
    
    SCIFastLineRenderableSeries * lineSeries = [SCIFastLineRenderableSeries new];
    lineSeries.dataSeries = lineDataSeries;
    lineSeries.yAxisId = @"PrimaryAxisId";
    
    SCIFastColumnRenderableSeries * columnSeries = [SCIFastColumnRenderableSeries new];
    columnSeries.dataSeries = columnDataSeries;
    columnSeries.yAxisId = @"SecondaryAxisId";
    
    SCIFastCandlestickRenderableSeries * candlestickSeries = [SCIFastCandlestickRenderableSeries new];
    candlestickSeries.dataSeries = candlestickDataSeries;
    candlestickSeries.yAxisId = @"PrimaryAxisId";
    
    SCILegendModifier * legendModifier = [SCILegendModifier new];
    legendModifier.showCheckBoxes = NO;
    
    [SCIUpdateSuspender usingWithSuspendable:self.surface withBlock:^{
        [self.surface.xAxes add:xAxis];
        [self.surface.yAxes add:yRightAxis];
        [self.surface.yAxes add:yLeftAxis];
        [self.surface.renderableSeries add:mountainSeries];
        [self.surface.renderableSeries add:lineSeries];
        [self.surface.renderableSeries add:columnSeries];
        [self.surface.renderableSeries add:candlestickSeries];
        self.surface.chartModifiers = [[SCIChartModifierCollection alloc] initWithChildModifiers:@[legendModifier, [SCICursorModifier new], [SCIZoomExtentsModifier new]]];

        [mountainSeries addAnimation:[[SCIScaleRenderableSeriesAnimation alloc] initWithDuration:3 curveAnimation:SCIAnimationCurve_EaseOutElastic]];
        [lineSeries addAnimation:[[SCIScaleRenderableSeriesAnimation alloc] initWithDuration:3 curveAnimation:SCIAnimationCurve_EaseOutElastic]];
        [columnSeries addAnimation:[[SCIScaleRenderableSeriesAnimation alloc] initWithDuration:3 curveAnimation:SCIAnimationCurve_EaseOutElastic]];
        [candlestickSeries addAnimation:[[SCIScaleRenderableSeriesAnimation alloc] initWithDuration:3 curveAnimation:SCIAnimationCurve_EaseOutElastic]];
        
        [SCIThemeManager applyDefaultThemeToThemeable:self.surface];
    }];
}

@end

// UsingThemeManagerView.swift

View on Github 
//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2018. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// UsingThemeManagerView.swift is part of the SCICHART® Examples. Permission is hereby granted
// to modify, create derivative works, distribute and publish any part of this source
// code whether for commercial, private or personal use.
//
// The SCICHART® examples are distributed in the hope that they will be useful, but
// without any warranty. It is provided "AS IS" without warranty of any kind, either
// expressed or implied.
//******************************************************************************

class UsingThemeManagerView: UsingThemeManagerLayout {
  
    override func commonInit() {
        selectThemeButton.setTitle("Chart V4 Dark", for: .normal)
        selectThemeButton.addTarget(self, action: #selector(changeTheme), for: .touchUpInside)
    }

    @objc func changeTheme(_ sender: UIButton) {
        let alertController = UIAlertController(title: "Select Theme", message: "", preferredStyle: .actionSheet)
        
        let themeNames = ["Black Steel", "Bright Spark", "Chrome", "Chart V4 Dark", "Electric", "Expression Dark", "Expression Light", "Oscilloscope"]
        let themeKeys = [SCIChart_BlackSteelStyleKey, SCIChart_Bright_SparkStyleKey, SCIChart_ChromeStyleKey, SCIChart_SciChartv4DarkStyleKey, SCIChart_ElectricStyleKey, SCIChart_ExpressionDarkStyleKey, SCIChart_ExpressionLightStyleKey, SCIChart_OscilloscopeStyleKey]
        
        for themeName: String in themeNames {
            let actionTheme = UIAlertAction(title: themeName, style: .default, handler: { (action: UIAlertAction) -> Void in
                let themeKey = themeKeys[themeNames.index(of: themeName)!]
                SCIThemeManager.applyTheme(toThemeable: self.surface, withThemeKey: themeKey)
                sender.setTitle(themeName, for: .normal)
            })
            alertController.addAction(actionTheme)
        }

        alertController.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))

        if let controller = alertController.popoverPresentationController {
            controller.sourceView = self
            controller.sourceRect = sender.frame
        }
        self.window!.rootViewController!.present(alertController, animated: true, completion: nil)
    }
    
    override func initExample() {
        let xAxis = SCINumericAxis()
        xAxis.growBy = SCIDoubleRange(min: SCIGeneric(0.1), max: SCIGeneric(0.1))
        xAxis.visibleRange = SCIDoubleRange(min: SCIGeneric(150), max: SCIGeneric(180))
        
        let yRightAxis = SCINumericAxis()
        yRightAxis.growBy = SCIDoubleRange(min: SCIGeneric(0.1), max: SCIGeneric(0.1))
        yRightAxis.axisAlignment = .right
        yRightAxis.autoRange = .always
        yRightAxis.axisId = "PrimaryAxisId"
        yRightAxis.labelProvider = ThousandsLabelProvider()
        
        let yLeftAxis = SCINumericAxis()
        yLeftAxis.growBy = SCIDoubleRange(min: SCIGeneric(0), max: SCIGeneric(3))
        yLeftAxis.axisAlignment = .left
        yLeftAxis.autoRange = .always
        yLeftAxis.axisId = "SecondaryAxisId"
        yLeftAxis.labelProvider = BillionsLabelProvider()
        
        let priceData = DataManager.getPriceDataIndu()
        let size = priceData!.size()
        
        let movingAverageArray = [Double](repeating: 0, count: Int(size))
        let movingAverageArrayPointer: UnsafeMutablePointer<Double> = UnsafeMutablePointer(mutating: movingAverageArray)

        let mountainDataSeries = SCIXyDataSeries(xType: .double, yType: .double)
        mountainDataSeries.seriesName = "Mountain Series"
        let lineDataSeries = SCIXyDataSeries(xType: .double, yType: .double)
        lineDataSeries.seriesName = "Line Series"
        let columnDataSeries = SCIXyDataSeries(xType: .double, yType: .double)
        columnDataSeries.seriesName = "Column Series"
        let candlestickDataSeries = SCIOhlcDataSeries(xType: .double, yType: .double)
        candlestickDataSeries.seriesName = "Candlestick Series"

        mountainDataSeries.appendRangeX(DataManager.getGenericDataArray(priceData!.indexesAsDouble()), y: DataManager.getGenericDataArrayWithOffset(priceData!.closeData(), size: size, offset: -1000), count: size)
        let movingAverage = SCIGeneric(DataManager.computeMovingAverage(of: priceData!.closeData(), destArray: movingAverageArrayPointer, sourceArraySize: size, length: 50))
        lineDataSeries.appendRangeX(DataManager.getGenericDataArray(priceData!.indexesAsDouble()), y: movingAverage, count: size)
        columnDataSeries.appendRangeX(DataManager.getGenericDataArray(priceData!.indexesAsDouble()), y: DataManager.getGenericDataLongArray(priceData!.volumeData()), count: size)
        candlestickDataSeries.appendRangeX(DataManager.getGenericDataArray(priceData!.indexesAsDouble()),
                                           open: DataManager.getGenericDataArray(priceData!.openData()),
                                           high: DataManager.getGenericDataArray(priceData!.highData()),
                                           low: DataManager.getGenericDataArray(priceData!.lowData()),
                                           close: DataManager.getGenericDataArray(priceData!.closeData()),
                                           count: size)
        
        let mountainSeries = SCIFastMountainRenderableSeries()
        mountainSeries.dataSeries = mountainDataSeries
        mountainSeries.yAxisId = "PrimaryAxisId"

        let lineSeries = SCIFastLineRenderableSeries()
        lineSeries.dataSeries = lineDataSeries
        lineSeries.yAxisId = "PrimaryAxisId"
        
        let columnSeries = SCIFastColumnRenderableSeries()
        columnSeries.dataSeries = columnDataSeries
        columnSeries.yAxisId = "SecondaryAxisId"

        let candlestickSeries = SCIFastCandlestickRenderableSeries()
        candlestickSeries.dataSeries = candlestickDataSeries
        candlestickSeries.yAxisId = "PrimaryAxisId"
        
        let legendModifier = SCILegendModifier()
        legendModifier.showCheckBoxes = false
        
        SCIUpdateSuspender.usingWithSuspendable(surface) {
            self.surface.xAxes.add(xAxis)
            self.surface.yAxes.add(yRightAxis)
            self.surface.yAxes.add(yLeftAxis)
            self.surface.renderableSeries.add(mountainSeries)
            self.surface.renderableSeries.add(lineSeries)
            self.surface.renderableSeries.add(candlestickSeries)
            self.surface.renderableSeries.add(columnSeries)
            self.surface.chartModifiers = SCIChartModifierCollection(childModifiers: [legendModifier, SCICursorModifier(), SCIZoomExtentsModifier()])
            
            mountainSeries.addAnimation(SCIScaleRenderableSeriesAnimation(duration: 3, curveAnimation: .easeOutElastic))
            lineSeries.addAnimation(SCIScaleRenderableSeriesAnimation(duration: 3, curveAnimation: .easeOutElastic))
            columnSeries.addAnimation(SCIScaleRenderableSeriesAnimation(duration: 3, curveAnimation: .easeOutElastic))
            mountainSeries.addAnimation(SCIScaleRenderableSeriesAnimation(duration: 3, curveAnimation: .easeOutElastic))
            
            SCIThemeManager.applyDefaultTheme(toThemeable: self.surface)
        }
    }
}

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