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1 vote
3k views

I didn’t see anything in any docs, so I am just wanting to verify this info…

Is this correct that you have to link in and ship the libSwiftCore (+ other swift libs) with an app using SciCharts on iOS? When I added the chart library to my app; the app crashed at startup with missing dynamic load of libSwiftCore.dylib on a real device (emulators run fine).

Enabling ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES in the build settings fixed this issue. But this surprised me that the SciChart library would actually require Swift.

Was this intentional; or did the library somehow pickup an unintentional reference somewhere….

0 votes
2k views

Hi,

I’m trying to convert Java code to swift and I need the same CustomCategoryDateAxis class as Yura’s answer: https://www.scichart.com/questions/android/setvisiblerangelimitmode-on-xaxis

I try to inherit from SCICategoryDateAxis but there is no isZoomConstrainSatisfied and coerceVisibleRange overrides.

How can i write the same code in swift?

Tnx.

0 votes
2k views

Hi,

I’m trying to convert Java code to swift and I need the AnnotationLabel’s setAxisLabelStyle equivalent.

AnnotationLabel annotationLabel = new AnnotationLabel(getContext());
annotationLabel.setLabelPlacement(LabelPlacement.Axis);

            annotationLabel.setAxisLabelStyle(new Action1<AnnotationLabel>()
            {
                @Override
                public void execute(AnnotationLabel annotationLabel)
                {
                    annotationLabel.setFontStyle(new FontStyle(37.0f, Color.BLUE));
                    annotationLabel.setBackgroundResource(R.drawable.current_price);
                }
            });

How can i apply this code in swift?

0 votes
4k views

How would I go about doing this in swift?

0 votes
3k views

I would like to add scrollBar to SCINumericAxis for example xAxis.

I did find documentation:
https://www.scichart.com/documentation/v5.x/webframe.html#Scrollbars.html

But on iOS version, I can’t find numericAxis.Scrollbar is missing

0 votes
2k views

Hello,
I’m trying to convert Android (Java) code to iOS (Swift), and I need to create a custom SCIZoomPanModifier. In the android code, onFling, onDown, and onDown were overridden, but I can’t seem to do that in iOS. How can I override onFling, onDown, and onUp in iOS to mimic the android code?

Thanks

0 votes
2k views

Hi,

How can i listen annotation selection changes? I try this code but i’m getting error “Cannot assign to property: ‘lineAnnotation’ is immutable”

var lineAnnotation = SCILineAnnotation()
lineAnnotation.annotationSelectionChangedListener = { (annotation, isSelected) in
//
}

Tnx.

1 vote
2k views

Hi,

I’m trying to convert Java code to swift and I need the RolloverModifier class’s updateCurrentPoint method. I create CustomRolloverModifier class inherits from SCIRolloverModifier class and import SciChart.Protected.SCIRolloverModifier extension too. But i can’t find updateCurrentPoint method. What is the updateCurrentPoint equivalent method on swift?

Thanks.

1 vote
1k views

Try to integrate new SciChart.xcframework 4.2.0 instead of SciChart.framework 2.0 to the project and build failed in Xcode 12.4 with the next errors:
RNSciCandlestickChart.swift:
1) 335th line: Editor placeholder in source file
dates.add(date!))
2) 549th line: Cannot convert value of type ‘Bundle.Type’ to expected argument type ‘Bundle’ SCIThemeManager.addTheme(byThemeKey: theme, from: Bundle)
3) 768th line: Method does not override any method from its superclass
override func internalHandleGesture(_ gestureRecognizer: UIGestureRecognizer)
AnnotationDragListener.swift:
1) 4th line: Cannot find type ‘SCIAnnotationDragListener’ in scope
class AnnotationDragListener: SCIAnnotationDragListener
RNSciLineChart.swift:
1) 475th line: Editor placeholder in source file
SCIThemeManager.addTheme(byThemeKey: theme, from: Bundle)
Can you tell me please can I launch SciChart.xcframework 4.2.0 in Xcode 12.4? Any how to solve this issues?

0 votes
1k views

SplineLineRenderableSeries doesn’t render curved graph line properly in Swift , it renders stepped line for the data series .For reference please check the Screenshot attached ,ECG line(Green) rendered as stepped line (Marked by rectangle). Let me know anything I need to update in my code

Please find below the code for initialisation go the graph and updating the graph same. I am updating graph realtime with same DataSeries.

  1. Graph initialisation code

    func init_ECG_Chart()
    {
    //Remove Theme From Chart By Apply & Remove & Change Border color
    SCIThemeManager.applyTheme(to: self.ecg_Chart_Surface, withThemeKey: SCIChart_Bright_SparkStyleKey)
    SCIThemeManager.removeTheme(byThemeKey: SCIChart_Bright_SparkStyleKey)

    self.ecg_Chart_Surface.isOpaque = false
    self.ecg_Chart_Surface.backgroundColor = .clear
    self.ecg_Chart_Surface.renderableSeriesAreaBorderStyle = SCISolidPenStyle(color: .clear, thickness: 0)
    
    //Line
    let lineSeries = SCISplineLineRenderableSeries()
    
    lineSeries.strokeStyle = SCISolidPenStyle(color: ecgSelectedColor, thickness: 2.0)
    lineSeries.dataSeries = ecgLineDataSeries
    

    // lineSeries.resamplingMode = SCIResamplingMode_None //Resampling off
    // lineSeries.resamplingMode = SCIResamplingMode_Auto //Resampling off

    let xAxis = SCINumericAxis()
    xAxis.axisAlignment = .bottom
    xAxis.drawLabels = false
    xAxis.drawMajorGridLines = false
    xAxis.drawMinorGridLines = false
    xAxis.drawMajorTicks = false
    xAxis.drawMinorTicks = false
    
    let yAxis = SCINumericAxis()
    yAxis.axisAlignment = .left
    yAxis.drawLabels = false
    yAxis.drawMajorGridLines = false
    yAxis.drawMinorGridLines = false
    yAxis.drawMajorTicks = false
    yAxis.drawMinorTicks = false
    yAxis.autoRange = .never   //Stop auto ranging axis
    yAxis.visibleRange = SCIDoubleRange(min: -32, max: 96)
    

    // yAxis.visibleRangeLimit = SCIDoubleRange(min: -32, max: 96)

    yAxis.growBy = SCIDoubleRange(min: 0.2, max: 0.2)
    
    SCIUpdateSuspender.usingWith(self.ecg_Chart_Surface) {
    
        self.ecg_Chart_Surface.xAxes.add(items: xAxis)
        self.ecg_Chart_Surface.yAxes.add(items: yAxis)
        self.ecg_Chart_Surface.renderableSeries.add(items: lineSeries)
    
        //self.ecg_Chart_Surface.chartModifiers.add(items: SCIZoomExtentsModifier(),SCIPinchZoomModifier())
    }
    

    } //Init ECG

  2. Graph updation code

    func update_ECG_Chart(xValues:SCIDoubleValues,yValues:SCIDoubleValues)
    {

    SCIUpdateSuspender.usingWith(self.ecg_Chart_Surface) {
    
        self.ecgLineDataSeries.append(x: xValues, y: yValues)
      //  self.ecg_Chart_Surface.zoomExtents()
    
        self.ecg_Chart_Surface.zoomExtentsX()
    
    }
    

    } //Update ECG

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