iOS & macOS Charting Documentation - SciChart iOS & macOS Charts SDK v4.x

ISCIPieChartSurfaceChangeListener

@protocol ISCIPieChartSurfaceChangeListener <ISCIRenderableSeriesChangeListener,
                                             ISCIChartResizeListener>

Defines the interface with methods which are used for notification about changes in SCIPieChartSurface instance.


                        
                        
                        -onPieRenderSurfaceRendered:

Called when parent SCIPieChartSurface rendered.

Declaration

Objective-C

- (void)onPieRenderSurfaceRendered:
    (nonnull SCIPieChartRenderedMessage *)renderedMessage;

Swift

func onPieRenderSurfaceRendered(_ renderedMessage: SCIPieChartRenderedMessage)

Parameters


                                    renderedMessage

The rendered message.

-onSegmentCollectionDrasticallyChanged
Called when segments collection drastically changed.
Declaration
Objective-C

- (void)onSegmentCollectionDrasticallyChanged;
Swift

func onSegmentCollectionDrasticallyChanged()


                        
                        
                        -onSegmentsCollectionChanged:

Called when segments collection changes.

Declaration

Objective-C

- (void)onSegmentsCollectionChanged:
    (nonnull SCICollectionChangedEventArgs<id<ISCIPieSegment>> *)args;

Swift

func onSegmentsCollectionChanged(_ args: SCICollectionChangedEventArgs<any ISCIPieSegment>)


                        
                        
                        -onSelectedSegmentsCollectionChanged:

Called when selected segments collection changes.

Declaration

Objective-C

- (void)onSelectedSegmentsCollectionChanged:
    (nonnull SCICollectionChangedEventArgs<id<ISCIPieSegment>> *)args;

Swift

func onSelectedSegmentsCollectionChanged(_ args: SCICollectionChangedEventArgs<any ISCIPieSegment>)