ORKIBPieChartViewDataSource Class Reference

Inherits from NSObject
Conforms to ORKPieChartViewDataSource
Declared in ORKPieChartView.m

– numberOfSegmentsInPieChartView:

Asks the data source for the number of segments in the pie chart view.

- (NSInteger)numberOfSegmentsInPieChartView:(ORKPieChartView *)pieChartView

Parameters

pieChartView

The pie chart view asking for the number of segments.

Return Value

The number of segments in the pie chart view.

Declared In

ORKPieChartView.h

– pieChartView:valueForSegmentAtIndex:

Asks the data source for the value of a segment in the pie chart view.

- (CGFloat)pieChartView:(ORKPieChartView *)pieChartView valueForSegmentAtIndex:(NSInteger)index

Parameters

pieChartView

The pie chart view asking for the value of the segment.

index

An index number specifying the segment in the pie chart view.

Return Value

The value of the segment at the specified index in the pie chart view.

Discussion

The value can be any arbitrary integer: the pie chart view normalizes them by the sum of all returned values.

Declared In

ORKPieChartView.h

– pieChartView:colorForSegmentAtIndex:

Asks the data source for the color of a segment in the pie chart view.

- (UIColor *)pieChartView:(ORKPieChartView *)pieChartView colorForSegmentAtIndex:(NSInteger)index

Parameters

pieChartView

The pie chart view asking for the color of the segment.

index

An index number specifying the segment in the pie chart view.

Return Value

The color of the segment at the specified index in the pie chart view.

Discussion

If this method is not implemented, the pie chart view uses a unique shade of the current tint color for each segment.

Declared In

ORKPieChartView.h

– pieChartView:titleForSegmentAtIndex:

Asks the data source for the title to appear in the legend for a segment in the pie chart view.

- (NSString *)pieChartView:(ORKPieChartView *)pieChartView titleForSegmentAtIndex:(NSInteger)index

Parameters

pieChartView

The pie chart view asking for the title.

index

An index number specifying the segment in the pie chart view.

Return Value

The title of the segment at the specified index in the pie chat view’s legend.

Discussion

If this method is not implemented, the pie chart view does not display the legend.

Declared In

ORKPieChartView.h