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The Xamarin.iOS Sunburst Chart, also known as radial tree map, is a data visualization component that visualizes hierarchical data using a concentric circle layout. The innermost circle represents the root level of the hierarchy. Its rich feature set includes functionalities like data binding, legends, animations, data labels, selection, tooltips, and drill-down.

Sunburst levels

Sunburst charts allow you to add more than one hierarchical data level in a levels collection.

Xamarin.iOS Sunburst Chart supports hierarchical levels.

Hierarchical levels

Sunburst charts visualize the levels for a hierarchical data collection that contain tree-structured data.

Xamarin.iOS Sunburst Chart supports radius customization.


The inner and outer radii of a sunburst chart can be customized.

Xamarin.iOS Sunburst Chart supports angle customization.

Angle customization

The start and end angles of a sunburst chart can be customized to any direction to improve readability.

Data labels

Sunburst segments can be easily annotated with labels to help improve the readability of data.

Xamarin.iOS Sunburst Chart supports data label customization.

Label customization

The look and feel of the default labels can be customized using the font style, size, and color properties.

Xamarin.iOS Sunburst Chart supports label overflow.

Label overflow

Handle data overlapping or overflowing out of segments using label trimming or hiding functionalities.

Xamarin.iOS Sunburst Chart supports display mode.

Display mode

Display the data labels in either a normal or rotation direction to enhance readability.


Interactively select and highlight a segment. This is widely used to navigate to another page with the information of a selected segment or to update the information about a selected segment in the same page.

Xamarin.iOS Sunburst Chart supports highlighting by color.

Highlight by color

Segments can be selected or highlighted with color to bring them to the center of attention over other segments.

Xamarin.iOS Sunburst Chart supports highlighting by opacity.

Highlight by opacity

Segments can be selected or highlighted by increasing the transparency of other segments to bring the selection to the center of attention.

Xamarin.iOS Sunburst Chart supports highlighting by stroke.

Highlight by stroke

Segments can be selected or highlighted by strokes to bring them to the center of attention over the other segments.

Xamarin.iOS Sunburst Chart supports selection types.

Selection type

Segments can be selected or highlighted by color to bring them to the center of attention over the other segments. The Sunburst Chart control provides options to highlight a segment as a group of entire node segments, the parent node of the selected segment, the child node of the selected segment, or the selected segment alone.

Xamarin.iOS Sunburst Chart supports customization.


Selected colors and strokes can be customized.


Legends are used to provide valuable information for sunburst segments with various colors, shapes, or other identifiers.

Xamarin.iOS Sunburst Chart supports icon types.

Icon types

The type of legend icon can be changed to built-in shapes such as circles, rectangles, crosses, diamonds, triangles, or pentagons to improve the readability of the chart.

Xamarin.iOS Sunburst Chart supports legend customization.


The positioning of the legend can be customized to anywhere in the chart area and the default legend label font and icon can customized.


Tooltips display a pop-up with additional information when the mouse pointer is touching a data point. A tooltip view can be customized with a data template.

Xamarin.iOS Sunburst Chart supports tooltips.


The Sunburst Chart control provides a drill-down option with animations for visualizing large sets of data in a minimal data view.

Xamarin.iOS Sunburst Chart supports drill down.


  • Xamarin.Forms
  • Xamarin.Android
  • Xamarin.iOS
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