LabelLargest

If a feature consists of multiple parts, only the largest one will be assigned a label. If a line feature consists of multiple part geometries, or a polygon feature consists of multiple ring geometries, only the largest one will be assigned a label.

If the largest part of the feature is not currently visible on the com.arcgismaps.mapping.view.MapView or com.arcgismaps.mapping.view.SceneView, then the label will not be visible. It will not automatically move to the largest visible part.