This sample demonstrates how to override and reset a renderer of a feature layer. Simply use the override button to set a new renderer and the reset button to reset the original renderer.
How it works
Each AGSFeatureLayer object has a default render as supplied by the feature service. You can override this renderer by creating a new renderer (AGSRender) and setting the render property on the feature layer. If you wish to reset the renderer to the feature service's original renderer then call the method resetRenderer.