---
title: reloadData()
framework: mapkit
role: symbol
role_heading: Instance Method
path: mapkit/mktileoverlayrenderer/reloaddata()
---

# reloadData()

Forces the tile overlay renderer to reload and redisplay the tiles.

## Declaration

```swift
func reloadData()
```

## Discussion

Discussion Use this method to remove the overlay’s existing tile images and reload them from the original source. This method automatically causes the renderer to redraw the new tiles as soon as it loads them into memory.