# Part 04 miroslav.binas@tuke.sk / [**SMART**](https://kurzy.kpi.fei.tuke.sk/smart)
## Example: Torch App

Turn On
## [react-native-torch](https://www.npmjs.com/package/react-native-torch)
## Toast ![Android Toast](../images/android.toast.png)
## [ToastAndroid API](https://reactnative.dev/docs/toastandroid)
## Alert ![Alert Dialog](../images/alert.dialog.png)
![Default Application Icon](../images/default.app.icon.png)
![Screen Densities](https://miro.medium.com/max/1240/1*nDCtsXEWZQotmCUQuR8jmQ.png)
## Application Icon ![Application Icon](../images/torch-icon.png)

Pixel Density, Demystified from Peter Nowell on Vimeo.

## Questions?