---
title: "open | Mobile sdk | Mobile sdk android | Android"
description: "open"
---

# open

fun [open](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.annotations/-m-t-text-popup/open/)(mapViewController: [MTMapViewController](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map/-m-t-map-view-controller/))

Opens the popup on the map.