Use MarkerViews in search and bottom sheet.

Currently markers are lazy-loaded, but clustering seems to perform better.

• It can be optional (a switch setting between the current behavior and clustering can be provided)
• Clustering may be applied only to rooms, while other types of markers can use fade animation
• If a cluster only includes rooms from a single block (which have the same prefix) it can display this prefix (for example, if a cluster consist of rooms 2212, 2213, 2209 it may look like 22xx) -- this would require encoding marker blocks in their IDs

Improve marker search results ranking to weight text fields differently: results whose title matches the query should be ranked higher than the ones whose location or description matches. E.g. use Okapi BM25F as a ranker instead of BM25F.

If padding of a map is too low, the following problems arise:

1. Centering on some markers close to the border doesn't really place them in the center of the screen.
2. Search button at the top of the screen may cover parts of the map close to the top border.

The first problem may be solved by playing some animation attracting attention to the marker that was centered.

The second one may be solved by adding functionality to hide the UI.

Markers that have a description should be somehow highlighted on the map

Reload marker texts from database when system language changes.

Add search history

Некоторые обозначения интуитивно непонятны, например звездочки и стрелочки вверх. Было бы удобнее иметь легенду карты.

Currently GUI theme is determined solely on the system's theme. Add an option to pick GUI theme from the app itself.

Software keyboard state (shown / hidden) in search screen should be retained across screen rotations

Mathematics and Mechanics Faculty at SPbU is divided into several parts, which is reflected in room names. It could be also reflected on the map somehow to help students get used to the internal organization of the faculty.

After a user finds a marker via search activity, bottom sheet needs to be displayed along with centering on the marker.

UI components like Icons have mandatory contentDescription parameters which should be localized

Zoom acts weird when map is zoomed out: it first centers the map and only then zooms into the desired point.

It is more of a MapCompose issue.

When the map is zoom-out so that markers are invisible, show a small hint to help a user understand that he needs to zoom in to see the markers.

Add floating action button opening a menu of checkboxes using which a user would be able to pick only the markers they want to see. The categories to choose from are:

• Entrances
• Rooms
• Stairs and elevators
• Restrooms
• Other
• Closed

When a user scales out and more map area becomes visible, room markers become very distracting covering most of the screen area.

• Hide all unhighlighted markers when not zoomed in
• Keep only highlighted marker when one is present

Google and other popular map apps have this double tap + slide zooming gesture: "One finger zooming by double tapping but not releasing on the second tap, and then sliding the finger up to zoom out, or down to zoom in" -- would be nice to also have this here.

Each marker can contain a field for adding notes.

Current Mathematics and Mechanics Faculty, SPbU map has several issues:

• Wrong building shape in a few places
• Missing elevators
• Missing scheme of the first floor of computational center

Currently marker search results appear to be strangely ordered, so some sorting needs to be added