Other Options

Interactivity Settings (interactiveFlags)

Takes an integer bitfield, which can be treated similar to enumerables. For example:

        InteractiveFlag.all & ~InteractiveFlag.rotate

allows/enables all interactions except for rotation (keeping the map at the heading specified by rotation).

The flags below are available:

Use & for 'AND' logic and ~ for 'NOT' logic. Combining these two gates, as shown in the example, can lead to many combinations, each easy to put together.

Defaults to enabling all interactions (all).

Scroll Wheel Settings (enableScrollWheel & scrollWheelVelocity)

Used together to enable scroll wheel scrolling, and set it's sensitivity/speed.

The first parameter takes a bool, enabling or disabling scroll wheel zooming. The second takes a double, which is used as a multiplier for changing the zoom level internally.

        enableScrollWheel: true,
        scrollWheelVelocity: 0.005,

Defaults to true and 0.005.

When Position Changed (onPositionChanged)

Takes a function with two arguments. Gets called whenever the map position is changed, even if it is not changed by the user.

        onPositionChanged: (MapPosition position, bool hasGesture) {
            // Your logic here. `hasGesture` dictates whether the change
            // was due to a user interaction or something else. `position` is
            // the new position of the map.
        }

When Map Tapped (onTap)

Takes a function with one argument. Gets called whenever the the user taps/clicks/presses on the map.

        onTap: (TapPosition position, LatLng location) {
            // Your logic here. `location` dictates the coordinate at which the user tapped.
        }

When Map Ready (onMapReady)

See #usage-in-initstate before using this callback.

This callback can be registered if you need to do something with the map controller as soon as the map is available and initialized; generally though it isn't needed and the map is available after first build.

Takes a function with zero arguments. Gets called from the initState() method of the FlutterMap.