The Map component lets you show an area of a Google map to the user. You can add markers, polylines, and polygons to this map.
Properties
Add Google Maps API Key
You can add your own Google Maps API Key to your Thunkable project. This is not necessary to show a map in your app.
Simply click on your project name to open the Project Settings menu, and scroll down to the Google Map Settings section. You will see the option to enter a Google Maps API Key for Android and iOS.
Co-ordinate of the map's center on the north-south axis
Number
Longitude
Co-ordinate of the map's center on the east-west axis
Number
Zoom
Zoom level between -15 (most zoomed out) and 15 (most zoomed in)
Number
Layout
Property
Description
Data Type
X
Location of top left corner of Map on X-axis, where the left hand side is X=0
Number
Y
Location of top left corner of Map on Y-axis, where the top side is Y=0
Number
Height
Height of Map in pixels
Number
Width
Width of Map in pixels
Number
Visible
Set whether the Map is visible
True/False
Style
Property
Description
Data Type
Border Width
Width of border around Map in pixels
Number
Border Radius
Radius of corners of border on Mapr in degrees
Number
Border Color
Color of border (only visible if border width > 0)
Color
Border Style
Set whether border style is solid, dotted or dashed (only visible if border width > 0)
Select from menu
Blocks
Events
The map has several events. You can trigger actions to happen when these events occur.
On Map Ready
This event happens when the Map has loaded in your app.
This is a good time to add any markers, polylines or polygons to your app that you want the user to see as soon as your app opens.
On User Location Change
This event happens when the location of the user changes. It returns the coordinate object.
You can use object blocks to get the properties of the coordinate object.
The coordinate object has the following properties:
{
target: Numeric ID for your app
coordinate:{
latitude: latitude of point selected
longitude: longitude of point selected
}
position:{
x: x-position of selected point on the Map component
y: x-position of selected point on the Map component
}
}
On Press
This event happens when the user taps on the Map.
Output name
Output value
Data Type
Latitude
Latitude of selected position
Number
Longitude
Longitude of selected position
Number
position X
X Co-ordinate of selected position on map component
Number
position Y
Y Co-ordinate of selected position on map component
Number
On Long Press
This event happens when the user presses on the map for a longer period of time.
Output name
Output value
Data Type
Latitude
Latitude of selected position
Number
Longitude
Longitude of selected position
Number
position X
X Co-ordinate of selected position on map component
Number
position Y
Y Co-ordinate of selected position on map component
Number
On Marker Press
This event happens when the user clicks on a Marker that is on the Map.
The On Marker Press block returns an event object. This is an object which can be used with object blocks.
The event object has the following properties:
{
latitude: latitude of the selected Marker
longitude: longitude of the selected Marker
}
Functions
Add Marker
Add a marker to your map at the specified latitude/longitude.
Add Polyline
Add a polyline to your map. This is an outline that connects several points on your map.
This block takes the following inputs:
Input
Description
Data Type
Coordinate
List of points to draw a line between. List can be any length.
List of objects. Each object must have the properties latitude and longitude. Latitude and Longitude must be numbers.
Stroke Width
Width of polyline
Number
Stroke Color
Color of polyline
Color
These blocks:
Will produce this polyline:
Note that polylines won't automatically create a closed shape. You would need to add a forth object with the properties latitude: 37 and longitude: -122 to the coordinate input of the addPolyline block above to close this triangular polyline.
Add Polygon
Add a polygon to your map. This is a solid shape that connects several points on your map.
This block takes the following inputs:
Input
Description
Data Type
Coordinate
List of points to draw a line between. List can be any length.
List of objects. Each object must have the properties latitude and longitude. Latitude and Longitude must be numbers.
Stroke Width
Width of outline
Number
Stroke Color
Color of outline (Only visible if Stroke Width > 0)
Color
Fill Color
Color of polygon shape
Color
These blocks:
Will produce this polygon:
Note that the polygon outline will automatically connect the first and last points in the list of coordinates.
Delete Markers, Polylines and Polygons
You can use the deleteAllMarkers block to delete all markers from your app.
You can use the deleteAllPolylines block to delete all polylines from your app.
You can use the deleteAllPolygons block to delete all polygons from your app.