Map Component

Overview

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 live-test your app without adding your unique Google Maps API keys, but you need to add them if you want to download or publish your app.

Generate a Google Maps API Key

To generate your personal Google Maps API key, you need to:

1. Create a Google Cloud project for your app.

2. Create a billing account or enable billing for the project.

3. Click Enable to enable the Maps SDK for Android or Maps SDK for iOS.

4. Select Enable all Google Maps APIs for this project.
5. Copy the provided API key.

Note: If you close this pop pup message without copying your API key

1. Navigate to APIs & Services.

2. Select Credentials from the left side menu.

3. Click SHOW KEY.

   

For more detailed instructions, please see here: Google Maps Platform: Set up your Google Cloud project.

Add Google Maps API Key to Thunkable

Once you've generated your Google Maps API keys, you can add them to your Thunkable project. Click the gear icon on the left of your project's designer tab to access your Project Settings. Scroll to the Google Map Settings section and paste your Android and iOS API keys into the corresponding fields.

Map

Property	Description	Data Type
Latitude	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

Advanced Properties

Property	Description	Data Type
Provider	Map provider (ex. Google).	Text
Map Type	Style of map.	Select from list (standard, satellite, hybrid, terrain, none)
User location	Show the user where they are on the map.	True/False
My location button	Show button that allows the user to re-center the map on their location.	True/False
Compass	Show compass.	True/False
Scroll	Allow user to scroll on the map.	True/False
Zoom	Allow user to zoom in and out on the map.	True/False
Traffic	Show traffic data.	True/False

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
Resize Mode	Define dimensions of the map component/container	Select from list [Stretch, Float in Place]

Style

Property	Description	Data Type
Visible	Toggle whether your end users can see the Map	True/False
Border Style	Set whether border style is solid, dotted or dashed (only visible if border width > 0)	Select from list [solid, dotted, dashed]
Border Color	Color of border (only visible if border width > 0)	Color
Border Width	Width of border around Map in pixels	Number
Border Radius	Radius of corners of border on Map in degrees	Number
Shadow Color	Color of map's shadow	Color
Shadow Opacity	Opacity of map's shadow	Number between 0 and 100
Shadow Radius	Radius of corners of map's shadow in pixels	Number
Shadow Offset	How far map's shadow should be offset, in Height and Width, in pixels	Number

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.

Add GeoJSON

GeoJSON is a format for encoding geographical data structures that is based on the JSON (JavaScript Object Notation) format. It is a lightweight and versatile format that is widely used for storing and exchanging spatial data. GeoJSON provides you with a simple and flexible way to add geographic data to your Google Maps app, making it easy to create engaging and informative map-based applications.

Incorporating GeoJSON in your Thunkable Map component allows you to draw lines, shapes (rectangles, triangles, squares, and custom shapes), and markers on the map.

We do not currently support adding GeoJSON tooltips or callouts.

To use the Add GeoJSON block:

1. On the Design tab of your Thunkable project, add a map component to a screen.

2. On the Blocks tab, within the component tree, click the Map component.

3. Drag and drop the Add GeoJSON block into your workspace.

4. Click Text.

5. Drag the empty text block and connect it to the Add GeoJSON block.

6. Paste your GeoJSON data into the empty text block. This can be retrieved from a website such as GeoJSON.io.

7. Drag and drop the Add GeoJSON block into an event block. For example, the onMapReady block to render the GeoJSON when the map loads, or the when button click block to render the GeoJSON when the user clicks a button.

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

Adds a generic map marker to your map at the specified latitude/longitude.

This block takes the following inputs:

Input	Description	Data Type
Latitude	Latitude of marker's position	Number between -90 and 90
Longitude	Longitude of marker's position	Number between -90 and 90
Title	Title of marker (displayed when marker is clicked)	Text
Description	Description of marker (displayed when marker is clicked)	Text
Pin Color	Color of marker	Color

Add GeoJSON

Add Icon Marker

Adds a marker of a selected image to your map at the specified latitude/longitude

This block takes the following inputs:

Input	Description	Data Type
Latitude	Latitude of marker's position	Number between -90 and 90
Longitude	Longitude of marker's position	Number between -90 and 90
Title	Title of marker (displayed when marker is clicked)	Text
Description	Description of marker (displayed when marker is clicked)	Text
Icon	Image to use as marker	Dropdown menu (select asset)

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.

Properties

Set and get properties of the Map component.

Latitude

Longitude

Zoom

Computed Height

Returns the height of the Map on the device screen in pixels.

Computed Width

Returns the width of the Map on the device screen in pixels.

Visible

See Also

You can pair the Map component with a Location Sensor. This helps you show content relevant to the user's location.

These blocks will set the map's latitude and longitude to show the user's location once the map is ready: