Please help me in this project (track a bus location and show it on a Map)

[SteveJG]

@Aryan_Agrawal

I am supposed to be constantly sending location from one screen typically accessed by drivers and then Should display it on a map on a screen typically accessed by the parents. I have been trying but its not happening.

Uh oh. An app like this

• is made using a common map screen. You use an ActivityStarter to provide a map. Using an AS Google map ordinarily is a good idea. When you switch screens, it is not. I would use the Map component. Can the AS map be used successfully like you are trying? Sorry, I don't know, never tried.

• constantly sending a location is possible provided what you mean by constantly. The LocationSensor/gps requires somewhere between 20 to 30 seconds to achieve a satellite fix to determine where the Android is located. Update more frequently and you will have issues; especially because you are using the CloudDB and it takes time to update the shared database . Your app is presently using a TimeInterval of 10000 ms (10 seconds); entirely impractical and doomed to failure. Try 30000 ms.

• an alternative to using a CloudDB is to use a Web component with a Google sheet. Is it better? In some ways but certainly is more difficult to code.

• if your goal is to track the whereabouts of the bus, this app can be very simple. If you attempt to track the whereabouts of individual students, it becomes a complex exercise.

I'll look to see of I can find an example showing a simple way to show a 'common' map using the CloudDB. It might take a while. I will try to post something in the next few hours.

The following examples do some things similar to what you seem to want to do. Both of them use a single Screen.

This example shows how to use the Map component and the LocationSensor to display a map.

How to put my location on a map

This is as simple as it gets using the MIT Map Component and the LocationSensor together. [MITMapyourLocation] Place a Map component, a LocationSensor component, have your device’s Location Setting to on. Create these Blocks and a map will display showing your location. You need to do this on a real device. For more help see Map components You may have to wait up to a minute after you load the app to see the display while waiting for the GPS receiver to get a satellite fix (so it knows whe…

This example uses a locationsensor, map and CloudDB

Social Distancing ... a CloudDB / Location Marker Tutorial

Social Distancing ... a CloudDB / Location Marker Tutorial The Project Determine how close an individual you share an app with is to you. You use a CloudDB, LocationSensor/GPS receiver, Map component, design time Markers and a StayAwake routine. Sound an alarm when someone comes too close or just have fun with the app to keep track of your family circle's whereabouts. Observe where everyone is on a Map. The app continually updates and calculates distance separation. The Social Distancing s…

Hope you make your deadline.

Here is an excellet tutorial by Romin showing how to work with bus routes using FirebaseDB.
https://rominirani.com/tutorial-mit-app-inventor-firebase-4be95051c325 It can be duplicated for use in a CloudDB by substituting the Firebase control blocks with the CloudDB comparable blocks

Regards,
Steve