kept application active despite the screen off

[Ludovic_garnung]

Hello,

A big thank you to MIT APP Inventor without whom I would not have been able to achieve this small personal project.

I created a GPS tracking application because I will be leaving for a year with my camper van. I'll be using an old, permanently plugged-in phone for this tracker. The tracker will allow me to, I hope, find my vehicle if it is stolen. It will also allow my family to know where I am live. Finally, I would have the layout of my entire journey through Europe and America.

To do this, the application sends the GPS coordinates to a MySql database with the GET method and a bit of PHP. The sending is done at regular intervals configurable in the app (60 seconds by default).

Everything works fine ... except when the screen is off. There the sending is no longer done at regular intervals. Where the sending must be done every 10s for the test, there is a send after several minutes.

Is it possible, that screen off, the sending interval is not disturbed ??

I have lifted the data and battery consumption restrictions for the app.

Thank you for your help

[Taifun]

for this purpose there exists an extension you might want to use...

[PAID] Location Service Extension

Description This extension is able to run in the background while your app is closed and stores location data (latitude, longitude and optionally current datetime, altitude, accuracy, speed, current address and provider) in TinyDB. Also a background web functionality is available which can be used to send the location data in the background to a web service of your choice using a web request. This could be used for example to store the location data in a MySQL database or to send an email afte…

alternatively you will have to keep the screen on to keep the application alive...
one method to do this is to use the KeepScreenOn method from the tools extension
App Inventor Extensions: Tools | Pura Vida Apps but this will drain the battery faster...

Taifun

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Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.

[Anke]

@Ludovic_garnung

Everything works fine ... except when the screen is off.

If the device falls into Doze mode, all possible functions (CPU, WiFi / Network connection, GPS, timer, ...) are throttled / shut down. To prevent Doze, a Foreground service is required.

[Ludovic_garnung]

Ok thank you. I will use keepscreenon so :).

Have fun

[ouni]

did you find a solution for your problem

[gordonlu310]

@ouni

did you find a solution

Read posts #2 to #4!

[ouni]

@gordonlu310

Read posts #2 to #4!

I did not understand

[TIMAI2]

@ouni

not understand

As I told you in your other topic:

https://community-appinventor-mit-edu.ezproxy.canberra.edu.au/t/storage-data-using-app-inventor/55091/5

If using the Background Tasks extension does not work for you, then you will need to run your app with screen on all the time, or as a foreground service. There are, to my knowledge, no available extensions to allow you to do this.

That said, see here:

Check if the device is in idle / sleep mode (screen off)

With this extension you can check if a device is in sleep / idle mode (screen off). de.bodymindpower.IdleMode.aix (4.9 KB) [grafik] Example blocks:

Also, please stop necro-posting every topic you can find about running in the background.

[Kevin_Peters]

@TIMAI2 Why not necro post... if the answers to a question are not satisfactory then why not ?

Sometimes it is best to find out how to do something rather than rely on another extension.

I have exactly the same problem as @Ludovic_garnung and I prefer my own solutions. I found this post not too helpful and will have to search further.

[Taifun]

@Kevin_Peters

I have exactly the same problem as @Ludovic_garnung and I prefer my own solutions.

the answers are in post #2 and #3

kept application active despite the screen off

for this purpose there exists an extension you might want to use... alternatively you will have to keep the screen on to keep the application alive... one method to do this is to use the KeepScreenOn method from the tools extension App Inventor Extensions: Tools | Pura Vida Apps but this will drain the battery faster... Taifun Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by [icon24] Taifun.

kept application active despite the screen off

If the device falls into Doze mode, all possible functions (CPU, WiFi / Network connection, GPS, timer, ...) are throttled / shut down. To prevent Doze, a Foreground service is required.

please elaborate, why these answers are not satisfactory in your case
Taifun

[AyProductions]

@Kevin_Peters

@TIMAI2 Why not necro post...

It is an etiquette, we didn't create such rules...

Create a new post instead, and if the moderatos have to merge it to old topic, then in that specific topic only you can necropost.

@Kevin_Peters

and I prefer my own solutions.

so what is your expectation for a solution?
If you can figure out your own solution, then why not post it here for others to learn? there would be no need for an extension.
and if we already figured out a solution, we would have made a guide about it ages ago ...