Location

[Ezra Epriputra]

Haii Team AI2 App Inventor...

Thanks berfore for reading my questiona...

lately i made some test with location...

i use emulator...and the longitude and latitude is work very nice...

but when i baking it into apps...the latitude and longitude always 0

i tried to enable location service on my mobile phone for that apps but still cant work...

i use Xiaomi mi 8

[Ghica]

Next time you post blocks, please click with your right mouse button on an empty space and choose download blocks as image. Upload that image.

Then, you must make sure that location sensing is enabled on your phone and you must wait for it to become active. From the documentation:

In order to function, the component must have its Enabled property set to True, and the device must have location sensing enabled through wireless networks or GPS satellites (if outdoors).

Location information might not be immediately available when an app starts. You'll have to wait a short time for a location provider to be found and used, or wait for the OnLocationChanged event

Cheers, Ghica.

[SteveJG]

The code you have in your  'procedure' is entirely incorrect.Ezra.  You are attempting to create a 'ringed fence' ... there are several issues, among them are the values you set for latitude/longitude.  Where are the decimal points?  The correct way to create a ringed fence is described here

• Chapter 18. Programming Your App to Make Decisions   
• in the section called Programming Complex Conditions.  It shows how to construct a ringed fence to determine when a particular location is reached. Also read this article to ensure you use reasonable values https://groups.google.com/forum/#!searchin/mitappinventortest/ring$20fence%7Csort:relevance/mitappinventortest/L_Sxt-IcoMg/O4MiubICK0AJ    and for a link to a discussion for Halt Alarm which uses a different technique to determine whether an Android is close or has reached a particular latitude/longitude location.
• You keep getting a 0,0 latitude longitude display because your indexlatitude/longitude are never initialized.

If you run into problems, return here and show us what you tried and you will get specific advice after you correct your procedure.   Also, please rename you Procedure, using the default will cause compiling issues...change it to MyProcedure or RingedFence or something.

Regards,

Steve