Android Question FusedLocationProvider - 2 tasks

[FrankDev]

hi

im my application i use a progress like it is described in #2
https://www.b4x.com/android/forum/threads/fusedlocationprovider.50614/
(define a position, distance and a timer. (radius 200m, timer is 30 sec)
Get a 'LocationChanged' event-

from another task (second task) i need the actual position.
How to retreive the coordinates without disturbing the other process ?

Sometimes this task (second task) needs the position but the first process is not running and not initialized.

regards Frank

 

[Erel]

Store the location in a process global variable. In the second process you should check whether Location.IsInitialized returns true before you access it.

 

[FrankDev]

hi Erel

thanks for your reply.

This solution works only if one assumes that the person does not move. - Or you accept a tolerance of 400m (in this example, radius = 200m).
As long as the person is not moving from the area - LocationChanged is not triggered. (the global variable is not updated)
If I come from 'Task2' (and read the global variable) I always have position the center (start). but the person could (now) also be at position a or positon b.

 

[Erel]

If you are using B4A v7+ then you can wait for the value to be available:

Do While ValueIsNotAvailable
 Sleep(100)
Loop
'value is available here

 

[FrankDev]

hi Erel,

thanks for your answer.
i use v7+
i'll try

regards Frank