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LocationManager Library
- Thread starter XverhelstX
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LocationManager updated to 1.1!
A small update with some new features.
Some methods have been changed.
You can now easily retrieve your coordinates from your gps without the need of the GPS library.
I got my latitude, longitude, altitude, etc in less than 15 seconds.
Tomas
A small update with some new features.
Some methods have been changed.
You can now easily retrieve your coordinates from your gps without the need of the GPS library.
I got my latitude, longitude, altitude, etc in less than 15 seconds.
Tomas
How to use in combination with GPS
Hi,
Is the Location_LocationChanged an event in case of GPS or CellID?
So if I change location physically does it call Location_LocationChanged?
And how does this work together with my normal GPS service? I use a background service to track with GPS.
Please some answers.
Hi,
Is the Location_LocationChanged an event in case of GPS or CellID?
So if I change location physically does it call Location_LocationChanged?
And how does this work together with my normal GPS service? I use a background service to track with GPS.
Please some answers.
Hi Tomas,
this library is missing on the wiki page with the additional libraries.
Another thing is that in your libraries (at least this one and PhoneStateListener too) you don't add the @Events annotation to your source. Look at Erels post how this should be done.
If you add the @Events annotation to your libraries it would be possible to use autocompletion for event subs in the IDE.
Edit: Just one more thing. This library adds android.permission.INTERNET. Is this really necessary. I don't think so.
this library is missing on the wiki page with the additional libraries.
Another thing is that in your libraries (at least this one and PhoneStateListener too) you don't add the @Events annotation to your source. Look at Erels post how this should be done.
If you add the @Events annotation to your libraries it would be possible to use autocompletion for event subs in the IDE.
Edit: Just one more thing. This library adds android.permission.INTERNET. Is this really necessary. I don't think so.
Last edited:
Just for ref: very needed a static status value, like GPSListening, MobileListening as boolean...
And status of the system mobile navigation permission.
And status of the system mobile navigation permission.
As you could read in the first post http://www.b4x.com/forum/additional.../13337-locationmanager-library.html#post75151
This library only use GSM network (phones) to determine cell location!
If on devices without that, try using this (I didn't use it): http://www.b4x.com/forum/additional...-updates/14266-mock-locationprovider-lib.html
This library only use GSM network (phones) to determine cell location!
If on devices without that, try using this (I didn't use it): http://www.b4x.com/forum/additional...-updates/14266-mock-locationprovider-lib.html
Last edited:
Can´t stop Location-Listener
How can i stop the MobileListening?
In my App i have a Preference Value FindCell as Boolean.
In Activity_Resume i Check this Boolean.
If i set this Value to False in Prefs-Screen and go back to Main-Activity, the Location-Listener is still looking for my location, It does not stop. Because, i the the Toastmessage again and again and again...
If i Exit my App and start it again with the Last Setting of FindCell (to False)
The Listener ist stopped.
How can I stop the listener without terminating my app?
How can i stop the MobileListening?
In my App i have a Preference Value FindCell as Boolean.
In Activity_Resume i Check this Boolean.
B4X:
Sub Activity_Resume
Prefs_HandleSettings
Location.requestMobileLocation
If prefsmanager.GetBoolean("FindCell") = False Then
Location.stopMobileListening
End If
End SubIf i set this Value to False in Prefs-Screen and go back to Main-Activity, the Location-Listener is still looking for my location, It does not stop. Because, i the the Toastmessage again and again and again...
If i Exit my App and start it again with the Last Setting of FindCell (to False)
The Listener ist stopped.
How can I stop the listener without terminating my app?
slept one night on it and my problem is solved
Now i use the following code in Activity-Create / Activity-Resume
This works perfect for me.
Now i use the following code in Activity-Create / Activity-Resume
B4X:
Sub Activity_Create(FirstTime As Boolean)
Location.Initialize("Location")
Location.requestMobileLocation 'normally this entry is only in Activity_Resume
End Sub
Sub Activity_Resume
Prefs_HandleSettings
If prefsmanager.GetBoolean("FindCell") = False Then
Location.stopMobileListening
Else
Location.requestMobileLocation
End If
End SubThis works perfect for me.
Hi,
I've a problem, I tried your example and the only thing I can do is selecting "Update Location" or "Stop Listening" from the menu.
When I choose "Update Location" the GPS begins to do its job, but it stays there, never returns anything, I'm trapped at the black screen.
BUT, I'm not moving, I'm expecting it returns something like the GPS programs I've installed (Like Waze) which shows a Map with the point where I'm at (I never turn off hardware GPS)
Can anyone help me?
Thanks a lot!
James
I've a problem, I tried your example and the only thing I can do is selecting "Update Location" or "Stop Listening" from the menu.
When I choose "Update Location" the GPS begins to do its job, but it stays there, never returns anything, I'm trapped at the black screen.
BUT, I'm not moving, I'm expecting it returns something like the GPS programs I've installed (Like Waze) which shows a Map with the point where I'm at (I never turn off hardware GPS)
Can anyone help me?
Thanks a lot!
James
I hope i understand you right.
I found out, that the locationmanager looks ca. every 30 seconds for a new location.
if you want to store your location, you have to save it in a variable.
I do this in the Sub Location_LocationChanged
This library doesn´t do anything other. it only found your location.
if you want to show your location in google-maps or something, you have to write another sub´s or build activity´s to do that.
I hope you understand what i mean.
e.g. Variable FinCell is now prefs_gps_on
In this Sub, the Location.stopMobileListening doesn´t really terminate the Locationmanager, it only stops for searching.
But it doesn´t store my location in my preferences.
That´s enough for me, because i build a html-file with the location-coordinates and send it to my ftp-server.
And if i dont want, that anyone can look my location, i can disable this function in my preferences.
I found out, that the locationmanager looks ca. every 30 seconds for a new location.
if you want to store your location, you have to save it in a variable.
I do this in the Sub Location_LocationChanged
This library doesn´t do anything other. it only found your location.
if you want to show your location in google-maps or something, you have to write another sub´s or build activity´s to do that.
I hope you understand what i mean.
e.g. Variable FinCell is now prefs_gps_on
B4X:
Sub Location_LocationChanged (Longitude As Double, Latitude As Double, Altitude As Double, Accuracy As Float, Bearing As Float, Provider As String, Speed As Float, Time As Long)
' ToastMessageShow("Lat: " & Latitude & " - Long: " & Longitude, True)
If prefsmanager.GetBoolean("prefs_gps_on") = True Then
gps1_img.Bitmap = LoadBitmap(File.DirAssets,"gps_found.png")
DoEvents
If prefsmanager.GetBoolean("prefs_gps_snd") = True Then
Play_Beep("gps_found", 6)
End If
prefsmanager.SetString("prefs_gps_pos", Latitude & "," & Longitude)
gps1_img.Bitmap = LoadBitmap(File.DirAssets,"gps_on.png")
End If
End SubIn this Sub, the Location.stopMobileListening doesn´t really terminate the Locationmanager, it only stops for searching.
But it doesn´t store my location in my preferences.
B4X:
Sub Activity_Resume
Prefs_HandleSettings
If prefsmanager.GetBoolean("prefs_gps_on") = False Then
Location.stopMobileListening
prefsmanager.SetString("prefs_gps_pos", "0,0")
Else
Location.requestMobileLocation
End If
End SubThat´s enough for me, because i build a html-file with the location-coordinates and send it to my ftp-server.
And if i dont want, that anyone can look my location, i can disable this function in my preferences.
Last edited:
Hi! Thanks for your answer, but I think I didn't explain fine myself 
And I didn't understand the problem correctly.
At first I thought it was not working because I didn't receive any data and I also thought it could be because I was inside my room and not moving (meaning, no new location)
But today I did some testings, and it seems my room is made of lead or something, GPS data can't be received.
So, now my problem is... Can I get the last GPS position where the phone was?
Mmmm... Now I know I can save last position, but is there any way to know it even before the user run my app for the first time?
Thanks a lot
And I didn't understand the problem correctly.At first I thought it was not working because I didn't receive any data and I also thought it could be because I was inside my room and not moving (meaning, no new location)
But today I did some testings, and it seems my room is made of lead or something, GPS data can't be received.
So, now my problem is... Can I get the last GPS position where the phone was?
Mmmm... Now I know I can save last position, but is there any way to know it even before the user run my app for the first time?
Thanks a lot
Last edited:
Hi Catom,
I am in the process of creating a modified version of this library, it will add another function that uses the 'getLastKnownLocation' from all available providers (gps, network & passive) and returns their position, time & accuracy. I have this portion working. I am also trying to add a function whereby you will be notified when you are within range of a given location via pendingIntent.
I am in the process of creating a modified version of this library, it will add another function that uses the 'getLastKnownLocation' from all available providers (gps, network & passive) and returns their position, time & accuracy. I have this portion working. I am also trying to add a function whereby you will be notified when you are within range of a given location via pendingIntent.
Hi Air,
I think the problem with stopping LocationListener is in your code, if you have already started the LocationListener then there is no need to start it again in Activity_Resume as this stacks up another listener so that when you StopListener it only stops one of them. If you run the sample app in post #1 start the mobileListener put you app into the background wait a moment then relaunch the app you will still get the mobile position updates, select stopListener and you will not get anymore updates. You may have to use some sort of indicator in Activity_Create using if Firsttime.
I think the problem with stopping LocationListener is in your code, if you have already started the LocationListener then there is no need to start it again in Activity_Resume as this stacks up another listener so that when you StopListener it only stops one of them. If you run the sample app in post #1 start the mobileListener put you app into the background wait a moment then relaunch the app you will still get the mobile position updates, select stopListener and you will not get anymore updates. You may have to use some sort of indicator in Activity_Create using if Firsttime.
I am getting "Location Disabled" as my response, is that because I am on an XT network?
I'm getting an error (on b4a 2.71) when I click on "Stop Listening":
I am also not getting any position update, just the Msgbox("Provider","Provider Disabled") showing. I am using an HTC desire Android 2.2.
What am I doing wrong? I just ran the example
B4X:
LocationManager has been initialized.
** Activity (main) Resume **
LocationManager1stopGPSListening (B4A line: 45)
lm.stopGPSListening
java.lang.IllegalArgumentException: listener==null
at android.location.LocationManager.removeUpdates(LocationManager.java:804)
at com.rootsoft.locationmanager.LocationManager1.stopGPSListening(LocationManager1.java:141)
at com.rootsoft.locationmanager.main._mnustoplistening_click(main.java:445)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:153)
at com.rootsoft.locationmanager.main$B4AMenuItemsClickListener.onMenuItemClick(main.java:142)
at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:152)
at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:855)
at com.android.internal.view.menu.IconMenuView.invokeItem(IconMenuView.java:545)
at com.android.internal.view.menu.IconMenuItemView.performClick(IconMenuItemView.java:122)
at android.view.View$PerformClick.run(View.java:8817)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:144)
at android.app.ActivityThread.main(ActivityThread.java:4937)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
java.lang.IllegalArgumentException: listener==nullI am also not getting any position update, just the Msgbox("Provider","Provider Disabled") showing. I am using an HTC desire Android 2.2.
What am I doing wrong? I just ran the example