Android Question my location camera position

[jchal]

i try the following code and i need some help b4a versio 6.8

Dim cp As CameraPosition
    cp.Initialize(gmap.MyLocation.Latitude, gmap.MyLocation.Longitude, gmap.CameraPosition.Zoom)
    gmap.AnimateCamera(cp)

but i get the following error

Logger connected to: samsung GT-I9060
--------- beginning of /dev/log/main
Copying updated assets files (1)
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Error occurred on line: 35 (Main)
java.lang.RuntimeException: Object should first be initialized (GoogleMap).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
at anywheresoftware.b4a.objects.MapFragmentWrapper$GoogleMapWrapper.getMyLocation(MapFragmentWrapper.java:321)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at b4a.example.main.afterFirstLayout(main.java:102)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5319)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
** Activity (main) Resume **
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Error occurred on line: 35 (Main)
java.lang.RuntimeException: Object should first be initialized (GoogleMap).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
at anywheresoftware.b4a.objects.MapFragmentWrapper$GoogleMapWrapper.getMyLocation(MapFragmentWrapper.java:321)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at b4a.example.main.afterFirstLayout(main.java:102)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5319)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
** Activity (main) Resume **
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Error occurred on line: 35 (Main)
java.lang.RuntimeException: Object should first be initialized (GoogleMap).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
at anywheresoftware.b4a.objects.MapFragmentWrapper$GoogleMapWrapper.getMyLocation(MapFragmentWrapper.java:321)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at b4a.example.main.afterFirstLayout(main.java:102)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5319)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
** Activity (main) Resume **
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Error occurred on line: 35 (Main)
java.lang.RuntimeException: Object should first be initialized (GoogleMap).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
at anywheresoftware.b4a.objects.MapFragmentWrapper$GoogleMapWrapper.getMyLocation(MapFragmentWrapper.java:321)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at b4a.example.main.afterFirstLayout(main.java:102)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5319)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
** Activity (main) Resume **
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Error occurred on line: 35 (Main)
java.lang.RuntimeException: Object should first be initialized (GoogleMap).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
at anywheresoftware.b4a.objects.MapFragmentWrapper$GoogleMapWrapper.getMyLocation(MapFragmentWrapper.java:321)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at b4a.example.main.afterFirstLayout(main.java:102)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5319)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
** Activity (main) Resume **
Copying updated assets files (1)
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
--------- beginning of /dev/log/system
Error occurred on line: 45 (Main)
java.lang.RuntimeException: Object should first be initialized (LatLng).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
at anywheresoftware.b4a.objects.MapFragmentWrapper$LatLngWrapper.getLatitude(MapFragmentWrapper.java:391)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at anywheresoftware.b4a.BA$1.run(BA.java:303)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5319)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)

 

[DonManfred]

1. Use Quote-Tag when posting logs!
2. Upload your project. Looks like you did not correctly added the GoogleMaps. Or you are trying to use gmap before the Map is ready?

 

[jchal]

here it is

#Region  Project Attributes
   #ApplicationLabel: GOOGLEMAPS Example
   #VersionCode: 1
   #VersionName:
   'SupportedOrientations possible values: unspecified, landscape or portrait.
   #SupportedOrientations: unspecified
   #CanInstallToExternalStorage: False
    #AdditionalJar: com.google.android.gms:play-services-maps

#End Region

#Region  Activity Attributes
   #FullScreen: False
   #IncludeTitle: True
#End Region

'Activity module
Sub Process_Globals

End Sub

Sub Globals
    Private gmap As GoogleMap
    Private MapFragment1 As MapFragment
  
  
    Private Panel1 As Panel
End Sub

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("1")
    If MapFragment1.IsGooglePlayServicesAvailable = False Then
        ToastMessageShow("Please install Google Play Services.", True)
    End If
  
    End Sub
  


Sub MapFragment1_Ready
    gmap = MapFragment1.GetMap
    Dim m1 As Marker = gmap.AddMarker(10, 30, "test")
    Dim lat,lon As Int
  
    m1.Snippet = "This is the snippet"
    Dim cp As CameraPosition
    lat = gmap.MyLocation.Latitude
    lon=gmap.MyLocation.Longitude
    cp.Initialize(lat, lon, 10)
    gmap.AnimateCamera(cp)
    'gmap.MoveCamera(cp)
    'Panel1.Visible = True
    'Dim cp As CameraPosition
    'cp.Initialize(gmap.MyLocation.Latitude, gmap.MyLocation.Longitude, 10)
    'gmap.MoveCamera(cp)
        'Dim cp As CameraPosition
        'cp.Initialize(10, 30, gmap.CameraPosition.Zoom)
        'gmap.AnimateCamera(cp)
  
End Sub

'This code will be applied to the manifest file during compilation.
'You do not need to modify it in most cases.
'See this link for for more information: https://www.b4x.com/forum/showthread.php?p=78136
AddManifestText(
<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="14"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)

AddApplicationText(<meta-data
  android:name="com.google.android.maps.v2.API_KEY"
  android:value="AIzazzzzzzzzzzzzzzzzzzzzzz"/>
   <meta-data android:name="com.google.android.gms.version"
   android:value="@integer/google_play_services_version" />
)
'End of default text.

 

[DonManfred]

lat = gmap.MyLocation.Latitude
lon=gmap.MyLocation.Longitude

Did you marked the Checkbox in MapFragment (in designer) for Own Location enabled.

Otherwise you can enable it at runtime.

Sub MapFragment1_Ready
    Log("MapReady()")
    gmap = MapFragment1.GetMap
    gmap.MyLocationEnabled = True

Which B4A Version are you using?


if you use B4A 6+ then it should be only

AddApplicationText(
<meta-data
  android:name="com.google.android.geo.API_KEY"
  android:value="AIzaSxxxxxxxxx "/>
)

plus the base-snippet from firebase-integration (which should be

'************ Google Play Services Base ************
AddApplicationText(
   <activity android:name="com.google.android.gms.common.api.GoogleApiActivity"
  android:theme="@android:style/Theme.Translucent.NoTitleBar"
  android:exported="false"/>
    <meta-data
  android:name="com.google.android.gms.version"
  android:value="@integer/google_play_services_version" />
)
'************ Google Play Services Base (end) ************

With other words. Check you GoogeMaps implementation.

 

[jchal]

DonManfred it is not working
when it comes to line which is line 48

 lat = gmap.MyLocation.Latitude

it crashes and the log is

Logger connected to: samsung GT-I9060
--------- beginning of /dev/log/main
Copying updated assets files (1)
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
MapReady()
Error occurred on line: 48 (Main)
java.lang.RuntimeException: Object should first be initialized (LatLng).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
at anywheresoftware.b4a.objects.MapFragmentWrapper$LatLngWrapper.getLatitude(MapFragmentWrapper.java:391)
at b4a.example.main._mapfragment1_ready(main.java:424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at anywheresoftware.b4a.BA$1.run(BA.java:303)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5319)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)

if i remove the

Dim cp As CameraPosition
    lat = gmap.MyLocation.Latitude
    lon=gmap.MyLocation.Longitude
    cp.Initialize(lat, lon, 10)
    gmap.AnimateCamera(cp)

everithing works

 

[DonManfred]

Again: UPLOAD YOUR PRJECT (not just posting some code). so we can try and see the error.
Don´t expect me to create a new project from your code to be able to run it and to see the error.

 

[jchal]

this is the down load link as i canot send larger files than 512kb
https://wetransfer.com/downloads/41...83499ceda393b8d47a0d62fb20170529164443/142ed5

 

[DonManfred]

this is the down load link as i canot send larger files than 512kb

In the IDE under File->Export as zip
This is the right way to export a project.

As you can see; your project is just 8kb in size.

PD: Please note that MyLocation is only available when outside.... At least it is working for me only when i have GPS Signal....

 

[Erel]

gmap.MyLocation returns an uninitialized object if the location is not known. You should check whether gmap.MyLocation.IsInitialized before you try to access it.

 

[DonManfred]

You should check whether gmap.MyLocation.IsInitialized before you try to access it.

This is what i added to the TO´s Project. And i changed the definition from lat and lon from int to double.