Android Tutorial Google Maps

Installation instructions:

- Register your app in Google developer console: https://console.developers.google.com
You need to enable Google Maps Android API.
Then click on Credentials -> Create Credentials -> API Key -> Android Key.
You should get a key that looks like: AIzaSyCmFHamGE0O0BvxxxxxxxxXbTCSrjFVg-Q

- Add this to the manifest editor (replace the value with your key):

CreateResourceFromFile(Macro, FirebaseAnalytics.GooglePlayBase)

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

- Add a MapFragment with the visual designer. It will appear under the CustomView menu. If you don't see it then make sure that the GoogleMaps library is selected.
You can change the properties from the designer.
Set the anchors to BOTH so the map will fill the activity:

Implement the Ready event to get a reference to the GoogleMap object.
Complete code:

Sub Class_Globals
    Private Root As B4XView
    Private xui As XUI
    Private MapFragment1 As MapFragment
    Private gmap As GoogleMap
    Private rp As RuntimePermissions
End Sub

Public Sub Initialize
    
End Sub

Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
    Wait For MapFragment1_Ready
    gmap = MapFragment1.GetMap
    rp.CheckAndRequest(rp.PERMISSION_ACCESS_FINE_LOCATION)
    Wait For B4XPage_PermissionResult (Permission As String, Result As Boolean)
    If Result Or rp.Check(rp.PERMISSION_ACCESS_COARSE_LOCATION) Then
        gmap.MyLocationEnabled = True
    Else
        Log("No permission!")
    End If
End Sub

Updates

- v2.50 - Required dependencies were added to the library.
My Location Enabled property was removed from the designer as it needs to be set after the permission is granted.
- v2.02 EXTERNAL_STORAGE permission removed. It is no longer required.
GetOpenSourceLicenseInfo returns an empty string.
Fixes an issue with the ready event being lost if the activity is paused before the map is ready.

Note that you will need to update the package name and api key in the attached example.

 

[Powie]

Hello, today I started to upgrade all libraries of our MADB project. I'm in problems in upgrading also the GoogleMaps libraries.... I think configuration of libraries, manifest and so on is OK, the map is displayed...

The issue for me ist that ( based on the tutorial code) MapFragment1_Ready() isn't triggered.
So I tried this also on the way to make a clean app with only the code from post1, struggling also with the same issue.
Triggered is Map_CameraChange...

Do I miss anything?

 

[Erel]

Have you added MapFragment with the designer?

 

[Powie]

Have you added MapFragment with the designer?

Yes!

 

[Powie]

Ah... same issue : https://www.b4x.com/android/forum/threads/googlemaps-ignoring-event-mapfragment1_ready.68693/

 

[Powie]

Yes, I can confirm this. mapready was ignored, because after starting the activity I show a logo screen.

If I disable the intro and the activity map_ready works as designed.

 

[ldb68]

How I can get from the map the current direction of the user (compass)?
I need the direction shown by the compass in the map without having to use the sensors directly (that gives me very mixed results).
thanks

 

[Erel]

Please start a new thread for this question.

 

[Yayou49]

V5.80
Hi everybody,

Even after a long read of all requests of this thread, I didn't found a solution to my problem.
I've installed Google Play service Rev 39 in my SDK directory:

- No way to find google-play-services.jar in any of my drives
- you said to add a res like "<android sdk>\extras\google\google_play_services\libproject\google-play-services_lib\res, com.google.android.gms"
but if I look into my directory "<android sdk>\extras\google\google_play_services\" I have only 2 sub directories: (docs & samples)

What's wrong ???....

Thanks in advance.

 

[MarcoRome]

V5.80
Hi everybody,

Even after a long read of all requests of this thread, I didn't found a solution to my problem.
I've installed Google Play service Rev 39 in my SDK directory:

- No way to find google-play-services.jar in any of my drives
- you said to add a res like "<android sdk>\extras\google\google_play_services\libproject\google-play-services_lib\res, com.google.android.gms"
but if I look into my directory "<android sdk>\extras\google\google_play_services\" I have only 2 sub directories: (docs & samples)

What's wrong ???....

Thanks in advance.

Look THIS
My suggestion "Is time to switch Rel. B4A 6.80"

 

[Yayou49]

Nice shot Marco !!!
Seems to work, in debug mode, it's compliling .... until "Installing file to device", I get this error:

XXXXX_RAPID_DEBUG.apk: 1 file pushed. 8.7 MB/s (2777756 bytes in 0.304s)
pkg: /data/local/tmp/XXXXX_RAPID_DEBUG.apk
Failure [INSTALL_PARSE_FAILED_MANIFEST_MALFORMED]

Here is my manifest. If I remove the 2 first addManifestText, no more compiling error:

AddManifestText(<permission
android:name="$PACKAGE$.permission.MAPS_RECEIVE"
androidrotectionLevel="signature"/>
<uses-feature android:glEsVersion="0x00020000" android:required="true"/>)
AddApplicationText(<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyA0kIYq2_tvkxxxxxxxxxxxxxxx-0"/>
<meta-data android:name="com.google.android.gms.version"
android:value="@Integer/google_play_services_version" />)

AddManifestText(
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="14"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
AddManifestText(
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="17"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>)
AddManifestText(<uses-feature android:name="android.hardware.telephony" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.flash" android:required="false" />)
'AddPermission("android.permission.ACCESS_COARSE_LOCATION")
AddManifestText(<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />)
AddPermission("android.permission.INTERNET")
'AddPermission("android.permission.ACCESS_FINE_LOCATION")
'AddPermission("android.permission.WAKE_LOCK")
'AddPermission("android.permission.DEVICE_POWER")
'AddPermission("android.permission.ACCESS_COARSE_UPDATES")
AddPermission("android.permission.READ_PHONE_STATE")
'AddPermission("android.permission.VIBRATE")
AddPermission("android.permission.CAMERA")
AddPermission("android.permission.FLASHLIGHT")
AddPermission("android.hardware.camera")
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")


Any idea ?

 

[DonManfred]

Any idea ?

Yes, you are NOT using tags... Use quotetag for logs or code tags for code.

 

[Yayou49]

Sorry, I keep my previous question but I've found the answer in another thread https://www.b4x.com/android/forum/t..._failed_manifest_malformed.74543/#post-473880.
Need to replace "$" by ".$"

So: android:name="$PACKAGE$.permission.MAPS_RECEIVE"
become android:name=".$PACKAGE$.permission.MAPS_RECEIVE"

and it works fine

Many thanks to community !!!!

 

[evbedp]

Dear Erel,

could you help me to solve this one?.. i got this error when i call this code .getMap()

i'm using B4A 6.80

** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
java.lang.NoSuchMethodError: No virtual method getMap()Lcom/google/android/gms/maps/GoogleMap; in class Lanywheresoftware/b4a/objects/MapFragmentWrapper$MyMapFragment; or its super classes (declaration of 'anywheresoftware.b4a.objects.MapFragmentWrapper$MyMapFragment' appears in /data/app/e.moto.workshop-1/base.apk)
    at anywheresoftware.b4a.objects.MapFragmentWrapper.GetMap(MapFragmentWrapper.java:132)
    at e.moto.workshop.main._gm_ready(main.java:943)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    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.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:163)
    at anywheresoftware.b4a.objects.MapFragmentWrapper$MyMapFragment.onViewCreated(MapFragmentWrapper.java:191)
    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:913)
    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1072)
    at android.app.BackStackRecord.run(BackStackRecord.java:852)
    at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1488)
    at android.app.FragmentManagerImpl$1.run(FragmentManager.java:452)
    at android.os.Handler.handleCallback(Handler.java:815)
    at android.os.Handler.dispatchMessage(Handler.java:104)
    at android.os.Looper.loop(Looper.java:210)
    at android.app.ActivityThread.main(ActivityThread.java:5833)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1113)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:879)

 

[Erel]

Dear Erel,

Please don't limit your questions to a single member.

Make sure to follow the instructions for B4A 6+: https://www.b4x.com/android/forum/threads/google-maps.63930/

 

[evbedp]

Dear Erel,

could you help me to solve this one?.. i got this error when i call this code .getMap()

i'm using B4A 6.80

** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
java.lang.NoSuchMethodError: No virtual method getMap()Lcom/google/android/gms/maps/GoogleMap; in class Lanywheresoftware/b4a/objects/MapFragmentWrapper$MyMapFragment; or its super classes (declaration of 'anywheresoftware.b4a.objects.MapFragmentWrapper$MyMapFragment' appears in /data/app/e.moto.workshop-1/base.apk)
    at anywheresoftware.b4a.objects.MapFragmentWrapper.GetMap(MapFragmentWrapper.java:132)
    at e.moto.workshop.main._gm_ready(main.java:943)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    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.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:163)
    at anywheresoftware.b4a.objects.MapFragmentWrapper$MyMapFragment.onViewCreated(MapFragmentWrapper.java:191)
    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:913)
    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1072)
    at android.app.BackStackRecord.run(BackStackRecord.java:852)
    at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1488)
    at android.app.FragmentManagerImpl$1.run(FragmentManager.java:452)
    at android.os.Handler.handleCallback(Handler.java:815)
    at android.os.Handler.dispatchMessage(Handler.java:104)
    at android.os.Looper.loop(Looper.java:210)
    at android.app.ActivityThread.main(ActivityThread.java:5833)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1113)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:879)

i got this error when update google play service in Android SDK manajer to Rev 39. could you help me?

my project is work before i'm update google play service.

 

[evbedp]

Please don't limit your questions to a single member.

Make sure to follow the instructions for B4A 6+: https://www.b4x.com/android/forum/threads/google-maps.63930/

i had follow all instruction in https://www.b4x.com/android/forum/threads/google-maps.63930 but still not work.

 

[Erel]

Have you installed the latest versions of the two repositories?

 

[evbedp]

PackageAdded: package:e.moto.workshop~i:** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
android.content.res.Resources$NotFoundException: Unable to find resource ID #0x26
    at android.content.res.Resources.getResourceName(Resources.java:2442)
    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:891)
    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1072)
    at android.app.BackStackRecord.run(BackStackRecord.java:852)
    at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1488)
    at android.app.FragmentManagerImpl$1.run(FragmentManager.java:452)
    at android.os.Handler.handleCallback(Handler.java:815)
    at android.os.Handler.dispatchMessage(Handler.java:104)
    at android.os.Looper.loop(Looper.java:210)
    at android.app.ActivityThread.main(ActivityThread.java:5833)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1113)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:879)

 

[evbedp]

Have you installed the latest versions of the two repositories?

Yes, for Google Repository already Rev 47 and Android Support Repository Rev 47.

 

[Erel]

Can you upload the project (File - Export as zip)?