Android Question Problems with Mapfragment Initialize

[sea121]

Hi everyone,
I have a problem with the initialization of mapfragment, I state that I am not using the designer file and I configure the objects manually, using mapfragment as you can see from the code I always get an error, I can not understand how I can do to delete it. If anyone can kindly give me some indication. Thank you.

Sub Process_Globals

    Private rp As RuntimePermissions

End Sub

Sub Globals

    Private panel As Panel
    Private mp As MapFragment
    
End Sub

Sub Activity_Create(FirstTime As Boolean)
    
    rp.CheckAndRequest(rp.PERMISSION_ACCESS_FINE_LOCATION)
    Wait For Activity_PermissionResult (Permission As String, Result As Boolean)
    
    panel.Initialize("Panel")
    Activity.AddView(panel,0,0,100%x,100%y)
    
    mp.Initialize("Map",panel)
    wait For Map_Ready

End Sub

AddManifestText(
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="30"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
    
AddManifestText(<uses-feature android:name="android.hardware.location.gps"/>)
AddManifestText(<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>)
    
SetApplicationAttribute(android:largeHeap, "true")
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")

'End of default text.
CreateResourceFromFile(Macro, FirebaseAnalytics.GooglePlayBase)
CreateResourceFromFile(Macro, Themes.DarkTheme)

AddApplicationText(
<uses-library
      android:name="org.apache.http.legacy"
      android:required="false" />

<meta-data
  android:name="com.google.android.geo.API_KEY"
  android:value="....... google api key ......."/>
)

This is the error Log :

** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
java.lang.RuntimeException: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object anywheresoftware.b4a.objects.collections.Map.Get(java.lang.Object)' on a null object reference
at anywheresoftware.b4a.objects.MapFragmentWrapper$1.onMapReady(MapFragmentWrapper.java:191)
at com.google.android.gms.maps.zzac.zzb(com.google.android.gmslay-services-maps@@17.0.1:1)
at com.google.android.gms.maps.internal.zzaq.zza(com.google.android.gmslay-services-maps@@17.0.1:6)
at com.google.android.gms.internal.maps.zzb.onTransact(com.google.android.gmslay-services-maps@@17.0.1:3)
at android.os.Binder.transact(Binder.java:675)
at es.bccom.google.android.gms.dynamite_mapsdynamite@[email protected] (100408-0):2)
at com.google.maps.api.android.lib6.impl.bf.runcom.google.android.gms.dynamite_mapsdynamite@[email protected] (100408-0):1)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7050)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object anywheresoftware.b4a.objects.collections.Map.Get(java.lang.Object)' on a null object reference
at anywheresoftware.b4a.objects.MapFragmentWrapper$1.onMapReady(MapFragmentWrapper.java:177)
... 13 more

 

[DonManfred]

I state that I am not using the designer file and I configure the objects manually

This is the problem! USE the designer. GoogleMap needs some configurationvalues which are defiined in the designer.
Additionally this is the way to add CustomViews.

[B4X] I need 100 <custom view here>s. How to add programmatically?

Custom views are designed to be added with the designer. It is however very simple to create a layout file with the custom view and load it multiple times. Tip: remove the call to AutoScaleAll from the designer script. Complete example: Sub Globals Private B4XSwitch1 As B4XSwitch End...

www.b4x.com

 

[sea121]

Thank you for your kind reply, I realized that there is no other choice.