Share My Creation GPS Example

klaus · Dec 19, 2011

Do not use this program it is a very old one which was released before the GoogleMaps library was released.
Many things have changed since the release of this program and it does no more work as expected.
I have not updated it to satisfy the new requirements of Google which have become more and more restrictive.

Here is a GPS Example program with following functions:

Connect the GPS
Get and display GPS information
Save a GPS path (program internal GPP format and Google Earth KML format)
Display the available satellites
Display Google maps
Display a GPS path on the map
Shows current GPS position on the map

Google map functions, user settable :

Display zoom control
Display scale control
Display a path
Display markers
Move a marker
Display coordinates (touch the screen)
Move the map / Display coordinates (touch the screen and move)

Some special features:

Table with first column always visible. Image GPS_3.
Touching a button changes it's color and shows a tooltip on top of the screen. Releasing it insides the button area executes the function and hides the tooltip. Releasing outsides the butoon area does not execute the function and hides the tooltip. This allows to check a button function without executing it. Image GPS_4
Touching some buttons displays 'subbuttons' to select other setup parameters more easily rather than doing it in the setup screen. Image GPS_5

Comments on the images:

GPS_1 Display of a GPS path with polyline and markers
GPS_2 Display of current GPS data with the position on the map
GPS_3 Display of GPS path data in a table
GPS_4 Main screen, display of a tooltip, just touched the PATH button before releasing it
GPS_5 Display of 'subbuttons' to select setup parameters
GPS_6 Display og Satellites data
GPS_7 Setup screen
GPS_8 Save screen with one button foe each file format
GPS_9 Shows InfoWindow

It is designed for smartphones and does work only in portrait mode.

The program needs following additional libraries:
- ByteConverter
- Dialogs
- RandomAccessFile
- WebViewExtras
- ScrollView2D

Thank's to warwound for the WebViewExtras library, that allowed adding events to the GoogleMaps WebView.

The programs functionalities are explained in the Basic4Android User's Guide and some code is also explained.
If there are some code parts you would like having explained in the Basic4Android User's Guide post the request in this thread.

Best regards.

EDIT: 2011.12.20 version 1.1
Updated the source code after the bug reports.

EDIT: 2011.12.21 version 1.2
Added the maptype_changed event, problem reported by dlfallen in post#21

EDIT: 2011.12.22 version 1.3
Changed the zoom calculation
Added MapTypeControlID choice
Added MapZoomControlStyle choice

EDIT: 2011.12.23 version 1.4
Amended the problems reported by dlfallen

EDIT: 2011.12.27 version 1.5
Added saving of a GPS path in Google Earth KML format.
Removed the short help file, the help is in the Beginner's Guide.

EDIT: 2011.12.28 version 1.51
Amended bug reported by timo in post #37

EDIT: 2012.02.06 version 1.55
Amended bug report by msains in post #56

EDIT: 2012.02.06 version 1.56
Amended bug report by alfcen in post #59

EDIT: 2012.02.08 version 1.60
Amended bug report by Andras in post #64

EDIT: 2012.06.02 version 1.70
Added most of Barry Sumpters' wishes
Amended input from Filippo (German forum)
Added an InfoWindow for the first marker, when clicking on the first Marker an InfoWindoe is displayed.

EDIT: 2012.06.12 version 1.80
Added a filter to remove close locations.
Improved some function and removed some bugs.

EDIT: 2012.10.09 version 2.00
Updated for tablets.
Works only in portrait on phones and both orientations on tablets.
Needs Basic4Android version 2.2 (uses AutoScale)

EDIT: 2013.03.06 version 2.1
Amended error reported in post #142.

EDIT: 2014.08.09 version 2.2
Added altitude above sea level post #175

EDIT: 2015.04.17 version 2.3
Amended error reported in post #179
Amended some minor bugs

EDIT 2018.02.15 version 2.6
Removed DoEvents
Replaced File.DirRootExternal by GetSafeDirDefaultExternal.

Peter Simpson · Jun 25, 2018

Add the following line to your manifest file..

B4X:

AddPermission(android.permission.ACCESS_FINE_LOCATION)

Enjoy...

Vo DOng Hai · Jun 25, 2018

Peter Simpson said:
Add the following line to your manifest file..

B4X:

AddPermission(android.permission.ACCESS_FINE_LOCATION)

Enjoy...

Thank you for your help!
I already have this line in manifest file:

DonManfred · Jun 25, 2018

Peter Simpson said:
Add the following line to your manifest file..

This is only a partial solution based on targetsdk is set to 22 Maximum. By end of the Year Google will force us to use 26.
The default targetsdk in new B4A Projects is 26 too.

To answer the question

Check this thread android.jar / targetSdkVersion / minSdkVersion

Especially RuntimePermissions

ovasquez · Jan 23, 2019

Good Night
During the execution of the program the following error occurs when activating MAPS:
This page can not load Google Maps correctly.

The error is given by Line 1082 of Main since the KEY parameter must be included:

HtmlCode = "...... <script type = 'text / javascript' src = 'http: //maps.google.com/maps/api/js? V = 3.exp & sensor = true & key = xxxssdffghh & callback = initMap'> </ script> ........ "

To generate the key, you must create a Google Maps account and activate the "free" testing period. For this they need a credit card, if not is activated, the error will always be shown.

The next URL indicate how must activate the KEY API

https://developers.google.com/maps/documentation/javascript/get-api-key#quick-guide

Regards,

Orlando Vasquez

klaus · Jan 23, 2019

I have also the same problem, I have not yet looked more in detail at it.

DonManfred · Jan 24, 2019

klaus said:
I have also the same problem

Problem is that you are using the Javascript Google Map here. On Android it is suggested to use the Native android Library instead of a webview.
The Native GoogleMaps does not not have any Limitations.

Emerito · Feb 21, 2019

[QUOTE = "ovasquez, post: 638960, miembro: 41296"] Buenas noches
Durante la ejecución del programa, se produce el siguiente error al activar MAPAS:
Esta página no puede cargar Google Maps correctamente.

El error está dado por la línea 1082 de Main, ya que el parámetro KEY debe incluirse:

HtmlCode = "...... <tipo de script = 'texto / javascript' src = 'http: //maps.google.com/maps/api/js? V = 3.exp & sensor = true & key = xxxssdffghh & callback = initMap '> </ script> ........ "

Para generar la clave, debe crear una cuenta de Google Maps y activar el período de prueba "gratuito". Si no está activada, siempre se verá el error.

La siguiente URL indica cómo se debe activar la API de CLAVE.

https://developers.google.com/maps/documentation/javascript/get-api-key#quick-guide

Saludos

Orlando Vásquez [/ CITA]

good morning,
I'm creating an app where I want to show google maps. Your distribution will be free, but the message appears "This page can not load Google Maps correctly."
The obtaining of the API is free, or when distributing the app would have to pay the license?

Roger Daley · Feb 24, 2019

Emerito said:
[QUOTE = "ovasquez, post: 638960, miembro: 41296"] Buenas noches
Durante la ejecución del programa, se produce el siguiente error al activar MAPAS:
Esta página no puede cargar Google Maps correctamente.

El error está dado por la línea 1082 de Main, ya que el parámetro KEY debe incluirse:

HtmlCode = "...... <tipo de script = 'texto / javascript' src = 'http: //maps.google.com/maps/api/js? V = 3.exp & sensor = true & key = xxxssdffghh & callback = initMap '> </ script> ........ "

Para generar la clave, debe crear una cuenta de Google Maps y activar el período de prueba "gratuito". Si no está activada, siempre se verá el error.

La siguiente URL indica cómo se debe activar la API de CLAVE.

https://developers.google.com/maps/documentation/javascript/get-api-key#quick-guide
Below
Saludos

Orlando Vásquez [/ CITA]

good morning,
I'm creating an app where I want to show google maps. Your distribution will be free, but the message appears "This page can not load Google Maps correctly."
The obtaining of the API is free, or when distributing the app would have to pay the license?

Orlando,
Distribution should be free. Below is a link to my Google Maps App based on the same example. I definitely don't pay a licence fee.
https://www.b4x.com/android/forum/threads/antenna-bearing-tool-with-source-code.54073/

Regards Roger
EDIT: This will help but Google makes everything complicated.
https://www.b4x.com/android/forum/threads/google-maps.63930/#content

Emerito · Mar 7, 2019

[QUOTE = "Roger Daley, post: 646014, miembro: 67015"] Orlando,
La distribución debe ser gratuita. A continuación se muestra un enlace a mi aplicación de Google Maps basada en el mismo ejemplo. Definitivamente no pago una licencia.
https://www.b4x.com/android/forum/threads/antenna-bearing-tool-with-source-code.54073/

Saludos Roger
EDITAR: Esto ayudará, pero Google hace que todo sea complicado.
https://www.b4x.com/android/forum/threads/google-maps.63930/#content [/ QUOTE]

He intentado ejecutar su ejemplo, pero me da este error:
B4A Versión: 8.80
Parseando código. (0.05s)
Construcción de estructura de carpetas. (0.02s)
Compilando código. (0.34s)
Compilado códigos de diseños. (0.03s)
Organizando librerías. (0.00s)
Generando el fichero R. Error
ERROR: el directorio de recursos 'c: \ archivos de programa \ android \ android-sdk \ extras \ google \ google_play_services \ libproject \ google-play-services_lib \ res' no existe

Roger Daley · Mar 7, 2019

Orlando,

It appears you have tried to run "AntennaBearingTool2.b4a" from inside the Zip file. Open the Zip Windows Explorer to drag the folder on to the desk top. Open the folder and run "AntennaBearingTool2.b4a".

Regards Roger

Emerito · Mar 8, 2019

[QUOTE = "Roger Daley, post: 648843, miembro: 67015"] Orlando,

Parece que ha intentado ejecutar "AntennaBearingTool2.b4a" desde el interior del archivo Zip. Abra el Explorador de Windows Zip para arrastrar la carpeta al escritorio. Abra la carpeta y ejecute "AntennaBearingTool2.b4a".

Saludos Roger [/ CITA]

Buenos dias Roger, Lo he intentado ejecutar desde una carpeta descomprimida, Pero veo que el problema debe estar en esto:
#Recursos adicionales: C: \ Archivos de programa \ Android \ android-sdk \ extras \ google \ google_play_services \ libproject \ google-play-services_lib \ res, com.google.android.gms
y yo no tengo en la carpeta android-sdk la subcarpeta extras

Roger Daley · Mar 8, 2019

Emerito said:
View attachment 78155 [QUOTE = "Roger Daley, post: 648843, miembro: 67015"] Orlando,

Parece que ha intentado ejecutar "AntennaBearingTool2.b4a" desde el interior del archivo Zip. Abra el Explorador de Windows Zip para arrastrar la carpeta al escritorio. Abra la carpeta y ejecute "AntennaBearingTool2.b4a".

Saludos Roger [/ CITA]

Buenos dias Roger, Lo he intentado ejecutar desde una carpeta descomprimida, Pero veo que el problema debe estar en esto:
#Recursos adicionales: C: \ Archivos de programa \ Android \ android-sdk \ extras \ google \ google_play_services \ libproject \ google-play-services_lib \ res, com.google.android.gms
y yo no tengo en la carpeta android-sdk la subcarpeta extras

Orlando,

I can only suggest you install the current Android SDK as shown on this link. [And configure paths]

https://www.b4x.com/b4a.html

Regards Roger

Emerito · Mar 8, 2019

en el enlace que me indica he realizado el paso 3 e instalado todo lo recomendado. pero me sigue faltando "\extras\google\google_play_services\libproject\google-play-services_lib\res, com.google.android.gms"
He ejecutado SDK Manager.exe pero no se que es lo que tengo que instalar.
Lamento mi ignorancia. Saludos.

Roger Daley · Mar 8, 2019

Emerito said:
en el enlace que me indica he realizado el paso 3 e instalado todo lo recomendado. pero me sigue faltando "\extras\google\google_play_services\libproject\google-play-services_lib\res, com.google.android.gms"
He ejecutado SDK Manager.exe pero no se que es lo que tengo que instalar.
Lamento mi ignorancia. Saludos.

Orlando
It is time to ask the B4A experts. Start a new thread on the Forum about fixing the missing EXIT Folder.
Not having your SDK up to date and working is going to give you lots of problems.

Regards Roger

Emerito · Mar 8, 2019

Gracias, así haré.
Saludos

Emerito · Mar 9, 2019

Little by little I have been taking steps. Now I have the following error

Generando el fichero R. Error
c:\program files (x86)\android\android-sdk\extras\google\google-play-services\libproject\google-play-services_lib\res\values-v21\appinvite_styles.xml:5: error: Error retrieving parent for item: No resource found that matches the given name '@android:style/Theme.Material.Light.DialogWhenLarge.NoActionBar'.
You can help me?
Regards

Erel · Mar 10, 2019

Follow the installation instructions: https://www.b4x.com/b4a.html#installation

dimajak · Apr 5, 2024

B4X:

Private Dialog1 As FileDialog

Error "Unknown type FileDialog". B4A 12.80 (64 bit).

klaus · Apr 5, 2024

You need the Dialogs library.
Be aware that this program is a very old one and many things have evolved in B4A and GPS.
The program uses a WebView to display the map, this was before the GoogleMaps library was released.
And now, to use GoogleMaps library you need a registration from Google.
I do not advice to use this program.

I have added a comment in the original post to avoid the use of this program.

Share My Creation GPS Example

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