Reverse Geocoding

[tonycmac]

I've created a small program based on Erel's GPS Tutorial and would like to pass the Lat/Long that the app obtains to the Google Reverse Geocoding API and display a msgbox with some information from the returned JSON or XML file.

I can't seem to figure out how to send the request to the API to get the JSON or XML file returned to the android device for parsing... :BangHead:

This seems pretty straightforward but I'm obviously missing something... Any help would be greatly appreciated!

 

[Erel]

Can you post a link to their API description?

 

[tonycmac]

The API I'm referring to is the Google Reverse Geocoding API which can be referenced here:

The Google Geocoding API - Google Maps API Web Services - Google Code

The idea is to send a query such as this in JSON with lat/lon:
http://maps.googleapis.com/maps/api/geocode/json?latlng=40.714224,-73.961452&sensor=true

or this in XML:
http://maps.googleapis.com/maps/api/geocode/xml?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA&sensor=true

which then returns parsable data...

using a desktop browser, the data shows up fine, but I'm not sure how to download this returned data and then parse the results :sign0104:

 

[NJDude]

Can you post your project?, use the EXPORT TO ZIP in the designer.

 

[tonycmac]

Unfortunately, I'm not at the computer that has the code right now but it's almost identical to Erel's GPS tutorial.

code found here: http://www.b4x.com/forum/basic4android-getting-started-tutorials/6592-gps-tutorial.html#post38535

In the GPS_LocationChanged sub, I essentially have 3 variables that come from:
Location1.Latitude
Location1.Longitude
Location1.Accuracy

When Location1.Accuracy is not equal to 0 (i.e. GPS has a fix), I then make visible a button on the screen called "Geocode".

What I'd like to do is that when the GPS has a suitable fix, send the Lat/Lon to the Google API using a URL that contains the lat/lon and have the app collect the parsable data that is then returned through a json or xml file...

 

[NJDude]

The attached file is a bare bones project to use Google's geo Location, it's based on the tutorial you mentioned.

 

[tonycmac]

Exactly what I was looking for!!

Time for me to learn how to parse XML now!

:sign0098:

 

[mmieher]

Thank you! I have been trying to do this for two days!

 

[netchicken]

Fantastic! Something I have always wanted!

 

[rbsoft]

You could also use the Geocoder library.

http://www.b4x.com/forum/additional-libraries-official-updates/17115-geocoder-library.html#post97857


Rolf