android-reverse geocoding-Google Map API (geocoding) -

I'm developing an Android app where I use the Google reverse geocoding API webservice on the user side, In the text format to read HttpGet httpGet = New HttpGet ("http://maps.googleapis.com/maps/api/geocode/json?latlng=" + + + "," + lng + "and sensor = truth");

I have the following three questions:

1- Do I have to use a map in my app, because I only show the user the location in the text And I do not want a map in my app? "(H) No use of the material without Google Maps. Unless you are allowed to do so clearly in the Maps API document, you can use the content without Google's relevance or Should not be displayed. "

2- Is it necessary that I would like to add an API key to the Apache Side API of the web service?

3-I hope to establish an enterprise agreement with Google, and get client_ID and include it in the request sent at the end user?

To answer questions:

1) I think you Using APIs in the API document, without using it, he said:

The Google Geocoding API provides a direct way to access these services through an HTTP request.

2) You need an API key to use the service, even if it works without using one (not recommended). See this section for more information.

All Maps API applications * should load the Maps API using an API key. Using the API key, you can monitor the Maps API usage of your application and make sure that Google can contact you about your application if necessary.

3) For client_id, I think you do not need it unless you have ..