Places Autocomplete: Android

Places Autocomplete: Android

Steps

1: Create Android API Browser API key on google console.

2: Http Get Request on following link:

https://maps.googleapis.com/maps/api/place/autocomplete/json?input=ban&key=API_KEY

3: Define output format : json/xml

4: On autocomplete text  change , call following method .

PlaceAPI.getPlace(String inputType,  String latitude,String longitude)

Ex.

PlaceAPI.getPlace(“bank”,”18.643702″,”73.00000″)

 

5: Set Adapter to autocomplete view.

 

PlaceAPI Code:

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;

public class PlaceAPI {

private static final String TAG = PlaceAPI.class.getSimpleName();
private static final String PLACES_API_BASE = “https://maps.googleapis.com/maps/api/place”;
private static final String TYPE_AUTOCOMPLETE = “/autocomplete”;
private static final String OUT_JSON = “/json”;

private static final String API_KEY = “”;

public ArrayList<String> getPlace(String input,String latitude,String longitude) {
ArrayList<String> resultList = null;

HttpURLConnection conn = null;
StringBuilder jsonResults = new StringBuilder();

try {
StringBuilder sb = new StringBuilder(PLACES_API_BASE + TYPE_AUTOCOMPLETE + OUT_JSON);
sb.append(“?input=” + URLEncoder.encode(input, “utf8”));

if(latitude.trim().length()>0 && longitude.trim().length()>0){
sb.append(“&location=” + URLEncoder.encode(latitude.trim()+”,”+longitude.trim(), “utf8”));

}
sb.append(“&radius=10000”);
sb.append(“&key=” + API_KEY);
System.out.println(“Gooogle URL: ” + sb.toString());

URL url = new URL(sb.toString());
conn = (HttpURLConnection) url.openConnection();
InputStreamReader in = new InputStreamReader(conn.getInputStream());

// Load the results into a StringBuilder
int read;
char[] buff = new char[1024];
while ((read = in.read(buff)) != -1) {
jsonResults.append(buff, 0, read);
}
} catch (MalformedURLException e) {
Log.e(TAG, “Error processing Places API URL”, e);
return resultList;
} catch (IOException e) {
Log.e(TAG, “Error connecting to Places API”, e);
return resultList;
} finally {
if (conn != null) {
conn.disconnect();
}
}

try {
// Log.d(TAG, jsonResults.toString());

// Create a JSON object hierarchy from the results
JSONObject jsonObj = new JSONObject(jsonResults.toString());
JSONArray predsJsonArray = jsonObj.getJSONArray(“predictions”);

// Extract the Place descriptions from the results
resultList = new ArrayList<String>(predsJsonArray.length());
for (int i = 0; i < predsJsonArray.length(); i++) {
resultList.add(predsJsonArray.getJSONObject(i).getString(“description”));
}
} catch (JSONException e) {
Log.e(TAG, “Cannot process JSON results”, e);
}

return resultList;
}
}