Hello everyone,
I am trying to retrieve tweets and display them on a google maps(on a
android phone)
I am using Twitter4j api to retrieve tweets and display them on Google maps
in a android phone.
I am using two classes one for retrieving tweets with the help of twitter4j
storing coordinates of tweets in a array and pass them to second class to
display them on map,
but this solution does not works for me
My both classes are as below
class to display tweets on map
package com.example.hellomap;
import java.util.ArrayList;
import java.util.Date;
import twitter4j.FilterQuery;
import twitter4j.GeoLocation;
import twitter4j.GeoQuery;
import twitter4j.Query;
import twitter4j.QueryResult;
import twitter4j.StallWarning;
import twitter4j.Status;
import twitter4j.StatusDeletionNotice;
import twitter4j.StatusListener;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.TwitterStream;
import twitter4j.TwitterStreamFactory;
import twitter4j.User;
import twitter4j.conf.ConfigurationBuilder;
import android.location.Criteria;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class MainActivity extends FragmentActivity {
private GoogleMap mMap;
GeoLocation loc=null;
double[][] locCoordinates =null;
NumberOfTweets NOT=new NumberOfTweets();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setUpMapIfNeeded();
}
@Override
protected void onResume() {
super.onResume();
setUpMapIfNeeded();
locCoordinates = NOT.ab();
}
private void setUpMapIfNeeded() {
if (mMap == null) {
mMap = ((SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map)).getMap();
}
if (mMap == null) {
return;
}
// Initialize map options. For example:
//mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
for(int i=0;i<locCoordinates.length;i++){
}
}
}
while class to retrieve tweets is as below
package com.example.hellomap;
import java.util.ArrayList;
import java.util.Date;
import twitter4j.FilterQuery;
import twitter4j.GeoLocation;
import twitter4j.GeoQuery;
import twitter4j.Query;
import twitter4j.QueryResult;
import twitter4j.StallWarning;
import twitter4j.Status;
import twitter4j.StatusDeletionNotice;
import twitter4j.StatusListener;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.TwitterStream;
import twitter4j.TwitterStreamFactory;
import twitter4j.User;
import twitter4j.conf.ConfigurationBuilder;
//http://forum.processing.org/topic/geolocation-twitter-search-twitter4j
public class NumberOfTweets {
GeoLocation location = null;
double[][] locCoordinates = null;
NumberOfTweets NOT=new NumberOfTweets();
public double[][] TweetGathering() throws TwitterException {
ConfigurationBuilder cb = new ConfigurationBuilder();
cb.setDebugEnabled(true);
cb.setOAuthConsumerKey("TTg7JSLqUinlfkWgFZg");
cb.setOAuthConsumerSecret("dHDO2VmPCMyf637uSfgi4rLUyHYYuNSPIFo1Sbe2o");
cb.setOAuthAccessToken("35448069-nUY9WeWmgvmBNPVM353ejxSbZRHPBGHzHTGwV9nc");
cb.setOAuthAccessTokenSecret("mcZpdmB95yWt2rVWs1Dw5hAafOrWZX0XsZmiSH90H8");
Twitter twitter = new TwitterFactory(cb.build()).getInstance();
double lat = 60.1833;
double lon = 24.8333;
double latitude;
double longitude;
int xLat = 3;
int yLon = 2;
int totalResults = 3;
GeoLocation Loc = new GeoLocation(lat, lon);
locCoordinates = new double[xLat][yLon];
String queryStr = "";
// create query object
try {
Query query = new Query(queryStr); // initialize the query object
// and pass in the query string
query.geoCode(Loc, 2, "mi");
query.setCount(totalResults); // set number of results (100 max)
// send query object to the Twitter API
QueryResult result = twitter.search(query);
ArrayList resultTweets = (ArrayList) result.getTweets();
Status tweet = null;
for (int i = 0; i < resultTweets.size(); i++) {
tweet = (Status) resultTweets.get(i);
User user = tweet.getUser();
location = tweet.getGeoLocation();
for (int j = 0; j < 3; j++) {
int k = 0;
locCoordinates[j][k] = location.getLatitude();
k = 1;
locCoordinates[j][k] = location.getLongitude();
}
}
} catch (TwitterException e) {
System.out.println("Search tweets: " + e);
}
return locCoordinates;
}
public double[][] ab() {
try {
NOT.TweetGathering();
} catch (TwitterException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return locCoordinates;
}
}
Please any help would be highly appreciated,
Thanks
BR
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