HandleJSON
package com.example.json;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.json.JSONObject;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserFactory;
import android.annotation.SuppressLint;
public class HandleJSON {
private String country = "county";
private String temperature = "temperature";
private String humidity = "humidity";
private String pressure = "pressure";
private String urlString = null;
public volatile boolean parsingComplete = true;
public HandleJSON(String url){
this.urlString = url;
}
public String getCountry(){
return country;
}
public String getTemperature(){
return temperature;
}
public String getHumidity(){
return humidity;
}
public String getPressure(){
return pressure;
}
@SuppressLint("NewApi")
public void readAndParseJSON(String in) {
try {
JSONObject reader = new JSONObject(in);
JSONObject sys = reader.getJSONObject("sys");
country = sys.getString("country");
JSONObject main = reader.getJSONObject("main");
temperature = main.getString("temp");
pressure = main.getString("pressure");
humidity = main.getString("humidity");
parsingComplete = false;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void fetchJSON(){
Thread thread = new Thread(new Runnable(){
@Override
public void run() {
try {
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(10000 /* milliseconds */);
conn.setConnectTimeout(15000 /* milliseconds */);
conn.setRequestMethod("GET");
conn.setDoInput(true);
// Starts the query
conn.connect();
InputStream stream = conn.getInputStream();
String data = convertStreamToString(stream);
readAndParseJSON(data);
stream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
});
thread.start();
}
static String convertStreamToString(java.io.InputStream is) {
java.util.Scanner s = new java.util.Scanner(is).useDelimiter("\\A");
return s.hasNext() ? s.next() : "";
}
}
MainActivity
package com.example.json;
import java.util.ArrayList;
import java.util.HashMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Context;
import android.view.Menu;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import java.util.ArrayList;
import java.util.HashMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
public class MainActivity extends Activity {
private String url1 = "http://api.openweathermap.org/data/2.5/weather?q=";
private EditText location,country,temperature,humidity,pressure;
private HandleJSON obj;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
location = (EditText)findViewById(R.id.editText1);
country = (EditText)findViewById(R.id.editText2);
temperature = (EditText)findViewById(R.id.editText3);
humidity = (EditText)findViewById(R.id.editText4);
pressure = (EditText)findViewById(R.id.editText5);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items
//to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void open(View view){
String url = location.getText().toString();
String finalUrl = url1 + url;
country.setText(finalUrl);
obj = new HandleJSON(finalUrl);
obj.fetchJSON();
while(obj.parsingComplete);
country.setText(obj.getCountry());
temperature.setText(obj.getTemperature());
humidity.setText(obj.getHumidity());
pressure.setText(obj.getPressure());
}
}
