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import javax.microedition.midlet.*;
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import javax.microedition.lcdui.*;
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import javax.microedition.location.*;
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import javax.microedition.io.*;
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import javax.microedition.location.*;
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import java.io.*;
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public class Geocoder extends MIDlet implements CommandListener
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{
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public Display display;
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public Form form;
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private Command cmdExit,cmdOK;
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public StringItem si, sili;
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public Geocoder()
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{
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display =Display.getDisplay(this);
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form = new Form("Location Api test");
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cmdExit = new Command("Exit",Command.EXIT,5);
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cmdOK = new Command("OK",Command.OK,1);
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si = new StringItem("Coordinates", "Press OK");
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sili = new StringItem("Location", "");
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form.append(si);
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form.append(sili);
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form.addCommand(cmdOK);
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form.addCommand(cmdExit);
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form.setCommandListener(this);
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}
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public void startApp()
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{
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display.setCurrent(form);
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}
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public void pauseApp()
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{}
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public void destroyApp(boolean flag) {
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notifyDestroyed();
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}
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public void commandAction(Command c, Displayable d)
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{
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if (c == cmdOK){
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Retriever ret = new Retriever(this);
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ret.start();
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} else if (c == cmdExit) {
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destroyApp(false);
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}
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}
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public void displayString
(String string
)
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{
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si.setText(string);
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}
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public void showAlert
(String message
) {
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Alert alert = new Alert("Alert",message,null,AlertType.WARNING);
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display.setCurrent(alert,form);
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}
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}
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class Retriever
extends Thread {
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private Geocoder midlet;
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Form formRunning;
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Gauge gauge;
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public Retriever(Geocoder midlet)
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{
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/**
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* Constructor
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*
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* EFFECTS: Initialise the server and store midlet information
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*
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* @param midlet The main application midlet
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* @param server Forecast Server URL
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*
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*/
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this.midlet = midlet;
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formRunning = new Form("Retrieving Info");
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formRunning.append(new Gauge("Processing",false,Gauge.INDEFINITE,Gauge.CONTINUOUS_RUNNING));
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midlet.display.setCurrent(formRunning);
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}
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public void run()
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{
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/**
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* Entry point of the thread
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*
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* EFFECTS: call to connect() method
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*/
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try {
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checkLocation();
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{
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ex.printStackTrace();
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midlet.displayString(ex.toString());
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} finally {
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}
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}
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{
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Location l;
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LocationProvider lp;
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Coordinates c;
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// Set criteria for selecting a location provider:
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// accurate to 500 meters horizontally
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Criteria cr= new Criteria();
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cr.setHorizontalAccuracy(5000);
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cr.setVerticalAccuracy(5000);
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// Get an instance of the provider
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lp= LocationProvider.getInstance(cr);
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// Request the location, setting a one-minute timeout
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l = lp.getLocation(120);
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c = l.getQualifiedCoordinates();
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if(c != null ) {
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// Use coordinate information
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double lat = c.getLatitude();
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double lon = c.getLongitude();
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string = "\nLatitude : " + lat + "\nLongitude : " + lon;
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new GetData(midlet,lat,lon).start();
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} else {
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string ="Location API failed";
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}
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formRunning.append("Obtained coordinates...");
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midlet.displayString(string);
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}
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}
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class GetData
implements Runnable,CommandListener
{
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Geocoder midlet;
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double lat, lon;
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public GetData (Geocoder midlet, double lat, double lon) {
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this.lat = lat;
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this.lon = lon;
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this.midlet = midlet;
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}
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public void commandAction (Command cmd,Displayable disp)
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{
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}
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public void start() {
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t.start();
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}
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public void run() {
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HttpConnection conn=null;
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try {
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String sUrl =
"http://tinygeocoder.com/create-api.php?g="+
""+lat+
","+
""+lon;
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conn = (HttpConnection) Connector.open(sUrl,Connector.READ);
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if (conn.getResponseCode() == HttpConnection.HTTP_OK) {
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is = conn.openInputStream();
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byte buf[] = new byte[128];
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int total =0;
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while (total <128) {
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int count = is.read(buf,total,128-total);
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if (count<0) {
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break;
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}
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total += count;
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}
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if (sb.length() <10) {
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midlet.showAlert("Connection error, please try again");
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is.close();
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conn.close();
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return;
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}
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midlet.sili.setText(sb);
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//midlet.form.append(sb);
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//vectorized();
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//midlet.saveCurrency(false,midlet.vector);
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//midlet.display.setCurrent(midlet.form);
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} else if (conn.getResponseCode() == HttpConnection.HTTP_NOT_FOUND) {
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midlet.showAlert("URL not found");
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} else {
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midlet.showAlert("Server busy or unavailable. Please try again later");
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}
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midlet.showAlert("Connection failed. You need to authorize this application to access network");
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midlet.showAlert("Connection failed. Please try again later.");
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midlet.showAlert(e.toString());
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e.printStackTrace();
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//midlet.display.setCurrent(midlet.form);
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} finally {
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try {
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if (is != null) {
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is.close();
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}
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if (conn != null) {
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conn.close();
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}
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is =null;
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conn =null;
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midlet.display.setCurrent(midlet.form);
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}
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}
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{
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if (s!=null) {
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int i=0;
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try {
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while (true) {
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int b = (int)s.charAt(i++);
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if ((b>=0x30 && b<=0x39) || (b>=0x41 && b<=0x5A) || (b>=0x61 && b<=0x7A)) {
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tmp.append((char)b);
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}
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else {
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tmp.append("%");
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if (b <= 0xf) tmp.append("0");
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tmp.
append(Integer.
toHexString(b
));
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}
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}
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}
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return tmp.toString();
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}
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return null;
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}
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}
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