Discussion :

[nhmidi]

Bonsoir;

je suis entraîne de coder la partie du calcul d’itinéraire dans mon projet ,j'ai une erreur qui ferme tout.et voici LogCat::

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02-24 23:38:20.869: E/AndroidRuntime(2858): FATAL EXCEPTION: main
02-24 23:38:20.869: E/AndroidRuntime(2858): java.lang.IllegalStateException: Could not execute method of the activity
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at android.view.View$1.onClick(View.java:3597)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at android.view.View.performClick(View.java:4202)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at android.view.View$PerformClick.run(View.java:17340)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at android.os.Handler.handleCallback(Handler.java:725)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at android.os.Handler.dispatchMessage(Handler.java:92)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at android.os.Looper.loop(Looper.java:137)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at android.app.ActivityThread.main(ActivityThread.java:5039)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at java.lang.reflect.Method.invokeNative(Native Method)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at java.lang.reflect.Method.invoke(Method.java:511)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at dalvik.system.NativeStart.main(Native Method)
02-24 23:38:20.869: E/AndroidRuntime(2858): Caused by: java.lang.reflect.InvocationTargetException
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at java.lang.reflect.Method.invokeNative(Native Method)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at java.lang.reflect.Method.invoke(Method.java:511)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at android.view.View$1.onClick(View.java:3592)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	... 11 more
02-24 23:38:20.869: E/AndroidRuntime(2858): Caused by: android.os.NetworkOnMainThreadException
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at java.net.InetAddress.getAllByName(InetAddress.java:214)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:316)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpEngine.connect(HttpEngine.java:311)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:81)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at com.example.bissgeolocalistor.Path.DrawPath(Path.java:51)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	at com.example.bissgeolocalistor.MainActivity.calcRoute(MainActivity.java:38)
02-24 23:38:20.869: E/AndroidRuntime(2858): 	... 14 more
02-24 23:38:20.896: D/dalvikvm(2858): GC_CONCURRENT freed 82K, 6% free 3557K/3760K, paused 75ms+127ms, total 278ms
02-24 23:38:22.956: D/dalvikvm(2858): GC_CONCURRENT freed 68K, 6% free 3919K/4160K, paused 6ms+83ms, total 939ms
02-24 23:38:22.956: D/dalvikvm(2858): WAIT_FOR_CONCURRENT_GC blocked 738ms
02-24 23:38:25.257: I/Process(2858): Sending signal. PID: 2858 SIG: 9

la class MainActivity::

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package com.example.bissgeolocalistor;
 
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
 
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
 
public class MainActivity extends MapActivity {
 
	private MapView mapView;
	private MapController mc;
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		mapView = (MapView) this.findViewById(R.id.mapView);
		mapView.setBuiltInZoomControls(true);
		mc = mapView.getController();
		mc.setZoom(17);
	}
 
    public void calcRoute(View v)
    {
		double src_lat = 25.04202;
		double src_long = 121.534761;
		double dest_lat = 25.05202;
		double dest_long = 121.554761;
		GeoPoint srcGeoPoint = new GeoPoint((int) (src_lat * 1E6),
				(int) (src_long * 1E6));
		GeoPoint destGeoPoint = new GeoPoint((int) (dest_lat * 1E6),
				(int) (dest_long * 1E6));
		mapView.getController().animateTo(srcGeoPoint);
		Path a= new Path();
		a.DrawPath(srcGeoPoint, destGeoPoint, Color.BLACK, mapView);
 
    }
 
	@Override
	protected boolean isRouteDisplayed() {
		// TODO Auto-generated method stub
		return false;
	}
 
}

el la class Path::::

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package com.example.bissgeolocalistor;
 
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
 
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
 
import android.util.Log;
 
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapView;
 
public class Path {
 
 
	public Path() {
	}
	public void DrawPath(GeoPoint src, GeoPoint dest, int color,MapView mapView) {
		// connect to map web service
		StringBuilder urlString = new StringBuilder();
		urlString.append("http://maps.google.com/maps?f=d&hl=en");
		urlString.append("&saddr=");// from
		urlString.append(Double.toString((double) src.getLatitudeE6() / 1.0E6));
		urlString.append(",");
		urlString.append(Double.toString((double) src.getLongitudeE6() / 1.0E6));
		urlString.append("&daddr=");// to
		urlString.append(Double.toString((double) dest.getLatitudeE6() / 1.0E6));
		urlString.append(",");
		urlString.append(Double.toString((double) dest.getLongitudeE6() / 1.0E6));
		urlString.append("&ie=UTF8&0&om=0&output=kml");
 
		Log.d("xxx", "URL=" + urlString.toString());
 
		// get the kml (XML) doc. And parse it to get the coordinates(direction
		// route).
		Document doc = null;
		HttpURLConnection urlConnection = null;
		URL url = null;
		try {
			url = new URL(urlString.toString());
			urlConnection = (HttpURLConnection) url.openConnection();
			urlConnection.setRequestMethod("GET");
			urlConnection.setDoOutput(true);
			urlConnection.setDoInput(true);
			urlConnection.connect();
 
			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
			DocumentBuilder db = dbf.newDocumentBuilder();
			doc = db.parse(urlConnection.getInputStream());
 
			if (doc.getElementsByTagName("GeometryCollection").getLength() > 0) {
 
				// String path =
				// doc.getElementsByTagName("GeometryCollection").item(0).getFirstChild().getFirstChild().getNodeName();
				String path = doc.getElementsByTagName("GeometryCollection")
						.item(0).getFirstChild().getFirstChild()
						.getFirstChild().getNodeValue();
 
				Log.d("xxx", "path=" + path);
 
				String[] pairs = path.split(" ");
				String[] lngLat = pairs[0].split(","); // lngLat[0]=longitude
														// lngLat[1]=latitude
														// lngLat[2]=height
 
				// src
				GeoPoint startGP = new GeoPoint((int) (Double
						.parseDouble(lngLat[1]) * 1E6), (int) (Double
						.parseDouble(lngLat[0]) * 1E6));
				mapView.getOverlays()
						.add(new MyOverLay(startGP, startGP, 1));
 
				GeoPoint gp1;
				GeoPoint gp2 = startGP;
				for (int i = 1; i < pairs.length; i++) // the last one would be
														// crash
				{
					lngLat = pairs[i].split(",");
					gp1 = gp2;
					// watch out! For GeoPoint, first:latitude, second:longitude
					gp2 = new GeoPoint(
							(int) (Double.parseDouble(lngLat[1]) * 1E6),
							(int) (Double.parseDouble(lngLat[0]) * 1E6));
					mapView.getOverlays().add(
							new MyOverLay(gp1, gp2, 2, color));
 
					Log.d("xxx", "pair:" + pairs[i]);
 
				}
				mapView.getOverlays().add(new MyOverLay(dest, dest, 3)); // use
																			// the
																			// default
																			// color
			}
		} catch (MalformedURLException e) {
 
			e.printStackTrace();
		} catch (IOException e) {
 
			e.printStackTrace();
		} catch (ParserConfigurationException e) {
 
			e.printStackTrace();
 
		} catch (SAXException e) {
 
			e.printStackTrace();
		}
 
	}
}

et androidmanifest::

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.bissgeolocalistor"
    android:versionCode="1"
    android:versionName="1.0" >
 
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
 
        <activity
            android:name="com.example.bissgeolocalistor.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <uses-library android:name="com.google.android.maps" />
    </application>
     <uses-permission android:name="android.permission.INTERNET" />
</manifest>

Si quelqu'un pouvait au moins me donner une piste

Cordialement

[Hizin]

NetworkOnMainThreadException.

Ceci indique que tu fais une opération réseau dans le thread principal, ce qui est une mauvaise pratique en général, et qui est sanctionnée d'une exception sur Android.

Le problème, comme indiqué par cette ligne :

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02-24 23:38:20.869: E/AndroidRuntime(2858): 	at com.example.bissgeolocalistor.Path.DrawPath(Path.java:51)

provient de ta méthode drawPath :

Code Java :

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	public void DrawPath(GeoPoint src, GeoPoint dest, int color,MapView mapView) {
		// connect to map web service
		StringBuilder urlString = new StringBuilder();
		urlString.append("http://maps.google.com/maps?f=d&hl=en");
		urlString.append("&saddr=");// from
		urlString.append(Double.toString((double) src.getLatitudeE6() / 1.0E6));
		urlString.append(",");
		urlString.append(Double.toString((double) src.getLongitudeE6() / 1.0E6));
		urlString.append("&daddr=");// to
		urlString.append(Double.toString((double) dest.getLatitudeE6() / 1.0E6));
		urlString.append(",");
		urlString.append(Double.toString((double) dest.getLongitudeE6() / 1.0E6));
		urlString.append("&ie=UTF8&0&om=0&output=kml");
 
		Log.d("xxx", "URL=" + urlString.toString());
 
		// get the kml (XML) doc. And parse it to get the coordinates(direction
		// route).
		Document doc = null;
		HttpURLConnection urlConnection = null;
		URL url = null;
		try {
			url = new URL(urlString.toString());
			urlConnection = (HttpURLConnection) url.openConnection();
			urlConnection.setRequestMethod("GET");
			urlConnection.setDoOutput(true);
			urlConnection.setDoInput(true);
			urlConnection.connect();
 
			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
			DocumentBuilder db = dbf.newDocumentBuilder();
			doc = db.parse(urlConnection.getInputStream());
 
			if (doc.getElementsByTagName("GeometryCollection").getLength() > 0) {
 
				// String path =
				// doc.getElementsByTagName("GeometryCollection").item(0).getFirstChild().getFirstChild().getNodeName();
				String path = doc.getElementsByTagName("GeometryCollection")
						.item(0).getFirstChild().getFirstChild()
						.getFirstChild().getNodeValue();
 
				Log.d("xxx", "path=" + path);
 
				String[] pairs = path.split(" ");
				String[] lngLat = pairs[0].split(","); // lngLat[0]=longitude
														// lngLat[1]=latitude
														// lngLat[2]=height
 
				// src
				GeoPoint startGP = new GeoPoint((int) (Double
						.parseDouble(lngLat[1]) * 1E6), (int) (Double
						.parseDouble(lngLat[0]) * 1E6));
				mapView.getOverlays()
						.add(new MyOverLay(startGP, startGP, 1));
 
				GeoPoint gp1;
				GeoPoint gp2 = startGP;
				for (int i = 1; i < pairs.length; i++) // the last one would be
														// crash
				{
					lngLat = pairs[i].split(",");
					gp1 = gp2;
					// watch out! For GeoPoint, first:latitude, second:longitude
					gp2 = new GeoPoint(
							(int) (Double.parseDouble(lngLat[1]) * 1E6),
							(int) (Double.parseDouble(lngLat[0]) * 1E6));
					mapView.getOverlays().add(
							new MyOverLay(gp1, gp2, 2, color));
 
					Log.d("xxx", "pair:" + pairs[i]);
 
				}
				mapView.getOverlays().add(new MyOverLay(dest, dest, 3)); // use
																			// the
																			// default
																			// color
			}
		} catch (MalformedURLException e) {
 
			e.printStackTrace();
		} catch (IOException e) {
 
			e.printStackTrace();
		} catch (ParserConfigurationException e) {
 
			e.printStackTrace();
 
		} catch (SAXException e) {
 
			e.printStackTrace();
		}
 
	}

Tout traitement réseau (et par extension : tout traitement potentiellement long risquant de faire geler l'interface utilisateur) est à faire dans un thread séparé.

Je te suggère donc de passer ton appel réseau dans une AsyncTask, ou dans un thread.

À côté de ça, ton log des erreurs devrait plutôt être Log.e(TAG, MESSAGE, exception) et tu ne fermes pas les flux que tu ouvres.