Chargement XML depuis un site

Version imprimable

Bonjour à tous, j'essaye dans une application de charger un fichier xml depuis un site.

Voici mon code :
Code:

1 2 3 4 5 6 7 URL url = new URL("http://api.androidhive.info/music/music.xml"); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); InputStream in = url.openStream() ; Document doc = db.parse(new InputSource(url.openStream())); doc.getDocumentElement().normalize(); ...
Je travaille avec la version 2.2 d'android.

Mais lorsque je lance mon application je n'arrive pas à me connecter au site.

Il semble que sa soit le url.openStream() qui pose problème.

Avez-vous une solution? Merci d'avance

21/02/2013, 14h15
Feanorin

Bonjour,

As tu un rapport d'erreur dans ton logcat ? Pourrais tu nous le poster?

Merci

Code:

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InputStream in = url.openStream() ;
Document doc = db.parse(new InputSource(url.openStream()));

devrait être

Code:

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InputStream in = url.openStream() ;
Document doc = db.parse(new InputSource(in));

Tous d'abord merci de vos réponses.

Oui il est vrai que cela irait mieux avec ton bous de code nicroman.

Cela dit, rien ne change, j'ai toujours le même problème à la ligne :

Code:

InputStream in = url.openStream() ;

Non Feanorin je n'ai pas d'apport d'erreur dans mon logcat.

J'ai test le code dans un try catch de ma méthode onCreate de mon activty

Voici mon code:
Code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 setContentView(R.layout.main); try { URL url = new URL("http://api.androidhive.info/music/music.xml"); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); Toast.makeText(this, "1", Toast.LENGTH_LONG).show(); InputStream in = url.openStream() ; Toast.makeText(this, "2", Toast.LENGTH_LONG).show(); Document doc = db.parse(new InputSource(in)); Toast.makeText(this, "3", Toast.LENGTH_LONG).show(); doc.getDocumentElement().normalize(); } catch (Exception e) { System.out.println("XML Pasing Excpetion = " + e); }
Seulement la valeur 1 s'affiche à l'écran

22/02/2013, 15h40
Feanorin

Bonjour,

Citation:

Non Feanorin je n'ai pas d'apport d'erreur dans mon logcat.

Donc pas d'exception déjà, on peut enlever de tête l'appel dans le thread Ui et la permission, donc, est ce que tu pourrais nous dire ce que tu as dans la variable in (sa taille et est ce que les donnée présentes sont cohérentes avec ton xml, compare les deux tailles)?

Car sans information c'est compliqué de t'aider...
22/02/2013, 15h56
nicroman
Ceci dit... pas sur qu'il n'y ai pas d'exception:
Avec:
Code:

1 2 System.out.println("XML Pasing Excpetion = " + e);
pas facile de détecter les exceptions....
Remplacer par:
Code:

1 2 Log.e("TAG","XML parsing errror",e);
Au moins, ca ira dans le logcat si il y a une exception.

Ensuite... vu qu'il y a un appel Internet (url.openStream()), j'imagine que le code tourne dans un thread (au moins une AsyncTask), dans ce cas, pas sur que les "Toast" fonctionne très bien... Préférer un simple:
Code:

1 2 Log.d("TAG","Been here... done that...");
A chaque fois que nécessaire.

Pour finir, on ne sait même pas quel est le problème initial...
Le document est vide ? L'InputStream est null ?

Non nicroman mon code ne tourne pas dans un thread, est-ce une erreur de ne pas la faire?

J'ai modifié le code comme tu me la dit, voici mon fichier logCat:

Code:

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02-22 15:10:50.514: I/dalvikvm(796): Debugger is active
02-22 15:10:50.604: I/System.out(796): Debugger has connected
02-22 15:10:50.604: I/System.out(796): waiting for debugger to settle...
02-22 15:10:50.814: I/System.out(796): waiting for debugger to settle...
02-22 15:10:51.014: I/System.out(796): waiting for debugger to settle...
02-22 15:10:51.224: I/System.out(796): waiting for debugger to settle...
02-22 15:10:51.424: I/System.out(796): waiting for debugger to settle...
02-22 15:10:51.634: I/System.out(796): waiting for debugger to settle...
02-22 15:10:51.834: I/System.out(796): waiting for debugger to settle...
02-22 15:10:52.037: I/System.out(796): waiting for debugger to settle...
02-22 15:10:52.234: I/System.out(796): waiting for debugger to settle...
02-22 15:10:52.444: I/System.out(796): waiting for debugger to settle...
02-22 15:10:52.644: I/System.out(796): waiting for debugger to settle...
02-22 15:10:52.899: I/System.out(796): waiting for debugger to settle...
02-22 15:10:53.104: I/System.out(796): waiting for debugger to settle...
02-22 15:10:53.317: I/System.out(796): waiting for debugger to settle...
02-22 15:10:53.525: I/System.out(796): waiting for debugger to settle...
02-22 15:10:53.730: I/System.out(796): debugger has settled (1349)
02-22 15:10:54.104: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:54.104: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:55.314: D/TAG(796): Been here... done that...
02-22 15:10:55.504: E/TAG(796): XML parsing errror
02-22 15:10:55.504: E/TAG(796): android.os.NetworkOnMainThreadException
02-22 15:10:55.504: E/TAG(796): 	at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
02-22 15:10:55.504: E/TAG(796): 	at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
02-22 15:10:55.504: E/TAG(796): 	at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
02-22 15:10:55.504: E/TAG(796): 	at java.net.InetAddress.getAllByName(InetAddress.java:214)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:316)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpEngine.connect(HttpEngine.java:311)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:282)
02-22 15:10:55.504: E/TAG(796): 	at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:177)
02-22 15:10:55.504: E/TAG(796): 	at java.net.URL.openStream(URL.java:462)
02-22 15:10:55.504: E/TAG(796): 	at com.example.acitivtyxml.MainActivity.onCreate(MainActivity.java:41)
02-22 15:10:55.504: E/TAG(796): 	at android.app.Activity.performCreate(Activity.java:5104)
02-22 15:10:55.504: E/TAG(796): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
02-22 15:10:55.504: E/TAG(796): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
02-22 15:10:55.504: E/TAG(796): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
02-22 15:10:55.504: E/TAG(796): 	at android.app.ActivityThread.access$600(ActivityThread.java:141)
02-22 15:10:55.504: E/TAG(796): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
02-22 15:10:55.504: E/TAG(796): 	at android.os.Handler.dispatchMessage(Handler.java:99)
02-22 15:10:55.504: E/TAG(796): 	at android.os.Looper.loop(Looper.java:137)
02-22 15:10:55.504: E/TAG(796): 	at android.app.ActivityThread.main(ActivityThread.java:5039)
02-22 15:10:55.504: E/TAG(796): 	at java.lang.reflect.Method.invokeNative(Native Method)
02-22 15:10:55.504: E/TAG(796): 	at java.lang.reflect.Method.invoke(Method.java:511)
02-22 15:10:55.504: E/TAG(796): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
02-22 15:10:55.504: E/TAG(796): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
02-22 15:10:55.504: E/TAG(796): 	at dalvik.system.NativeStart.main(Native Method)
02-22 15:10:55.644: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:55.654: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:55.804: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:55.854: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.024: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.059: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.074: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.134: I/Choreographer(796): Skipped 40 frames!  The application may be doing too much work on its main thread.
02-22 15:10:56.214: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.214: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.264: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.264: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.284: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.284: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.304: D/gralloc_goldfish(796): Emulator without GPU emulation detected.
02-22 15:10:56.354: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0
02-22 15:10:56.394: W/Trace(796): Unexpected value from nativeGetEnabledTags: 0

Le précèdent était en mode debug, celui là est en mode Run.

Code:

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02-22 15:27:26.286: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.324: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.324: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.574: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.574: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.834: D/TAG(720): Been here... done that...
02-22 15:27:26.864: E/TAG(720): XML parsing errror
02-22 15:27:26.864: E/TAG(720): android.os.NetworkOnMainThreadException
02-22 15:27:26.864: E/TAG(720): 	at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
02-22 15:27:26.864: E/TAG(720): 	at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
02-22 15:27:26.864: E/TAG(720): 	at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
02-22 15:27:26.864: E/TAG(720): 	at java.net.InetAddress.getAllByName(InetAddress.java:214)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:316)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpEngine.connect(HttpEngine.java:311)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:282)
02-22 15:27:26.864: E/TAG(720): 	at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:177)
02-22 15:27:26.864: E/TAG(720): 	at java.net.URL.openStream(URL.java:462)
02-22 15:27:26.864: E/TAG(720): 	at com.example.acitivtyxml.MainActivity.onCreate(MainActivity.java:41)
02-22 15:27:26.864: E/TAG(720): 	at android.app.Activity.performCreate(Activity.java:5104)
02-22 15:27:26.864: E/TAG(720): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
02-22 15:27:26.864: E/TAG(720): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
02-22 15:27:26.864: E/TAG(720): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
02-22 15:27:26.864: E/TAG(720): 	at android.app.ActivityThread.access$600(ActivityThread.java:141)
02-22 15:27:26.864: E/TAG(720): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
02-22 15:27:26.864: E/TAG(720): 	at android.os.Handler.dispatchMessage(Handler.java:99)
02-22 15:27:26.864: E/TAG(720): 	at android.os.Looper.loop(Looper.java:137)
02-22 15:27:26.864: E/TAG(720): 	at android.app.ActivityThread.main(ActivityThread.java:5039)
02-22 15:27:26.864: E/TAG(720): 	at java.lang.reflect.Method.invokeNative(Native Method)
02-22 15:27:26.864: E/TAG(720): 	at java.lang.reflect.Method.invoke(Method.java:511)
02-22 15:27:26.864: E/TAG(720): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
02-22 15:27:26.864: E/TAG(720): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
02-22 15:27:26.864: E/TAG(720): 	at dalvik.system.NativeStart.main(Native Method)
02-22 15:27:26.914: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.914: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.924: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.944: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.994: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.994: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:26.994: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:27.024: I/Choreographer(720): Skipped 30 frames!  The application may be doing too much work on its main thread.
02-22 15:27:27.064: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:27.084: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:27.094: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:27.094: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:27.094: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:27.104: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:27.124: D/gralloc_goldfish(720): Emulator without GPU emulation detected.
02-22 15:27:27.164: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0
02-22 15:27:27.224: W/Trace(720): Unexpected value from nativeGetEnabledTags: 0

22/02/2013, 17h47
Feanorin

:mouarf:

Citation:

E/TAG(720): XML parsing errror
02-22 15:27:26.864: E/TAG(720): android.os.NetworkOnMainThreadException
02-22 15:27:26.864: E/TAG(720): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)

ben tu as bien une exception, à toi maintenant de la corriger :D

Citation:

Non nicroman mon code ne tourne pas dans un thread, est-ce une erreur de ne pas la faire?

Oui c'est interdit de faire un appel au http depuis l'UIThread.

Edit : Je n'avais pas vu le setContentView dans le second post :aie:.

Résolu

Merci à vous Feanorin et nicroman. J'ai pu résoudre mon problème en rajoutant ces lignes de code dans ma méthode on create() :
Code:

1 2 3 4 5 if (android.os.Build.VERSION.SDK_INT > 9) { StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); StrictMode.setThreadPolicy(policy); }
Problème résolu ;)

25/02/2013, 12h36
Feanorin

Citation:

J'ai pu résoudre mon problème en rajoutant ces lignes de code dans ma méthode on create() :

Mais, comment dire si Google s'est embêté à rajouter un exception de ce type ce n'est pas pour que les développeur l'ignore ...

Si il refuse le droit de faire du réseaux à parti du ThreadUI c'est pour une raison qui est que le ThreadUI ne doit pas être bloquant. Donc au lieu de chercher à contourner le problème essaye de le comprendre.

Passe ta connexion réseaux dans un autre Thread que le Thread UI.
25/02/2013, 13h38
nicroman

:aie::aie::aie::aie::aie::aie::aie::aie::aie::aie:

Le système me dit que je fais pas les choses bien... donc.... je "mute" le système... :roll:

Pas possible de faire comme cela? :/
Je ne comprends pas ce que tu veux dire par "Passe ta connexion réseaux dans un autre Thread que le Thread UI".

Est-ce ça? :

Code:

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	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
 
		setContentView(R.layout.activity_main);
		XmlConection();
	}
 
 
	public void XmlConection()
	{
	    runOnUiThread(new Runnable() {
	        public void run()
	        {
	  		  try {
 
					 URL url = new URL("http://api.androidhive.info/music/music.xml");
					 Toast.makeText(MainActivity.this, "-1", Toast.LENGTH_LONG).show();
				        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
				        Toast.makeText(MainActivity.this, "0", Toast.LENGTH_LONG).show();
				        DocumentBuilder db = dbf.newDocumentBuilder();
				        Log.d("TAG","Been here... done that...");
				        Toast.makeText(MainActivity.this, "1", Toast.LENGTH_LONG).show();
				        InputStream in = url.openStream() ;
				        Toast.makeText(MainActivity.this, "2", Toast.LENGTH_LONG).show();
				        Log.d("TAG","Been here... done that...");
 
				       Document doc = db.parse(new InputSource(in));
				       Log.d("TAG","Been here... done that...");
				       Toast.makeText(MainActivity.this, "3", Toast.LENGTH_LONG).show();
 
				        doc.getDocumentElement().normalize();
 
					} catch (Exception e) {
						Log.e("TAG","XML parsing errror",e);
 
					}
	        }
	    });
	}

J'ai essayé aussi ceci, je pense que tu me parlais de ça ?

Code:

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@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
 
		setContentView(R.layout.activity_main);
		XmlConection();
	}
 
 
	public void XmlConection()
	{
		Thread thread = new Thread(new Runnable() {
	        public void run()
	        {
	  		  try {
	  			  	Thread.sleep(100L);
					 URL url = new URL("http://api.androidhive.info/music/music.xml");
					 Toast.makeText(MainActivity.this, "-1", Toast.LENGTH_LONG).show();
				        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
				        Toast.makeText(MainActivity.this, "0", Toast.LENGTH_LONG).show();
				        DocumentBuilder db = dbf.newDocumentBuilder();
				        Log.d("TAG","Been here... done that...");
				        Toast.makeText(MainActivity.this, "1", Toast.LENGTH_LONG).show();
				        InputStream in = url.openStream() ;
				        Toast.makeText(MainActivity.this, "2", Toast.LENGTH_LONG).show();
				        Log.d("TAG","Been here... done that...");
 
				       Document doc = db.parse(new InputSource(in));
				       Log.d("TAG","Been here... done that...");
				       Toast.makeText(MainActivity.this, "3", Toast.LENGTH_LONG).show();
 
				        doc.getDocumentElement().normalize();
 
					} catch (Exception e) {
						Log.e("TAG","XML parsing errror",e);
 
					}
	        }
	    });
		thread.start();
 
	}

25/02/2013, 15h57
Feanorin

La seconde est la réponse :aie:.

En gros toute connexion réseaux ne doit pas se faire dans le Thread UI, dans ton premier exemple le runOnThreadUI est un parfait exemple de ce qui ne faut pas faire :aie:.
25/02/2013, 16h53
V2AlexFacility

Ok je ne le ferais plus alors.. J'ai enlevé tous mes toast et j'ai run, mais j'ai une nouvelle erreur:

Code:

02-25 15:47:06.000: E/Trace(793): error opening trace file: No such file or directory (2)

La connais tu?
25/02/2013, 16h56
Feanorin

Peux tu nous mettre tout ton logcat ?
25/02/2013, 16h56
V2AlexFacility

Citation:

02-25 15:45:48.641: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:48.641: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:48.641: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:48.810: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:48.810: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.230: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.230: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.240: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.270: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.310: D/TAG(742): Been here... done that...
02-25 15:45:49.380: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.380: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.390: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.490: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.490: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.500: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.500: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.510: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.510: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.530: D/gralloc_goldfish(742): Emulator without GPU emulation detected.
02-25 15:45:49.592: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:49.650: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:45:51.560: D/TAG(742): Been here... done that...
02-25 15:45:51.861: D/TAG(742): Been here... done that...
02-25 15:46:58.000: W/Trace(742): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.000: E/Trace(793): error opening trace file: No such file or directory (2)
02-25 15:47:06.000: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.000: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.000: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.210: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.260: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.550: D/TAG(793): Been here... done that...
02-25 15:47:06.610: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.610: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.631: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.640: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.720: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.720: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.730: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.790: I/Choreographer(793): Skipped 47 frames! The application may be doing too much work on its main thread.
02-25 15:47:06.820: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.820: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.830: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.830: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.830: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.830: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.850: D/gralloc_goldfish(793): Emulator without GPU emulation detected.
02-25 15:47:06.880: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:06.960: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:47:07.160: D/TAG(793): Been here... done that...
02-25 15:47:07.750: D/TAG(793): Been here... done that...
02-25 15:56:39.236: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:56:39.246: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:56:39.286: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
02-25 15:56:39.286: W/Trace(793): Unexpected value from nativeGetEnabledTags: 0
25/02/2013, 17h02
nicroman

Non mais c'est pas grave ça... il n'y a pas de trace-file sur emulateur....
Ce n'est d'ailleurs pas une exception...

Sinon, pour ne pas s’embêter avec les Handler et les Thread... il y a les Loader et aussi les AsyncTask....

Non c'est bon le Thread me va, je peux bien me connecter et lire mon fichier xml.

Mais j'ai un autre problème, j'essaye de lire les informations de mon xml ajouté à ma list aTableRetour.

Mais lorsque j'essaye de la lire en dehors de mon thread, rien ne s'affiche parce que ma list est vide.

Voici mon code:

Code:

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		XmlConection();
	}
 
 
	ArrayList<ArrayList> aTableRetour = new ArrayList<ArrayList>();
	public void XmlConection()
	{
		Thread thread = new Thread(new Runnable() {
	        public void run()
	        {
	  		  try {
 
 
					 URL url = new URL("http://www.androidpeople.com/wp-content/uploads/2010/06/example.xml");
 
				        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
 
				        DocumentBuilder db = dbf.newDocumentBuilder();
				        Log.d("TAG","Been here... done that...");
 
				        InputStream in = url.openStream() ;
 
				        Log.d("TAG","Been here... done that...");
 
				        Document  doc = db.parse(new InputSource(in));
				       Log.d("TAG","Been here... done that...");
 
 
				        doc.getDocumentElement().normalize();
 
				      NodeList nodeList = doc.getElementsByTagName("website");
 
				        for (int i = 0; i < nodeList.getLength(); i++) {
				        ArrayList<String>  aTableauTmp =  new ArrayList<String>(); 
				        Element fstElmnt = (Element) nodeList.item(i);
				        aTableauTmp.add(fstElmnt.getAttribute("category"));
				        aTableRetour.add(aTableauTmp);
				        }
 
					} catch (Exception e) {
						Log.e("TAG","XML parsing errror",e);
 
					}
 
 
	        }
	    });
		//thread.start();
	    for(int i=0; i< aTableRetour.size(); i++){
	    	 ArrayList tmp= (ArrayList) aTableRetour.get(i);
	    	 Toast.makeText(MainActivity.this, "Teste",Toast.LENGTH_LONG).show(); 	
		 }

26/02/2013, 11h50
V2AlexFacility

Après être passé en mode debug mon code passe directement de

Code:

Thread thread = new Thread(new Runnable() {

à

Code:

});thread.start();
26/02/2013, 12h10
Feanorin

Bonjour,

je te conseille de lire ce tutoriel pour utiliser des Threads ;)
http://mathias-seguy.developpez.com/...async_memleak/

Oui parce que le code (à l’extérieur du thread) est exécute immédiatement, avant même que le thread n'aie pu vraiment démarrer...
Donc la liste est toujours vide...

Non.. franchement, utilise un AsyncTask pour ce que tu veux faire....
L'UI ne peut être modifiée depuis un thread autre que le thread UI.
Le thread UI n'a pas le droit de faire des opération longue.
La classe qui relie les deux: c'est AsyncTask (ou les Loader mais bon...).

(template de code, il ne compile pas, c'est juste pour montrer !)
Code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 class MyActivity extends Activity { public void onCreate() { super.onCreate(); ... new AsyncTask<String,ArrayList<ArrayList<String>,Void>() { @Override public ArrayList<ArrayList<String>> doInBackground() { ... le code de ton "thread", avec un return de l'array-list finale à la fin... PAS D'UTILISATION DE VARIABLE DE MY-ACTIVITY } @Override public void onPostExecute(ArrayList<ArrayList<String>>) { ... modification de l'UI... car ici, on est dans le bon thread UI ! } }.execute(); } }

D'accord, j'ai suivi tes conseils et j'ai utilisé un AsyncTask.
Mais bien sûr ça ne marche pas..
Je ne rentre même pas dans mon AsyncTask

Voici mon code:

Code:

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	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
 
		new MyAsyncTask().execute();
 
	}
 
	private class MyAsyncTask extends AsyncTask<Void, Void, ArrayList<ArrayList>> {
 
        protected ArrayList<ArrayList> doInBackground(Void... params) {
 
     	 try {
 
 
				 URL url = new URL("http://www.androidpeople.com/wp-content/uploads/2010/06/example.xml");
 
			        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
 
			        DocumentBuilder db = dbf.newDocumentBuilder();
			        Log.d("TAG","Been here... done that...");
 
			        InputStream in = url.openStream() ;
 
			        Log.d("TAG","Been here... done that...");
 
			        Document doc = db.parse(new InputSource(in));
			       Log.d("TAG","Been here... done that...");
 
 
			        doc.getDocumentElement().normalize();
 
			      NodeList nodeList = doc.getElementsByTagName("website");
 
 
			      //  NodeList nodeList = doc.getElementsByTagName("item");
			        for (int i = 0; i < nodeList.getLength(); i++) {
			         ArrayList<String>  aTableauTmp =  new ArrayList<String>(); 
			        aTableauTmp =  new ArrayList<String>(); 
			        Node node = nodeList.item(i);
			        Element fstElmnt = (Element) node;
			        aTableauTmp.add(fstElmnt.getAttribute("category"));
			        aTableRetour.add(aTableauTmp);
 
 
			        }
 
				} catch (Exception e) {
					Log.e("TAG","XML parsing errror",e);
 
				}
            return aTableRetour;
 
        }

26/02/2013, 17h33
nicroman

Avec ce code, tu rentres forcément dans l'AsyncTask... avec des Log appropriés...

Oui effectivement après avoir inséré un toast dans ma méthode onPostExecute(Void result), j'ai pu constater que je rentrais bien dans mon AsyncTask.

C'est bon je suis enfin arrivé à remplir mon arrayList avec les données de mon XML.

Voici mon code:

Code:

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public class MainActivity extends Activity {
 
 
	ArrayList<ArrayList> aTableRetour = new ArrayList<ArrayList>();
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		new MyAsyncTask().execute();
	}
 
 
	private class MyAsyncTask extends AsyncTask<Void, Void, Void> {
 
        protected Void doInBackground(Void... params) {
     	 try {
 				 URL url = new URL("http://www.androidpeople.com/wp-content/uploads/2010/06/example.xml");
 
			        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
 
			        DocumentBuilder db = dbf.newDocumentBuilder();
			        Log.d("TAG","Been here... done that...");
 
			        InputStream in = url.openStream() ;
 
			        Log.d("TAG","Been here... done that...");
 
			        Document doc = db.parse(new InputSource(in));
			       Log.d("TAG","Been here... done that...");
 
 
			        doc.getDocumentElement().normalize();
 
			      NodeList nodeList = doc.getElementsByTagName("website");
 
			        for (int i = 0; i < nodeList.getLength(); i++) {
			         ArrayList<String>  aTableauTmp =  new ArrayList<String>(); 
			        aTableauTmp =  new ArrayList<String>(); 
			        Node node = nodeList.item(i);
			        Element fstElmnt = (Element) node;
			        aTableauTmp.add(fstElmnt.getAttribute("category"));
			        aTableRetour.add(aTableauTmp);
			        }
 
				} catch (Exception e) {
					Log.e("TAG","XML parsing errror",e);
				}
 
        	return null;
        }
 
        protected void onProgressUpdate( Void... progress) {
 
        }
 
        protected void onPostExecute(Void result) {
 
        	 for (ArrayList v : aTableRetour)
        	 {
        		 Toast.makeText(MainActivity.this, v.get(0).toString(), 0).show(); 
        	 }
 
        }

Je pense que maintenant c'est bon et qu'il n'y a plus de fautes.

Merci beaucoup ;).