Discussion :

[L'aigle de Carthage]

Bonjour,

je suis un newbie en Android et j'essaie de suivre le tuto suivant http://www.androidhive.info/2012/09/...nect-tutorial/ qui permet de s'authentifier au Twitter avec une application android, J'ai crée les packages nécessaires et j'ai copier/coller le code complet (j'ai changé bien évidemment dans les 2 variables "TWITTER_CONSUMER_KEY" et "TWITTER_CONSUMER_SECRET" ).

Mais lorsque j'exécute l'application, elle crash et s'arrête avec le fichier log suivant généré par le logcat d'Eclipse

06-20 19:55:15.071: E/AndroidRuntime(14983): FATAL EXCEPTION: main
06-20 19:55:15.071: E/AndroidRuntime(14983): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.androidhive.twitterconnect/com.androidhive.twitterconnect.MainActivity}: java.lang.ClassNotFoundException: com.androidhive.twitterconnect.MainActivity
06-20 19:55:15.071: E/AndroidRuntime(14983): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1892)
06-20 19:55:15.071: E/AndroidRuntime(14983): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1993)
06-20 19:55:15.071: E/AndroidRuntime(14983): at android.app.ActivityThread.access$600(ActivityThread.java:127)
06-20 19:55:15.071: E/AndroidRuntime(14983): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1159)
06-20 19:55:15.071: E/AndroidRuntime(14983): at android.os.Handler.dispatchMessage(Handler.java:99)
06-20 19:55:15.071: E/AndroidRuntime(14983): at android.os.Looper.loop(Looper.java:137)
06-20 19:55:15.071: E/AndroidRuntime(14983): at android.app.ActivityThread.main(ActivityThread.java:4507)
06-20 19:55:15.071: E/AndroidRuntime(14983): at java.lang.reflect.Method.invokeNative(Native Method)
06-20 19:55:15.071: E/AndroidRuntime(14983): at java.lang.reflect.Method.invoke(Method.java:511)
06-20 19:55:15.071: E/AndroidRuntime(14983): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:980)
06-20 19:55:15.071: E/AndroidRuntime(14983): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747)
06-20 19:55:15.071: E/AndroidRuntime(14983): at dalvik.system.NativeStart.main(Native Method)
06-20 19:55:15.071: E/AndroidRuntime(14983): Caused by: java.lang.ClassNotFoundException: com.androidhive.twitterconnect.MainActivity
06-20 19:55:15.071: E/AndroidRuntime(14983): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
06-20 19:55:15.071: E/AndroidRuntime(14983): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
06-20 19:55:15.071: E/AndroidRuntime(14983): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
06-20 19:55:15.071: E/AndroidRuntime(14983): at android.app.Instrumentation.newActivity(Instrumentation.java:1026)
06-20 19:55:15.071: E/AndroidRuntime(14983): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1883)
06-20 19:55:15.071: E/AndroidRuntime(14983): ... 11 more

C'est quoi le problème avec mon code?

Merci d'avance!

[L'aigle de Carthage]

J'ai bien résolu ce problème, j'ai eu une interface avec un bouton de "login" mais lorsque je clique y dessus, je reçois cette erreur:

06-20 20:22:08.159: E/AndroidRuntime(19867): FATAL EXCEPTION: main
06-20 20:22:08.159: E/AndroidRuntime(19867): android.os.NetworkOnMainThreadException
06-20 20:22:08.159: E/AndroidRuntime(19867): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099)
06-20 20:22:08.159: E/AndroidRuntime(19867): at java.net.InetAddress.lookupHostByName(InetAddress.java:391)
06-20 20:22:08.159: E/AndroidRuntime(19867): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242)
06-20 20:22:08.159: E/AndroidRuntime(19867): at java.net.InetAddress.getAllByName(InetAddress.java:220)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:71)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:351)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:86)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:308)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.makeSslConnection(HttpsURLConnectionImpl.java:460)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.connect(HttpsURLConnectionImpl.java:432)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:282)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:232)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:80)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:188)
06-20 20:22:08.159: E/AndroidRuntime(19867): at libcore.net.http.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:280)
06-20 20:22:08.159: E/AndroidRuntime(19867): at twitter4j.HttpClientImpl.handleRequest(HttpClientImpl.java:137)
06-20 20:22:08.159: E/AndroidRuntime(19867): at twitter4j.HttpClientBase.request(HttpClientBase.java:53)
06-20 20:22:08.159: E/AndroidRuntime(19867): at twitter4j.HttpClientBase.post(HttpClientBase.java:82)
06-20 20:22:08.159: E/AndroidRuntime(19867): at twitter4j.auth.OAuthAuthorization.getOAuthRequestToken(OAuthAuthorization.java:116)
06-20 20:22:08.159: E/AndroidRuntime(19867): at twitter4j.auth.OAuthAuthorization.getOAuthRequestToken(OAuthAuthorization.java:98)
06-20 20:22:08.159: E/AndroidRuntime(19867): at twitter4j.TwitterBaseImpl.getOAuthRequestToken(TwitterBaseImpl.java:287)
06-20 20:22:08.159: E/AndroidRuntime(19867): at com.androidhive.twitterconnect.MainActivity.loginToTwitter(MainActivity.java:237)
06-20 20:22:08.159: E/AndroidRuntime(19867): at com.androidhive.twitterconnect.MainActivity.access$1(MainActivity.java:224)
06-20 20:22:08.159: E/AndroidRuntime(19867): at com.androidhive.twitterconnect.MainActivity$1.onClick(MainActivity.java:124)
06-20 20:22:08.159: E/AndroidRuntime(19867): at android.view.View.performClick(View.java:3620)
06-20 20:22:08.159: E/AndroidRuntime(19867): at android.view.View$PerformClick.run(View.java:14292)
06-20 20:22:08.159: E/AndroidRuntime(19867): at android.os.Handler.handleCallback(Handler.java:605)
06-20 20:22:08.159: E/AndroidRuntime(19867): at android.os.Handler.dispatchMessage(Handler.java:92)
06-20 20:22:08.159: E/AndroidRuntime(19867): at android.os.Looper.loop(Looper.java:137)
06-20 20:22:08.159: E/AndroidRuntime(19867): at android.app.ActivityThread.main(ActivityThread.java:4507)
06-20 20:22:08.159: E/AndroidRuntime(19867): at java.lang.reflect.Method.invokeNative(Native Method)
06-20 20:22:08.159: E/AndroidRuntime(19867): at java.lang.reflect.Method.invoke(Method.java:511)
06-20 20:22:08.159: E/AndroidRuntime(19867): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:980)
06-20 20:22:08.159: E/AndroidRuntime(19867): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747)
06-20 20:22:08.159: E/AndroidRuntime(19867): at dalvik.system.NativeStart.main(Native Method)

[Hizin]

Et l'habituelle NetworkOnMainThreadException qui résulte d'une mauvaise pratique consistant à faire des traitements potentiellement long sur le thread graphique : il ne faut jamais que l'interface graphique ne soit gelé.
Comment résoudre l'erreur : ne pas faire de traitement long dans le thread graphique, donc fait tes appels réseaux dans un Thread séparé. Tu peux te renseigner sur les AsyncTask pour faire ça plus facilement