J'ai des problèmes avec mon application. Peu de temps après la compilation, l'application se ferme aléatoirement. La vérification de LogCat montre qu'il s'agit d'une exception java.lang.RuntimeException. J'ai parcouru tous les messages du forum à ce sujet, et j'ai changé mon code en conséquence, mais le problème persiste. Aidez-moi?java.lang.RuntimeException avec l'application android
code:
public class DroidzActivity extends Activity implements OnGesturePerformedListener {
/** Called when the activity is first created. */
private GestureLibrary mLibrary;
private static final String TAG = MainThread.class.getSimpleName();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new MainGamePanel(this));
//requesting to turn the title OFF
//requestWindowFeature(Window.FEATURE_NO_TITLE);
//make it full screen
//getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
// set the MainGamePanel as the View
Log.d(TAG, "View added");
mLibrary = GestureLibraries.fromRawResource(this, R.raw.gestures);
if (!mLibrary.load()) {
finish();
}
GestureOverlayView gestures = (GestureOverlayView) findViewById(R.id.gestures);
gestures.addOnGesturePerformedListener(this);
}
@Override
protected void onDestroy() {
Log.d(TAG, "Destroying...");
super.onDestroy();
}
@Override
protected void onStop() {
Log.d(TAG, "Stopping...");
super.onStop();
}
public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {
ArrayList<Prediction> predictions = mLibrary.recognize(gesture);
if (predictions.size() > 0) {
if (predictions.get(0).score > 1.0) {
String action = predictions.get(0).name;
if ("action_add".equals(action)) {
Toast.makeText(this, "Adding a contact", Toast.LENGTH_SHORT).show();
} else if ("action_delete".equals(action)) {
Toast.makeText(this, "Removing a contact", Toast.LENGTH_SHORT).show();
} else if ("action_refresh".equals(action)) {
Toast.makeText(this, "Reloading contacts", Toast.LENGTH_SHORT).show();
}
}
}
}
LogCat:
02-08 23:16:54.898: D/MainThread(3027): View added
02-08 23:16:54.937: D/AndroidRuntime(3027): Shutting down VM
02-08 23:16:54.937: W/dalvikvm(3027): threadid=1: thread exiting with uncaught exception (group=0x40015578)
02-08 23:16:54.949: E/AndroidRuntime(3027): FATAL EXCEPTION: main
02-08 23:16:54.949: E/AndroidRuntime(3027): java.lang.RuntimeException: Unable to start activity ComponentInfo{net.obviam.droidz/net.obviam.droidz.DroidzActivity}: java.lang.NullPointerException
02-08 23:16:54.949: E/AndroidRuntime(3027): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
02-08 23:16:54.949: E/AndroidRuntime(3027): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
02-08 23:16:54.949: E/AndroidRuntime(3027): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
02-08 23:16:54.949: E/AndroidRuntime(3027): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
02-08 23:16:54.949: E/AndroidRuntime(3027): at android.os.Handler.dispatchMessage(Handler.java:99)
02-08 23:16:54.949: E/AndroidRuntime(3027): at android.os.Looper.loop(Looper.java:130)
02-08 23:16:54.949: E/AndroidRuntime(3027): at android.app.ActivityThread.main(ActivityThread.java:3687)
02-08 23:16:54.949: E/AndroidRuntime(3027): at java.lang.reflect.Method.invokeNative(Native Method)
02-08 23:16:54.949: E/AndroidRuntime(3027): at java.lang.reflect.Method.invoke(Method.java:507)
02-08 23:16:54.949: E/AndroidRuntime(3027): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
02-08 23:16:54.949: E/AndroidRuntime(3027): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
02-08 23:16:54.949: E/AndroidRuntime(3027): at dalvik.system.NativeStart.main(Native Method)
02-08 23:16:54.949: E/AndroidRuntime(3027): Caused by: java.lang.NullPointerException
02-08 23:16:54.949: E/AndroidRuntime(3027): at net.obviam.droidz.DroidzActivity.onCreate(DroidzActivity.java:42)
02-08 23:16:54.949: E/AndroidRuntime(3027): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
02-08 23:16:54.949: E/AndroidRuntime(3027): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
02-08 23:16:54.949: E/AndroidRuntime(3027): ... 11 more
Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="net.obviam.droidz"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="10" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" android:debuggable="true">
<activity
android:name=".DroidzActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Veuillez télécharger votre code et le fichier manifeste. –
S'il vous plaît poster votre logcat et le code entier. – Ghost
Si vous lisez l'exception dans LogCat, vous trouverez probablement une ou plusieurs lignes "Caused by" suivies d'une autre exception. Trouvez le dernier "Causé par" et publiez l'exception qui le suit. C'est le problème original. Veuillez le signaler ici et nous pouvons vous aider. –