Android: Crash lors de la rotation, de la verticale à l'horizontale

Je suis en train de jouer autour avec android, et je suis la création d'une simple application twitter pour tester ce que j'ai appris jusqu'à présent. Mais j'ai rencontré un problème que je ne comprends pas. J'ai créé un thread pour récupérer les tweets, pas de problèmes, mais ensuite ajouté un ProgressDialog à afficher lorsque le thread est en cours d'exécution. Ce faisant causé un très un comportement inhabituel. Si l'utilisateur fait pivoter à partir d'orientation Verticale, à l'horizontale, le programme se comporte comme prévu, pas de problèmes, mais si il tourne alors le dos, le programme se bloque en disant une fenêtre de fuite.

Le problème se produit uniquement sur une verticale à l'horizontale, de changement de disposition. Je sais que des questions si vous essayez de tourner lorsque la boîte de dialogue est en cours d'exécution, mais je l'ai fait en sorte que la boîte de dialogue a fini de s'exécuter, et a rejeté avant la rotation et toujours en panne. Voilà mon code:

package com.onesmartpuppy.puppytweet;
import java.util.ArrayList;
import com.github.droidfu.widgets.WebImageView;
import winterwell.jtwitter.Twitter;
import winterwell.jtwitter.Twitter.Status;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.TextView;
public class PuppyTweet extends ListActivity implements OnClickListener {
private ProgressDialog m_ProgressDialog = null;
private ArrayList<Status> messages = null;
private TweetAdapter m_adapter;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
messages = new ArrayList<Status>();
this.m_adapter = new TweetAdapter(this, R.layout.row, messages);
setListAdapter(this.m_adapter);
setupButtons();
m_ProgressDialog = ProgressDialog.show(this,    
"Please wait...", "Retrieving tweets ...", true);
Runnable findTweets = new Runnable(){
@Override
public void run() {
try {
messages = new ArrayList<Status>();
Twitter ourTwitter = new Twitter("*****", "******");
messages = (ArrayList<Status>) ourTwitter.getFriendsTimeline();
Thread.sleep(1000);
Log.i("ARRAY", ""+ messages.size());
} catch (Exception e) {
Log.e("BACKGROUND_PROC", e.getMessage());
}
handler.sendEmptyMessage(0);   
}
};
Thread thread =  new Thread(null, findTweets, "FindTweets");
thread.start();
}
private void setupButtons()
{
Button refreshButton = (Button) findViewById(R.id.refresh_button);
refreshButton.setOnClickListener(this);
Button settingsButton = (Button) findViewById(R.id.settings_button);
settingsButton.setOnClickListener(this);
Button tweetButton = (Button) findViewById(R.id.update_button);
tweetButton.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId())
{
case R.id.settings_button:
break;
case R.id.update_button:
break;
case R.id.refresh_button:
break;
default:
break;
}
}
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
if(messages != null && messages.size() > 0){
m_adapter.clear();
m_adapter.notifyDataSetChanged();
for(int i=0;i<messages.size();i++)
m_adapter.add(messages.get(i));
}
m_ProgressDialog.dismiss();
m_adapter.notifyDataSetChanged();
}
};
private class TweetAdapter extends ArrayAdapter<Status> {
private ArrayList<Status> items;
public TweetAdapter(Context context, int textViewResourceId, ArrayList<Status> items) {
super(context, textViewResourceId, items);
this.items = items;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.row2, null);
}
Status o = (Status) items.get(position);
if (o != null) {
WebImageView img = (WebImageView) v.findViewById(R.id.webimage);                   
TextView tt = (TextView) v.findViewById(R.id.toptext);
TextView bt = (TextView) v.findViewById(R.id.bottomtext);
if (tt != null) {
tt.setText("Name: " + o.user.name);                            }
if(bt != null){
bt.setText("Status: " + o.getText());
}
if (img !=null) {
img.setImageUrl(o.getUser().profileImageUrl.toString());
img.loadImage();
}
}
return v;
}
}
}

heres le LogCat de l'endroit où il se bloque:

02-10 16:01:05.237: INFO/ActivityManager(63): Config changed: { scale=1.0 imsi=310/260 loc=ld_US touch=3 keys=2/1/2 nav=3/1 orien=2 layout=18}
02-10 16:01:05.344: WARN/UsageStats(63): Something wrong here, didn't expect com.onesmartpuppy.puppytweet to be resumed
02-10 16:01:05.384: INFO/WindowManager(63): Setting rotation to 0, animFlags=0
02-10 16:01:05.394: INFO/ActivityManager(63): Config changed: { scale=1.0 imsi=310/260 loc=ld_US touch=3 keys=2/1/2 nav=3/1 orien=1 layout=18}
02-10 16:01:05.504: WARN/UsageStats(63): Something wrong here, didn't expect com.onesmartpuppy.puppytweet to be resumed
02-10 16:01:05.704: ERROR/WindowManager(227): Activity com.onesmartpuppy.puppytweet.PuppyTweet has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@43af9490 that was originally added here
02-10 16:01:05.704: ERROR/WindowManager(227): android.view.WindowLeaked: Activity com.onesmartpuppy.puppytweet.PuppyTweet has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@43af9490 that was originally added here
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.view.ViewRoot.<init>(ViewRoot.java:227)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.view.Window$LocalWindowManager.addView(Window.java:424)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.Dialog.show(Dialog.java:239)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.ProgressDialog.show(ProgressDialog.java:107)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.ProgressDialog.show(ProgressDialog.java:90)
02-10 16:01:05.704: ERROR/WindowManager(227):     at com.onesmartpuppy.puppytweet.PuppyTweet.onCreate(PuppyTweet.java:39)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2417)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2470)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3573)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.ActivityThread.access$2300(ActivityThread.java:119)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1825)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.os.Looper.loop(Looper.java:123)
02-10 16:01:05.704: ERROR/WindowManager(227):     at android.app.ActivityThread.main(ActivityThread.java:4310)
02-10 16:01:05.704: ERROR/WindowManager(227):     at java.lang.reflect.Method.invokeNative(Native Method)
02-10 16:01:05.704: ERROR/WindowManager(227):     at java.lang.reflect.Method.invoke(Method.java:521)
02-10 16:01:05.704: ERROR/WindowManager(227):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
02-10 16:01:05.704: ERROR/WindowManager(227):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
02-10 16:01:05.704: ERROR/WindowManager(227):     at dalvik.system.NativeStart.main(Native Method)
02-10 16:01:06.344: INFO/global(227): Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required.
02-10 16:01:06.624: DEBUG/dalvikvm(227): GC freed 6082 objects / 479568 bytes in 77ms
02-10 16:01:07.374: DEBUG/dalvikvm(227): GC freed 11982 objects / 709808 bytes in 83ms
02-10 16:01:07.394: INFO/global(227): Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required.
02-10 16:01:07.564: DEBUG/dalvikvm(227): GC freed 95 objects / 79880 bytes in 68ms
02-10 16:01:07.704: DEBUG/dalvikvm(227): GC freed 8 objects / 38992 bytes in 65ms
02-10 16:01:08.174: DEBUG/dalvikvm(63): GC freed 5407 objects / 257208 bytes in 174ms
02-10 16:01:08.194: INFO/ARRAY(227): 20
02-10 16:01:08.204: DEBUG/AndroidRuntime(227): Shutting down VM
02-10 16:01:08.204: WARN/dalvikvm(227): threadid=3: thread exiting with uncaught exception (group=0x4001b188)
02-10 16:01:08.204: ERROR/AndroidRuntime(227): Uncaught handler: thread main exiting due to uncaught exception
02-10 16:01:08.214: ERROR/AndroidRuntime(227): java.lang.IllegalArgumentException: View not attached to window manager
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:355)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:200)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.view.Window$LocalWindowManager.removeView(Window.java:432)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.app.Dialog.dismissDialog(Dialog.java:280)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.app.Dialog.access$000(Dialog.java:73)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.app.Dialog$1.run(Dialog.java:109)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.app.Dialog.dismiss(Dialog.java:264)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at com.onesmartpuppy.puppytweet.PuppyTweet$1.handleMessage(PuppyTweet.java:104)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.os.Looper.loop(Looper.java:123)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at android.app.ActivityThread.main(ActivityThread.java:4310)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at java.lang.reflect.Method.invokeNative(Native Method)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at java.lang.reflect.Method.invoke(Method.java:521)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
02-10 16:01:08.214: ERROR/AndroidRuntime(227):     at dalvik.system.NativeStart.main(Native Method)
02-10 16:01:08.244: INFO/Process(63): Sending signal. PID: 227 SIG: 3
02-10 16:01:08.244: INFO/dalvikvm(227): threadid=7: reacting to signal 3
02-10 16:01:08.274: ERROR/dalvikvm(227): Unable to open stack trace file '/data/anr/traces.txt': Permission denied
02-10 16:01:08.754: DEBUG/dalvikvm(227): GC freed 5986 objects / 372656 bytes in 316ms
02-10 16:01:09.829: INFO/ARRAY(227): 20
02-10 16:01:09.955: INFO/Process(227): Sending signal. PID: 227 SIG: 9
02-10 16:01:09.974: INFO/ActivityManager(63): Process com.onesmartpuppy.puppytweet (pid 227) has died.
02-10 16:01:10.014: INFO/WindowManager(63): WIN DEATH: Window{43b653e0 com.onesmartpuppy.puppytweet/com.onesmartpuppy.puppytweet.PuppyTweet paused=false}
02-10 16:01:10.014: INFO/WindowManager(63): WIN DEATH: Window{43c32b48 Please wait... paused=false}
02-10 16:01:10.164: WARN/UsageStats(63): Unexpected resume of com.android.launcher while already resumed in com.onesmartpuppy.puppytweet
02-10 16:01:10.314: WARN/InputManagerService(63): Got RemoteException sending setActive(false) notification to pid 227 uid 10023
Utiliser le LogCat fonctionnalités d'Android, laisser des niveaux de débogage avec le Log de classe à l'intérieur de votre code et ouvrir le LogCat point de vue de la fenêtre sur Android et après la trace de la pile. Il apparaîtra sur la ligne de la fenêtre de fuite s'est produite et peut-être une façon pour le résoudre.
Avez-vous de la stacktrace?
la manipulation de la onDestroy et onPause événements pour tuer le thread peut être mériteraient. probablement pas le problème.
J'ai ajouté ce que j'ai obtenu à partir de la logcat

OriginalL'auteur Kelend | 2010-02-10