Ошибка приложения при запуске фрагмента из TabActivity [Android]

Question

Из «TabActivity» я запускаю «Фрагмент», который в свою очередь запускает «FragmentActivity». Но я столкнулся с крахом. Если l запускает Activity с простым текстом, он будет работать, но если я запустил Activity с AsyncTask, он сработает. Ниже ошибка и код, любое предложение от Error Log:

07-28 12:43:26.540: E/AndroidRuntime(32237): FATAL EXCEPTION: main 
07-28 12:43:26.540: E/AndroidRuntime(32237): 
java.lang.RuntimeException: Unable to start activity 
ComponentInfo{com.itcuties.multicategoryrssreader/com.itcuties.multicategoryrssreader.SocialFeeds}: 
java.lang.RuntimeException: Unable to start activity 
ComponentInfo{com.itcuties.multicategoryrssreader/com.itcuties.multicategoryrssreader.FacebookFeeds}: 
android.view.WindowManager$BadTokenException: Unable to add window -- 
token android.app.LocalActivityManager$LocalActivityRecord@4250eaa8 is 
not valid; is your activity running? 07-28 12:43:26.540: 
E/AndroidRuntime(32237): at 
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100) 
07-28 12:43:26.540: E/AndroidRuntime(32237): at 
android.app.ActivityThread.startActivityNow(ActivityThread.java:1941) 
07-28 12:43:26.540: E/AndroidRuntime(32237): at 
android.app.LocalActivityManager.moveToState(LocalActivityManager.java:135) 
07-28 12:43:26.540: E/AndroidRuntime(32237): at 
android.app.LocalActivityManager.startActivity(LocalActivityManager.java:347) 
07-28 12:43:26.540: E/AndroidRuntime(32237): at 
android.widget.TabHost$IntentContentStrategy.getContentView(TabHost.java:705) 
07-28 12:43:26.540: E/AndroidRuntime(32237): at 
android.widget.TabHost.setCurrentTab(TabHost.java:369) 07-28 
12:43:26.540: E/AndroidRuntime(32237):  at 
android.widget.TabHost$2.onTabSelectionChanged(TabHost.java:150) 07-28 
12:43:26.540: E/AndroidRuntime(32237):  at 
android.widget.TabWidget$TabClickListener.onClick(TabWidget.java:560) 
07-28 12:43:26.540: E/AndroidRuntime(32237): at 
android.view.View.performClick(View.java:4223) 07-28 12:43:26.540: 
E/AndroidRuntime(32237): at 
android.view.View$PerformClick.run(View.java:17275) 07-28 
12:43:26.540: E/AndroidRuntime(32237):  at 
android.os.Handler.handleCallback(Handler.java:615) 07-28 
12:43:26.540: E/AndroidRuntime(32237):  at 
android.os.Handler.dispatchMessage(Handler.java:92) 07-28 
12:43:26.540: E/AndroidRuntime(32237):  at 
android.os.Looper.loop(Looper.java:137) 07-28 12:43:26.540: 
E/AndroidRuntime(32237): at 
android.app.ActivityThread.main(ActivityThread.java:4898) 07-28 
12:43:26.540: E/AndroidRuntime(32237):  at 
java.lang.reflect.Method.invokeNative(Native Method) 07-28 
12:43:26.540: E/AndroidRuntime(32237):  at 
java.lang.reflect.Method.invoke(Method.java:511) 07-28 12:43:26.540: 
E/AndroidRuntime(32237): at 
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008) 
07-28 12:43:26.540: E/AndroidRuntime(32237): at 
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775) 07-28 
12:43:26.540: E/AndroidRuntime(32237):  at 
dalvik.system.NativeStart.main(Native Method) 07-28 12:43:26.540: 
E/AndroidRuntime(32237): Caused by: java.lang.RuntimeException: Unable 
to start activity 
> ComponentInfo{com.itcuties.multicategoryrssreader/com.itcuties.multicategoryrssreader.FacebookFeeds}: 
> android.view.WindowManager$BadTokenException: Unable to add window -- 
> token android.app.LocalActivityManager$LocalActivityRecord@4250eaa8 is 
> not valid; is your activity running? 07-28 12:43:26.540: 
> E/AndroidRuntime(32237): at 
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.app.ActivityThread.startActivityNow(ActivityThread.java:1941) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.app.LocalActivityManager.moveToState(LocalActivityManager.java:135) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.app.LocalActivityManager.startActivity(LocalActivityManager.java:347) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> com.inazaruk.example.ActivityHostFragment.onCreateView(ActivityHostFragment.java:46) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:871) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1083) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.support.v4.app.BackStackRecord.run(BackStackRecord.java:635) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1431) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:523) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1178) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.app.Activity.performStart(Activity.java:5216) 07-28 
> 12:43:26.540: E/AndroidRuntime(32237): at 
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2073) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): ... 18 more 07-28 
> 12:43:26.540: E/AndroidRuntime(32237): Caused by: 
> android.view.WindowManager$BadTokenException: Unable to add window -- 
> token android.app.LocalActivityManager$LocalActivityRecord@4250eaa8 is 
> not valid; is your activity running? 07-28 12:43:26.540: 
> E/AndroidRuntime(32237): at 
> android.view.ViewRootImpl.setView(ViewRootImpl.java:708) 07-28 
> 12:43:26.540: E/AndroidRuntime(32237): at 
> android.view.WindowManagerImpl.addView(WindowManagerImpl.java:346) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.view.WindowManagerImpl.addView(WindowManagerImpl.java:224) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.view.Window$LocalWindowManager.addView(Window.java:554) 07-28 
> 12:43:26.540: E/AndroidRuntime(32237): at 
> android.app.Dialog.show(Dialog.java:277) 07-28 12:43:26.540: 
> E/AndroidRuntime(32237): at 
> com.itcuties.multicategoryrssreader.FacebookFeeds$RssFeedTask.onPreExecute(FacebookFeeds.java:132) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at 
> android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586) 07-28 
> 12:43:26.540: E/AndroidRuntime(32237): at 
> android.os.AsyncTask.execute(AsyncTask.java:534) 07-28 12:43:26.540: 
> E/AndroidRuntime(32237): at 
> com.itcuties.multicategoryrssreader.FacebookFeeds.onCreate(FacebookFeeds.java:42) 
> 07-28 12:43:26.540: E/AndroidRuntime(32237): at android.app.Activity. 
> 

Позвольте мне знать, если вам нужно посмотреть в код:

С RSSTabsActivity.java, я запускающее FragmentActivity «SocialFeeds.java»:

public class RssTabsActivity extends TabActivity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    // First, set the content view 
    setContentView(R.layout.activity_rss_top_tabs); 

    // Then get the TabHost 
    TabHost tabHost = getTabHost(); 



    //For TabA 
    Intent artIntent = new Intent().setClass(this, TabA.class); 
    // The name of the art tab taken from the String resources 
    String artTabName = getResources().getString(R.string.tab_course); 
    TabSpec artTabSpec = tabHost.newTabSpec(artTabName).setIndicator(artTabName, getResources().getDrawable(R.drawable.rss_tab_art)).setContent(artIntent); 
    // Add art tab to the TabHost 
    tabHost.addTab(artTabSpec); 



    //For TabB 
    Intent techIntent = new Intent().setClass(this, TabB.class); 
    // Tech tab name taken from the string resources 
    String techTabName = getResources().getString(R.string.tab_tour); 
    TabSpec techTabSpec = tabHost.newTabSpec(techTabName).setIndicator(techTabName, getResources().getDrawable(R.drawable.rss_tab_tech)).setContent(techIntent); 
    tabHost.addTab(techTabSpec); 



    //For TabC 
    Intent sportsIntent = new Intent().setClass(this, TabC.class); 
    // Sports tab name - string resources 
    String sportsTabName = getResources().getString(R.string.tab_webcast); 
    TabSpec sportsTabSpec = tabHost.newTabSpec(sportsTabName).setIndicator(sportsTabName, getResources().getDrawable(R.drawable.rss_tab_sports)).setContent(sportsIntent); 
    tabHost.addTab(sportsTabSpec); 



    //For TabD 
    Intent tweetsIntent = new Intent().setClass(this, SocialFeeds.class); 
    String tweetTabName = getResources().getString(R.string.tab_tweets); 
    TabSpec tweetTabSpec = tabHost.newTabSpec(tweetTabName).setIndicator(tweetTabName, getResources().getDrawable(R.drawable.rss_tab_tweets)).setContent(tweetsIntent); 
    tabHost.addTab(tweetTabSpec); 

    // Set current tab to Technology 
    tabHost.setCurrentTab(0); 
} 

SocialFeeds.java:

public class SocialFeeds extends FragmentActivity { 

private ActionsContentView viewActionsContentView; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.fragmentactivity); 

    viewActionsContentView = (ActionsContentView) findViewById(R.id.actionsContentView); 

    final ListView viewActionsList = (ListView) findViewById(R.id.actions); 

    final String[] values = new String[] { "Twitter", "Facebook", "Youtube" }; 
    final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, 
     android.R.layout.simple_list_item_1, android.R.id.text1, values); 

    viewActionsList.setAdapter(adapter); 
    viewActionsList.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
     @Override 
     public void onItemClick(AdapterView<?> adapter, View v, int position, 
      long flags) { 
     showFragment(position); 
     } 
    }); 

    showFragment(0); 
    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.fragmentmenu_main, menu); 
    return true; 
    } 

    private void showFragment(int position) { 
    final Fragment f; 
    switch (position) { 
    case 0: 
     f = new FacebookFragment(); 
     break; 
    case 1: 
     f = new HomeFragment(); 
     break; 
    case 2: 
     f = new HomeFragment(); 
     break; 

    default: 
     return; 
    } 
    getSupportFragmentManager().beginTransaction().replace(R.id.content, f).commit(); 

    viewActionsContentView.showContent(); 
    } 

От FragmentActivity Socia lFeeds.java, я запуск ActivityHostFragment "FacebookFragment.java"

public class FacebookFragment extends ActivityHostFragment { 

@Override 

    protected Class<? extends Activity> getActivityClass() { 
    return FacebookFeeds.class; 
    } 
} 

От "FacebookFragment.java", я запуск FacebookFeeds.java который имеет методы AsyncTask

public class FacebookFeeds extends Activity { 

/** Called when the activity is first created. */ 

ListView _rssFeedListView; 
List<JSONObject> jobs; 
List<RssFeedStructure> rssStr; 
private FacebookAdapter _adapter; 


@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.listview); 
    _rssFeedListView = (ListView) findViewById(R.id.rssfeed_listview); 
    RssFeedTask rssTask = new RssFeedTask(); 
    rssTask.execute(); 

} 

private class RssFeedTask extends AsyncTask<String, Void, String> { 
    // private String Content; 
    private ProgressDialog Dialog; 
    String response = ""; 

    @Override 
    protected void onPreExecute() { 
     Dialog = new ProgressDialog(FacebookFeeds.this); 
     Dialog.setMessage("Rss Loading..."); 
     Dialog.show(); 

    } 

    @Override 
    protected String doInBackground(String... urls) { 
     try { 
      String feed = "https:someurl"; 
      XmlHandler rh = new XmlHandler(); 
      rssStr = rh.getLatestArticles(feed); 
     } catch (Exception e) { 
     } 
     return response; 

    } 

    @Override 
    protected void onPostExecute(String result) { 
     if (rssStr != null) { 
      _adapter = new FacebookAdapter(FacebookFeeds.this, rssStr); 
      _rssFeedListView.setAdapter(_adapter); 
     } 
     Dialog.dismiss(); 
    } 
} 

Это AsyncTask INTURN имеет внутренний призыв к «FacebookAdapter.java»

public class FacebookAdapter extends ArrayAdapter<RssFeedStructure> { 
List<RssFeedStructure> imageAndTexts1 = null; 

public FacebookAdapter(Activity activity, 
     List<RssFeedStructure> imageAndTexts) { 
    super(activity, 0, imageAndTexts); 
    imageAndTexts1 = imageAndTexts; 
} 

@Override 
public View getView(int position, View convertView, ViewGroup parent) { 

    Activity activity = (Activity) getContext(); 
    LayoutInflater inflater = activity.getLayoutInflater(); 

    View rowView = inflater.inflate(R.layout.facebookadapter, null); 
    TextView textView = (TextView) rowView.findViewById(R.id.feed_text); 
    TextView timeFeedText = (TextView) rowView 
      .findViewById(R.id.feed_updatetime); 
    ImageView imageView = (ImageView) rowView.findViewById(R.id.feed_image); 
    try { 

     Log.d("rssfeed", "imageAndTexts1.get(position).getImgLink() :: " 
       + imageAndTexts1.get(position).getImgLink() + " :: " 
       + imageAndTexts1.get(position).getTitle()); 
     textView.setText(imageAndTexts1.get(position).getDescription()); 
     SpannableString content = new SpannableString(imageAndTexts1.get(
       position).getPubDate()); 
     content.setSpan(new UnderlineSpan(), 0, 13, 0); 

     timeFeedText.setText(content); 
     if (imageAndTexts1.get(position).getImgLink() != null) { 

      URL feedImage = new URL(imageAndTexts1.get(position) 
        .getImgLink().toString()); 
      if (!feedImage.toString().equalsIgnoreCase("null")) { 
       HttpURLConnection conn = (HttpURLConnection) feedImage 
         .openConnection(); 
       InputStream is = conn.getInputStream(); 
       Bitmap img = BitmapFactory.decodeStream(is); 
       imageView.setImageBitmap(img); 
      } else { 
       imageView.setBackgroundResource(R.drawable.rss_tab_tweets); 
      } 
     } 

    } catch (MalformedURLException e) { 

    } catch (IOException e) { 

    } 

    return rowView; 

} 

} 

если вместо FacebookFeeds.java, если я называю простое HomeFragment.java активности с некоторой SetText в OnCreate, он будет работать.

public class HomeFragment extends Fragment { 
@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
    Bundle savedInstanceState) { 
final View v = inflater.inflate(R.layout.home, container, false); 
return v; 
} 
} 

Answer 1

Удалите «Диалог» из Activity, и он будет работать. Причиной сбоя был диалог, поскольку он показывал, когда активность отсутствовала.