クリック時にAsyncTaskとHttpUrlConnectionがクラッシュする

Question

次のコードがあります。私がSongSearch.execute（ "searchterm"）を呼び出そうとしているとき。 アプリがクラッシュします。そのクラスをonClick void内で呼び出します。私もSongSearch.execute（ "searchterm"）を削除しました。 onClick voidの内側からアプリがクラッシュしませんでした。問題は、SongSearchクラスでの問題です。ここに私のコードです。事前

class SongSearch extends AsyncTask<String, String, String> { 


@Override 
protected void onPreExecute() { 
    super.onPreExecute(); 
    dismissDialog(DIALOG_DOWNLOAD_PROGRESS); 
    showDialog(DIALOG_DOWNLOAD_PROGRESS); 



} 


protected String doInBackground(String aurl) { 
    int count; 

    ///////////////////// 
    try 
     { 
      // create a url object 
      URL url = new URL("http://google.com/search?sourceid=navclient&btnI=1&q=" + URLEncoder.encode(aurl, "UTF-8")); 

      // create a urlconnection object 
      URLConnection urlConnection = url.openConnection(); 

      urlConnection.connect(); 
      // wrap the urlconnection in a bufferedreader 
      BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream())); 

      String line=bufferedReader.readLine(); 
      musicurl = urlConnection.getURL().toString(); 
      musicurlfinal = musicurl.replace(".com/", ".com/dl/"); 

      // read from the urlconnection via the bufferedreader 
      while ((line = bufferedReader.readLine()) != null) 
      { 

      } 
      bufferedReader.close(); 
     } 
     catch(Exception e) 
     { 
      e.printStackTrace(); 
     } 
     return null; 






} 
protected void onProgressUpdate(String... progress) { 
     Log.d("ANDRO_ASYNC",progress[0]); 
     mProgressDialog.setProgress(Integer.parseInt(progress[0])); 
} 

protected void onPostExecute(String unused) { 

    dismissDialog(DIALOG_DOWNLOAD_PROGRESS); 
    startDownload(); 


} 


@Override 
protected String doInBackground(String... arg0) { 
    // TODO Auto-generated method stub 
    return null; 
} 

}ここ

にありがとうは私logcatスローされます棄却する必要がダイアログなしdismissDialog(DIALOG_DOWNLOAD_PROGRESS);を呼び出す

03-07 23:43:19.124: D/dalvikvm(6752): GC freed 720 objects/57056 bytes in 74ms 
03-07 23:43:20.224: I/AirpushSDK(6752): Push Service doPush....true 
03-07 23:43:20.224: I/AirpushSDK(6752): Push Service doSearch....true 
03-07 23:43:20.404: I/User Agent(6752): User Agent : true 
03-07 23:43:20.414: D/LocationManager(6752): Constructor: service = android.location.ILocationManager$Stub$Proxy@4590f7b0 
03-07 23:43:20.514: I/AirpushSDK(6752): Initialising..... 
03-07 23:43:20.674: D/dalvikvm(6752): GC freed 1442 objects/130312 bytes in 59ms 
03-07 23:43:26.527: I/AirpushSDK(6752): SDK will restart in 13260000 ms. 
03-07 23:43:28.864: D/AndroidRuntime(6752): Shutting down VM 
03-07 23:43:28.864: W/dalvikvm(6752): threadid=3: thread exiting with uncaught exception (group=0x40026160) 
03-07 23:43:28.864: E/AndroidRuntime(6752): Uncaught handler: thread main exiting due to uncaught exception 
03-07 23:43:28.864: E/AndroidRuntime(6752): java.lang.IllegalArgumentException: no dialog with id 0 was ever shown via Activity#showDialog 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.app.Activity.missingDialog(Activity.java:2524) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.app.Activity.dismissDialog(Activity.java:2509) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at com.freemusicdownloader.androdes.MusicDownloaderActivity$SongSearch.onPreExecute(MusicDownloaderActivity.java:403) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.os.AsyncTask.execute(AsyncTask.java:391) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at com.freemusicdownloader.androdes.MusicDownloaderActivity$3.onClick(MusicDownloaderActivity.java:172) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.view.View.performClick(View.java:2418) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.view.View.onTouchEvent(View.java:4233) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.view.View.dispatchTouchEvent(View.java:3763) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:968) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:968) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:968) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:968) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.app.Activity.dispatchTouchEvent(Activity.java:2064) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1691) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.os.Handler.dispatchMessage(Handler.java:99) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.os.Looper.loop(Looper.java:123) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at android.app.ActivityThread.main(ActivityThread.java:4370) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at java.lang.reflect.Method.invokeNative(Native Method) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at java.lang.reflect.Method.invoke(Method.java:521) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
03-07 23:43:28.864: E/AndroidRuntime(6752):  at dalvik.system.NativeStart.main(Native Method) 
03-07 23:43:28.884: E/SemcCheckin(6752): Get crash dump level : java.io.FileNotFoundException: /data/semc-checkin/crashdump 
03-07 23:43:28.884: I/dalvikvm(6752): threadid=7: reacting to signal 3 
03-07 23:43:28.904: I/dalvikvm(6752): Wrote stack trace to '/data/anr/traces.txt' 

Answer 1

あるIllegalArgumentException（それもAndroidのjavadocのように、指定されています） - このダイアログを閉じる必要があるかどうかを確認できる状態を維持する必要があります。