DialogがNullと等しくないかどうかをチェックしてもダイアログDISMISSにエラーが発生する

Question

if（dialog！= nullおよびdialog.isShowing（））をチェックしてもこのエラーが発生します。誰もがそれが起こっている理由が何であるか考えていますか？

以下は私のスタックトレースとクラスコードです。事前のおかげで

STACK_TRACE=java.lang.IllegalArgumentException: View=com.android.internal.policy.impl.PhoneWindow$DecorView{2c7550a8 V.E..... R.....ID 0,0-326,175} not attached to window manager 
    at android.view.WindowManagerGlobal.findViewLocked(WindowManagerGlobal.java:396) 
    at android.view.WindowManagerGlobal.removeView(WindowManagerGlobal.java:322) 
    at android.view.WindowManagerImpl.removeViewImmediate(WindowManagerImpl.java:116) 
    at android.app.Dialog.dismissDialog(Dialog.java:341) 
    at android.app.Dialog.dismiss(Dialog.java:324) 
    at com.abcd.org.Eula$9.onPageFinished(Eula.java:332) 
    at com.android.webview.chromium.WebViewContentsClientAdapter.onPageFinished(WebViewContentsClientAdapter.java:513) 
    at org.chromium.android_webview.AwContentsClientCallbackHelper$MyHandler.handleMessage(AwContentsClientCallbackHelper.java:188) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:135) 
    at android.app.ActivityThread.main(ActivityThread.java:5343) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:372) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700) 

これはクラスです：

public class Eula { 


    private static Boolean dialog_show ; 

    static interface OnEulaAgreedTo { 
     void onEulaAgreedTo(); 
    } 

    public static boolean show(final Activity activity,final Context context,final Boolean flag) { 
     final SharedPreferences preferences = activity.getSharedPreferences(PREFERENCES_EULA, Activity.MODE_PRIVATE); 
     Log.d(TAG, "insideEula"); 
     dialog_show = false; 

     final ProgressDialog progress = new ProgressDialog(activity); 
     progress.setMessage("Loading EULA......"); 
     progress.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
     progress.setIndeterminate(true); 
     progress.setCanceledOnTouchOutside(false); 
     progress.setCancelable(false); 



     if (!preferences.getBoolean(PREFERENCE_EULA_ACCEPTED, false)) { 
      final AlertDialog.Builder builder = new AlertDialog.Builder(
        activity); 
      Log.d(TAG, "insideEulaLaunch"); 
      builder.setTitle(R.string.eula_title); 
      builder.setCancelable(true); 
      builder.setPositiveButton(R.string.eula_accept, 
        new DialogInterface.OnClickListener() { 
         public void onClick(DialogInterface dialog, int which) { 
          preferences.edit().putBoolean(PREFERENCE_EULA_ACCEPTED, true).commit(); 
          if (activity instanceof OnEulaAgreedTo) { 
           ((OnEulaAgreedTo) activity).onEulaAgreedTo(); 

          } 

         } 
        }); 
      builder.setNegativeButton(R.string.eula_refuse, 
        new DialogInterface.OnClickListener() { 
         public void onClick(DialogInterface dialog, int which) { 
          refuse(activity); 

         } 
        }); 
      builder.setOnCancelListener(new DialogInterface.OnCancelListener() { 
       public void onCancel(DialogInterface dialog) { 
        refuse(activity); 
       } 
      }); 
      WebView wv = new WebView(activity); 
       wv.getSettings().setJavaScriptEnabled(true); 

       wv.getSettings().setBuiltInZoomControls(true); 

       wv.getSettings().setSupportZoom(true); 

       wv.getSettings().setUseWideViewPort(true); 


      /*  wv.getSettings().getAllowContentAccess(); 

       wv.getSettings().setJavaScriptEnabled(true); 

       wv.getSettings().supportMultipleWindows(); 

       wv.getSettings().setAllowContentAccess(true); 

       wv.getSettings().setAllowFileAccess(true); 

       wv.getSettings().setAllowFileAccessFromFileURLs(true); 

       wv.getSettings().setAllowUniversalAccessFromFileURLs(true);*/ 

       wv.setClickable(true); 

       wv.setInitialScale(1); 

      try{ 
       wv.loadUrl(context.getString(R.string.eula_url)); 
      }catch(Exception e){ 
       Log.d(TAG, "eula fil" + e.getMessage().toString());    
      }  


      wv.setOnKeyListener(new OnKeyListener() 
      { 
       @Override 
       public boolean onKey(View v, int keyCode, KeyEvent event) 
       { 
        if(event.getAction() == KeyEvent.ACTION_DOWN) 
        { 
         WebView webView = (WebView) v; 

         switch(keyCode) 
         { 
          case KeyEvent.KEYCODE_BACK: 
           if(webView.canGoBack()) 
           { 
            webView.goBack(); 
            return true; 
           } 
           break; 
         } 
        } 

        return false; 
       } 
      }); 
      wv.requestFocus(View.FOCUS_DOWN); 
      wv.setOnTouchListener(new View.OnTouchListener() 
      { 

       @Override 
       public boolean onTouch(View v, MotionEvent event) { 
        // TODO Auto-generated method stub 
        switch (event.getAction()) 
        { 
         case MotionEvent.ACTION_DOWN: 
         case MotionEvent.ACTION_UP: 
          if (!v.hasFocus()) 
          { 
           v.requestFocus(); 
          } 
          break; 
        } 
        return false; 
       } 
      }); 
      wv.setWebViewClient(new WebViewClient() { 


       @Override 
       public boolean shouldOverrideUrlLoading(WebView view, String url) { 
        // view.loadUrl(url); 
        // return true; 
        Log.d(TAG, "shouldOverrideUrlLoading" + url); 

        Pattern pattern = Pattern.compile("[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"); 


        String cleanUrl = url; 
        if (url.contains("?")) { 
         // remove the query string 
         cleanUrl = url.substring(0, url.indexOf("?")); 
        } 

        Matcher mat = pattern.matcher(url); 

        Log.d(TAG, "url == " + url); 

        if (cleanUrl.endsWith("pdf")) { 
         Log.d(TAG, "pdf"); 
         Intent intent = new Intent(Intent.ACTION_VIEW); 
         intent.setDataAndType(Uri.parse(url), "application/pdf"); 
         try { 
          Uri uriUrl = Uri.parse(cleanUrl); 
          Intent intentUrl = new Intent(Intent.ACTION_VIEW, 
            uriUrl); 
          view.getContext().startActivity(intentUrl); 
          return true; 

         } catch (Exception e) { 
          Toast.makeText(context, "No PDF Viewer Installed", 
            Toast.LENGTH_LONG).show(); 
         } 
        } else if(url.contains("mailto:")){ 
         Log.d(TAG, "mailto"); 
         Uri uriUrl = Uri.parse(cleanUrl); 
         Intent intentUrl = new Intent(Intent.ACTION_VIEW, 
           uriUrl); 
         view.getContext().startActivity(intentUrl); 
         return true; 
        } else if(url.contains("tel:")){ 
         Log.d(TAG, "tel"); 
         String telUrl = url;       
         Intent intent = new Intent(Intent.ACTION_DIAL); 
         intent.setData(Uri.parse(telUrl)); 
         view.getContext().startActivity(intent); 
        } 
        else { 
         Log.d(TAG, "default"); 
//      view.loadUrl(url); 
         Uri uriUrl = Uri.parse(cleanUrl); 
         Intent intentUrl = new Intent(Intent.ACTION_VIEW, 
           uriUrl); 
         view.getContext().startActivity(intentUrl); 
        } 
        return true; 
       } 

       @Override 
       public void onPageFinished(WebView view, String url) { 
        // TODO Auto-generated method stub 
        Log.d(TAG, "onPageFinished"); 
        if (progress != null && progress.isShowing()) { 
         progress.dismiss(); 
         if(DataTransLayer.canTransferData(context)){ 
          builder.show(); 
         }else{       
//       builder.show().getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);        
          activity.finish(); 
         } 
        } 

       } 

       @Override 
       public void onPageStarted(WebView view, String url, 
         Bitmap favicon) { 
        // TODO Auto-generated method stub 
        Log.d(TAG, "onPageStarted"); 
        if(!dialog_show){ 
         progress.show(); 
         dialog_show = true; 
        }     

       }   

      }); 

      builder.setView(wv);    

      return false; 
     } 
     return true; 
    } 



    private static void refuse(Activity activity) { 
     activity.finish(); 
    } 

    private static CharSequence readEula(Activity activity) { 
     BufferedReader in = null; 
     try { 
      in = new BufferedReader(new InputStreamReader(activity.getAssets() 
        .open(ASSET_EULA))); 
      String line; 
      StringBuilder buffer = new StringBuilder(); 
      while ((line = in.readLine()) != null) 
       buffer.append(line).append('\n'); 

      byte[] latin1 = buffer.toString().getBytes("ISO-8859-1"); 
      return new String(latin1); 

      //return buffer; 
     } catch (IOException e) { 
      return ""; 
     } finally { 
      closeStream(in); 
     } 
    } 

    private static void closeStream(Closeable stream) { 
     if (stream != null) { 
      try { 
       stream.close(); 
      } catch (IOException e) { 
       // Ignore 
      } 
     } 
    } 

} 

Answer 1

@Pankajが正しいと言いました。別のアクティビティに進む前に、進行状況ダイアログを閉じる必要があります。