errore quando si seleziona il testo da TextView (java.lang.IndexOutOfBoundsException: setSpan (-1 ... -1) inizia prima 0)

Question

Sto cercando aggiungere funzionalità di copia incolla sul testo view.I hanno aggiunto nel codice registerForContextMenu(detailedText); e anche android:textIsSelectable="true" in xml. Quando cerco di copiarlo funziona bene, ma quando si punta sulla prima posizione della vista del testo, e di quando proviamo a selezionare il testo, genera un errore. Che ho mostrato di seguito. Come posso risolverlo ? mi aiuti per favore.

XML

<TextView 
      android:id="@+id/datailtext" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:textIsSelectable="true" 
      android:layout_below="@+id/EMPTY" 
      android:text="@string/detailed_text"  
      /> 

errore

04-02 16:54:03.367: E/AndroidRuntime(10977): FATAL EXCEPTION: main 
    04-02 16:54:03.367: E/AndroidRuntime(10977): Process: com.example.app, PID: 10977 
    04-02 16:54:03.367: E/AndroidRuntime(10977): java.lang.IndexOutOfBoundsException: setSpan (-1 ... -1) starts before 0 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.text.SpannableStringInternal.checkRange(SpannableStringInternal.java:355) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.text.SpannableStringInternal.setSpan(SpannableStringInternal.java:77) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.text.SpannableString.setSpan(SpannableString.java:46) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.text.Selection.setSelection(Selection.java:76) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.widget.Editor$SelectionEndHandleView.updateSelection(Editor.java:3479) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.widget.Editor$HandleView.positionAtCursorOffset(Editor.java:3167) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.widget.Editor$SelectionEndHandleView.updatePosition(Editor.java:3494) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.widget.Editor$HandleView.onTouchEvent(Editor.java:3260) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.View.dispatchTouchEvent(View.java:7690) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.View.dispatchPointerEvent(View.java:7870) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:3919) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3808) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3406) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3456) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3425) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3510) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3433) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3567) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3406) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3456) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3425) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3433) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3406) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5520) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5500) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5471) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5594) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:182) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:174) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:5573) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:5613) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.Choreographer.doCallbacks(Choreographer.java:562) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.Choreographer.doFrame(Choreographer.java:530) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.os.Handler.handleCallback(Handler.java:733) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.os.Handler.dispatchMessage(Handler.java:95) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.os.Looper.loop(Looper.java:137) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at android.app.ActivityThread.main(ActivityThread.java:4998) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at java.lang.reflect.Method.invokeNative(Native Method) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at java.lang.reflect.Method.invoke(Method.java:515) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593) 
    04-02 16:54:03.367: E/AndroidRuntime(10977): at dalvik.system.NativeStart.main(Native Method) 

Codice Aggiornamento

bene, voglio implementare la funzionalità di copia incolla in mostra il testo Android 2.3, l'ho fatto lontano nel codice, ho dettagliato di seguito. Any migliore su ggestion per l'implementazione in Android 2.3, per favore aiutatemi.

detailedText.setOnLongClickListener(new OnLongClickListener() { 

     @SuppressLint("NewApi") 
     @Override 
     public boolean onLongClick(View v) { 
      // TODO Auto-generated method stub 

      Log.d("LOG", "Detail text long pressed"); 

      int startIndex = detailedText.getSelectionStart(); 
      int endIndex = detailedText.getSelectionEnd(); 

      Log.d("LOG","startIndex "+ startIndex + "endIndex " + endIndex);///here get index -1 ,-1 for startIndex and endIndex in less than android 4.4 i dont know why? 


      String YouExtracted = stringYouExtracted.substring(startIndex,endIndex); 

      int sdk = android.os.Build.VERSION.SDK_INT; 
      if (sdk < android.os.Build.VERSION_CODES.HONEYCOMB) { 
       android.text.ClipboardManager clipboard = (android.text.ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE); 
       clipboard.setText(detailedText.getText().toString()); 
      } else { 
       android.content.ClipboardManager clipboard = (android.content.ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE); 
       android.content.ClipData clip = android.content.ClipData 
         .newPlainText("COPYTEXT", detailedText.getText().toString()); 
       clipboard.setPrimaryClip(clip); 
      } 
      return true; 
     } 
    }); 

    setupSocialNetworkingLinks(); 
} 

/*@Override 
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { 
    //user has long pressed your TextView 
    menu.add(0, v.getId(), 0, "COPYTEXT"); 

    //cast the received View to TextView so that you can get its text 
    TextView yourTextView = (TextView) detailedText; 

    int startIndex = detailedText.getSelectionStart(); 
    int endIndex = detailedText.getSelectionEnd(); 
    String YouExtracted = detailedText.getText().toString(); 

    //place your TextView's text in clipboard 
    if(android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.HONEYCOMB) { 
     android.text.ClipboardManager clipboard = (android.text.ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE); 
     clipboard.setText(YouExtracted); 
    } else { 
     android.content.ClipboardManager clipboard = (android.content.ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE); 
     android.content.ClipData clip = android.content.ClipData.newPlainText("COPYING", YouExtracted); 
     clipboard.setPrimaryClip(clip); 
    } 
} 
*/ 

Answer 1

È un po 'tardi, ma stai usando un LinkMovementMethod personalizzato? Ho scoperto la stessa eccezione, ma non appena commento il setCustomMovementMethod, l'eccezione scompare.

Non so perché questo accade ancora.

Answer 2

Ho avuto lo stesso problema con la selezione del testo in TextView. È eventuno, poiché TextView usa SpannableString, ma il metodo statico Selected.getSelectionStart (testo CharSequence) restituisce -1 se il testo non è l'istanza di Spanning. Risolvo (e https://code.google.com/p/android/issues/detail?id=191430 per Android 6) ovveride dispatchTouchEvent come questo:

public class HackyTextView extends TextView { 

    ... 

    @Override 
    public boolean dispatchTouchEvent(final MotionEvent event) { 
     // FIXME simple workaround to https://code.google.com/p/android/issues/detail?id=191430 
     int startSelection = getSelectionStart(); 
     int endSelection = getSelectionEnd(); 
     if (startSelection < 0 || endSelection < 0){ 
      Selection.setSelection((Spannable) getText(), getText().length()); 
     } else if (startSelection != endSelection) { 
      if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { 
       final CharSequence text = getText(); 
       setText(null); 
       setText(text); 
      } 
     } 
     return super.dispatchTouchEvent(event); 
    } 
}