android - how to add gestures to gesture file -


i save gestures gesture file, works fine. have problem, gesture file overwritten time save new gesture.

how add gestures gesture file, without overwrite time?

static file mstorefile = new file ( environment.getexternalstoragedirectory (), "gestures" );   if(!mstorefile.exists ()){         toast.maketext ( getapplicationcontext (), "datei war nicht vorhanden", toast.length_short ).show ();         file mstorefile = new file ( environment.getexternalstoragedirectory (), "gestures" );     }      gestureoverlayview gestureview = ( gestureoverlayview ) findviewbyid ( r.id.             gesturelayout );      gestureview.addongesturelistener ( new gesturesprocessor () ); }   private class gesturesprocessor implements gestureoverlayview.ongesturelistener {      @override     public void ongesturestarted ( gestureoverlayview overlay, motionevent event ) {      }      @override     public void ongesture ( gestureoverlayview overlay, motionevent event ) {      }      @override     public void ongestureended ( gestureoverlayview overlay, motionevent event ) {          string text;         gesture = overlay.getgesture ();         if ( gesture.getlength () < length_threshold ) {              text = "geste war zu kurz";             dialog_anzeigen2 ( text );             overlay.clear ( false );          }          text = "geste übernehmen?";         dialog_anzeigen(text);      }       @override     public void ongesturecancelled ( gestureoverlayview overlay, motionevent event ) {      }

and part in gesture file saved: 

 public void confirm() {         if (gesture != null) {              log.d ( "hier", "hier " );             gesturelibrary store = gesturelibraries.fromfile ( mstorefile );              // über den namen wird festgemacht, zu welcher applikation die geste gehören soll             store.addgesture(name, gesture);             store.save();              log.d ( "hier1", "hier1 " );              set<string> entries = store.getgestureentries();              log.d ( "entries1.size ()", "entries1.size() " + entries.size () );                setresult ( result_ok );            } else {             log.d ( "hier2", "hier2 " );             setresult(result_canceled);         }     }  }

thanks lot helping.


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