public void WriteSettings(Context context, ArrayList<trajet> data){ 
    	
        FileOutputStream fOut = null; 
        ObjectOutputStream osw = null; 
 
        try{ 
           fOut = context.openFileOutput("settings.dat",MODE_APPEND);       
            osw = new ObjectOutputStream(fOut); 
            osw.writeObject(data); 
            osw.flush(); 
          
            Toast.makeText(context, "Sauvegarde ok",Toast.LENGTH_SHORT).show(); 
            } 
            catch (Exception e) {       
                    Toast.makeText(context, "Sauvegarde fail",Toast.LENGTH_SHORT).show(); 
            } 
            finally { 
               try { 
                      osw.close(); 
                      fOut.close(); 
                      } catch (IOException e) { 
                               Toast.makeText(context, "Sauvegarde fail",Toast.LENGTH_SHORT).show(); 
                      } 
            } 
       }
    

public Object ReadSettings(Context context){ 

        FileInputStream fIn = null; 
        ObjectInputStream isr = null; 

        Object data = null; 
 
        try{ 
            fIn = context.openFileInput("settings.dat");       
            isr = new ObjectInputStream(fIn); 
            data = isr.readObject(); 
           
            Toast.makeText(context,"Chargement ok",Toast.LENGTH_SHORT).show(); 
            } 
            catch (Exception e) {       
                      Toast.makeText(context, "Chargement fail",Toast.LENGTH_SHORT).show(); 
            } 
            
            return data; 
       }