The xml file is preprocessed into java source R.java which is then built into your project. If you look at the source (in the gen folder) for R.java you will see that R.string.q0 is a public static final int, i.e. a named constant if you will, and that the _value_ of the ints are in ascending numerical order matching the order they are defined in the xml file, although they are listed in R.java in alphabetic order. That is, the value of R.string.q0a1 will be 1 more than R.string.q0 (going by your xml). If your xml has a defined pattern such that there is always the same number of strings between similar entries, e.g. q1 is 7 after q0 and q2 is 7 after q1, you can use this to find a random question e.g.
int randomQ = R.string.q0 + (rGenerator.nextInt(204) * 7); String Question = getString(randomQ); String Answer1 = getString(randomQ +1); etc. Regards, Chris On Mar 20, 5:36 am, Ben Orchard <[email protected]> wrote: > I have a strings.xml file that takes the following format (in general): > > <string name="q0"></string> > <string name="q0a1"></string> > <string name="q0a2"></string> > <string name="q0a3"></string> > <string name="q0a4"></string> > <string name="q0KEY">1</string> > <string name="q0ANS">ans-a01</string> > > There are 200+ questions and response sets. I am trying to select a random > one, (say q183) and then use the text in a text view like such: > > Random rGenerator = new Random(); > int randomQ = rGenerator.nextInt(204); > String Q_ID = 'q' + getString(randomQ); > List<Integer> intlist = new ArrayList<Integer>(); > intlist.add(new Integer(1)); > intlist.add(new Integer(2)); > intlist.add(new Integer(3)); > intlist.add(new Integer(4)); > Collections.shuffle(intlist); > String ANS_ID1 = "R.string."+Q_ID + "a"+getString(intlist.get(0)); > String ANS_ID2 = "R.string."+Q_ID + "a"+getString(intlist.get(1)); > String ANS_ID3 = "R.string."+Q_ID + "a"+getString(intlist.get(2)); > String ANS_ID4 = "R.string."+Q_ID + "a"+getString(intlist.get(3)); > String Question = getString(R.string.Q_ID); //this is considedered a > syntax error by java/android > TextView QuestionView = (TextView) findViewById(R.id.QuestionText); > QuestionView.setText(Question); > > No matter how I construct (at least, as I can think of it) the text of the > string to pass as a parameter to the value of Question, I end up with > problems. > > At this point I absolutely need to be able to choose an arbitrary string > from strings.xml, with the specific set of strings to follow. > > Any help would be appreciated. Yes I know a database *might* be simpler, > but I cannot figure out the proper code to make this work either. The ONE > tutorial on the subject leaves out critical information. I really need help > on this. > > Thanks > > Ben > > -- > I have no bit of wisdom to include as a signature. -- You received this message because you are subscribed to the Google Groups "Android Beginners" group. NEW! Try asking and tagging your question on Stack Overflow at http://stackoverflow.com/questions/tagged/android To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en To unsubscribe from this group, send email to android-beginners+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
