How to easily iterate over all strings within the "strings.xml" resource file?

Question

I created an application that uses the TTS engine to send feedback to the user. With the aim to improve the performance, I used the synthesizeToFile and addSpeech methods, but strings of text to be synthesized are inside the strings.xml file, so I have to invoke these methods for each string that is spoken by the TTS engine.

Since the TTS engine uses only strings whose name begins with tts_, is it possible to easily iterate over all strings that begin with tts_ within the strings.xml file?

Answer 1

You can get all the strings in strings.xml via reflection, and filter out only the ones you need, like so:

for (Field field : R.string.class.getDeclaredFields())
{
  if (Modifier.isStatic(field.getModifiers()) && !Modifier.isPrivate(field.getModifiers()) && field.getType().equals(int.class))
  {
    try
    {
      if (field.getName().startsWith("tts_"))
      {
        int id = field.getInt(null);
        // do something here...
      }
    } catch (IllegalArgumentException e)
    {
      // ignore
    } catch (IllegalAccessException e)
    {
      // ignore
    }
  }
}