Question

The Eula module from code.google.com works great but it doesn’t display Unicode characters (e.g. ©) for some reason.

I know that AlertDialogs are perfectly capable of displaying Unicode characters, because I do so in other dialogs in my app.

The only difference I have been able to find between Eula’s dialog and others is that the Eula.java dialog gets its string from a text file in the assets folder:

  private static CharSequence readEula(Activity activity) {
    BufferedReader in = null;
    try {
      in = new BufferedReader(new InputStreamReader(activity.getAssets().open(ASSET_EULA)));
      String line;
      StringBuilder buffer = new StringBuilder();
      while ((line = in.readLine()) != null)
        buffer.append(line).append('\n');
      return buffer;
    }
    catch (IOException e) {
      return "";
    }
    finally {
      closeStream(in);
    }
  }

That text file displays all Unicode characters in Notepad++, so I can only suspect InputStreamReader, BufferedReader or StringBuilder doing something to the string on its way from the assets file to the AlertDialog.

How can I make Eula.java display Unicode?

Answer 1

Give InputStreamReader the encoding of the source data; this class transcodes data to UTF-16 character data.