Button显示不同字体

Button tx = (Button)findViewById(R.id.content);
  String w =getResources().getString(R.string.hello);
  Spannable wordtoSpan = newSpannableString(w);
  wordtoSpan.setSpan(newAbsoluteSizeSpan(50), 0, 4,
    Spannable.SPAN_INCLUSIVE_INCLUSIVE);
  wordtoSpan.setSpan(newAbsoluteSizeSpan(50), 4, 14,
    Spannable.SPAN_INCLUSIVE_INCLUSIVE);
  wordtoSpan.setSpan(newStyleSpan(Typeface.BOLD), 0, 4,
    Spannable.SPAN_INCLUSIVE_INCLUSIVE);
  wordtoSpan.setSpan(newForegroundColorSpan(Color.RED), 0, 4,
    Spannable.SPAN_INCLUSIVE_INCLUSIVE);
  tx.setText(wordtoSpan);

 

string.xml

 数据同步 \n与服务器同步数据