TextView textView = (TextView) findViewById( R.id.tv );
String text = "<font color="#d93b3a">" + "快过年了" + "</font>" +
"<font color="#666666">" + "哈哈哈哈" + "</font>" +
"<font color="#00caca">" + "我是绿色的" + "</font>" ;
textView.setText( Html.fromHtml(text) ) ;
显示的效果