同一String设置不同颜色

一：

TextView wifi_hint_tv = (TextView) findViewById(R.id.wifi_hint_tv);
String tipsStr = "<font color=\"#939393\">" + getString(R.string.config_wifi_hint) + "</font>" + 
"<font color=\"#2ec6f6\">" + getString(R.string.switch_wifi) + "</font>";
wifi_hint_tv.setText(Html.fromHtml(tipsStr));TextView wifi_hint_tv = (TextV