早上好，我想使用我在页面上找到的写入方法:https://developer.android.com/guide/topics/connectivity/nfc/advanced-nfc.html,写在超轻型mifare上。我还没有成功。publicvoidwriteTag(Tagtag,StringtagText){MifareUltralightultralight=MifareUltralight.get(tag);try{ultralight.connect();ultralight.writePage(4,"abcd".getBytes(Charset.forName("US