Android 代码实现NFC读取门禁卡信息,写入SE卡中
时间: 2023-08-07 09:08:14 浏览: 190
实现NFC读取门禁卡信息,需要使用Android的NFC管理器和NFC标签技术。同时,为了将门禁卡信息写入SE卡中,还需要使用SE卡的API接口。以下是一些基本步骤:
1. 确认设备支持NFC功能,并且已经开启NFC。
2. 创建一个NFCAdapter对象,并且设置一个PendingIntent来接收NFC标签的检测事件。
```
NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
```
3. 在onNewIntent()方法中处理NFC标签检测事件,获取NFC标签信息。
```
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
byte[] id = tag.getId();
String cardId = HexUtil.encodeHexStr(id);
//处理门禁卡信息
//...
}
```
4. 使用SE卡API接口写入门禁卡信息。
```
...
//获取SE卡对象
Card card = mCardManager.connect();
//创建APDU命令
byte[] apduCommand = new byte[] {...};
//发送APDU命令并接收返回结果
byte[] apduResponse = card.transceive(apduCommand);
//处理返回结果
//...
```
需要注意的是,具体的SE卡API接口使用方法可能因为不同的SE卡而有所不同,需要参考对应的SE卡开发文档。
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