# Ndef

> 基础库 2.11.2 开始支持，低版本需做[兼容处理](1003706)。

> 相关文档: [近场通信 (NFC)](/miniprogram/dev/framework/device/nfc.md)

Ndef 标签

## 方法

### [Ndef.connect()](/miniprogram/dev/api/device/nfc/Ndef.connect)

连接 NFC 标签

### [Ndef.close()](/miniprogram/dev/api/device/nfc/Ndef.close)

断开连接

### [Ndef.setTimeout(Object object)](/miniprogram/dev/api/device/nfc/Ndef.setTimeout)

设置超时时间

### [Ndef.isConnected()](/miniprogram/dev/api/device/nfc/Ndef.isConnected)

检查是否已连接

### [Ndef.onNdefMessage(function callback)](/miniprogram/dev/api/device/nfc/Ndef.onNdefMessage)

监听 Ndef 消息

### [Ndef.offNdefMessage(function callback)](/miniprogram/dev/api/device/nfc/Ndef.offNdefMessage)

取消监听 Ndef 消息

### [Ndef.writeNdefMessage(Object object)](/miniprogram/dev/api/device/nfc/Ndef.writeNdefMessage)

重写 Ndef 标签内容