在此页

• 构造函数
• 特性
• 方法
• 规范
• 浏览器兼容性
• 相关话题

草案
此页面不完整。

安全上下文
此特征只可用于 安全上下文 (HTTPS)，在某些或所有 支持浏览器 .

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

NDEFReader 接口在 Web NFC API is an abstract interface used to read data from compatible NFC devices, e.g. NFC tags supporting NDEF, when these devices are within the reader's magnetic induction field.

构造函数

NDEFReader.NDEFReader()

返回 NDEFReader with configuration specified in the parameters or default ones if no parameters are specified.

特性

In addition to the properties listed below, NDEFReader 继承来自其父级接口的特性， EventTarget .

NDEFReader.onreading

An event handler for reading event, that notifies about availability of a new reading.

NDEFReader.onerror

An event handler for error event which is called to notify that an error occured during reading.

方法

NDEFReader interface inherits the methods of EventTarget , its parent interface.

NDEFReader.scan()

Called to activate the reader (after ensuring hardware and UA compatibility and obtaining permission from the user) or get an error explaining why feature is not available.

规范

规范	状态	注释
Web NFC, NDEFReader	草案	初始定义。

浏览器兼容性

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
NDEFReader	Chrome No	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No
NDEFReader() 构造函数	Chrome No	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No
onerror	Chrome No	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No
onread	Chrome No	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No
scan	Chrome No	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No
Secure context required	Chrome No	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No

图例

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

元数据

• 最后修改： Apr 29, 2020

相关话题

1. NDEFReader