开始学习
复制一个包含安装步骤和该插件的完整 Markdown 指南的设置提示。
Set up this Capacitor plugin in the project.
Use the package manager already used by the project.
Install these package(s): `@capgo/capacitor-nfc`
Run the required Capacitor sync/update step after installation.
Read this markdown guide for the full setup steps: https://raw.githubusercontent.com/Cap-go/website/refs/heads/main/apps/docs/src/content/docs/docs/plugins/nfc/getting-started.mdx
Use that guide for platform-specific steps, native file edits, permissions, config changes, imports, and usage setup.
If that guide references other docs pages, read them too.
安装
安装You can use our AI-Assisted Setup to install the plugin. Add the Capgo skills to your AI tool using the following command:
npx skills add https://github.com/Cap-go/capgo-skills --skill capacitor-plugins然后使用以下提示:
Use the `capacitor-plugins` skill from `Cap-go/capgo-skills` to install the `@capgo/capacitor-nfc` plugin in my project.如果您更喜欢手动设置,请运行以下命令并按照以下平台特定的说明进行操作:
bun add @capgo/capacitor-nfcbunx cap syncimport { CapacitorNfc } from '@capgo/capacitor-nfc';API概述
API概述startScanning
开始扫描开始监听NFC标签。
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.startScanning();stopScanning
停止扫描停止当前的NFC扫描会话。
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.stopScanning();write
写入将提供的NDEF记录写入最后发现的标签。
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.write({} as WriteTagOptions);erase
擦除尝试通过写入一个空的NDEF消息来擦除最后发现的标签。
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.erase();makeReadOnly
标题:使只读尝试将最后发现的标签设置为只读状态。
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.makeReadOnly();share
标题:分享通过 Android-only 的对等 (peer-to-peer) 共享 NDEF 消息。
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.share({} as ShareTagOptions);unshare
标题:取消分享停止共享之前提供的 NDEF 消息 (Android-only)。
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.unshare();getStatus
标题:获取状态获取当前 NFC 适配器状态。
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.getStatus();showSettings
标题:"showSettings"打开系统设置页面,用户可以在此处启用NFC。
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.showSettings();isSupported
标题:"isSupported"检查设备是否支持NFC硬件。
返回 true 如果设备上有NFC硬件,无论NFC是否当前启用或禁用,均返回true。返回 false 如果设备上没有NFC硬件,均返回false。
使用此方法来确定是否在应用程序UI中显示NFC功能。要检查NFC是否当前启用,请使用 getStatus().
import { CapacitorNfc } from '@capgo/capacitor-nfc';
await CapacitorNfc.isSupported();类型参考
《类型参考》StartScanningOptions
《开始扫描选项》控制的行为选项。
export interface StartScanningOptions { /** * iOS-only: closes the NFC session automatically after the first successful tag read. * Defaults to `true`. */ invalidateAfterFirstRead?: boolean; /** * iOS-only: custom message displayed in the NFC system sheet while scanning. */ alertMessage?: string; /** * iOS-only: session type to use for NFC scanning. * - `'ndef'`: Uses NFCNDEFReaderSession (default). Only detects NDEF-formatted tags. * - `'tag'`: Uses NFCTagReaderSession. Detects both NDEF and non-NDEF tags (e.g., raw MIFARE tags). * Allows reading UID from unformatted tags. * **Requires** the `Near Field Communication Tag Reader Session Formats` entitlement * in your app with the `TAG` format included. Without it the session will fail to * start and the promise will reject with a `NO_NFC` error code. * Defaults to `'ndef'` for backward compatibility. */ iosSessionType?: 'ndef' | 'tag'; /** * Android-only: raw flags passed to `NfcAdapter.enableReaderMode`. * Defaults to enabling all tag types with skipping NDEF checks. */ androidReaderModeFlags?: number;}WriteTagOptions
《写标签选项》用于在当前标签上写入NDEF消息的选项。
export interface WriteTagOptions { /** * Array of records that compose the NDEF message to be written. */ records: NdefRecord[]; /** * When `true`, the plugin attempts to format NDEF-formattable tags before writing. * Defaults to `true`. */ allowFormat?: boolean;}ShareTagOptions
《分享标签选项》用于使用Android Beam / P2P模式与另一个设备共享NDEF消息的选项。
export interface ShareTagOptions { records: NdefRecord[];}NfcStatus
《NFC状态》由返回的NFC适配器状态。
export type NfcStatus = 'NFC_OK' | 'NO_NFC' | 'NFC_DISABLED' | 'NDEF_PUSH_DISABLED';NfcEvent
标题:NfcEvent插件通过此事件发送的通用NFC发现事件。
export interface NfcEvent { type: NfcEventType; tag: NfcTag;}NfcStateChangeEvent
标题:NfcStateChangeEventNFC适配器可用性发生变化时发出的事件。
export interface NfcStateChangeEvent { status: NfcStatus; enabled: boolean;}NdefRecord
标题:NdefRecord表示单个NDEF记录的JSON结构。
export interface NdefRecord { /** * Type Name Format identifier. */ tnf: number; /** * Type field expressed as an array of byte values. */ type: number[]; /** * Record identifier expressed as an array of byte values. */ id: number[]; /** * Raw payload expressed as an array of byte values. */ payload: number[];}NfcEventType
标题:NfcEventType描述发生NFC发现的类型的事件。
export type NfcEventType = 'tag' | 'ndef' | 'ndef-mime' | 'ndef-formatable';NfcTag
名为“NfcTag”的部分本地层返回的完整标签信息的表示
export interface NfcTag { /** * Raw identifier bytes for the tag. */ id?: number[]; /** * List of Android tech strings (e.g. `android.nfc.tech.Ndef`). */ techTypes?: string[]; /** * Human readable tag type when available (e.g. `NFC Forum Type 2`, `MIFARE Ultralight`). */ type?: string | null; /** * Maximum writable size in bytes for tags that expose NDEF information. */ maxSize?: number | null; /** * Indicates whether the tag can be written to. */ isWritable?: boolean | null; /** * Indicates whether the tag can be permanently locked. */ canMakeReadOnly?: boolean | null; /** * Array of NDEF records discovered on the tag. */ ndefMessage?: NdefRecord[] | null;}真实来源
名为“真实来源”的部分本插件的 src/definitions.ts当公共API在上游发生变化时,重新运行同步。
从开始就继续
名为“从开始就继续”的部分如果您正在使用 开始 为了计划仪表板和API操作,连接它与 使用@capgo/capacitor-nfc 在使用@capgo/capacitor-nfc中, API概述 在API概述中,了解实现细节 简介 在简介中了解实现细节 API密钥 在API密钥中了解实现细节, 设备 在设备中了解实现细节。