react-native-nfc-hce-reader v0.5.2

react-native-nfc-hce-reader

Inspired by android-CardReader

🌟🔥Only supported Android !🔥🌟

Requisites

• Android (API 19+)
• Android SDK 27
• Android Build Tools v27.0.2

Getting started

$ npm install react-native-nfc-hce-reader --save

Mostly automatic installation

$ react-native link react-native-nfc-hce-reader

Manual installation

Android

1. Open up android/app/src/main/java/[...]/MainActivity.java

• Add import studio.bb.rnlib.RNHceReaderPackage; to the imports at the top of the file
• Add new RNHceReaderPackage() to the list returned by the getPackages() method

2. Append the following lines to android/settings.gradle:

   include ':react-native-hce-reader'
   project(':react-native-hce-reader').projectDir = new File(rootProject.projectDir, 	'../node_modules/react-native-hce-reader/android')

3. Insert the following lines inside the dependencies block in android/app/build.gradle:

     compile project(':react-native-hce-reader')

Setup

1. Open up android/app/src/main/AndroidManifest.xml

• Add <uses-permission android:name="android.permission.NFC" />

-Add

<intent-filter>
<action android:name="android.nfc.action.TECH_DISCOVERED" />
</intent-filter>

            <meta-data
                android:name="android.nfc.action.TECH_DISCOVERED"
                android:resource="@xml/nfc_tech_filter" />

2. Create nfc_tech_filter.xml in android/app/src/main/res/xml/

• Add code in aid_list.xml

<?xml version="1.0" encoding="utf-8"?><!-- This file is used as part of the filter for incoming NFC TECH_DISCOVERED intents. -->
<resources xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- Android's host card emulation feature only supports the IsoDep protocol. -->
    <tech-list>
        <tech>android.nfc.tech.IsoDep</tech>
    </tech-list>
</resources>

The aid need to customize

• Edit AID in react-native-nfc-hce/android/src/main/java/studio/bb/rnlib/RNHceReaderModule.java

public class RNHceReaderModule extends ReactContextBaseJavaModule implements NfcAdapter.ReaderCallback, LifecycleEventListener {

    private static final String TAG = "ReaderModule";

    private static final String AID = "F201808175";

Usage

import HCEReader from "react-native-hce-reader";

componentDidMount = () => {
  let { support, enabled } = HCEReader.supportNFC();
  this.setState({ support, enabled });
  if (support) {
    this._listenNFCStatus();
    if (!enabled) return;
    this._listenDataReceived();
  } else {
    //你的裝置不支援ＮＦＣ
  }
};

_listenNFCStatus = () => {
  HCEReader.listenNFCStatus(enabled => {
    this.setState({ enabled, warnText });
  });
};

_listenDataReceived = () => {
  HCEReader.listenDataReceived(data => {
    this.setState({ receivedData: data });
  });
};

supportNFC()

Get NFC supported and enabled

listenNFCStatus(enabled:boolean)

Listen NFC enabled status

listenDataReceived(data:string)

Listen Data Received