通过HCE付款

Question

我一直在开发需要实现tap&支付我能够将HCE服务与NFC终端连接起来。

现在我的问题是，用它进行实际付款的下一步是什么？

我到处找了，但找不到合适的文件。请帮帮我。

以下是我编写的将HCE服务连接到NFC终端的代码。

Android清单

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.nfcemulator">
<uses-permission android:name="android.permission.NFC" />
<uses-feature android:name="android.hardware.nfc.hce"
android:required="true" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.NFCEmulator">
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".service.HCEService"
android:exported="true"
android:permission="android.permission.BIND_NFC_SERVICE">
<intent-filter>
<action android:name="android.nfc.cardemulation.action.HOST_APDU_SERVICE" />
</intent-filter>
<meta-data
android:name="android.nfc.cardemulation.host_apdu_service"
android:resource="@xml/apduservice" />
</service>
</application>
</manifest>

HCE服务

class HCEService: HostApduService() {
companion object {
val TAG = "Host Card Emulator"
val STATUS_SUCCESS = "9000"
val STATUS_FAILED = "6F00"
val CLA_NOT_SUPPORTED = "6E00"
val INS_NOT_SUPPORTED = "6D00"
val AID = "A0000002471001"
val SELECT_INS = "A4"
val DEFAULT_CLA = "00"
val MIN_APDU_LENGTH = 12
}
override fun onDeactivated(reason: Int) {
Log.d(TAG, "Deactivated: " + reason)
}
override fun processCommandApdu(commandApdu: ByteArray?, extras: Bundle?): ByteArray {
if (commandApdu == null) {
return Utils.hexStringToByteArray(STATUS_FAILED)
}
val hexCommandApdu = Utils.toHex(commandApdu)
if (hexCommandApdu.length < MIN_APDU_LENGTH) {
return Utils.hexStringToByteArray(STATUS_FAILED)
}
if (hexCommandApdu.substring(0, 2) != DEFAULT_CLA) {
return Utils.hexStringToByteArray(CLA_NOT_SUPPORTED)
}
if (hexCommandApdu.substring(2, 4) != SELECT_INS) {
return Utils.hexStringToByteArray(INS_NOT_SUPPORTED)
}
if (hexCommandApdu.substring(10, 24) == AID)  {
return Utils.hexStringToByteArray(STATUS_SUCCESS)
} else {
return Utils.hexStringToByteArray(STATUS_FAILED)
}
}
}

apduservices.xml

<?xml version="1.0" encoding="utf-8"?>
<host-apdu-service xmlns:android="http://schemas.android.com/apk/res/android"
android:description="@string/hce_service"
android:requireDeviceUnlock="false">
<aid-group android:description="@string/aid_groups"
android:category="other">
<aid-filter android:name="325041592E5359532E4444463031"/>
</aid-group>
</host-apdu-service>

Answer 1

我认为您已经在较低级别上使用了此功能，这是不必要的，因为在使用Google Pay时提供了此功能(它支持NFC支付和在线购买(。

如果你是的开发者，你需要知道的关于谷歌支付的所有信息

Flutter支付插件是为您的Android应用程序添加支付功能的最快方法。

Google Pay推出Flutter插件用于支付

支付插件1.0.6