package com.dayu.recharge.tools;
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import android.app.Activity;
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import android.content.Context;
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import android.nfc.NfcAdapter;
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import android.nfc.Tag;
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import android.util.Log;
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import android.widget.Toast;
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/**
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* Created by Android Studio.
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* author: zuo
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* Date: 2023-11-30
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* Time: 10:27
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* 备注：
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*/
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public class NFCUtil {
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static String TAG = "NFCUtil";
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static NFCUtil nfcUtil;
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static NfcAdapter mNfcAdapter;
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public static int READER_FLAGS =
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NfcAdapter.FLAG_READER_NFC_A | NfcAdapter.FLAG_READER_SKIP_NDEF_CHECK;
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private static boolean isOpen = false;
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LoyaltyCardReader.AccountCallback accountCallback;
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public void setAccountCallback(LoyaltyCardReader.AccountCallback accountCallback) {
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this.accountCallback = accountCallback;
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}
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/**
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* 获取NFC的单例
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*
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* @return NfcUtils
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*/
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public static NFCUtil getInstance() {
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if (nfcUtil == null) {
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synchronized (NFCUtil.class) {
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if (nfcUtil == null) {
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nfcUtil = new NFCUtil();
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}
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}
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}
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return nfcUtil;
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}
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/**
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* 在onStart中检测是否支持nfc功能
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*
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* @param context 当前页面上下文
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*/
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public void onStartNfcAdapter(Activity context) {
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mNfcAdapter = NfcAdapter.getDefaultAdapter(context);//设备的NfcAdapter对象
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if (mNfcAdapter == null) {//判断设备是否支持NFC功能
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Toast.makeText(context, "设备不支持NFC功能!", Toast.LENGTH_SHORT).show();
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context.finish();
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return;
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}
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if (!mNfcAdapter.isEnabled()) {//判断设备NFC功能是否打开
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Toast.makeText(context, "请到系统设置中打开NFC功能!", Toast.LENGTH_SHORT).show();
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return;
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}
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Log.d(TAG, "NFC is start");
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}
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/**
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* 在onResume中开启nfc功能
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*
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* @param activity
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*/
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public void onResumeNfcAdapter(Activity activity) {
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if (mNfcAdapter != null && mNfcAdapter.isEnabled()) {
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// mNfcAdapter.enableForegroundDispatch(this,mPendingIntent,null,null);//打开前台发布系统，使页面优于其它nfc处理.当检测到一个Tag标签就会执行mPendingItent
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if (!isOpen)
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mNfcAdapter.enableReaderMode(activity, new LoyaltyCardReader(activity, accountCallback),
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READER_FLAGS,
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null);
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isOpen = true;
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Log.d(TAG, "Resume");
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}
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}
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/**
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* 在onPause中关闭nfc功能
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*
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* @param activity
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*/
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public void onPauseNfcAdapter(Activity activity) {
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if (mNfcAdapter != null && mNfcAdapter.isEnabled()) {
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if (isOpen)
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mNfcAdapter.disableReaderMode(activity);
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isOpen = false;
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}
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Log.d("myNFC", "onPause");
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}
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}
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