初始化

2022-08-24 09:32:54 +08:00
parent 0d349c559c
commit 8e4d517c40
800 changed files with 74927 additions and 20 deletions
@@ -0,0 +1,145 @@
+package com.arpa.hndahesudintocctmsdriver.util;
+
+import android.app.Activity;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.nfc.FormatException;
+import android.nfc.NdefMessage;
+import android.nfc.NdefRecord;
+import android.nfc.NfcAdapter;
+import android.nfc.NfcManager;
+import android.nfc.Tag;
+import android.nfc.tech.Ndef;
+import android.os.Parcelable;
+import android.provider.Settings;
+
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+
+/**
+ * @author hlh
+ * @version 1.0.0
+ * @date 2022/2/15 17:04
+ * @description:
+ */
+public class NfcUtils {
+
+    //nfc
+    public static NfcAdapter mNfcAdapter;
+    public static IntentFilter[] mIntentFilter = null;
+    public static PendingIntent mPendingIntent = null;
+    public static String[][] mTechList = null;
+
+    /**
+     * 构造函数，用于初始化nfc
+     */
+    public NfcUtils(Activity activity) {
+        mNfcAdapter = NfcCheck(activity);
+        NfcInit(activity);
+    }
+
+    /**
+     * 检查NFC是否打开
+     */
+    public static NfcAdapter NfcCheck(Activity activity) {
+        NfcAdapter mNfcAdapter = NfcAdapter.getDefaultAdapter(activity);
+        if (mNfcAdapter == null) {
+            return null;
+        } else {
+            if (!mNfcAdapter.isEnabled()) {
+                Intent setNfc = new Intent(Settings.ACTION_NFC_SETTINGS);
+                activity.startActivity(setNfc);
+            }
+        }
+        return mNfcAdapter;
+    }
+
+    /**
+     * 初始化nfc设置
+     */
+    public static void NfcInit(Activity activity) {
+        mPendingIntent = PendingIntent.getActivity(activity, 0, new Intent(activity, activity.getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
+        IntentFilter filter = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
+        IntentFilter filter2 = new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED);
+        try {
+            filter.addDataType("*/*");
+        } catch (IntentFilter.MalformedMimeTypeException e) {
+            e.printStackTrace();
+        }
+        mIntentFilter = new IntentFilter[]{filter, filter2};
+        mTechList = null;
+    }
+
+    /**
+     * 读取NFC的数据
+     */
+    public static String readNFCFromTag(Intent intent) throws UnsupportedEncodingException {
+        Parcelable[] rawArray = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
+        if (rawArray != null) {
+            NdefMessage mNdefMsg = (NdefMessage) rawArray[0];
+            NdefRecord mNdefRecord = mNdefMsg.getRecords()[0];
+            if (mNdefRecord != null) {
+                String readResult = new String(mNdefRecord.getPayload(), "UTF-8");
+                return readResult;
+            }
+        }
+        return "";
+    }
+
+
+    /**
+     * 往nfc写入数据
+     */
+    public static void writeNFCToTag(String data, Intent intent) throws IOException, FormatException {
+        Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
+        Ndef ndef = Ndef.get(tag);
+        ndef.connect();
+        NdefRecord ndefRecord = NdefRecord.createTextRecord(null, data);
+        NdefRecord[] records = {ndefRecord};
+        NdefMessage ndefMessage = new NdefMessage(records);
+        ndef.writeNdefMessage(ndefMessage);
+    }
+
+    /**
+     * 读取nfcID
+     */
+    public static String readNFCId(Intent intent) throws UnsupportedEncodingException {
+        Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
+        String id = ByteArrayToHexString(tag.getId());
+        return id;
+    }
+
+    /**
+     * 将字节数组转换为字符串
+     */
+    private static String ByteArrayToHexString(byte[] inarray) {
+        int i, j, in;
+        String[] hex = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"};
+        String out = "";
+
+        for (j = 0; j < inarray.length; ++j) {
+            in = (int) inarray[j] & 0xff;
+            i = (in >> 4) & 0x0f;
+            out += hex[i];
+            i = in & 0x0f;
+            out += hex[i];
+        }
+        return out;
+    }
+
+    public static boolean hasNfc(Context context){
+        boolean bRet=false;
+        if(context==null)
+            return bRet;
+        NfcManager manager = (NfcManager) context.getSystemService(Context.NFC_SERVICE);
+        NfcAdapter adapter = manager.getDefaultAdapter();
+        if (adapter != null && adapter.isEnabled()) {
+            // adapter存在，能启用
+            bRet=true;
+        }
+        return bRet;
+    }
+
+}