From 548dce0bcff06ee7a1795defe8e7789b9d7aad94 Mon Sep 17 00:00:00 2001
From: zuoxiao <470321431@qq.com>
Date: 星期五, 25 四月 2025 16:52:50 +0800
Subject: [PATCH] refactor(nfc): 重构 NFC 读写助手类并优化相关功能
---
baselibrary/src/main/java/com/dayu/baselibrary/tools/HexUtil.java | 153 +++++++++++++++++++++++++++++----------------------
1 files changed, 87 insertions(+), 66 deletions(-)
diff --git a/baselibrary/src/main/java/com/dayu/baselibrary/tools/HexUtil.java b/baselibrary/src/main/java/com/dayu/baselibrary/tools/HexUtil.java
index fc5f44b..0cde97f 100644
--- a/baselibrary/src/main/java/com/dayu/baselibrary/tools/HexUtil.java
+++ b/baselibrary/src/main/java/com/dayu/baselibrary/tools/HexUtil.java
@@ -3,6 +3,7 @@
import java.math.BigInteger;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
+import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
@@ -29,8 +30,56 @@
hexString = HighLowHex(hexString);
return hexString;
}
+
+
+ /**
+ * 16杩涘埗杞�10杩涘埗骞朵笖浣庝綅鍦ㄥ墠楂樹綅鍦ㄥ悗
+ *
+ * @param data
+ * @return
+ */
+ public static int get16To10LowHightByBytes(byte[] data) {
+ List<Byte> byteList = new ArrayList<>();
+ for (byte b : data) {
+ byteList.add(b);
+ }
+ Collections.reverse(byteList);
+ byte[] byteArray = new byte[byteList.size()];
+ for (int i = 0; i < byteList.size(); i++) {
+ byteArray[i] = byteList.get(i);
+ }
+ String hex = bytesToHex(byteArray);
+ return Integer.parseInt(hex, 16);
+ }
+
+
+
public static int getBcdToInt(byte data) {
return ((data & 0xF0) >> 4) * 10 + ((data & 0x0F));
+ }
+
+
+ public static byte[] getIntToBCD(int number) {
+ // 鑾峰彇鏁存暟鐨勫瓧绗︿覆琛ㄧず褰㈠紡
+ String numberStr = Integer.toString(number);
+
+ // 鍒涘缓涓�涓瓧鑺傛暟缁勪互瀛樺偍BCD琛ㄧず
+ int len = numberStr.length();
+ byte[] bcd = new byte[(len + 1) / 2];
+
+ int j = 0;
+ // 濡傛灉鏁板瓧鐨勯暱搴︽槸濂囨暟锛岄渶瑕佸湪鍓嶉潰娣诲姞涓�涓�0
+ if (len % 2 != 0) {
+ numberStr = "0" + numberStr; // 鍏堟坊鍔犲墠瀵奸浂
+ len++;
+ }
+
+ // 灏嗘瘡涓�瀵规暟瀛楄浆鎹负涓�涓瓧鑺�
+ for (int i = 0; i < len; i += 2) {
+ bcd[j++] = (byte) (((numberStr.charAt(i) - '0') << 4) | (numberStr.charAt(i + 1) - '0'));
+ }
+
+ return bcd;
}
/**
* short10杩涘埗杞�16杩涘埗 浣庝綅鍦ㄥ墠楂樹綅鍦ㄥ悗
@@ -47,7 +96,6 @@
while (hexString.length() < 4) {
hexString = "0" + hexString;
}
-
hexString = spaceHex(hexString);
hexString = HighLowHex(hexString);
return hexString;
@@ -55,7 +103,7 @@
/**
* 灏哹yte鏁扮粍杞崲涓哄甫绗﹀彿鐨�32浣嶆诞鐐规暟
- *
+ * <p>
* 浣庝綅鍦ㄥ墠楂樹綅鍦ㄥ悗
*
* @param value
@@ -65,23 +113,9 @@
ByteBuffer bufferLittleEndian = ByteBuffer.wrap(value);
bufferLittleEndian.order(ByteOrder.LITTLE_ENDIAN);
return bufferLittleEndian.getFloat();
-
}
- /**
- * 灏嗗甫绗﹀彿鐨�32浣嶆诞鐐规暟瑁呮崲byte鏁扮粍
- * 浣庝綅鍦ㄥ墠楂樹綅鍦ㄥ悗
- *
- * @param value
- * @return
- */
- public static byte[] folatToByte(Float value) {
- ByteBuffer buffer = ByteBuffer.allocate(4); // 4涓瓧鑺�
- buffer.order(ByteOrder.LITTLE_ENDIAN);
- buffer.putFloat(value);
- byte[] byteArray = buffer.array();
- return byteArray;
- }
+
/**
* hex瀛楃涓茶浆byte鏁扮粍
*
@@ -152,37 +186,6 @@
return sb.toString();
}
- public static String byteArrayToHexString(byte[] byteArray) {
- StringBuilder hexString = new StringBuilder();
- for (byte b : byteArray) {
- // 灏嗗瓧鑺傝浆鎹负鏃犵鍙锋暣鏁�
- int unsignedInt = b & 0xff;
- // 灏嗘棤绗﹀彿鏁存暟杞崲涓�16杩涘埗瀛楃涓�
- String hex = Integer.toHexString(unsignedInt);
- // 濡傛灉瀛楃涓查暱搴﹀皬浜�2锛屽湪鍓嶉潰琛�0
- if (hex.length() < 2) {
- hex = "0" + hex;
- }
- hexString.append(hex);
- }
- return hexString.toString();
- }
-
- /**
- * 瀛楄妭鏁扮粍杞�16杩涘埗 涓嶅湪鏈熬娣诲姞0
- *
- * @param bytes 闇�瑕佽浆鎹㈢殑byte鏁扮粍
- * @return 杞崲鍚庣殑Hex瀛楃涓�
- */
- public static String bytesToHexNoAddZero(byte[] bytes) {
- StringBuffer sb = new StringBuffer();
- for (int i = 0; i < bytes.length; i++) {
- String hex = Integer.toHexString(bytes[i] & 0xFF);
- sb.append(hex);
- }
- return sb.toString();
- }
-
/**
* 灏� 4瀛楄妭鐨�16杩涘埗瀛楃涓诧紝杞崲涓�32浣嶅甫绗﹀彿鐨勫崄杩涘埗娴偣鍨�
@@ -202,6 +205,37 @@
*/
public static String folatToHexString(Float value) {
return Integer.toHexString(Float.floatToIntBits(value));
+ }
+
+
+ /**
+ * float杞琀ex浣庝綅鍦ㄥ墠楂樹綅鍦ㄥ悗
+ *
+ * @param value
+ * @return
+ */
+ public static String floatToHexLowHigh(Float value) {
+ String hexString = Integer.toHexString(Float.floatToIntBits(value));
+ hexString = spaceHex(hexString);
+ hexString = HighLowHex(hexString);
+ return hexString;
+ }
+
+
+ public static float hexToFloatLowHigh(byte[] data) {
+ List<Byte> byteList = new ArrayList<>();
+ for (byte b : data) {
+ byteList.add(b);
+ }
+ Collections.reverse(byteList);
+ byte[] byteArray = new byte[byteList.size()];
+ for (int i = 0; i < byteList.size(); i++) {
+ byteArray[i] = byteList.get(i);
+ }
+ String hex = bytesToHex(byteArray);
+ int intValue = Integer.parseInt(hex, 16); // 灏嗗崄鍏繘鍒跺瓧绗︿覆杞崲涓烘暣鏁拌〃绀�
+ float floatValue = Float.intBitsToFloat(intValue); // 灏嗘暣鏁拌〃绀鸿浆鎹负娴偣鏁�
+ return floatValue;
}
/**
@@ -250,23 +284,6 @@
return str;
}
- /**
- * 16杩涘埗杞�10杩涘埗楂樹綆浣嶈浆鎹�
- * @param hex
- * @return
- */
- public static int get16to10LowHigh(String hex) {
- try {
- String str = "";
- str = spaceHex(hex);
- str = HighLowHex(str);
- return Integer.parseInt(str, 16);
- } catch (NumberFormatException e) {
- e.printStackTrace();
- }
- return 0;
- }
-
/**
* 杩斿洖鐗瑰畾闀垮害鐨�16杩涘埗瀛楃涓�
@@ -290,6 +307,10 @@
* @return
*/
public static String spaceHex(String str) {
+ if (str.length() % 2 != 0) {
+ //濂囨暟鏃跺墠闈㈠姞0琛ラ綈绉颁负鍋舵暟
+ str = "0" + str;
+ }
char[] array = str.toCharArray();
if (str.length() <= 2) return str;
StringBuffer bufferHex = new StringBuffer();
@@ -310,7 +331,7 @@
* @param str
* @return
*/
- private static String HighLowHex(String str) {
+ public static String HighLowHex(String str) {
if (str.trim().length() <= 2) return str;
List<String> list = Arrays.asList(str.split(" "));
Collections.reverse(list);
--
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