Android與單片機(jī)通信常用數(shù)據(jù)轉(zhuǎn)換方法
1. 將GB2312轉(zhuǎn)化為中文,如BAFAC2DCB2B7→胡蘿卜,兩個(gè)字節(jié)合成一個(gè)文字
public static String stringToGbk(String string) throws Exception { byte[] bytes = new byte[string.length() / 2]; for (int j = 0; j < bytes.length; j++) { byte high = Byte.parseByte(string.substring(j * 2, j * 2 + 1), 16); byte low = Byte.parseByte(string.substring(j * 2 + 1, j * 2 + 2), 16); bytes[j] = (byte) (high << 4 | low); } String result = new String(bytes, "GBK"); return result; } 2.將中文轉(zhuǎn)化為GB2312,并且結(jié)果以byte[]形式返回,如胡蘿卜→new byte[]{BA FA C2 DC B2 B7}，一個(gè)字被分為兩個(gè)字節(jié)
public static byte[] gbkToString(String str) throws Exception { return new String(str.getBytes("GBK"), "gb2312").getBytes("gb2312"); } 3.將十六進(jìn)制的byte[]原封不動(dòng)的轉(zhuǎn)化為string，如byte[]{0x7e，0x80,0x11,0x20}→7e801120,可用于log打印
public static String bytesToHexString(byte[] src) { StringBuilder stringBuilder = new StringBuilder(""); if (src == null || src.length <= 0) { return null; } for (int i = 0; i < src.length; i++) { int v = src[i] & 0xFF; String hv = Integer.toHexString(v); if (hv.length() < 2) { stringBuilder.append(0); } stringBuilder.append(hv); } return stringBuilder.toString(); } 4.將十六進(jìn)制的byte[]原封不動(dòng)的轉(zhuǎn)化為string，并且每個(gè)byte之間用空格分開(kāi)，如byte[]{0x7e，0x80,0x11,0x20}→7e 80 11 20，,可用于log打印
public static StringBuilder byte2HexStr(byte[] data) { if (data != null && data.length > 0) { StringBuilder stringBuilder = new StringBuilder(data.length); for (byte byteChar : data) { stringBuilder.append(String.format("%02X ", byteChar)); } return stringBuilder; } return null; } 5.將byte[]數(shù)組轉(zhuǎn)化為8、10、16等各種進(jìn)制，例如byte[0x11,0x20]→4384，約等于1120（16進(jìn)制）→4384，radix代表進(jìn)制
public static String bytesToAllHex(byte[] bytes, int radix) { return new BigInteger(1, bytes).toString(radix);// 這里的1代表正數(shù) } 6.將String的十六進(jìn)制原封不動(dòng)轉(zhuǎn)化為byte的十六進(jìn)制，例如7e20→new byte[]{0x7e，x20}
public static byte[] HexString2Bytes(String src) { byte[] ret = new byte[src.length() / 2]; byte[] tmp = src.getBytes(); for (int i = 0; i < tmp.length / 2; i++) { ret[i] = uniteBytes(tmp[i * 2], tmp[i * 2 + 1]); } return ret; }
public static byte uniteBytes(byte src0, byte src1) { byte _b0 = Byte.decode("0x" + new String(new byte[] { src0 })) .byteValue(); _b0 = (byte) (_b0 << 4); byte _b1 = Byte.decode("0x" + new String(new byte[] { src1 })) .byteValue(); byte ret = (byte) (_b0 ^ _b1); return ret; } 以上就是對(duì)Android 與單片機(jī)通信的資料整理，后續(xù)繼續(xù)補(bǔ)充相關(guān)資料謝謝大家對(duì)本站的支持！
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