package com.huaye.odyandroidstore.utils;
import android.annotation.SuppressLint;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.view.View;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
/**
* <pre>
* author: Blankj
* blog : http://blankj.com
* time : 2016/8/13
* desc : 转换相关工具类
* </pre>
*/
public class ConvertUtils {
private ConvertUtils() {
throw new UnsupportedOperationException("u can't instantiate me...");
}
private static final char hexDigits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
/**
* byteArr转hexString
* <p>例如：</p>
* bytes2HexString(new byte[] { 0, (byte) 0xa8 }) returns 00A8
*
* @param bytes 字节数组
* @return 16进制大写字符串
*/
public static String bytes2HexString(byte[] bytes) {
if (bytes == null) return null;
int len = bytes.length;
if (len <= 0) return null;
char[] ret = new char[len << 1];
for (int i = 0, j = 0; i < len; i++) {
ret[j++] = hexDigits[bytes[i] >>> 4 & 0x0f];
ret[j++] = hexDigits[bytes[i] & 0x0f];
}
return new String(ret);
}
/**
* hexString转byteArr
* <p>例如：</p>
* hexString2Bytes("00A8") returns { 0, (byte) 0xA8 }
*
* @param hexString 十六进制字符串
* @return 字节数组
*/
public static byte[] hexString2Bytes(String hexString) {
if (StringUtils.isSpace(hexString)) return null;
int len = hexString.length();
if (len % 2 != 0) {
hexString = "0" + hexString;
len = len + 1;
}
char[] hexBytes = hexString.toUpperCase().toCharArray();
byte[] ret = new byte[len >> 1];
for (int i = 0; i < len; i += 2) {
ret[i >> 1] = (byte) (hex2Dec(hexBytes[i]) << 4 | hex2Dec(hexBytes[i + 1]));
}
return ret;
}
/**
* hexChar转int
*
* @param hexChar hex单个字节
* @return 0..15
*/
private static int hex2Dec(char hexChar) {
if (hexChar >= '0' && hexChar <= '9') {
return hexChar - '0';
} else if (hexChar >= 'A' && hexChar <= 'F') {
return hexChar - 'A' + 10;
} else {
throw new IllegalArgumentException();
}
}
/**
* charArr转byteArr
*
* @param chars 字符数组
* @return 字节数组
*/
public static byte[] chars2Bytes(char[] chars) {
if (chars == null || chars.length <= 0) return null;
int len = chars.length;
byte[] bytes = new byte[len];
for (int i = 0; i < len; i++) {
bytes[i] = (byte) (chars[i]);
}
return bytes;
}
/**
* byteArr转charArr
*
* @param bytes 字节数组
* @return 字符数组
*/
public static char[] bytes2Chars(byte[] bytes) {
if (bytes == null) return null;
int len = bytes.length;
if (len <= 0) return null;
char[] chars = new char[len];
for (int i = 0; i < len; i++) {
chars[i] = (char) (bytes[i] & 0xff);
}
return chars;
}
/**
* 以unit为单位的内存大小转字节数
*
* @param memorySize 大小
* @param unit 单位类型
* <ul>
* <li>{@link ConstUtils.MemoryUnit#BYTE}: 字节</li>
* <li>{@link ConstUtils.MemoryUnit#KB} : 千字节</li>
* <li>{@link ConstUtils.MemoryUnit#MB} : 兆</li>
* <li>{@link ConstUtils.MemoryUnit#GB} : GB</li>
* </ul>
* @return 字节数
*/
public static long memorySize2Byte(long memorySize, ConstUtils.MemoryUnit unit) {
if (memorySize < 0) return -1;
switch (unit) {
default:
case BYTE:
return memorySize;
case KB:
return memorySize * ConstUtils.KB;
case MB:
return memorySize * ConstUtils.MB;
case GB:
return memorySize * ConstUtils.GB;
}
}
/**
* 字节数转以unit为单位的内存大小
*
* @param byteNum 字节数
* @param unit 单位类型
* <ul>
* <li>{@link ConstUtils.MemoryUnit#BYTE}: 字节</li>
* <li>{@link ConstUtils.MemoryUnit#KB} : 千字节</li>
* <li>{@link ConstUtils.MemoryUnit#MB} : 兆</li>
* <li>{@link ConstUtils.MemoryUnit#GB} : GB</li>
* </ul>
* @return 以unit为单位的size
*/
public static double byte2MemorySize(long byteNum, ConstUtils.MemoryUnit unit) {
if (byteNum < 0) return -1;
switch (unit) {
default:
case BYTE:
return (double) byteNum;
case KB:
return (double) byteNum / ConstUtils.KB;
case MB:
return (double) byteNum / ConstUtils.MB;
case GB:
return (double) byteNum / ConstUtils.GB;
}
}
/**
* 字节数转合适内存大小
* <p>保留3位小数</p>
*
* @param byteNum 字节数
* @return 合适内存大小
*/
@SuppressLint("DefaultLocale")
public static String byte2FitMemorySize(long byteNum) {
if (byteNum < 0) {
return "shouldn't be less than zero!";
} else if (byteNum < ConstUtils.KB) {
return String.format("%.3fB", byteNum + 0.0005);
} else if (byteNum < ConstUtils.MB) {
return String.format("%.3fKB", byteNum / ConstUtils.KB + 0.0005);
} else if (byteNum < ConstUtils.GB) {
return String.format("%.3fMB", byteNum / ConstUtils.MB + 0.0005);
} else {
return String.format("%.3fGB", byteNum / ConstUtils.GB + 0.0005);
}
}
/**
* 以unit为单位的时间长度转毫秒时间戳
*
* @param timeSpan 毫秒时间戳
* @param unit 单位类型
* <ul>
* <li>{@link ConstUtils.TimeUnit#MSEC}: 毫秒</li>
* <li>{@link ConstUtils.TimeUnit#SEC }: 秒</li>
* <li>{@link ConstUtils.TimeUnit#MIN }: 分</li>
* <li>{@link ConstUtils.TimeUnit#HOUR}: 小时</li>
* <li>{@link ConstUtils.TimeUnit#DAY }: 天</li>
* </ul>
* @return 毫秒时间戳
*/
public static long timeSpan2Millis(long timeSpan, ConstUtils.TimeUnit unit) {
switch (unit) {
default:
case MSEC:
return timeSpan;
case SEC:
return timeSpan * ConstUtils.SEC;
case MIN:
return timeSpan * ConstUtils.MIN;
case HOUR:
return timeSpan * ConstUtils.HOUR;
case DAY:
return timeSpan * ConstUtils.DAY;
}
}
/**
* 毫秒时间戳转以unit为单位的时间长度
*
* @param millis 毫秒时间戳
* @param unit 单位类型
* <ul>
* <li>{@link ConstUtils.TimeUnit#MSEC}: 毫秒</li>
* <li>{@link ConstUtils.TimeUnit#SEC }: 秒</li>
* <li>{@link ConstUtils.TimeUnit#MIN }: 分</li>
* <li>{@link ConstUtils.TimeUnit#HOUR}: 小时</li>
* <li>{@link ConstUtils.TimeUnit#DAY }: 天</li>
* </ul>
* @return 以unit为单位的时间长度
*/
public static long millis2TimeSpan(long millis, ConstUtils.TimeUnit unit) {
switch (unit) {
default:
case MSEC:
return millis;
case SEC:
return millis / ConstUtils.SEC;
case MIN:
return millis / ConstUtils.MIN;
case HOUR:
return millis / ConstUtils.HOUR;
case DAY:
return millis / ConstUtils.DAY;
}
}
/**
* 毫秒时间戳转合适时间长度
*
* @param millis 毫秒时间戳
* <p>小于等于0，返回null</p>
* @param precision 精度
* <ul>
* <li>precision = 0，返回null</li>
* <li>precision = 1，返回天</li>
* <li>precision = 2，返回天和小时</li>
* <li>precision = 3，返回天、小时和分钟</li>
* <li>precision = 4，返回天、小时、分钟和秒</li>
* <li>precision >= 5，返回天、小时、分钟、秒和毫秒</li>
* </ul>
* @return 合适时间长度
*/
@SuppressLint("DefaultLocale")
public static String millis2FitTimeSpan(long millis, int precision) {
if (millis <= 0 || precision <= 0) return null;
StringBuilder sb = new StringBuilder();
String[] units = {"天", "小时", "分钟", "秒", "毫秒"};
int[] unitLen = {86400000, 3600000, 60000, 1000, 1};
precision = Math.min(precision, 5);
for (int i = 0; i < precision; i++) {
if (millis >= unitLen[i]) {
long mode = millis / unitLen[i];
millis -= mode * unitLen[i];
sb.append(mode).append(units[i]);
}
}
return sb.toString();
}
/**
* bytes转bits
*
* @param bytes 字节数组
* @return bits
*/
public static String bytes2Bits(byte[] bytes) {
StringBuilder sb = new StringBuilder();
for (byte aByte : bytes) {
for (int j = 7; j >= 0; --j) {
sb.append(((aByte >> j) & 0x01) == 0 ? '0' : '1');
}
}
return sb.toString();
}
/**
* bits转bytes
*
* @param bits 二进制
* @return bytes
*/
public static byte[] bits2Bytes(String bits) {
int lenMod = bits.length() % 8;
int byteLen = bits.length() / 8;
// 不是8的倍数前面补0
if (lenMod != 0) {
for (int i = lenMod; i < 8; i++) {
bits = "0" + bits;
}
byteLen++;
}
byte[] bytes = new byte[byteLen];
for (int i = 0; i < byteLen; ++i) {
for (int j = 0; j < 8; ++j) {
bytes[i] <<= 1;
bytes[i] |= bits.charAt(i * 8 + j) - '0';
}
}
return bytes;
}
/**
* inputStream转outputStream
*
* @param is 输入流
* @return outputStream子类
*/
public static ByteArrayOutputStream input2OutputStream(InputStream is) {
if (is == null) return null;
try {
ByteArrayOutputStream os = new ByteArrayOutputStream();
byte[] b = new byte[ConstUtils.KB];
int len;
while ((len = is.read(b, 0, ConstUtils.KB)) != -1) {
os.write(b, 0, len);
}
return os;
} catch (IOException e) {
e.printStackTrace();
return null;
} finally {
CloseUtils.closeIO(is);
}
}
/**
* outputStream转inputStream
*
* @param out 输出流
* @return inputStream子类
*/
public ByteArrayInputStream output2InputStream(OutputStream out) {
if (out == null) return null;
return new ByteArrayInputStream(((ByteArrayOutputStream) out).toByteArray());
}
/**
* inputStream转byteArr
*
* @param is 输入流
* @return 字节数组
*/
public static byte[] inputStream2Bytes(InputStream is) {
if (is == null) return null;
return input2OutputStream(is).toByteArray();
}
/**
* byteArr转inputStream
*
* @param bytes 字节数组
* @return 输入流
*/
public static InputStream bytes2InputStream(byte[] bytes) {
if (bytes == null || bytes.length <= 0) return null;
return new ByteArrayInputStream(bytes);
}
/**
* outputStream转byteArr
*
* @param out 输出流
* @return 字节数组
*/
public static byte[] outputStream2Bytes(OutputStream out) {
if (out == null) return null;
return ((ByteArrayOutputStream) out).toByteArray();
}
/**
* outputStream转byteArr
*
* @param bytes 字节数组
* @return 字节数组
*/
public static OutputStream bytes2OutputStream(byte[] bytes) {
if (bytes == null || bytes.length <= 0) return null;
ByteArrayOutputStream os = null;
try {
os = new ByteArrayOutputStream();
os.write(bytes);
return os;
} catch (IOException e) {
e.printStackTrace();
return null;
} finally {
CloseUtils.closeIO(os);
}
}
/**
* inputStream转string按编码
*
* @param is 输入流
* @param charsetName 编码格式
* @return 字符串
*/
public static String inputStream2String(InputStream is, String charsetName) {
if (is == null || StringUtils.isSpace(charsetName)) return null;
try {
return new String(inputStream2Bytes(is), charsetName);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
/**
* string转inputStream按编码
*
* @param string 字符串
* @param charsetName 编码格式
* @return 输入流
*/
public static InputStream string2InputStream(String string, String charsetName) {
if (string == null || StringUtils.isSpace(charsetName)) return null;
try {
return new ByteArrayInputStream(string.getBytes(charsetName));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
/**
* outputStream转string按编码
*
* @param out 输出流
* @param charsetName 编码格式
* @return 字符串
*/
public static String outputStream2String(OutputStream out, String charsetName) {
if (out == null || StringUtils.isSpace(charsetName)) return null;
try {
return new String(outputStream2Bytes(out), charsetName);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
/**
* string转outputStream按编码
*
* @param string 字符串
* @param charsetName 编码格式
* @return 输入流
*/
public static OutputStream string2OutputStream(String string, String charsetName) {
if (string == null || StringUtils.isSpace(charsetName)) return null;
try {
return bytes2OutputStream(string.getBytes(charsetName));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
/**
* bitmap转byteArr
*
* @param bitmap bitmap对象
* @param format 格式
* @return 字节数组
*/
public static byte[] bitmap2Bytes(Bitmap bitmap, Bitmap.CompressFormat format) {
if (bitmap == null) return null;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(format, 100, baos);
return baos.toByteArray();
}
/**
* byteArr转bitmap
*
* @param bytes 字节数组
* @return bitmap
*/
public static Bitmap bytes2Bitmap(byte[] bytes) {
return (bytes == null || bytes.length == 0) ? null : BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
}
/**
* drawable转bitmap
*
* @param drawable drawable对象
* @return bitmap
*/
public static Bitmap drawable2Bitmap(Drawable drawable) {
return drawable == null ? null : ((BitmapDrawable) drawable).getBitmap();
}
/**
* bitmap转drawable
*
* @param res resources对象
* @param bitmap bitmap对象
* @return drawable
*/
public static Drawable bitmap2Drawable(Resources res, Bitmap bitmap) {
return bitmap == null ? null : new BitmapDrawable(res, bitmap);
}
/**
* drawable转byteArr
*
* @param drawable drawable对象
* @param format 格式
* @return 字节数组
*/
public static byte[] drawable2Bytes(Drawable drawable, Bitmap.CompressFormat format) {
return drawable == null ? null : bitmap2Bytes(drawable2Bitmap(drawable), format);
}
/**
* byteArr转drawable
*
* @param res resources对象
* @param bytes 字节数组
* @return drawable
*/
public static Drawable bytes2Drawable(Resources res, byte[] bytes) {
return res == null ? null : bitmap2Drawable(res, bytes2Bitmap(bytes));
}
/**
* view转Bitmap
*
* @param view 视图
* @return bitmap
*/
public static Bitmap view2Bitmap(View view) {
if (view == null) return null;
Bitmap ret = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(ret);
Drawable bgDrawable = view.getBackground();
if (bgDrawable != null) {
bgDrawable.draw(canvas);
} else {
canvas.drawColor(Color.WHITE);
}
view.draw(canvas);
return ret;
}
/**
* dp转px
*
* @param dpValue dp值
* @return px值
*/
public static int dp2px(float dpValue) {
final float scale = Utils.getContext().getResources().getDisplayMetrics().density;
return (int) (dpValue * scale + 0.5f);
}
/**
* px转dp
*
* @param pxValue px值
* @return dp值
*/
public static int px2dp(float pxValue) {
final float scale = Utils.getContext().getResources().getDisplayMetrics().density;
return (int) (pxValue / scale + 0.5f);
}
/**
* sp转px
*
* @param spValue sp值
* @return px值
*/
public static int sp2px(float spValue) {
final float fontScale = Utils.getContext().getResources().getDisplayMetrics().scaledDensity;
return (int) (spValue * fontScale + 0.5f);
}
/**
* px转sp
*
* @param pxValue px值
* @return sp值
*/
public static int px2sp(float pxValue) {
final float fontScale = Utils.getContext().getResources().getDisplayMetrics().scaledDensity;
return (int) (pxValue / fontScale + 0.5f);
}
}