/**             * 下面注释的方法是将裁剪之后的图片以Base64Coder的字符方式上             * 传到服务器，QQ头像上传采用的方法跟这个类似             */                        ByteArrayOutputStream stream = new ByteArrayOutputStream();            photo.compress(Bitmap.CompressFormat.JPEG, 60, stream);            byte[] b = stream.toByteArray();            // 将图片流以字符串形式存储下来                        String tp = new String(Base64Coder.encodeLines(b));            /*这个地方大家可以写下给服务器上传图片的实现，直接把字符串tp直接上传就可以了，            服务器处理的方法是服务器那边的事了                        如果下载到的服务器的数据还是以Base64Coder的形式的话，可以用以下方式转换            为我们可以用的图片类型就OK啦*/            Bitmap dBitmap = BitmapFactory.decodeFile(tp);            Drawable drawable = new BitmapDrawable(dBitmap);

package com.xiaoma.piccut.demo;/** * 下面这些注释是下载这个类的时候本来就有的，本来要删除的，但看了下竟然是license * 好东西，留在注释里，以备不时之用，大家有需要加license的可以到下面的网址找哦 *///EPL, Eclipse Public License, V1.0 or later, http://www.eclipse.org/legal//LGPL, GNU Lesser General Public License, V2.1 or later, http://www.gnu.org/licenses/lgpl.html//GPL, GNU General Public License, V2 or later, http://www.gnu.org/licenses/gpl.html//AL, Apache License, V2.0 or later, http://www.apache.org/licenses//BSD, BSD License, http://www.opensource.org/licenses/bsd-license.php/*** A Base64 encoder/decoder.** <p>* This class is used to encode and decode data in Base64 format as described in RFC 1521.** <p>* Project home page: <a href="http://www.mamicode.com/http://www.source-code.biz/base64coder/java/">www.source-code.biz/base64coder/java</a><br>* Author: Christian d‘Heureuse, Inventec Informatik AG, Zurich, Switzerland<br>* Multi-licensed: EPL / LGPL / GPL / AL / BSD.*//** * 这个类在上面注释的网址中有，大家可以自行下载下，也可以直接用这个， * 公开的Base64Coder类（不用深究它是怎么实现的， * 还是那句话，有轮子直接用轮子），好用的要死人了... * 小马也很无耻的引用了这个网址下的东东，吼吼...* @Title: Base64Coder.java* @Package com.xiaoma.piccut.demo* @Description: TODO* @author XiaoMa */public class Base64Coder {//The line separator string of the operating system.private static final String systemLineSeparator = System.getProperty("line.separator");//Mapping table from 6-bit nibbles to Base64 characters.private static char[]    map1 = new char[64];static {   int i=0;   for (char c=‘A‘; c<=‘Z‘; c++) map1[i++] = c;   for (char c=‘a‘; c<=‘z‘; c++) map1[i++] = c;   for (char c=‘0‘; c<=‘9‘; c++) map1[i++] = c;   map1[i++] = ‘+‘; map1[i++] = ‘/‘; }//Mapping table from Base64 characters to 6-bit nibbles.private static byte[]    map2 = new byte[128];static {   for (int i=0; i<map2.length; i++) map2[i] = -1;   for (int i=0; i<64; i++) map2[map1[i]] = (byte)i; }/*** Encodes a string into Base64 format.* No blanks or line breaks are inserted.* @param s  A String to be encoded.* @return   A String containing the Base64 encoded data.*/public static String encodeString (String s) {return new String(encode(s.getBytes())); }/*** Encodes a byte array into Base 64 format and breaks the output into lines of 76 characters.* This method is compatible with <code>sun.misc.BASE64Encoder.encodeBuffer(byte[])</code>.* @param in  An array containing the data bytes to be encoded.* @return    A String containing the Base64 encoded data, broken into lines.*/public static String encodeLines (byte[] in) {return encodeLines(in, 0, in.length, 76, systemLineSeparator); }/*** Encodes a byte array into Base 64 format and breaks the output into lines.* @param in            An array containing the data bytes to be encoded.* @param iOff          Offset of the first byte in <code>in</code> to be processed.* @param iLen          Number of bytes to be processed in <code>in</code>, starting at <code>iOff</code>.* @param lineLen       Line length for the output data. Should be a multiple of 4.* @param lineSeparator The line separator to be used to separate the output lines.* @return              A String containing the Base64 encoded data, broken into lines.*/public static String encodeLines (byte[] in, int iOff, int iLen, int lineLen, String lineSeparator) {int blockLen = (lineLen*3) / 4;if (blockLen <= 0) throw new IllegalArgumentException();int lines = (iLen+blockLen-1) / blockLen;int bufLen = ((iLen+2)/3)*4 + lines*lineSeparator.length();StringBuilder buf = new StringBuilder(bufLen);int ip = 0;while (ip < iLen) {   int l = Math.min(iLen-ip, blockLen);   buf.append (encode(in, iOff+ip, l));   buf.append (lineSeparator);   ip += l; }return buf.toString(); }/*** Encodes a byte array into Base64 format.* No blanks or line breaks are inserted in the output.* @param in  An array containing the data bytes to be encoded.* @return    A character array containing the Base64 encoded data.*/public static char[] encode (byte[] in) {return encode(in, 0, in.length); }/*** Encodes a byte array into Base64 format.* No blanks or line breaks are inserted in the output.* @param in    An array containing the data bytes to be encoded.* @param iLen  Number of bytes to process in <code>in</code>.* @return      A character array containing the Base64 encoded data.*/public static char[] encode (byte[] in, int iLen) {return encode(in, 0, iLen); }/*** Encodes a byte array into Base64 format.* No blanks or line breaks are inserted in the output.* @param in    An array containing the data bytes to be encoded.* @param iOff  Offset of the first byte in <code>in</code> to be processed.* @param iLen  Number of bytes to process in <code>in</code>, starting at <code>iOff</code>.* @return      A character array containing the Base64 encoded data.*/public static char[] encode (byte[] in, int iOff, int iLen) {int oDataLen = (iLen*4+2)/3;       // output length without paddingint oLen = ((iLen+2)/3)*4;         // output length including paddingchar[] out = new char[oLen];int ip = iOff;int iEnd = iOff + iLen;int op = 0;while (ip < iEnd) {   int i0 = in[ip++] & 0xff;   int i1 = ip < iEnd ? in[ip++] & 0xff : 0;   int i2 = ip < iEnd ? in[ip++] & 0xff : 0;   int o0 = i0 >>> 2;   int o1 = ((i0 &   3) << 4) | (i1 >>> 4);   int o2 = ((i1 & 0xf) << 2) | (i2 >>> 6);   int o3 = i2 & 0x3F;   out[op++] = map1[o0];   out[op++] = map1[o1];   out[op] = op < oDataLen ? map1[o2] : ‘=‘; op++;   out[op] = op < oDataLen ? map1[o3] : ‘=‘; op++; }return out; }/*** Decodes a string from Base64 format.* No blanks or line breaks are allowed within the Base64 encoded input data.* @param s  A Base64 String to be decoded.* @return   A String containing the decoded data.* @throws   IllegalArgumentException If the input is not valid Base64 encoded data.*/public static String decodeString (String s) {return new String(decode(s)); }/*** Decodes a byte array from Base64 format and ignores line separators, tabs and blanks.* CR, LF, Tab and Space characters are ignored in the input data.* This method is compatible with <code>sun.misc.BASE64Decoder.decodeBuffer(String)</code>.* @param s  A Base64 String to be decoded.* @return   An array containing the decoded data bytes.* @throws   IllegalArgumentException If the input is not valid Base64 encoded data.*/public static byte[] decodeLines (String s) {char[] buf = new char[s.length()+3];int p = 0;for (int ip = 0; ip < s.length(); ip++) {   char c = s.charAt(ip);   if (c != ‘ ‘ && c != ‘\r‘ && c != ‘\n‘ && c != ‘\t‘)      buf[p++] = c; }   while ((p % 4) != 0)       buf[p++] = ‘0‘;    return decode(buf, 0, p); }/*** Decodes a byte array from Base64 format.* No blanks or line breaks are allowed within the Base64 encoded input data.* @param s  A Base64 String to be decoded.* @return   An array containing the decoded data bytes.* @throws   IllegalArgumentException If the input is not valid Base64 encoded data.*/public static byte[] decode (String s) {return decode(s.toCharArray()); }/*** Decodes a byte array from Base64 format.* No blanks or line breaks are allowed within the Base64 encoded input data.* @param in  A character array containing the Base64 encoded data.* @return    An array containing the decoded data bytes.* @throws    IllegalArgumentException If the input is not valid Base64 encoded data.*/public static byte[] decode (char[] in) {return decode(in, 0, in.length); }/*** Decodes a byte array from Base64 format.* No blanks or line breaks are allowed within the Base64 encoded input data.* @param in    A character array containing the Base64 encoded data.* @param iOff  Offset of the first character in <code>in</code> to be processed.* @param iLen  Number of characters to process in <code>in</code>, starting at <code>iOff</code>.* @return      An array containing the decoded data bytes.* @throws      IllegalArgumentException If the input is not valid Base64 encoded data.*/public static byte[] decode (char[] in, int iOff, int iLen) {if (iLen%4 != 0) throw new IllegalArgumentException ("Length of Base64 encoded input string is not a multiple of 4.");while (iLen > 0 && in[iOff+iLen-1] == ‘=‘) iLen--;int oLen = (iLen*3) / 4;byte[] out = new byte[oLen];int ip = iOff;int iEnd = iOff + iLen;int op = 0;while (ip < iEnd) {   int i0 = in[ip++];   int i1 = in[ip++];   int i2 = ip < iEnd ? in[ip++] : ‘A‘;   int i3 = ip < iEnd ? in[ip++] : ‘A‘;   if (i0 > 127 || i1 > 127 || i2 > 127 || i3 > 127)      throw new IllegalArgumentException ("Illegal character in Base64 encoded data.");   int b0 = map2[i0];   int b1 = map2[i1];   int b2 = map2[i2];   int b3 = map2[i3];   if (b0 < 0 || b1 < 0 || b2 < 0 || b3 < 0)      throw new IllegalArgumentException ("Illegal character in Base64 encoded data.");   int o0 = ( b0       <<2) | (b1>>>4);   int o1 = ((b1 & 0xf)<<4) | (b2>>>2);   int o2 = ((b2 &   3)<<6) |  b3;   out[op++] = (byte)o0;   if (op<oLen) out[op++] = (byte)o1;   if (op<oLen) out[op++] = (byte)o2; }return out; }//Dummy constructor.private Base64Coder() {}} // end class Base64Coder