package com.ywwxhz.lib.kits;
import android.content.Context;
import android.graphics.Bitmap;
import android.os.Environment;
import android.text.format.Formatter;
import android.util.Log;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigInteger;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.security.MessageDigest;
/**
* Created by ywwxhz on 2014/10/17.
*/
public class FileKit {
/**
* 复制文件(以超快的速度复制文件)
*
* @param srcFile 源文件File
* @param destDir 目标目录File
* @param newFileName 新文件名
* @return 实际复制的字节数，如果文件、目录不存在、文件为null或者发生IO异常，返回-1
*/
public static long copyFile(String srcFile, File destDir, String newFileName) {
long copySizes = 0;
if (!destDir.exists()) {
if (!destDir.mkdirs()) {
System.out.println("无法建立文件夹");
return -1;
}
}
if (newFileName == null) {
System.out.println("文件名为null");
return -1;
}
FileInputStream fsin = null;
FileOutputStream fsout = null;
try {
fsin = new FileInputStream(srcFile);
fsout = new FileOutputStream(new File(destDir, newFileName));
FileChannel fcin = fsin.getChannel();
FileChannel fcout = fsout.getChannel();
long size = fcin.size();
fcin.transferTo(0, fcin.size(), fcout);
fcin.close();
fcout.close();
copySizes = size;
} catch (Exception e) {
e.printStackTrace();
copySizes = -1;
} finally {
if (fsin != null)
try {
fsin.close();
} catch (IOException e) {
e.printStackTrace();
copySizes = -1;
}
if (fsout != null)
try {
fsout.close();
} catch (IOException e) {
e.printStackTrace();
copySizes = -1;
}
}
return copySizes;
}
public static String buildFilePath(String path) {
return Environment.getExternalStorageDirectory().getPath() + File.separator + path;
}
public static boolean checkExternalStorage() {
return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
}
public static long getFolderSize(File file) {
long size = 0;
try {
File[] fileList = file.listFiles();
for (File aFileList : fileList) {
if (aFileList.isDirectory()) {
size = size + getFolderSize(aFileList);
} else {
size = size + aFileList.length();
}
}
} catch (Exception ignored) {
}
return size;
}
public static long getFolderSize(String path) {
File file = new File(path);
long size = 0;
try {
File[] fileList = file.listFiles();
for (File aFileList : fileList) {
if (aFileList.isDirectory()) {
size = size + getFolderSize(aFileList);
} else {
size = size + aFileList.length();
}
}
} catch (Exception ignored) {
}
return size;
}
public static boolean writeFile(String path, String fileName, String content) {
File pathf = new File(path);
if (!pathf.exists()) {
if (!pathf.mkdirs()) {
return false;
}
}
return writeFile(pathf, fileName, content);
}
public static boolean writeFile(File path, String fileName, String content) {
if (!path.exists()) {
path.mkdirs();
}
return writeFile(new File(path, fileName), content);
}
public static boolean writeFile(String fileName, String content) {
return writeFile(new File(fileName), content);
}
public static boolean writeFile(File file, String content) {
return writeFile(file, false, content);
}
public static boolean writeFile(File file, boolean append, String content) {
FileOutputStream fos = null;
FileChannel fc_out = null;
try {
fos = new FileOutputStream(file, append);
fc_out = fos.getChannel();
ByteBuffer buf = ByteBuffer.wrap(content.getBytes());
buf.put(content.getBytes());
buf.flip();
fc_out.write(buf);
} catch (IOException e) {
e.printStackTrace();
return false;
} finally {
if (null != fc_out) {
try {
fc_out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (null != fos) {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return true;
}
public static String getFileContent(String fileName) {
return getFileContent(new File(fileName));
}
public static String getFileContent(File path, String fileName) {
return getFileContent(new File(path, fileName));
}
public static String getFileContent(File file) {
if (!file.exists())
return null;
BufferedReader in = null;
try {
in = new BufferedReader(new FileReader(file));
StringBuilder readString = new StringBuilder();
String currentLine;
while ((currentLine = in.readLine()) != null) {
readString.append(currentLine);
}
return readString.toString();
} catch (IOException e) {
e.printStackTrace();
return null;
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
public static String writeBitmap(String path, String filename, Bitmap bitmap, Bitmap.CompressFormat formate) throws Exception {
File outfile = new File(buildFilePath(path));
// 如果文件不存在，则创建一个新文件
if (!outfile.isDirectory()) {
if (!outfile.mkdirs()) {
throw new RuntimeException("Can't make dirs");
}
}
String suffix;
switch (formate) {
case JPEG:
suffix = ".jpg";
break;
case PNG:
suffix = ".png";
break;
case WEBP:
suffix = ".webp";
break;
default:
suffix = "";
break;
}
String fname = outfile + "/" + filename + suffix;
long startTime = System.currentTimeMillis();
FileOutputStream fos = new FileOutputStream(fname);
bitmap.compress(formate, 90, fos);
long endTime = System.currentTimeMillis();
System.out.println("compress image cost: " + (endTime - startTime)
+ "ms");
fos.flush();
fos.close();
bitmap.recycle();
return fname;
}
public static void deleteDir(File dir) {
File to = new File(dir.getAbsolutePath() + System.currentTimeMillis());
dir.renameTo(to);// in order to fix android java.io.IOException: open failed: EBUSY (Device or resource busy)
// detail http://stackoverflow.com/questions/11539657/open-failed-ebusy-device-or-resource-busy
if (to.isDirectory()) {
String[] children = to.list();
for (String aChildren : children) {
File temp = new File(to, aChildren);
if (temp.isDirectory()) {
deleteDir(temp);
} else if (!temp.delete()) {
Log.d("deleteSDCardFolder", "DELETE FAIL");
}
}
to.delete();
}
}
public static boolean valifyFileMd5(File file, String md5code) {
String value = null;
FileInputStream in = null;
try {
MessageDigest md5 = MessageDigest.getInstance("MD5");
in = new FileInputStream(file);
byte[] buffer = new byte[4096];
int length;
while ((length = in.read(buffer)) != -1) {
md5.update(buffer, 0, length);
}
BigInteger bi = new BigInteger(1, md5.digest());
value = bi.toString(16);
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
if (null != in) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Log.v("md5", value);
return md5code.equals(value);
}
public static String formatFileSize(Context content, long size) {
return Formatter.formatFileSize(content, size);
}
public static boolean isExternalStorageAvalible() {
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
}
}