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The source code is released under:
Apache License
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/** * 920 Text Editor is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. *// ww w. j a v a2 s. c o m * 920 Text Editor is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with 920 Text Editor. If not, see <http://www.gnu.org/licenses/>. */ package th.watsize.filebrowser; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.FileReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.UnsupportedEncodingException; import java.nio.charset.Charset; import java.text.DecimalFormat; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; public class RootUtils { private static String TEMP_PATH = android.os.Environment.getExternalStorageDirectory().getAbsolutePath()+"/.TheCompressYourFiles"; /*** * The number of bytes in a kilobyte. */ public static final double ONE_KB = 1024.0; /*** * The number of bytes in a megabyte. */ public static final double ONE_MB = ONE_KB * ONE_KB; /*** * The number of bytes in a gigabyte. */ public static final double ONE_GB = ONE_KB * ONE_MB; /*** * Returns a human-readable version of the file size, where the input * represents a specific number of bytes. * * @param size * the number of bytes * @return a human-readable display value (includes units) */ public static String byteCountToDisplaySize(long size) { return byteCountToDisplaySize((double) size); } public static String byteCountToDisplaySize(double size) { String displaySize; double ret; if((ret = size / ONE_GB) > 1.0) { displaySize = " G"; }else if((ret = size / ONE_MB) > 1.0) { displaySize = " M"; }else if((ret = size / ONE_KB) > 1.0) { displaySize = " KB"; }else { ret = size; displaySize = " B"; } DecimalFormat df = new DecimalFormat("0.00"); return df.format(ret) + displaySize; } public static String ReadFile(String filename) { return ReadFile(filename, "UTF-8"); } public static String Read(String filename, String encoding) { return Read(new File(filename), encoding); } public static String Read(File file, String encoding) { try { BufferedReader in = new BufferedReader(new FileReader(file)); // Create an array of characters the size of the file char[] allChars = new char[(int) file.length()]; // Read the characters into the allChars array in.read(allChars, 0, (int) file.length()); in.close(); // Convert to a string String allCharsString = new String(allChars); return allCharsString; }catch (IOException ex) { throw new RuntimeException(file + ": trouble reading", ex); } } /** * ?????????, android???????utf-8,??????????????gbk?????????,??????????????????????,??????????ut-8???????? * * @param filename * ?????? * @param encoding * ???????????,???????????????????? * @return */ public static String ReadFile(String filename, String encoding) { return ReadFile(new File(filename), encoding); } public static String ReadFile(File filename, String encoding) { try { FileInputStream fis = new FileInputStream(filename); return ReadFile(fis, encoding); }catch (FileNotFoundException e) { return ""; } } public static String ReadFile(InputStream fis, String encoding) { BufferedReader br; StringBuilder b = new StringBuilder(); String line; String sp = System.getProperty("line.separator"); try { br = new BufferedReader(new InputStreamReader(fis, encoding)); try { while ((line = br.readLine()) != null) { b.append(line).append(sp); } br.close(); }catch (IOException e) { e.printStackTrace(); } }catch (UnsupportedEncodingException e) { e.printStackTrace(); } return b.toString(); } /* public static void writeFile(String path, String text) { writeFile(path, text, "UTF-8", true); } */ /** * ???????, ????????????? * * @param path * @param text * @param encoding * @return * @return */ public static boolean writeFile(String path, String text, String encoding, boolean isRoot) { try { File file = new File(path); String tempFile = TEMP_PATH + "/temp.root.file"; String fileString = path; boolean root = false; if(!file.canWrite() && isRoot) { //?????Root??????????? fileString = tempFile; root = true; } BufferedWriter bw = null; bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(fileString), Charset.forName(encoding))); bw.write(text); bw.close(); if(root) { BufferedReader ret = LinuxShell.execute("ls " + LinuxShell.getCmdPath(fileString) + " " + LinuxShell.getCmdPath(path)); //LinuxShell.execute("rm -r " + LinuxShell.getCmdPath(tempFile)); if(ret == null) return false; } return true; }catch (Exception e) { e.printStackTrace(); return false; } } public static void DeleteFileRoot(String path){ if(LinuxShell.isRoot()){ if(new File(path).isDirectory()){ LinuxShell.execute("rm -f -r "+path); }else{ LinuxShell.execute("rm -r "+path); } } } public static String getExt(String path) { int lastIndex = path.lastIndexOf("."); if(lastIndex == -1) return null; return path.substring(lastIndex + 1).trim().toLowerCase(); } public static ArrayList<File> getFileList(String path, boolean runAtRoot) { ArrayList<File> fileList = new ArrayList<File>(); ArrayList<File> folderList = new ArrayList<File>(); if(runAtRoot == false) { File base = new File(path); File[] files = base.listFiles(); if(files == null) return null; for(File file: files) { if(file.isDirectory()) { folderList.add(file); } else { fileList.add(file); } } }else{ /** ? root */ BufferedReader reader = null; //errReader = null; try { reader = LinuxShell.execute("IFS='\n';CURDIR='"+LinuxShell.getCmdPath(path)+"';for i in `ls $CURDIR`; do if [ -d $CURDIR/$i ]; then echo \"d $CURDIR/$i\";else echo \"f $CURDIR/$i\"; fi; done"); if(reader == null) return null; File f; String line; while ((line = reader.readLine()) != null) { f = new File(line.substring(2)); if(line.startsWith("d")) { folderList.add(f); } else { fileList.add(f); } } }catch (Exception e) { e.printStackTrace(); } } Comparator<File> mComparator = new Comparator<File>() { public int compare(File fl1, File fl2) { return fl1.getName().compareToIgnoreCase(fl2.getName()); } }; //????? Collections.sort(fileList, mComparator); Collections.sort(folderList, mComparator); ArrayList<File> list = new ArrayList<File>(); for(File f:folderList) list.add(f); for(File f:fileList) list.add(f); fileList = null; folderList = null; return list; } }