android shell 拷貝目錄及文件和普通方式拷貝目錄和文件方式（原創）

1. shell 拷貝目錄及文件方式：（利用shell命令copy，簡單粗暴）

   // 直接copy到機身
   String command = "cp -r " + sd_path + " " + data_path;
   ShellUtils.CommandResult commandResult = ShellUtils.execCommand(command, false, true);
   // ShellUtils execCommand()方法
   public static CommandResult execCommand(String[] commands, boolean isRoot, boolean isNeedResultMsg) {
           int result = -1;
           if (commands == null || commands.length == 0) {
               return new CommandResult(result, null, null);
           }
   
           Process process = null;
           BufferedReader successResult = null;
           BufferedReader errorResult = null;
           StringBuilder successMsg = null;
           StringBuilder errorMsg = null;
   
           DataOutputStream os = null;
           try {
               process = Runtime.getRuntime().exec(isRoot ? COMMAND_SU : COMMAND_SH);
               os = new DataOutputStream(process.getOutputStream());
               for (String command : commands) {
                   if (command == null) {
                       continue;
                   }
   
                   // do not use os.writeBytes(command), avoid chinese charset error
                   os.write(command.getBytes());
                   os.writeBytes(COMMAND_LINE_END);
                   os.flush();
               }
               os.writeBytes(COMMAND_EXIT);
               os.flush();
   
               result = process.waitFor();
               // get command result
               if (isNeedResultMsg) {
                   successMsg = new StringBuilder();
                   errorMsg = new StringBuilder();
                   successResult = new BufferedReader(new InputStreamReader(process.getInputStream()));
                   errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream()));
                   String s;
                   while ((s = successResult.readLine()) != null) {
                       successMsg.append(s);
                   }
                   while ((s = errorResult.readLine()) != null) {
                       errorMsg.append(s);
                   }
               }
           }  catch (Exception e) {
               e.printStackTrace();
           } finally {
               try {
                   if (os != null) {
                       os.close();
                   }
                   if (successResult != null) {
                       successResult.close();
                   }
                   if (errorResult != null) {
                       errorResult.close();
                   }
               } catch (IOException e) {
                   e.printStackTrace();
               }
   
               if (process != null) {
                   process.destroy();
               }
           }
           return new CommandResult(result, successMsg == null ? null : successMsg.toString(), errorMsg == null ? null
                   : errorMsg.toString());
       }

2. 普通代碼拷貝目錄和文件方式：

public void copyFolder(String oldPath, String newPath) {

        try {
            File file = new File(newPath);
            if (!file.exists()) file.mkdirs(); //創建新文件夾 
            File a = new File(oldPath);
            String[] file = a.list();
            File temp = null;
            for (int i = 0; i < file.length; i++) {
                if (oldPath.endsWith(File.separator)) {
                    temp = new File(oldPath + file[i]);
                } else {
                    temp = new File(oldPath + File.separator + file[i]);
                }

                if (temp.isFile()) {
                    FileInputStream input = new FileInputStream(temp);
                    FileOutputStream output = new FileOutputStream(newPath + "/" +
                            (temp.getName()).toString());
                    byte[] b = new byte[1024];
                    int len;
                    while ((len = input.read(b)) != -1) {
                        output.write(b, 0, len);
                    }
                    output.flush();
                    output.close();
                    input.close();
                }
                if (temp.isDirectory()) {//遞歸拷貝 
                    copyFolder(oldPath + "/" + file[i], newPath + "/" + file[i]);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }