Android执行shell命令打包

Android可直接调用Runtime执行shell命令来实现一些功能，在此进行了一个封装。

将需要执行的命令添加到一个数组，并判断是否已root，还有一个回调接口，执行完后把执行结果封装到一个实体类。还有几个重载的执行方法，主要是接收单个字符串的命令，还有自动判断root的。

    public static void execCommand(String[] commands, boolean isRoot,            ShellCommandListener listener) throws IOException,            InterruptedException, TimeoutException {        int exitCode = -1;        CommandResult result = null;        if (commands == null || commands.length == 0) {            result = new CommandResult(exitCode, null, null);            listener.onCommandFinished(result);        }        Process process = null;        BufferedReader successReader = null;        BufferedReader errorReader = null;        StringBuilder successMsg = null;        StringBuilder errorMsg = null;        DataOutputStream os = null;        process = Runtime.getRuntime().exec(isRoot ? "su" : "sh");        os = new DataOutputStream(process.getOutputStream());        for (String command : commands) {            if (command == null) {                continue;            }            // donnot use os.writeBytes(commmand), avoid chinese charset            // error            os.write(command.getBytes());            os.writeBytes("\n");            os.flush();        }        os.writeBytes("exit\n");        os.flush();        exitCode = process.waitFor();        successMsg = new StringBuilder();        errorMsg = new StringBuilder();        successReader = new BufferedReader(new InputStreamReader(                process.getInputStream()));        errorReader = new BufferedReader(new InputStreamReader(                process.getErrorStream()));        String s = null;        while ((s = successReader.readLine()) != null) {            successMsg.append(s + "\n");        }        while ((s = errorReader.readLine()) != null) {            errorMsg.append(s + "\n");        }        if (exitCode == -257) {            throw new TimeoutException();        }        try {            if (os != null) {                os.close();            }            if (successReader != null) {                successReader.close();            }            if (errorReader != null) {                errorReader.close();            }        } catch (IOException e) {            e.printStackTrace();        }        if (process != null) {            process.destroy();        }        result = new CommandResult(exitCode, successMsg == null ? null                : successMsg.toString(), errorMsg == null ? null                : errorMsg.toString());        listener.onCommandFinished(result);    }    /**     * result of command,     */    public static class CommandResult {        /** result of command **/        public int exitCode;        /** success message of command result **/        public String successMsg;        /** error message of command result **/        public String errorMsg;        public CommandResult(int result) {            this.exitCode = result;        }        public CommandResult(int result, String successMsg, String errorMsg) {            this.exitCode = result;            this.successMsg = successMsg;            this.errorMsg = errorMsg;        }        @Override        public String toString() {            return "exitCode=" + exitCode + "; successMsg=" + successMsg                    + "; errorMsg=" + errorMsg;        }    }    public interface ShellCommandListener {        public void onCommandFinished(CommandResult result);    }