package safeluck.drive.evaluation.util;
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import android.app.Application;
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import android.content.Context;
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import android.content.res.Resources;
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import android.os.Environment;
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import android.text.TextUtils;
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import android.util.Log;
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import com.anyun.exam.lib.MyLog;
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import com.anyun.exam.lib.util.ByteUtil;
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import java.io.BufferedReader;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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public class FileUtil {
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private static final String TAG = "FileUtil";
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/**
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* 读取assert目录下 txt文本文件内容
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* @param context
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* @param assetFileName
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* @return
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*/
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public static StringBuffer readAssetTxtFile(Context context, String assetFileName) {
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String lineTxt = null;
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StringBuffer stringBuffer = new StringBuffer();
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try {
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InputStream inputStream = null;
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try {
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inputStream = context.getAssets()
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.open(assetFileName);
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} catch (IOException e) {
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e.printStackTrace();
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}
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InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
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BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
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while((lineTxt = bufferedReader.readLine()) != null){
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System.out.println(lineTxt);
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stringBuffer.append(lineTxt);
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}
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inputStreamReader.close();
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bufferedReader.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return stringBuffer;
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}
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public static void createdirs(Context context){
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String dir = Environment.getExternalStorageDirectory().getAbsolutePath()+"/"+context.getPackageName();
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File file = new File(dir);
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if (!file.exists()){
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file.mkdir();
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}else{
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Log.i(TAG, "createdirs: 目录已经存在");
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}
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}
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public static StringBuffer readTxtFileFromSD(Context context,String fileName,boolean isRootDir){
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String lineTxt = null;
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StringBuffer stringBuffer = new StringBuffer();
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try {
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String dir = Environment.getExternalStorageDirectory().getAbsolutePath()+"/";
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InputStream inputStream = null;
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if (isRootDir){
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}else{
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dir = dir+context.getPackageName();
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}
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File file = new File(dir,fileName);
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if (!file.exists()){
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MyLog.d(TAG,dir+"目录下"+fileName+"文件不存在");
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return null;
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}
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try {
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inputStream = new FileInputStream(file);
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} catch (IOException e) {
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e.printStackTrace();
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}
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InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
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BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
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while((lineTxt = bufferedReader.readLine()) != null){
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System.out.println(lineTxt);
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stringBuffer.append(lineTxt);
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}
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inputStreamReader.close();
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bufferedReader.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return stringBuffer;
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}
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public static StringBuffer readMCUtFileFromSD(Context context,String fileName){
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String lineTxt = null;
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StringBuffer stringBuffer = new StringBuffer();
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try {
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String dir = Environment.getExternalStorageDirectory().getAbsolutePath()+"/";
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InputStream inputStream = null;
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File file = new File(dir,fileName);
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if (!file.exists()){
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MyLog.d(TAG,dir+"目录下"+fileName+"文件不存在");
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return null;
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}
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try {
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inputStream = new FileInputStream(file);
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} catch (IOException e) {
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e.printStackTrace();
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}
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InputStreamReader inputStreamReader = new InputStreamReader(inputStream,"GB2312");
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BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
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while((lineTxt = bufferedReader.readLine()) != null){
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// System.out.println( ByteUtil.byte2hex(lineTxt.getBytes("ISO-8859-1")));
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stringBuffer.append(lineTxt);
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}
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inputStreamReader.close();
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bufferedReader.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return stringBuffer;
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}
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/**
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*
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* @param fromFile 源文件路径包括文件名（绝对路径）
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* @param toFile
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*/
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public static void copyFile(String fromFile,String toFile){
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try {
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InputStream inputStream =new FileInputStream(fromFile);
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OutputStream outputStream = new FileOutputStream(toFile);
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byte[] bytes = new byte[1024];
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while ((inputStream.read(bytes))>0){
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outputStream.write(bytes);
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}
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inputStream.close();
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outputStream.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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/**
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* 拷贝assert目录下的文件到 安装包目录下
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* @param context
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* @param assertfileName
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*/
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public static void copyAssertFileToSD(Context context,String assertfileName){
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try {
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InputStream inputStream = null;
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try {
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inputStream = context.getAssets()
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.open(assertfileName);
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} catch (IOException e) {
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e.printStackTrace();
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}
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OutputStream outputStream = new FileOutputStream( new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/"+context.getPackageName(), assertfileName));
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byte[] bytes = new byte[1024];
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while ((inputStream.read(bytes))>0){
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outputStream.write(bytes);
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}
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inputStream.close();
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outputStream.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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/**
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* 删除某个文件
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* @param parentPathName 当前文件的父目录一直到根目录（不包括根目录）
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* @param fileName 文件名
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*/
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public static void deleteFile(String parentPathName, String fileName){
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String dir =Environment.getExternalStorageDirectory().getAbsolutePath()+"/";
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dir = dir+parentPathName;
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MyLog.i(TAG,"删除文件"+dir+fileName);
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File file = new File(dir,fileName);
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if (file.exists()){
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file.delete();
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}
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}
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public static byte[] readLocalFile(Context context,String fileName) throws IOException {
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InputStream inputStream = null;
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String dir = Environment.getExternalStorageDirectory().getAbsolutePath()+"/";
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File file = new File(dir,fileName);
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if (!file.exists()){
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MyLog.d(TAG,dir+"目录下"+fileName+"文件不存在");
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return null;
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}
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try {
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inputStream = new FileInputStream(file);
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} catch (IOException e) {
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e.printStackTrace();
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}
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byte[] data = toByteArray(inputStream);
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inputStream.close();
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return data;
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}
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private static byte[] toByteArray(InputStream in) throws IOException {
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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byte[] buffer = new byte[1024 * 4];
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int n = 0;
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while ((n = in.read(buffer)) != -1) {
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out.write(buffer, 0, n);
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}
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return out.toByteArray();
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}
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}
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