463 lines
15 KiB
Plaintext
463 lines
15 KiB
Plaintext
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package com.novelbook.android.utils;
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import android.content.Context;
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import android.os.Environment;
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import android.util.Log;
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import android.widget.Toast;
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import com.novelbook.android.db.Novel;
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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.OutputStream;
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import java.text.DecimalFormat;
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import java.util.ArrayList;
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import java.util.List;
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public class Fileutil {
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public static String name ;
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public static int folderNum = 0;
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/**
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* 计算目录大小
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*
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* @param dir
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* @return
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*/
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public static long getDirSize(File dir) {
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if (dir == null) {
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return 0;
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}
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// 不是目录
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if (!dir.isDirectory()) {
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return 0;
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}
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long dirSize = 0;
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File[] files = dir.listFiles();
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for (File file : files) {
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if (file.isFile()) {
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dirSize += file.length();
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} else if (file.isDirectory()) {
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// dirSize += file.length();
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// 递归调用
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dirSize += getDirSize(file);
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}
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}
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return dirSize;
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}
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/**
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* 转换文件大小
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*
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* @param fileS
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* @return B/KB/MB/GB
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*/
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public static String formatFileSize(long fileS) {
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if (fileS == 0) {
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return "0.00B";
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}
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DecimalFormat dFormat = new DecimalFormat("#.00");
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String fileSizeString = "";
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if (fileS < 1024) {
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fileSizeString = dFormat.format((double) fileS) + "B";
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} else if (fileS < 1048576) {
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fileSizeString = dFormat.format((double) fileS / 1024) + "KB";
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} else if (fileS < 1073741824) {
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fileSizeString = dFormat.format((double) fileS / 1048576) + "MB";
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} else {
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fileSizeString = dFormat.format((double) fileS / 1073741824) + "GB";
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}
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return fileSizeString;
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}
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/**
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* 文件目录地址
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*
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* @return
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*/
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public static String fileDirectory(String dirPath, String fileName) {
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String filePath = "";
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String storageState = Environment.getExternalStorageState();
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if (storageState.equals(Environment.MEDIA_MOUNTED)) {
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filePath = Environment.getExternalStorageDirectory()
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.getAbsolutePath() + dirPath;
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File file = new File(filePath);
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if (!file.exists()) {
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// 建立一个新的目录
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file.mkdirs();
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}
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filePath = filePath + fileName;
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}
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return filePath;
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}
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/**
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* 获取文件目录
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*
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* @return
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*/
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public static File getDirectoryFile(String dirPath) {
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String storageState = Environment.getExternalStorageState();
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File file = null;
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if (storageState.equals(Environment.MEDIA_MOUNTED)) {
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String filePath = Environment.getExternalStorageDirectory()
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.getAbsolutePath() + dirPath;
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file = new File(filePath);
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if (!file.exists()) {
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// 建立一个新的目录
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file.mkdirs();
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}
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}
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return file;
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}
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/**
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* 检查文件后缀
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*
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* @param checkItsEnd
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* @param fileEndings
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* @return
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*/
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private static boolean checkEndsWithInStringArray(String checkItsEnd,
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String[] fileEndings) {
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for (String aEnd : fileEndings) {
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if (checkItsEnd.endsWith(aEnd))
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return true;
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}
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return false;
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}
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/**
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* 根据不同的后缀打开不同的文件
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*
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* @param fileName
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*/
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/** public static void openFile(Context context, String fileName, File file) {
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Intent intent;
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if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingImage))) {
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intent = OpenFiles.getImageFileIntent(file);
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context.startActivity(intent);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingWebText))) {
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intent = OpenFiles.getHtmlFileIntent(file);
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context.startActivity(intent);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingPackage))) {
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intent = OpenFiles.getApkFileIntent(file);
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context.startActivity(intent);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingAudio))) {
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intent = OpenFiles.getAudioFileIntent(file);
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context.startActivity(intent);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingVideo))) {
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intent = OpenFiles.getVideoFileIntent(file);
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context.startActivity(intent);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingText))) {
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intent = OpenFiles.getTextFileIntent(file);
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context.startActivity(intent);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingPdf))) {
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intent = OpenFiles.getPdfFileIntent(file);
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context.startActivity(intent);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingWord))) {
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intent = OpenFiles.getWordFileIntent(file);
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context.startActivity(intent);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingExcel))) {
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intent = OpenFiles.getExcelFileIntent(file);
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context.startActivity(intent);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingPPT))) {
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intent = OpenFiles.getPPTFileIntent(file);
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context.startActivity(intent);
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} else {
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Toast.makeText(context, "打开文件错误", Toast.LENGTH_SHORT).show();
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}
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} */
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/**
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* 根据不同的后缀imageView设置不同的值
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*
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* @param fileName
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*/
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/** public static void setImage(Context context, String fileName,
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ImageView imageView) {
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if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingImage))) {
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imageView.setImageResource(R.drawable.file_icon_picture);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingWebText))) {
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imageView.setImageResource(R.drawable.file_icon_txt);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingPackage))) {
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imageView.setImageResource(R.drawable.file_icon_rar);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingAudio))) {
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imageView.setImageResource(R.drawable.file_icon_mp3);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingVideo))) {
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imageView.setImageResource(R.drawable.file_icon_video);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingText))) {
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imageView.setImageResource(R.drawable.file_icon_txt);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingPdf))) {
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imageView.setImageResource(R.drawable.file_icon_pdf);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingWord))) {
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imageView.setImageResource(R.drawable.file_icon_office);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingExcel))) {
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imageView.setImageResource(R.drawable.file_icon_office);
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} else if (checkEndsWithInStringArray(fileName, context.getResources()
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.getStringArray(R.array.fileEndingPPT))) {
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imageView.setImageResource(R.drawable.file_icon_office);
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} else {
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imageView.setImageResource(R.drawable.file);
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}
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} */
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/**
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*
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* 返回本地文件列表
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*
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* @param //本地文件夹路径
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*/
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public static List<File> getFileListByPath( String path) {
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Novel bookList = new Novel();
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int fileNum = 0 ;
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File dir = new File(path);
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List<File> folderList = new ArrayList<File>();
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List<File> fileList = new ArrayList<File>();
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// 获取指定盘符下的所有文件列表。（listFiles可以获得指定路径下的所有文件，以数组方式返回）
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File[] files = dir.listFiles();
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// 如果该目录下面为空，则该目录的此方法执行
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if (files == null) {
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return folderList;
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}
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// 通过循环将所遍历所有文件
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for (int i = 0; i < files.length; i++) {
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if (!files[i].isHidden()) {
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if (files[i].isDirectory()) {
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folderList.add(files[i]);
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folderNum++;
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}
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if (files[i].isFile()) {
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if (files[i].toString().contains(".txt")) { //txt".equals(extName)
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fileList.add(files[i]);
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// name = files[i].toString();
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// FileActivity.paths.add(files[i].toString());
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}
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}
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}
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Log.d("Fileutil", folderNum + "");
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}
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folderList.addAll(fileList);
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return folderList;
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}
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public static int getFileNum (List<File> list) {
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File file;
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int num = 0;
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for (int i = 0 ; i<list.size(); i++) {
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file = list.get(i);
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if (file.isFile()){
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num++;
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}
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}
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return num;
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}
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/**
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* 复制一个目录及其子目录、文件到另外一个目录
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*
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* @param src
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* @param dest
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* @throws IOException
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*/
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public static void copyFolder(File src, File dest) {
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if (src.isDirectory()) {
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if (!dest.exists()) {
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dest.mkdir();
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}
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String files[] = src.list();
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for (String file : files) {
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File srcFile = new File(src, file);
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File destFile = new File(dest, file);
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// 递归复制
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copyFolder(srcFile, destFile);
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}
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} else {
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InputStream in;
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OutputStream out;
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try {
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in = new FileInputStream(src);
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out = new FileOutputStream(dest);
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byte[] buffer = new byte[1024];
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int length;
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while ((length = in.read(buffer)) > 0) {
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out.write(buffer, 0, length);
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}
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in.close();
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out.close();
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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}
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/**
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* @param src
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* 源文件路径
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* @param name
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* 源文件名字
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* @param dest
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* 目标目录
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*/
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public static void copyFile(File src, String name, File dest) {
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File file = new File(dest, name);
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InputStream inputStream = null;
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OutputStream outputStream = null;
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|
try {
|
|||
|
|
inputStream = new FileInputStream(src);
|
|||
|
|
outputStream = new FileOutputStream(file);
|
|||
|
|
byte[] b = new byte[1024];
|
|||
|
|
int len = 0;
|
|||
|
|
while ((len = inputStream.read(b)) != -1) {
|
|||
|
|
outputStream.write(b, 0, len);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
outputStream.close();
|
|||
|
|
inputStream.close();
|
|||
|
|
} catch (Exception e) {
|
|||
|
|
// TODO Auto-generated catch block
|
|||
|
|
e.printStackTrace();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 创建目录或文件
|
|||
|
|
*/
|
|||
|
|
public static void createDirorFile(String path, String name, Context context,int check) {
|
|||
|
|
File file = new File(path + File.separator + name);
|
|||
|
|
|
|||
|
|
if (check==0) {// 如果为文件
|
|||
|
|
try {
|
|||
|
|
file.createNewFile();
|
|||
|
|
Toast.makeText(context, "创建文件成功", Toast.LENGTH_SHORT).show();
|
|||
|
|
} catch (IOException e) {
|
|||
|
|
// TODO Auto-generated catch block
|
|||
|
|
e.printStackTrace();
|
|||
|
|
Toast.makeText(context, "创建文件失败", Toast.LENGTH_SHORT).show();
|
|||
|
|
}
|
|||
|
|
} else if(check==1){
|
|||
|
|
// 创建目录
|
|||
|
|
if (file.mkdirs()) {
|
|||
|
|
Toast.makeText(context, "创建目录成功", Toast.LENGTH_SHORT).show();
|
|||
|
|
} else {
|
|||
|
|
Toast.makeText(context, "创建目录失败", Toast.LENGTH_SHORT).show();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 删除一个目录
|
|||
|
|
*/
|
|||
|
|
public static void deleteDir(File dir) {
|
|||
|
|
if (dir == null || !dir.exists() || !dir.isDirectory()) {
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
for (File file : dir.listFiles()) {
|
|||
|
|
if (file.isFile())
|
|||
|
|
file.delete(); // 删除所有文件
|
|||
|
|
else if (file.isDirectory())
|
|||
|
|
deleteDir(file); // 递规的方式删除文件夹
|
|||
|
|
}
|
|||
|
|
dir.delete();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* @param fromDir
|
|||
|
|
* 这个为源目录
|
|||
|
|
* @param fromPath
|
|||
|
|
* 这个为源目录的上一级路径
|
|||
|
|
* @param toName
|
|||
|
|
* 要修改的名字
|
|||
|
|
*/
|
|||
|
|
public static boolean renameFile(File fromDir, String fromPath,
|
|||
|
|
String toName) {
|
|||
|
|
File tempFile = new File(fromPath + File.separator + toName);
|
|||
|
|
if (tempFile.exists()) {
|
|||
|
|
return false;
|
|||
|
|
} else {
|
|||
|
|
return fromDir.renameTo(tempFile);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/** 去掉文件扩展名
|
|||
|
|
*
|
|||
|
|
*
|
|||
|
|
* */
|
|||
|
|
public static String getFileNameNoEx (String filename) {
|
|||
|
|
if ((filename != null) && (filename.length() > 0)) {
|
|||
|
|
int dot = filename.lastIndexOf('.');
|
|||
|
|
if ((dot >-1) && (dot < (filename.length()))) {
|
|||
|
|
return filename.substring(0, dot);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return filename;
|
|||
|
|
}
|
|||
|
|
}
|