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371718330@qq.com
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修改文件工具类
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  • CommonUtil/src/main/java/com/jingewenku/abrahamcaijin/commonutil

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‎CommonUtil/src/main/java/com/jingewenku/abrahamcaijin/commonutil/FileUtils.java

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@@ -1,18 +1,28 @@
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package com.jingewenku.abrahamcaijin.commonutil;
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import android.app.DownloadManager;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.graphics.Bitmap;
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import android.net.Uri;
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import android.os.Environment;
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import android.os.StatFs;
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import android.text.format.Formatter;
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import android.util.Log;
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import com.jingewenku.abrahamcaijin.commonutil.klog.KLog;
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import java.io.*;
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import java.nio.channels.FileChannel;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.zip.GZIPInputStream;
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import java.util.zip.GZIPOutputStream;
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import static com.jingewenku.abrahamcaijin.commonutil.AppFileMgr.closeIO;
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import static com.jingewenku.abrahamcaijin.commonutil.AppValidationMgr.convertStreamToString;
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/**
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* @Description:主要功能:文件管理
@@ -825,4 +835,302 @@ public static void saveAsPNG(Bitmap bitmap, String filePath)
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}
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}
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/**
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* 将文件转成字符串
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*
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* @param file
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* 文件
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* @return
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* @throws Exception
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*/
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public static String getStringFromFile(File file) throws Exception {
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FileInputStream fin = new FileInputStream(file);
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String ret = convertStreamToString(fin);
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// Make sure you close all streams.
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fin.close();
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return ret;
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}
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/**
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* 复制文件
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* @param in
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* @param out
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*/
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public static void copyFile(InputStream in, OutputStream out) {
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try {
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byte[] b = new byte[2 * 1024 * 1024]; //2M memory
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int len = -1;
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while ((len = in.read(b)) > 0) {
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out.write(b, 0, len);
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out.flush();
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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closeIO(in, out);
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}
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}
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/**
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*快速复制
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* @param in
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* @param out
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*/
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public static void copyFileFast(File in, File out) {
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FileChannel filein = null;
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FileChannel fileout = null;
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try {
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filein = new FileInputStream(in).getChannel();
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fileout = new FileOutputStream(out).getChannel();
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filein.transferTo(0, filein.size(), fileout);
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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closeIO(filein, fileout);
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}
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}
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/**
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*分享文件
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* @param context
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* @param title
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* @param filePath
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*/
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public static void shareFile(Context context, String title, String filePath) {
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Intent intent = new Intent(Intent.ACTION_SEND);
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Uri uri = Uri.parse("file://" + filePath);
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intent.setType("*/*");
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intent.putExtra(Intent.EXTRA_STREAM, uri);
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context.startActivity(Intent.createChooser(intent, title));
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}
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/**
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*压缩
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* @param is
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* @param os
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*/
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public static void zip(InputStream is, OutputStream os) {
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GZIPOutputStream gzip = null;
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try {
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gzip = new GZIPOutputStream(os);
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byte[] buf = new byte[1024];
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int len;
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while ((len = is.read(buf)) != -1) {
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gzip.write(buf, 0, len);
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gzip.flush();
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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closeIO(is, gzip);
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}
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}
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/**
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*解压
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* @param is
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* @param os
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*/
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public static void unzip(InputStream is, OutputStream os) {
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GZIPInputStream gzip = null;
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try {
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gzip = new GZIPInputStream(is);
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byte[] buf = new byte[1024];
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int len;
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while ((len = gzip.read(buf)) != -1) {
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os.write(buf, 0, len);
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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closeIO(gzip, os);
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}
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}
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/**
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* 格式化文件大小
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* @param context
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* @param size
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* @return
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*/
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public static String formatFileSize(Context context, long size) {
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return Formatter.formatFileSize(context, size);
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}
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/**
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* 将输入流写入到文件
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* @param is
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* @param file
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*/
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public static void Stream2File(InputStream is, File file) {
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byte[] b = new byte[1024];
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int len;
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FileOutputStream os = null;
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try {
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os = new FileOutputStream(file);
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while ((len = is.read(b)) != -1) {
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os.write(b, 0, len);
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os.flush();
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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closeIO(is, os);
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}
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}
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/**
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* 创建文件夹(支持覆盖已存在的同名文件夹)
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* @param filePath
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* @param recreate
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* @return
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*/
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public static boolean createFolder(String filePath, boolean recreate) {
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String folderName = getFolderName(filePath);
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if (folderName == null || folderName.length() == 0 || folderName.trim().length() == 0) {
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return false;
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}
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File folder = new File(folderName);
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if (folder.exists()) {
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if (recreate) {
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deleteFile(folderName);
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return folder.mkdirs();
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} else {
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return true;
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}
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} else {
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return folder.mkdirs();
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}
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}
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public static boolean deleteFile(String filename) {
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return new File(filename).delete();
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}
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/**
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* 获取文件名
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* @param filePath
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* @return
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*/
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public static String getFileName(String filePath) {
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if (AppStringUtils.isEmpty(filePath)) {
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return filePath;
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}
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int filePosi = filePath.lastIndexOf(File.separator);
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return (filePosi == -1) ? filePath : filePath.substring(filePosi + 1);
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}
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/**
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* 重命名文件\文件夹
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* @param filepath
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* @param newName
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* @return
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*/
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public static boolean rename(String filepath, String newName) {
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File file = new File(filepath);
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return file.exists() && file.renameTo(new File(newName));
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}
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/**
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* 获取文件夹名称
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* @param filePath
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* @return
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*/
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public static String getFolderName(String filePath) {
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if (filePath == null || filePath.length() == 0 || filePath.trim().length() == 0) {
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return filePath;
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}
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int filePos = filePath.lastIndexOf(File.separator);
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return (filePos == -1) ? "" : filePath.substring(0, filePos);
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}
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/**
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* 获取文件夹下所有文件
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* @param path
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* @return
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*/
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public static ArrayList<File> getFilesArray(String path) {
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File file = new File(path);
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File files[] = file.listFiles();
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ArrayList<File> listFile = new ArrayList<File>();
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if (files != null) {
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for (int i = 0; i < files.length; i++) {
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if (files[i].isFile()) {
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listFile.add(files[i]);
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}
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if (files[i].isDirectory()) {
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listFile.addAll(getFilesArray(files[i].toString()));
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}
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}
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}
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return listFile;
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}
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/**
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* 打开图片
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* @param mContext
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* @param imagePath
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*/
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public static void openImage(Context mContext, String imagePath) {
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Intent intent = new Intent("android.intent.action.VIEW");
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intent.addCategory("android.intent.category.DEFAULT");
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intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
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Uri uri = Uri.fromFile(new File(imagePath));
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intent.setDataAndType(uri, "image/*");
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mContext.startActivity(intent);
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}
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/**
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* 打开视频
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* @param mContext
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* @param videoPath
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*/
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public static void openVideo(Context mContext, String videoPath) {
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Intent intent = new Intent("android.intent.action.VIEW");
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intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
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intent.putExtra("oneshot", 0);
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intent.putExtra("configchange", 0);
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Uri uri = Uri.fromFile(new File(videoPath));
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intent.setDataAndType(uri, "video/*");
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mContext.startActivity(intent);
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}
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/**
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* 打开URL
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* @param mContext
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* @param url
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*/
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public static void openURL(Context mContext, String url) {
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Uri uri = Uri.parse(url);
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Intent intent = new Intent(Intent.ACTION_VIEW, uri);
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mContext.startActivity(intent);
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}
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/**
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* 下载文件
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* @param context
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* @param fileurl
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*/
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public static void downloadFile(Context context, String fileurl) {
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DownloadManager.Request request = new DownloadManager.Request(Uri.parse(fileurl));
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request.setDestinationInExternalPublicDir("/Download/", fileurl.substring(fileurl.lastIndexOf("/") + 1));
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DownloadManager downloadManager = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);
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downloadManager.enqueue(request);
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}
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/**
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* 通过APKURL升级应用
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* @param context
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* @param fileurl
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*/
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public static void upgradeApp(Context context, String fileurl) {
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Intent intent = new Intent(context, DownloadService.class);
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intent.putExtra("fileurl", fileurl);
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context.startService(intent);
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}
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}

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