Android 解压文件包
Android解压文件包：
import android.content.Context;
import android.os.Environment;
import org.json.JSONArray;
import org.json.JSONObject;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
/**
* 此工具类可提供压缩与解压缩功能
*
*/
public class ZipTool {
@SuppressWarnings("unchecked")
public static void unzip(String zipFileName, String outputDirectory)
throws IOException {
ZipFile zipFile = null;
try {
zipFile = new ZipFile(zipFileName);
Enumeration e = zipFile.entries();
ZipEntry zipEntry = null;
File dest = new File(outputDirectory);
dest.mkdirs();
while (e.hasMoreElements()) {
zipEntry = (ZipEntry) e.nextElement();
String entryName = zipEntry.getName();
InputStream in = null;
FileOutputStream out = null;
try {
if (zipEntry.isDirectory()) {
String name = zipEntry.getName();
name = name.substring(0, name.length() - 1);
File f = new File(outputDirectory + File.separator
+ name);
f.mkdirs();
} else {
int index = entryName.lastIndexOf("\\");
if (index != -1) {
File df = new File(outputDirectory + File.separator
+ entryName.substring(0, index));
df.mkdirs();
}
index = entryName.lastIndexOf("/");
if (index != -1) {
File df = new File(outputDirectory + File.separator
+ entryName.substring(0, index));
df.mkdirs();
}
File f = new File(outputDirectory + File.separator
+ zipEntry.getName());
// f.createNewFile();
in = zipFile.getInputStream(zipEntry);
out = new FileOutputStream(f);
int c;
byte[] by = new byte[1024];
while ((c = in.read(by)) != -1) {
out.write(by, 0, c);
}
out.flush();
}
} catch (IOException ex) {
ex.printStackTrace();
throw new IOException("解压失败：" + ex.toString());
} finally {
if (in != null) {
try {
in.close();
} catch (IOException ex) {
}
}
if (out != null) {
try {
out.close();
} catch (IOException ex) {
}
}
}
}
} catch (IOException ex) {
ex.printStackTrace();
throw new IOException("解压失败：" + ex.toString());
} finally {
if (zipFile != null) {
try {
zipFile.close();
} catch (IOException ex) {
}
}
}
}
public static String getPath(Context context) {
boolean hasSD = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
String rootPath = hasSD ? (Environment.getExternalStorageDirectory().getPath() + File.separator +"Android" + File.separator + "data" + File.separator+SwitchAppTool.APPLICATION_ID+File.separator+"cache"+File.separator+ "download" + File.separator) : (context.getFilesDir().getPath() + File.separator +"Android" + File.separator + "data" + File.separator+SwitchAppTool.APPLICATION_ID+File.separator+"cache"+File.separator + "download" + File.separator);
File download = new File(rootPath);
if (!download.exists()) {
download.mkdir();
}
return rootPath;
}
public static String getPath(Context context, String str) {
boolean hasSD = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
String rootPath = hasSD ? (Environment.getExternalStorageDirectory().getPath() + File.separator + "Android" + File.separator + "data" + File.separator+SwitchAppTool.APPLICATION_ID+File.separator+"cache"+File.separator + str + File.separator) : (context.getFilesDir().getPath() + File.separator + "Android" + File.separator + "data" + File.separator+SwitchAppTool.APPLICATION_ID+File.separator+"cache"+File.separator+ str + File.separator);
File download = new File(rootPath);
if (!download.exists()) {
download.mkdir();
}
return rootPath;
}
public static String getSrcPath(Context context, String park) {
boolean hasSD = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
String rootPath = hasSD ? (Environment.getExternalStorageDirectory().getPath() + File.separator +"Android" + File.separator + "data" + File.separator+SwitchAppTool.APPLICATION_ID+File.separator+"cache"+File.separator+ "download" + File.separator + "park" + park + File.separator) : (context.getFilesDir().getPath() + File.separator + "Android" + File.separator + "data" + File.separator+SwitchAppTool.APPLICATION_ID+File.separator+"cache"+File.separator+ "download" + File.separator + "park" + park + File.separator);
File download = new File(rootPath);
if (!download.exists()) {
download.mkdir();
}
return rootPath;
}
public static boolean isFileExist(String fileName) {
File file = new File(fileName);
file.isFile();
return file.exists();
}
/**
* 清空压缩包资源列表
*/
public static boolean clearZip(Context context, String park) {
String path = getSrcPath(context, park);
File srcDir = new File(path);
String[] children = srcDir.list();
for (int i = 0; i < children.length; i++) {
if (!new File(srcDir, children[i]).delete()) {
return false;
}
}
return true;
}
public static JSONArray getSrcInfo(Context context) {
String path = getPath(context);
File srcDir = new File(path);
JSONArray jary = new JSONArray();
if (srcDir.list().length!=0){
String[] arg = srcDir.list();
for (String t : arg) {
try {
JSONObject jo = new JSONObject();
File file = new File(path + t + File.separator);
double size = getFileSizes(file) ;
if (t.startsWith("park")){
jo.put("name", t);
jo.put("size", size);
jary.put(jo);
}
} catch (Exception e) {
}
}
}
return jary;
}
public static List<String> getSrcList(Context context) {
String path = getPath(context);
File srcDir = new File(path);
String[] arg = srcDir.list();
List<String> list = new ArrayList<String>();
for (String t : arg) {
list.add(t);
}
return list;
}
public static void delZip(Context context) {
String path = getPath(context) + "temp" + File.separator;
File srcDir = new File(path);
srcDir.delete();
}
/**
* 递归删除掉文件夹及旗下子目录
*
* @param file
*/
public static void delSrc(File file) {
if (file.isFile()) {
file.delete();
return;
}
if (file.isDirectory()) {
File[] childFile = file.listFiles();
if (childFile == null || childFile.length == 0) {
file.delete();
return;
}
for (File f : childFile) {
delSrc(f);
}
file.delete();
}
}
public static long getFileSizes(File f) throws Exception {
long size = 0;
File flist[] = f.listFiles();
for (int i = 0; i < flist.length; i++) {
if (flist[i].isDirectory()) {
size = size + getFileSizes(flist[i]);
} else {
size = size + getFileSize(flist[i]);
}
}
return size;
}
public static long getFileSize(File file) throws Exception {
long size = 0;
if (file.exists()) {
FileInputStream fis = null;
fis = new FileInputStream(file);
size = fis.available();
} else {
file.createNewFile();
}
return size;
}
}