ZipUtils.java
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package com.polysoft.nafmii.utils;
import android.text.TextUtils;
import com.whaty.nafmii.BuildConfig;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
public class ZipUtils {
public static void unZipDistAssets() {
if (BuildConfig.DEBUG) {
FileUtils.deletes(FileUtils.getDistDir());
}
// 已经存在，则不解压
if (FileUtils.getIndex().exists()) {
return;
}
File distDir = FileUtils.getDistDir().getParentFile();
InputStream is = null;
try {
String distpath = "dist.zip";
if (!TextUtils.isEmpty(BuildConfig.ASSETS_DIST_DIR)) {
distpath = String.format("%s/%s", BuildConfig.ASSETS_DIST_DIR, distpath);
}
is = CtxUtils.openAssetsFile(distpath);
unZip(is, distDir);
} catch (IOException e) {
e.printStackTrace();
} finally {
IOUtils.close(is);
}
}
public static void unZip(File zipFile, File outDir) {
FileInputStream fis = null;
try {
fis = new FileInputStream(zipFile);
unZip(fis, outDir);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
IOUtils.close(fis);
}
}
public static void unZip(InputStream is, File outDir) throws IOException {
ZipInputStream zis = new ZipInputStream(is);
ZipEntry entry = null;
while (null != (entry = zis.getNextEntry())) {
unZipEntry(zis, entry, outDir);
}
}
private static void unZipEntry(ZipInputStream zis, ZipEntry entry, File outDir) {
String entryName = entry.getName();
if (entry.isDirectory()) {
File file = new File(outDir, entryName);
file.mkdirs();
return;
}
File file = new File(outDir, entryName);
if (file.exists()) {
file.delete();
}
FileOutputStream fos = null;
try {
file.createNewFile();
fos = new FileOutputStream(file);
byte[] buffer = new byte[4096];
int len = -1;
while ((len = zis.read(buffer)) != -1) {
fos.write(buffer, 0, len);
fos.flush();
}
} catch (IOException e) {
e.printStackTrace();
} finally {
IOUtils.close(fos);
}
}
}