今天寻思寻思写点啥,不知道写点啥,想起差不多一年前魔改了个flutter压缩库.
地址: https://github.com/jun7572/flutter_zip.git
背景是当时公司有好些zip,这些zip的文件头读不出来还是咋地.结果人家的压缩库根本解压不了.我改了这个压缩库默认读不出的话就是使用gbk,就能解压了.
andriod 这边是
package com.june.flutterzip;
import android.text.TextUtils;
import android.util.Log;
import org.zeroturnaround.zip.ZipEntryCallback;
import org.zeroturnaround.zip.ZipInfoCallback;
import org.zeroturnaround.zip.ZipUtil;
import org.zeroturnaround.zip.commons.FileUtils;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.util.HashMap;
import java.util.Map;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;
import io.flutter.plugin.common.MethodChannel;
public class ArchiveManager {
static private long unziplong=0;
static private long filesize=0;
static void unzip(String unzipPath, final String outPath,final MethodChannel channel,final MethodChannel.Result result){
unziplong=0;
// ZipUtil.unpack(new File(unzipPath), new File(outPath), Charset.forName("GBK"));
//判断编码
String s=null;
try {
s = codeString(unzipPath);
Log.e("test","编码为="+s);
}catch (Exception e) {
e.printStackTrace();
}
if(TextUtils.isEmpty(s)){
s="GBK";
}
//获取大小
File file =new File(unzipPath);
try {
ZipFile zf=new ZipFile(unzipPath);
int size = zf.size();
filesize=size;
Log.e("test","文件数量="+size);
}catch (IOException e) {
e.printStackTrace();
}
//解压
ZipUtil.iterate(file, new ZipEntryCallback() {
@Override
public void process(InputStream in, ZipEntry zipEntry)throws IOException {
unziplong++;
File file =new File(outPath,zipEntry.getName());
if (zipEntry.isDirectory()) {
FileUtils.forceMkdir(file);
}else {
FileUtils.forceMkdir(file.getParentFile());
FileUtils.copy(in, file);
}
Map map=new HashMap<>();
map.put("total",filesize);
map.put("percent",unziplong);
// channel.invokeMethod("process",map);
if(filesize==unziplong){
result.success(null);
}
}
},Charset.forName(s));
//
}
private static String codeString(String fileName)throws Exception {
BufferedInputStream bin =new BufferedInputStream(new FileInputStream(
fileName));
int p = (bin.read() <<8) + bin.read();
String code =null;
switch (p) {
case 0xefbb:
code ="UTF-8";
break;
case 0xfffe:
code ="Unicode";
break;
case 0xfeff:
code ="UTF-16BE";
break;
default:
code ="GBK";
}
return code;
}
}
ios 这边是
if (floor(NSFoundationVersionNumber)> NSFoundationVersionNumber10_9_2) {
#endif
// supported encodings are in [NSString availableStringEncodings]
NSArray<NSNumber*> *encodings=@[@(kCFStringEncodingMacChineseSimp), @(kCFStringEncodingShiftJIS)];
for (NSNumber*encoding in encodings) {
strPath= [NSString stringWithCString:filename encoding:(NSStringEncoding)CFStringConvertEncodingToNSStringEncoding(encoding.unsignedIntValue)];
if (strPath) {
break;
}
}
}else {
// fallback to a simple manual detect for macOS 10.9 or older
NSArray<NSNumber*> *encodings=@[@(kCFStringEncodingMacChineseSimp), @(kCFStringEncodingShiftJIS)];
for (NSNumber*encoding in encodings) {
strPath= [NSString stringWithCString:filename encoding:(NSStringEncoding)CFStringConvertEncodingToNSStringEncoding(encoding.unsignedIntValue)];
if (strPath) {
break;
}
}
}
都是读不出来的时候,就默认使用中文的编码.
attention!!! 注意了!!!这个地址基本我不会维护了,没这时间精力.有用得话就fork去.
希望能帮助同样遇到问题的铁字./滑稽
