OC 对ISO-8859-1编码格式的进行GZIP解压

    NSString *responseStr = [[NSString alloc] initWithData:responseObject encoding:4];
    NSStringEncoding enc=CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingISOLatin1);
    NSData *testData = [responseStr dataUsingEncoding:enc];
    NSData *aesDe = [LFCGzipUtility ungzipData:testData];
    NSDictionary *dict = [NSDictionary objectFromJSONString:[[NSString alloc] initWithData:aesDe encoding:NSUTF8StringEncoding]];

安卓代码如下

                   byte[] bytes = s.getBytes("ISO-8859-1");
        Log.d("CityRemoteDao", "解压前大小:"+bytes.length);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        GZIPInputStream in = new GZIPInputStream(new ByteArrayInputStream(bytes));
        byte[] buffer = new byte[1024 * 5];
        int len = 0;
        while ((len = in.read(buffer)) > 0) {
            baos.write(buffer, 0, len);
        }
        bytes = baos.toByteArray();
        Log.d("CityRemoteDao", "解压后大小:"+bytes.length);
        s = new String(bytes, "UTF-8");

这里要注意:
1、导入类 LFCGzipUtility.h 这个是别人写好的 类似于安卓GZIPInputStream吧

2、上述LFCGzipUtility类需要 导入libz.dylib / libz.tbd ( for iOS9.0 or later )

LFCGzipUtility下载地址: http://download.csdn.net/detail/lixianyue1991/9833170