CODEWITHSUNDEEP
android
Sunny
Sunny

Reputation: 1076

android compressing folder

I am doing a simple android application which consists of compressing folder. Actually the compression process is completed and the file is saved in the defined location. But the problem is when i push the zipped file from the emulator and unzipping it manually the files are corrupted. What's the problem. Is the file become corrupted when we unzip manually?

My folder structure is given below

TestPlay1- contains two sub directories - playlist and content
the directory playlist contains a xml file
the directory content contains files such as images and videos

My code is given below

String zipFile = "/mnt/sdcard/Testplay1.zip";
byte[] buffer = new byte[1024];
FileOutputStream fos = null;
try {
    fos = new FileOutputStream(zipFile);
} catch (FileNotFoundException e1) {
    e1.printStackTrace();
}
ZipOutputStream zos = new ZipOutputStream(fos);
updata = new ArrayList<File>();
contentpath = new File(FOLDER_PATH);
try {
    if (contentpath.isDirectory()) {
        File[] listFile = contentpath.listFiles();
        for (int i = 0; i < listFile.length; i++) {
            if (listFile[i].isDirectory()) {
                File[] contfile = listFile[i].listFiles();
                for (int j = 0; j < contfile.length; j++) {
                    updata.add(contfile[j]);
                    FileInputStream fis = new FileInputStream(contfile[j]);
                    zos.putNextEntry(new ZipEntry(contfile[j].getName()));
                    int length;
                    while ((length = fis.read(buffer)) > 0) {
                        zos.write(buffer, 0, length);
                    }
                    zos.closeEntry();
                    // close the InputStream
                    fis.close();
                }
            }
        }
        zos.close();
    }
    System.out.println("Testplay1 Folder contains=>" + updata);
} catch (Exception e) {
    e.printStackTrace();
    // TODO: handle exception
}

Upvotes: 2

Views: 1558

Answers (1)

Thommy
Thommy

Reputation: 5417

I suggest you to use Zip4j: http://www.lingala.net/zip4j/
There you can just put the Folder to compress and the rest is done by the library

ZipFile zipfile = new ZipFile("/mnt/sdcard/bla.zip");
ZipParameters parameters = new ZipParameters();
parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
zipfile.addFolder("/mnt/sdcard/folderToZip", parameters);

Upvotes: 3

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