에이치의 모바일 앱 개발

/**
 * Created by lsh on 2016-06-29.
 * version 1.0.1
 */
public class DBunzip extends AsyncTask<Void, Void, Boolean> {
    private String zipFile;  //저장된 zip 파일 위치
    private String localFolderPath; //압출을 풀 위치
    private Context context;
    private int version;

    public DBunzip(Context context, int version, String zipFile, String localFolderPath) {
        this.context = context;
        this.version = version;
        this.zipFile = zipFile;
        this.localFolderPath = localFolderPath;
    }


    //변수 location에 저장된 directory의 폴더를 만듭니다.
    private void _dirChecker(String dir) {
        File f = new File(localFolderPath + dir);

        if (!f.isDirectory()) {
            f.mkdirs();
        }
    }

    @Override
    protected Boolean doInBackground(Void... params) {
        try {
            FileInputStream fin = new FileInputStream(zipFile);
            ZipInputStream zin = new ZipInputStream(fin);
            ZipEntry ze = null;
            while ((ze = zin.getNextEntry()) != null) {
                Log.v("Decompress", "Unzipping " + ze.getName());   //압축이 풀리면서 logcat으로 zip 안에 있던 파일
                if (ze.isDirectory()) {
                    _dirChecker(ze.getName());
                } else {
                    FileOutputStream fout = new FileOutputStream(localFolderPath + "/" + ze.getName());
                    BufferedInputStream in = new BufferedInputStream(zin);  //이렇게 지정하지 않고 unzip을
                    BufferedOutputStream out = new BufferedOutputStream(fout);// 수행하면 속도가 매우 느려
                    byte bytes[] = new byte[1024];                                 // 집니다.
                    int n;

                    while ((n = in.read(bytes)) != -1) {
                        fout.write(bytes, 0, n);
                    }

                    zin.closeEntry();
                    fout.close();

                    rename(ze.getName());
                }
            }
            zin.close();
            return true;
        } catch (Exception e) {
            Log.e("Decompress", "unzip", e);
            return false;
        }
    }

    @Override
    protected void onPostExecute(Boolean result) {
        if (result) {
            Log.e("unzip", "success");
            IntroActivity.AppStart(context);
            DBVersionWrite(version);
        } else {
            Log.e("unzip", "fail");
            IntroActivity.AppFinish(context);
        }
    }

    private void rename(String befoName) {
        File befoFileName = new File(localFolderPath + "/" + befoName);
        File changeFileName = new File(localFolderPath + "/" + "aftername.sqlite");
        befoFileName.getParentFile().exists();
        befoFileName.exists();
        befoFileName.renameTo(changeFileName);
    }

    private void getfilesname() {
        File[] listFiles = (new File(localFolderPath).listFiles());
        for (File file : listFiles)
            Log.e("filename", localFolderPath + "/" + file.getName());
    }

    public void DBVersionWrite(int version) {
        SharedPreferences sharedPreferences;
        SharedPreferences.Editor sharedPreferencesEditor;

        sharedPreferences = context.getSharedPreferences("appleface", Context.MODE_PRIVATE);
        sharedPreferencesEditor = sharedPreferences.edit();

        sharedPreferencesEditor.putInt("appleDB", version);
        sharedPreferencesEditor.commit();
    }
}