private String[] APK_FILES = new String[]{".apk", ".dex", ".odx"};
    private String[] CACHE_FILES = new String[]{"cache", "thumbs", ".image", ".img", "testdata"};
    private String[] LOG_FILES = new String[]{".nomedia", ".log", "log"};
    private String[] TEMP_FILES = new String[]{"tmp", "files", "testdata", "tempdata"};