SDScanner

External Storage Scanner

An Android app that scans all external storage and shows the largest files.

• App allows the user to start and stop scanning.
• Displaying progress of ongoing scan.
• App allow user to share obtained statistics of scan.
• Showed Notification while it scans the external storage.
• Handled screen orientation changes.

Below code for scanning:

private void scanFiles(String path) {
    File[] files = new File(path).listFiles();
    if (files != null && files.length > 0) {
        for (File file : files) {
            if (fileScannerTask.isCancelled()) {
                break;
            }

            try {
                Thread.sleep(1);
                updateProgress();
            } catch (Exception e) {
                e.printStackTrace();
            }

            if (file.isDirectory()) {
                scanFiles(file.getPath());
            }

            String fileName = file.getName();
            this.fileInfoList.add(new FileInfo(fileName, file.length()));
            String fileExt = FileUtils.getFileExt(fileName);
            if (this.fileExts.containsKey(fileExt)) {
                this.fileExts.put(fileExt, this.fileExts.get(fileExt) + 1);
            } else {
                this.fileExts.put(fileExt, 1);
            }
        }
    }
}