Android 이미지 다운로드

이미지 다운로드

이미지 다운로드 코드 

public class ImageDownload extends AsyncTask<String, Void, Void> {
    private String fileName = "Name";
    private final String SAVE_FOLDER = "/Download/";

    @Override
    protected Void doInBackground(String... strings) {
        String savePath = Environment.getExternalStorageDirectory().toString()+SAVE_FOLDER;

        File dir = new File(savePath);
        if (!dir.exists()) {
            dir.mkdirs();
        }

        Date day=new Date();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.KOREA);
        fileName += String.valueOf(sdf.format(day));

        String fileUrl = strings[0];

        String localPath = savePath + fileName + ".jpg";

        try {
            URL imgUrl = new URL(fileUrl);
            HttpURLConnection conn = (HttpURLConnection) imgUrl.openConnection();
            int len = conn.getContentLength();
            byte[] tmpByte = new byte[len];

            InputStream is = conn.getInputStream();
            File file = new File(localPath);

            FileOutputStream fos=new FileOutputStream(file);
            int read;
            for (; ; ) {
                read = is.read(tmpByte);
                if (read <= 0) {
                    break;
                }
                fos.write(tmpByte, 0, read);
            }
            App.getContext().sendBroadcast(new Intent( Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.fromFile(file)) );
            is.close();
            fos.close();
            conn.disconnect();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}