Download an image file and replace existing image file

Question

I am trying to download an image file and override and existing file if it exists.

But it doesn't replace the existing file.

public static String saveBitmap(String url, String fileName, Context context,
        boolean deleteExisting) {
    File cacheDir;
    if (android.os.Environment.getExternalStorageState().equals(
            android.os.Environment.MEDIA_MOUNTED))
        cacheDir = context.getDir("images", Context.MODE_PRIVATE);
    else
        cacheDir = context.getCacheDir();
    if (!cacheDir.exists())
        cacheDir.mkdirs();

    File f = new File(cacheDir, fileName + ".png");
    Bitmap bitmap = null;
    // Is the bitmap in our cache?
    if (f.exists()) {
        bitmap = BitmapFactory.decodeFile(f.getPath());
    }
    if (bitmap != null && !deleteExisting)
        return f.getPath();
    else {
        // Nope, have to download it
        try {
            InputStream input = new URL(url).openConnection().getInputStream();
            bitmap = BitmapFactory.decodeStream(new FlushedInputStream(input));
            // save bitmap to cache for later
            writeFile(bitmap, f);
            return f.getPath();
        } catch (FileNotFoundException ex) {
            ex.printStackTrace();
            return null;
        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
            return null;
        }
    }
}

Answer 1

Go through following code for storing file

private void createDirectoryAndSaveFile(Bitmap imageToSave, String fileName) {

File direct = new File(Environment.getExternalStorageDirectory() + "/DirName");

if (!direct.exists()) {
    File wallpaperDirectory = new File("/sdcard/DirName/");
    wallpaperDirectory.mkdirs();
  }

    File file = new File(new File("/sdcard/DirName/"), fileName);
    if (file.exists())
        file.delete();
    try {
        FileOutputStream out = new FileOutputStream(file);
        imageToSave.compress(Bitmap.CompressFormat.JPEG, 100, out);
        out.flush();
        out.close();

    } catch (Exception e) {
        e.printStackTrace();
    }

}