private static final String EXTERNAL_STORAGE = Environment.getExternalStorageDirectory().toString();

public boolean writeBitmapOnSDC(String filePath, Bitmap data)
    {

        File bitmapFile = new File(EXTERNAL_STORAGE + filePath);
        File parentFile = new File(bitMapFile.getParent());

        try
        {
            if (!bitmapFile.exists())
            {
                parentFile.mkdirs();
                bitmapFile.createNewFile();

                FileOutputStream fos = new FileOutputStream(bitmapFile);
                data.compress(CompressFormat.PNG, 100, fos);
                fos.flush();
                fos.close();
            }
            return true;

        } 
        catch (Exception e) 
        {
            return false;
        }
    }