Internal/External (Android)

//Storeing to asset/raw folder: not possible, you cannot modify your resources or assets after compile time. Store the file to the sdcard //Create a new folder in SD Card //First check if the sd card is mounted or not if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED)) { // sd card mounted Log.d("SDCard", "SDcard is present"); } String folderName = "Images/"; //depend on you. File folder = new File(Environment.getExternalStorageDirectory() + File.separator + folderName"); String dicRectoryPath = folder.getAbsolutePath(); if(!folder.exists()) { folder.mkdirs(); //Creates the directory named by this abstract pathname Log.d("SDcard", "Folder created"); } else { Log.d("SDCard", "Folder already exists"); } String content = "hello world"; FileOutputStream outputStream; try { outputStream = new FileOutputStream(dicRectoryPath + "nameofyourfile"); outputStream.write(content.getBytes()); outputStream.close(); } catch (IOException e) { e.printStackTrace(); } //Note /* You can try Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) instead of Environment.getExternalStorageDirectory() to save the file in the Downloads directory of your external storage. - getExternalStoragePublicDirectory(String type) requires one of these strings: DIRECTORY_MUSIC, DIRECTORY_PODCASTS, DIRECTORY_RINGTONES, DIRECTORY_ALARMS, DIRECTORY_NOTIFICATIONS, DIRECTORY_PICTURES, DIRECTORY_MOVIES, DIRECTORY_DOWNLOADS, or DIRECTORY_DCIM. May not be null. */ //You should try to use "ShowDialog" to let users know when the process finished.