I am attempting to create a program that saves an mp3 to the Android, which can be accessed by ASTRO. I am开发者_高级运维 attempting to save the file to /sdcard/media/audio. Despite the app going through without a single error on Logcat/DDMS, the file is nowhere to be found. I added the WRITE_EXTERNAL_STORAGE permission (along with Internet, etc.) so it's not that.
Are there restrictions for apps saving files to the sdcard?
Method called:
public void findSong(View view) throws Exception {
edittext = (EditText) findViewById(R.id.edittext);
searchTerm = edittext.getText().toString();
String address;
address = getMusic(searchTerm);
ImageManager img = new ImageManager(); //calls ImageManager (below)
img.DownloadFromUrl(address, title + ".mp3");
}
The downloading method:
private final String PATH = "/data/data"; //put the downloaded file here
public void DownloadFromUrl(String imageURL, String fileName) {
//this is the downloader method
try {
URL url = new URL(imageURL); //you can write here any link
File file = new File(fileName);
long startTime = System.currentTimeMillis();
Log.d("ImageManager", "download begining");
Log.d("ImageManager", "download url:" + url);
Log.d("ImageManager", "downloaded file name:" + fileName);
/* Open a connection to that URL. */
URLConnection ucon = url.openConnection();
/* Define InputStreams to read from the URLConnection. */
InputStream is = ucon.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
/* Read bytes to the Buffer until there is nothing more to read(-1). */
ByteArrayBuffer baf = new ByteArrayBuffer(50);
int current = 0;
while ((current = bis.read()) != -1) {
baf.append((byte) current);
}
/* Convert the Bytes read to a String. */
FileOutputStream fos = new FileOutputStream(PATH + file);
fos.write(baf.toByteArray());
fos.close();
Log.d("ImageManager", "download ready in"
+ ((System.currentTimeMillis() - startTime) / 1000)
+ " sec");
} catch (IOException e) {
Log.d("ImageManager", "Error: " + e);
}
}
Any help appreciated.
If the file is an mp3 you should do:
Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://"+path+filename)));
This will foce an scan and make it available in the media player.
精彩评论