Downloading an mp3 file from server in android

Question

I am trying to create an app that can download music files, .mp3 to be precise, from the server.As I am a rookie in this Android Development field so I will appreciate any h

Answer 1

Use this method

private void beginDownload(){
/*
Create a DownloadManager.Request with all the information necessary to start the download
 */
DownloadManager.Request request=new DownloadManager.Request(Uri.parse("http://examplewebsite.com/aaa.mp3"))
        .setTitle("Dummy File")// Title of the Download Notification
        .setDescription("Downloading")// Description of the Download Notification
        .setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE)// Visibility of the download Notification
      // Uri of the destination file    
   .setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "" + System.currentTimeMillis());   
        .setRequiresCharging(false)// Set if charging is required to begin the download
        .setAllowedOverMetered(true)// Set if download is allowed on Mobile network
        .setAllowedOverRoaming(true);// Set if download is allowed on roaming network
DownloadManager downloadManager= (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
downloadID = downloadManager.enqueue(request);// enqueue puts the download request in the queue.

}   

Here is the full code

private Button btnDownload;
private long downloadID;

private BroadcastReceiver onDownloadComplete = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        //Fetching the download id received with the broadcast
        long id = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1);
        //Checking if the received broadcast is for our enqueued download by matching download id
        if (downloadID == id) {
            Toast.makeText(MainActivity.this, "Download Completed", Toast.LENGTH_SHORT).show();
        }
    }
};


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    button=findViewById(R.id.download);

    registerReceiver(onDownloadComplete,new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));

    btnDownload.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            beginDownload();
        }
    });
}

@Override
public void onDestroy() {
    super.onDestroy();
    unregisterReceiver(onDownloadComplete);
}

private void beginDownload(){
    File file=new File(getExternalFilesDir(null),"Dummy");
    /*
    Create a DownloadManager.Request with all the information necessary to start the download
     */
    DownloadManager.Request request=new DownloadManager.Request(Uri.parse("http://speedtest.ftp.otenet.gr/files/test10Mb.db"))
            .setTitle("Dummy File")// Title of the Download Notification
            .setDescription("Downloading")// Description of the Download Notification
            .setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE)// Visibility of the download Notification
            .setDestinationUri(Uri.fromFile(file))// Uri of the destination file
            .setRequiresCharging(false)// Set if charging is required to begin the download
            .setAllowedOverMetered(true)// Set if download is allowed on Mobile network
            .setAllowedOverRoaming(true);// Set if download is allowed on roaming network
    DownloadManager downloadManager= (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
    downloadID = downloadManager.enqueue(request);// enqueue puts the download request in the queue.