如何解决Android 将音频/mp3 文件保存到外部存储
我有关于保存音频/mp3 的问题 文件到外部存储 保存文件后，它显示在外部存储中 但是当我打开任何 android 音乐播放器时，文件没有显示在那里 我尝试将文件夹更改为“/storage/emulated/0/Music/”仍然没有显示 即使在下载文件夹中也没有。
该应用程序用于使用 API 从 YouTube 下载音乐
public class DownloadedActivity extends AppCompatActivity implements AdapterMusicDownloaded.ClickCallBack,View.OnClickListener {
private RecyclerView lvManager;
private AdapterMusicDownloaded adapterMusicSearch;
private ArrayList<ItemmusicDownloaded> arrayList = new ArrayList<>();
private LinearLayout llEmptyFile;
private static final String AUTHORITY = "com.free.music.downloader" + ".fileprovider";
public static final String PATH = Environment.getExternalStorageDirectory().toString() + "/FreeMusic/";
public static final String UPDATE_MUSIC = "update_music";
private ImageView imgBackSearch;
private InterstitialAd mInterstitialAd;
private AdView adView;
private ProgressBar loading;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_downloaded_songs);
initViews();
}
private void initViews() {
loading = findViewById(R.id.loading);
adView = findViewById(R.id.adView);
initAdsFull();
MobileAds.initialize(this,getResources().getString(R.string.mobile_id));
AdRequest adRequest = new AdRequest.Builder().build();
adView.loadAd(adRequest);
llEmptyFile = findViewById(R.id.ll_empty_file);
imgBackSearch = findViewById(R.id.img_back_downloaded);
imgBackSearch.setonClickListener(this);
lvManager = findViewById(R.id.lv_main);
linearlayoutmanager manager = new linearlayoutmanager(this);
manager.setorientation(linearlayoutmanager.VERTICAL);
adapterMusicSearch = new AdapterMusicDownloaded(arrayList,this);
adapterMusicSearch.setCallBack(this);
lvManager.setLayoutManager(manager);
lvManager.setAdapter(adapterMusicSearch);
LoadAsync loadAsync = new LoadAsync();
loadAsync.execute();
}
@Override
public void clickItemmusic(int position) {
Intent playIntent = new Intent(Intent.ACTION_VIEW);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
final File photoFile = new File(arrayList.get(position).getLink());
Uri photoURI = FileProvider.getUriForFile(this,AUTHORITY,photoFile);
playIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_GRANT_READ_URI_PERMISSION);
playIntent.setDataAndType(photoURI,"audio/*");
} else {
playIntent.setDataAndType(Uri.parse(arrayList.get(position).getLink()),"audio/*");
}
startActivity(playIntent);
}
@Override
public void clickOptionItemmusic(final int postion,View view) {
PopupMenu popupMenu = new PopupMenu(this,view);
popupMenu.inflate(R.menu.menu_option_main);
popupMenu.show();
popupMenu.setonMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_delete:
File file = new File(arrayList.get(postion).getLink());
boolean deleted = file.delete();
if (deleted) {
Toast.makeText(DownloadedActivity.this,getResources().getString(R.string.delete_finish),Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(DownloadedActivity.this,getResources().getString(R.string.delete_error),Toast.LENGTH_SHORT).show();
}
arrayList.remove(postion);
adapterMusicSearch.notifyDataSetChanged();
break;
case R.id.menu_share_main:
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
final File photoFile = new File(arrayList.get(postion).getLink());
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
Uri photoURI = FileProvider.getUriForFile(DownloadedActivity.this,photoFile);
shareIntent.putExtra(Intent.EXTRA_STREAM,photoURI);
} else {
shareIntent.putExtra(Intent.EXTRA_STREAM,Uri.fromFile(photoFile));
}
shareIntent.setType("audio/*");
startActivity(Intent.createChooser(shareIntent,"Share music"));
break;
default:
break;
}
return false;
}
});
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.img_back_downloaded) {
onBackpressed();
}
}
@Override
public void onBackpressed() {
if (mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
} else {
finish();
}
}
private class LoadAsync extends AsyncTask<Void,Void,String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
llEmptyFile.setVisibility(View.GONE);
loading.setVisibility(View.VISIBLE);
}
@SuppressLint("WrongThread")
@Override
protected String doInBackground(Void... voids) {
arrayList.clear();
File f = new File(PATH);
File[] files = f.listFiles();
if (f.exists()) {
if (files.length <= 0) {
Log.d("sizearrList","0");
return "OK";
} else {
Log.d("sizearrList","2");
arrayList.clear();
Arrays.sort(files,new Comparator() {
public int compare(Object o1,Object o2) {
if (((File) o1).lastModified() > ((File) o2).lastModified()) {
return -1;
} else if (((File) o1).lastModified() < ((File) o2).lastModified()) {
return +1;
} else {
return 0;
}
}
});
for (File aFile : files) {
if (!aFile.isDirectory()) {
String name = aFile.getName();
String path = aFile.getPath();
getTimeVideo(aFile.getAbsolutePath());
Date lastModified = getFileLastModified(path);
arrayList.add(new ItemmusicDownloaded(name,path,lastModified,getTimeVideo(aFile.getAbsolutePath())))
;
} else {
Log.d("myLog","Do not add");
}
}
Log.d("sizeArRSSs",arrayList.size() + "");
for (int i = 0; i < arrayList.size(); i++) {
Log.d("sizeArr",arrayList.get(i).getTitle());
}
}
}
return null;
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
if (arrayList.size() == 0) {
llEmptyFile.setVisibility(View.VISIBLE);
} else {
llEmptyFile.setVisibility(View.GONE);
}
loading.setVisibility(View.GONE);
adapterMusicSearch.notifyDataSetChanged();
}
}
public static Date getFileLastModified(String pathFile) {
File file = new File(pathFile);
return new Date(file.lastModified());
}
private void initAdsFull() {
mInterstitialAd = new InterstitialAd(this);
MobileAds.initialize(this,getResources().getString(R.string.mobile_id));
mInterstitialAd.setAdUnitId(getResources().getString(R.string.ads_full));
mInterstitialAd.loadAd(new AdRequest.Builder().build());
mInterstitialAd.setAdListener(new AdListener() {
@Override
public void onAdClosed() {
finish();
}
});
}
public long getTimeVideo(String pathFile) {
try {
MediaPlayer mp = MediaPlayer.create(this,Uri.parse(pathFile));
int duration = mp.getDuration();
mp.release();
return duration;
} catch (Exception e) {
return 0;
}
}
}
public class DownloadVideoAsyn extends AsyncTask<String,Integer,String> {
private String title;
private int check;
private NotificationCompat.Builder builder;
private notificationmanager manager;
private String CHANNEL_ID = "download_video_tiktok_auto";
private String pathVideo = title + ".mp3";
private int id = 1232;
private Context mContext;
private NotificationChannel mChannel;
Notification noti;
public DownloadVideoAsyn(String title,int check,Context context) {
this.title = title;
this.check = check;
this.mContext = context;
}
public static final String PATH = Environment.getExternalStorageDirectory().toString() + "/FreeMusic/";
private EventDownloadVideoCallBack callBack;
public void setCallBack(EventDownloadVideoCallBack callBack) {
this.callBack = callBack;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
if (check == 2) {
manager = (notificationmanager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
builder = new NotificationCompat.Builder(mContext,CHANNEL_ID);
Intent iCancel = new Intent();
id = id + 1;
iCancel.putExtra("id",id);
iCancel.putExtra("pathVideo",pathVideo);
iCancel.setAction("CANCEL_ACTION");
PendingIntent PICancel = PendingIntent.getbroadcast(mContext,iCancel,PendingIntent.FLAG_UPDATE_CURRENT);
builder.setSmallIcon(R.drawable.ic_download)
.setContentTitle(title.replace("'","") + ".mp3")
.setContentText(mContext.getString(R.string.download))
.setChannelId(CHANNEL_ID)
.setPriority(Notification.PRIORITY_MAX)
.addAction(R.drawable.ic_cancel,"Cancel",PICancel)
.setAutoCancel(true);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
int importance = notificationmanager.IMPORTANCE_HIGH;
mChannel = new NotificationChannel(CHANNEL_ID,"channel-name",importance);
mChannel.setSound(null,null);
manager.createNotificationChannel(mChannel);
}
}
}
@Override
protected String doInBackground(String... strings) {
String link = strings[0];
try {
URL url = new URL(link);
// check folder exist
File folder = new File(PATH);
if (!folder.exists()) {
folder.mkdir();
}
String path = PATH + title.replace("'","") + ".mp3";
File file = new File(path);
long total = 0;
FileOutputStream fileOutputStream = new FileOutputStream(file);
URLConnection connection = url.openConnection();
InputStream inputStream = connection.getInputStream();
int fileLength = connection.getContentLength();
//=============================
byte[] b = new byte[1024];
int count = inputStream.read(b);
while (count != -1) {
total += count;
fileOutputStream.write(b,count);
count = inputStream.read(b);
int progress = (int) (total * 100 / fileLength);
publishProgress(progress);
if (check == 2) {
builder.setProgress(100,progress,false);
builder.setContentText(mContext.getString(R.string.download) + " " + progress + "%");
noti = builder.build();
noti.flags = Notification.FLAG_ONLY_ALERT_ONCE;
manager.notify(id,noti);
if (progress == 100) {
manager.cancel(id);
}
}
}
inputStream.close();
fileOutputStream.close();
} catch (Exception e) {
e.printstacktrace();
try {
URL url = new URL(link);
// check folder exist
File folder = new File(PATH);
if (!folder.exists()) {
folder.mkdir();
}
Date currentTime = Calendar.getInstance().getTime();
title = currentTime.getTime() + "";
String path = PATH + title + ".mp3";
File file = new File(path);
long total = 0;
FileOutputStream fileOutputStream = new FileOutputStream(file);
URLConnection connection = url.openConnection();
InputStream inputStream = connection.getInputStream();
int fileLength = connection.getContentLength();
//=============================
byte[] b = new byte[1024];
int count = inputStream.read(b);
while (count != -1) {
total += count;
fileOutputStream.write(b,count);
count = inputStream.read(b);
int progress = (int) (total * 100 / fileLength);
publishProgress(progress);
if (check == 2) {
builder.setProgress(100,false);
builder.setContentText(mContext.getString(R.string.download) + " " + progress + "%");
noti = builder.build();
noti.flags = Notification.FLAG_ONLY_ALERT_ONCE;
manager.notify(id,noti);
if (progress == 100) {
manager.cancel(id);
}
}
}
inputStream.close();
fileOutputStream.close();
} catch (Exception ex) {
return null;
}
}
return PATH + title + ".mp3";
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
if (s != null) {
Uri uri = Uri.parse("file://" + "/storage/emulated/0/FreeMusic/" + s);
Intent scanFileIntent = new Intent(
Intent.ACTION_MEDIA_SCANNER_SCAN_FILE,uri);
mContext.sendbroadcast(scanFileIntent);
callBack.downloadVideoFinish(s);
}
else {
callBack.downloadVideoFail("Error");
}
}
@Override
protected void onProgressUpdate(Integer... values) {
super.onProgressUpdate(values);
if (check == 1) {
if (callBack != null) {
callBack.updateProgress(values[0]);
}
}
}
public interface EventDownloadVideoCallBack {
void downloadVideoFinish(String s);
void updateProgress(int pro);
void downloadVideoFail(String fail);
}
}
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