我想要在我的项目中做的是播放我的 Box 帐户中的音频歌曲，因为我正在使用 box api。据我所知，我们无法为 Box api 中的音频文件提供直接音频流，因为我正在尝试从 sd 卡实现渐进式下载和播放音频文件。我知道我可以在完整的下载方法中播放歌曲，但这需要更多的时间来下载而不是播放文件。为此，我在下载文件的进度方法中编写了用于在其中播放音频的代码，但是由于同一首歌曲一次播放多次，因此该方法被调用了很多次。
那么有什么方法可以编写用于在 Box api 中播放渐进式音频的代码。如果是的话，我应该在哪里写呢？
* Download a file and put it into the SD card. In your app, you can put the file wherever you have access to.
*/
final Box box = Box.getInstance(Constants.API_KEY);
String PATH = Environment.getExternalStorageDirectory() + "/chaseyourmusic"+folderpath;
File file = new File(PATH);
file.mkdirs();
final java.io.File destinationFile = new java.io.File(PATH + "/"
+ URLEncoder.encode(items[position].name));
/* final java.io.File destinationFile = new java.io.File(Environment.getExternalStorageDirectory() + "/"
+ URLEncoder.encode(items[position].name));*/
final ProgressDialog downloadDialog = new ProgressDialog(Browse.this);
downloadDialog.setMessage("Downloading " + items[position].name);
downloadDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
downloadDialog.setMax((int) items[position].file.getSize());
downloadDialog.setCancelable(true);
downloadDialog.show();
Toast.makeText(getApplicationContext(), "Click BACK to cancel the download.", Toast.LENGTH_SHORT).show();
final Cancelable cancelable = box.download(authToken, items[position].id, destinationFile, null, new FileDownloadListener() {
@Override
public void onComplete(final String status) {
downloadDialog.dismiss();
if (status.equals(FileDownloadListener.STATUS_DOWNLOAD_OK)) {
//Able to play audio here from sd card but this is playing after completion of download only which is taking more time .
}
else if (status.equals(FileDownloadListener.STATUS_DOWNLOAD_CANCELLED)) {
Toast.makeText(getApplicationContext(), "Download canceled.", Toast.LENGTH_LONG).show();
}
}
@Override
public void onIOException(final IOException e) {
e.printStackTrace();
downloadDialog.dismiss();
Toast.makeText(getApplicationContext(), "Download failed " + e.getMessage(), Toast.LENGTH_LONG).show();
}
@Override
public void onProgress(final long bytesDownloaded) {
downloadDialog.setProgress((int) bytesDownloaded);
//Want to write code here but this method is getting called multiple times which is creating problem in playing audio files from sd card .
}
});
downloadDialog.setOnCancelListener(new OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
cancelable.cancel();
}
});
谢谢