我正在尝试将外部 mp3 下载到内部存储中。但是,我尝试下载的文件很大,因此我尝试以 1MB 的大小下载它们,以便您可以在下载其余文件的同时开始播放它们。这是我的流代码:
InputStream is = null;
OutputStream os = null;
try {
HttpClient client = new DefaultHttpClient();
HttpGet get = new HttpGet( url );
HttpResponse response = client.execute( get );
MyLog.d( "Connection established" );
byte[] buffer = new byte[8192];
is = new BufferedInputStream( response.getEntity().getContent(), buffer.length );
os = openFileOutput( filename, MODE_PRIVATE );
int size;
int totalSize = 0;
while (( size = is.read( buffer ) ) != -1 && totalSize < 1048576) {
os.write( buffer, 0, size );
totalSize += size;
}
MyLog.d( "Finished downloading mix - " + totalSize + " bytes" );
}
catch (ClientProtocolException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
finally {
if ( os != null ) {
try {
os.flush();
os.close();
}
catch (IOException e) {
MyLog.e( "Failed to close output stream." );
}
}
if ( is != null ) {
try {
is.close();
}
catch (IOException e) {
MyLog.e( "Failed to close input stream." );
}
}
}
它可以很好地下载文件,但是当它在 finally 语句中到达 is.close() 时,它会挂起。如果我等待很长时间,它最终会关闭。似乎它仍在下载文件的其余部分。如何避免这种情况并立即关闭流?