我有一个场景,在我的聊天应用程序中我想发送照片,照片发送需要时间。我附加了一个进度条(水平)来显示在我的应用程序中发送照片的进度。但我无法更新进度条,因为它是自定义列表视图的项目。
这是我为进度条设置进度的异步任务,但我无法获得它。
class SendPhotoToFriend extends AsyncTask<String, String, String>{
String receiver,path = "";
public SendPhotoToFriend(String path,String receiver) {
// TODO Auto-generated constructor stub
this.path = path;
this.receiver = receiver;
}
@Override
protected String doInBackground(String... arg0) {
// TODO Auto-generated method stub
ServiceDiscoveryManager sdm = ServiceDiscoveryManager
.getInstanceFor(connection);
if (sdm == null)
sdm = new ServiceDiscoveryManager(connection);
sdm.addFeature("http://jabber.org/protocol/disco#info");
sdm.addFeature("jabber:iq:privacy");
// Create the file transfer manager
FileTransferManager manager = new FileTransferManager(
connection);
FileTransferNegotiator.setServiceEnabled(connection, true);
// Create the outgoing file transfer
OutgoingFileTransfer transfer = manager
.createOutgoingFileTransfer(receiver + "/Smack");
System.out.println("Receiver of the file is "+receiver+"/smack");
Log.i("transfere file", "outgoingfiletransfer is created");
try {
long total = 0;
OutgoingFileTransfer.setResponseTimeout(30000);
transfer.sendFile(new File(path), "Description");
Log.i("transfere file", "sending file");
while (!transfer.isDone()) {
//Thread.sleep(1000);
total+=transfer.getProgress();
publishProgress(""+(int)((total*100)/transfer.getFileSize()));
Log.i("transfere file", "sending file status "
+ transfer.getStatus() + "progress: "
+ transfer.getProgress());
if (transfer.getStatus() == org.jivesoftware.smackx.filetransfer.FileTransfer.Status.error) {
Log.i("transfere file", "Errorrr isss: "
+ transfer.getError()+transfer.getPeer());
transfer.cancel();
break;
}
}
} catch (XMPPException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.i("transfere file", "sending file done");
return null;
}
@Override
protected void onProgressUpdate(final String... values) {
// TODO Auto-generated method stub
super.onProgressUpdate(values);
LayoutInflater inflater = (LayoutInflater)getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View view =inflater.inflate(R.layout.user_chat_send_chat, null);
ProgressBar p_Bar = (ProgressBar)view.findViewById(R.id.progress_bar_image);
p_Bar.setProgress(Integer.parseInt(values[0]));
customAdapter1.notifyDataSetChanged();
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
}
}
进度条是自定义列表视图的视图,我想在运行时更新它。
谢谢