对话框下载进度在第二次下载尝试时始终显示为100%
对话框下载进度在第二次下载尝试时始终显示为100%
提问于 2012-03-20 09:29:25
我需要帮助，我的DIALOG_DOWNLOAD_PROGRESS总是在onPreExecute()上显示100% (第二次下载尝试)。如何让它从第二次尝试下载时的0%开始。这里需要帮助。谢谢
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DIALOG_DOWNLOAD_PROGRESS:
mProgressDialog = new ProgressDialog(this);
mProgressDialog.setMessage("Downloading file..");
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
mProgressDialog.setCancelable(true);
mProgressDialog.show();
return mProgressDialog;
default:
return null;
}
}类DownloadFileAsync扩展了AsyncTask {
@Override
protected void onPreExecute() {
super.onPreExecute();
showDialog(DIALOG_DOWNLOAD_PROGRESS);
}……
}
protected void onProgressUpdate(String... progress) {
Log.d("ANDRO_ASYNC",progress[0]);
mProgressDialog.setProgress(Integer.parseInt(progress[0]));
}
@Override
protected void onPostExecute(String unused) {
dismissDialog(DIALOG_DOWNLOAD_PROGRESS);
}回答 2
Stack Overflow用户
回答已采纳
发布于 2012-03-20 09:39:51
由于创建对话框只调用一次onCreateDialog，因此您必须在onPrepareDialog中重置对话框，每次显示对话框之前都会调用该对话框。
@Override
protected void onPrepareDialog(int id, Dialog dialog, Bundle args)
if (id == DIALOG_DOWNLOAD_PROGRESS)
mProgressDialog.setProgress(0);
}Stack Overflow用户
发布于 2013-06-22 03:36:45
protected Dialog onCreateDialog(int id){
switch(id){
case 0:
_progressDialog = new ProgressDialog(null);
_progressDialog.setTitle("Downloading files..");
_progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
_progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "Hide", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d(TAG, "hide");
}
});
_progressDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d(TAG, "cancel");
cancelLoad();
}
private void cancelLoad() {
// TODO Auto-generated method stub
}
});
}
return _progressDialog;
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/9780277
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