You can modify ur program like this:
......................
{
ProgressDialog mDialog1;
private static final int DIALOG1_KEY = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.progressbar);
showDialog(DIALOG1_KEY);
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DIALOG1_KEY: {
ProgressDialog dialog = new ProgressDialog(this);
dialog.setMessage("Please wait while loading...");
dialog.setIndeterminate(true);
dialog.setCancelable(true);
return dialog;
}
return null;
}
}
Nur Al Hasan
New Delhi, India
On Aug 31, 3:09 am, WoodManEXP <[email protected]> wrote:
> Hi Juan,
>
> This is pretty easy to do.
>
> One way is to implement a class in your UI class that extends
> AsyncTask. Then you can instantiate the ProgressDialog class (which
> you may want to extend for various reasons) in the constructor. In the
> doInBackground method call publishProgress which will call across the
> thread boundary to onProgressUpdate (for which your sub class provides
> an implementation). onProgressUpdate interacts directly with the
> ProgressDialog (if you tried to do that from doInBackground it will
> throw an exception).
>
> By subclassing ProgressDialog you can arrange to change the text and
> style of the progress bar (determinate/imdeterminate) and other
> characteristics as you want to show progress.
>
> You can pass all kinds of useful progress information through
> publishProgress which onProgressUpdate can interpret.
>
> Another neat trick is to implement a Toast in onPostExecute showing
> the result of the async operation, if that would be useful to the user
> (like maybe success or failure).
>
> Hope this helps.
>
> On Aug 30, 1:58 am, "Juan David Trujillo C." <[email protected]>
> wrote:
>
> > Hi all!
>
> > I am creating an app that show a Progress dialog in AsyncTask to
> > inform the user while web information is being fetched. I've read
> > there are two ways of doing this: Using handlers or creating and
> > executing an inner class that overrides the AsyncTask class
>
> > I am trying to create and executing inner class that overrides the
> > AsyncTask class, which runs a resource-intensive thread in the
> > background, to provide progress updates, and reports back when
> > finished.
>
> > On the OnCreate, I have:
> > protected Dialog onCreateDialog(int id) {
> > return ProgressDialog.show(ListSituation.this, "", "Loading.
> > Please wait...", true);
>
> > }
>
> > throws the following error:
> > android.util.AndroidRuntimeException: requestFeature() must be called
> > before adding content
>
> > On the other hand, if I do it this way:
> > protected Dialog onCreateDialog(int id) {
> > return progressDialog();
>
> > }
>
> > public Dialog progressDialog(){
> > Log.d("Tifersons", "****************************Entra a
> > progressDialog..");
> > ProgressDialog dialog = new ProgressDialog(this);
> > dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
> > dialog.setMessage("Loading...");
> > dialog.setIndeterminate(true);
> > dialog.setCancelable(false);
> > return dialog;
>
> > }
>
> > No dialog gets shown.
>
> > This is being done inside an activity included in a Tab. When I
> > switch to another Activity in the tab, the progressDialog gets shown.
>
> > Thanks for your help,
>
> > Best regards,
>
> > Juan.
>
>
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