Hello,
I am facing a strange issue. I suppose it is due to my bad
understanding of processes and compatibilities with processes.
So here is the behavior I'd like to have :
When I open my map, actions are done in background.
So I use a progress dialog. For that I need an separate thread.
But if an error occurs, I'd like to display a warning pop up. This
popup show request is done inside the run method of the separated
thread.
And the warning dialog is never displayed ! I don't understand why.
Can anyone explain me what is wrong ?
I join my code snippet to give a picture of what i try to do.
I also check the API demo and try to override the method
OnCreateDialog method but with the same result :-(
I suppose the issue is "when" I call the show().
----------------- Code snippet
public class StationNearActivity extends MapActivity implements
OnClickListener, Runnable {
/** Called when the activity is first created. */
public void onCreate(Bundle icicle) {
pgd = ProgressDialog.show(this, null,
getString(R.string.nearest_station_progress_dialog_wait));
/*------------------------
I create the dialog here
-------------------------*/
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(R.string.nearest_station_gm__popup_no_address_found_label);
dlg = builder.create();
/*------------------------------
if I display it there then it works ! But it is not the correct
behaviour
dlg.show()
-----------------------------*/
super.onCreate(icicle);
thisInstance = this;
mapViewFromXML.setClickable(true);
mapViewFromXML.setEnabled(true);
}
Thread threadOfMap = new Thread(this);
threadOfMap.start();
}
public void run() {
Looper.prepare();
try {
Thread.sleep(200);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// --- Fill the map
try {
setMapCenter();
if (mapCenter == null || (mapCenter.getLatitudeE6() == 0
&& mapCenter.getLongitudeE6() == 0)) {
/*------------------------------
The "progress dialog dismiss" works but the "dialog show" not !
-----------------------------*/
pgd.dismiss();
dlg.show();
}
Log.d("MAP", "add overlay");
//....
mapViewFromXML.postInvalidate();
} catch (Exception e) {
Log.e(Constant.LOG_NS2_MAP, e.toString(), e);
} finally {
pgd.dismiss();
}
}
}
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