Basically what I do:
I invoke the method showDialog(PROGRESS_DIALOG_ID);
which looks like (copy paste from the tutorial:
protected Dialog onCreateDialog(int id) {
switch(id) {
case PROGRESS_DIALOG_ID:
progressDialog = new ProgressDialog(this);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setProgress(0);
progressDialog.setMessage("Loading...");
return progressDialog;
default:
return null;
}
}
In a Handler I do a progressDialog.setMessage("Uploading...");, which
works finde.
Later on the handler calls a
activity.dismissDialog(PROGRESS_DIALOG_ID).
Now a second time I do the same as aboth.
I do showDialog(PROGRESS_DIALOG_ID);
But when the handler does the
progressDialog.setMessage("Uploading..."); I get the following strange
Nullpointer inside the ProgressDialog
E/AndroidRuntime( 496): java.lang.NullPointerException
E/AndroidRuntime( 496): at
android.app.ProgressDialog.setMessage(ProgressDialog.java:294)
I'm on android 2.1
Any ideas what could be the problem?
Thanks
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