Can you post the full stack trace? Usually in a situation like this, if you look further down the stack trace you see a "caused by" clause that points to one of your files and should give a line number...
On Sun, Feb 27, 2011 at 10:45 AM, Patrick <[email protected]>wrote: > 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 > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
