Question

Im opening a ListActivity with an xml called list with a ListView named list. I have an array adapter set up and working in another activity (not a list activity though, just a normal activity) and it all works fine. When I try to open this list activity though, I get an error saying that I need a ListView with the id android.R.id.list. I have that ListView though. What is my problem?

Code for my AlertDialog I am trying to get to work.

public void onListItemClick(ListView parent, View v, int position,
long id)

    {
        Context mContext = getApplicationContext();
        Dialog dialog = new Dialog(mContext);

        dialog.setContentView(R.layout.custom_dialog);
        dialog.setTitle(getText(position));

        ImageView image = (ImageView) alertDialog.findViewById(R.id.image);
        image.setImageResource(R.drawable.hydrogen);




        }

and this was another code i had trying to get it to work

        public void onListItemClick(ListView parent, View v, int position,
                long id) {
            new AlertDialog.Builder(Anions.this);
                alertDialog.setContentView(R.layout.custom_dialog);
                alertDialog.setTitle(anions[position]);
            ImageView image = (ImageView) alertDialog.findViewById(R.id.image);
            image.setImageResource(R.drawable.hydrogen);
            alertDialog.setButton("Done", new DialogInterface.OnClickListener(){
                public void onClick(DialogInterface dialog, int which){
                    return;
                }
            }

            );
            alertDialog.show();


        }

Answer 1

Ok. So I finally found what I needed after going through who knows how many sites. Anyways here is the code that finally worked for anyone else out there who runs into a problem like this.

public void onListItemClick(ListView parent, View v, int position, long id) {

if
(“Acetate”.equals(anions[position]))

{ Dialog dialog = new Dialog(this);
dialog.setContentView(R.layout.custom_dialog);
dialog.setTitle(“Acetate”);
dialog.setCancelable(true);

ImageView img = (ImageView)
dialog.findViewById(R.id.ImageView01);
img.setImageResource(R.drawable.element_el);

dialog.show();

}

my final code will probably vary from this but this works. For more information about this go to http://www.androidear.com/developers/how-to-display-a-custom-dialog-in-your-android-application/comment-page-1/#comment-1570