AlertDialog.Builder in Custom List View Adapter isn't showing

user_11208029 0
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Hello guys so I have a simple X image at the end of each listView items. My image gets clicked because I set clickable parameter in XML. But the AlertDialog isn't triggered because of the context, I think. I have tried many different ways but nothing works, here is my code:

private int resourceLayout;
private Context mContext;
private List<Product> items;

public ListAdapter(Context context, int resource, List<Product> items) { // ListAdapter constructor
   super(context, resource, items);
   this.items = items;
   this.resourceLayout = resource;
   this.mContext = context;
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {

    View v = convertView;

    if (v == null) {
        LayoutInflater vi;
        vi = LayoutInflater.from(mContext);
        v = vi.inflate(resourceLayout, null);
    }

    final Product p = getItem(position);
    ImageView deleteImage= (ImageView) v.findViewById(R.id.delete_image);

    deleteImage.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            new AlertDialog.Builder(mContext)   // Here is the problem, I think. I tried 4 different ways to get to the MainActivity because there is called my constructor but no succes
                    .setIcon(R.drawable.del_button)
                    .setTitle("Are you sure?")
                    .setMessage("Do you want to delete " + p.getName() + " from you shopping cart ?")
                    .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            items.remove(position);
                            notifyDataSetChanged();
                        }
                    })
                    .setNegativeButton("No", null);
        }
    });
android-alertdialog android
2 Answers

I believe that only .show () is missing in the end.

AlertDialog.Builder builder = new AlertDialog.Builder(mContext)
                    .setIcon(R.drawable.del_button)
                    .setTitle("Are you sure?")
                    .setMessage("Do you want to delete " + p.getName() + " from you shopping cart ?")
                    .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            items.remove(position);
                            notifyDataSetChanged();
                        }
                    })
                    .setNegativeButton("No", null);


builder.show();
user_131250100

Looks like there are two instructions missing. create and show. Just below setNegativeButton instruction add them as below.

new AlertDialog.Builder(mContext)   // Here is the problem, I think. I tried 4 different ways to get to the MainActivity because there is called my constructor but no succes
            .setIcon(R.drawable.del_button)
            .setTitle("Are you sure?")
            .setMessage("Do you want to delete " + p.getName() + " from you shopping cart ?")
            .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    notifyDataSetChanged();
                }
            })
            .setNegativeButton("No", null)
            .create().show(); //Take a look at these instructions!

Alert dialog official documentation

user_17105710
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