I want to change the color of row with a different of list

Question

1.00/5 (1 vote)

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adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, seriennummerList)
                {
                    @NonNull
                    @Override
                    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent)
                    {
                        View view = super.getView(position, convertView, parent);
                        boolean treffer = false;
                        if(seriennummerList.size() != 0)
                        {
                            if(serverresponseList.size() != 0)
                            {
                                view.setBackgroundColor(Color.GREEN);

                                for(String serie : serverresponseList)
                                {
                                    for (String server : seriennummerList)
                                    {
                                        if(serie.equals(server))
                                        {
                                            view.setBackgroundColor(Color.RED);
                                            treffer = true;
                                            break;
                                        }
                                    }
                                    if(!treffer)
                                    {
                                        view.setBackgroundColor(Color.GREEN);
                                    }
                                    treffer = false;

                                }
                            }
                            else
                            {
                                view.setBackgroundColor(Color.GREEN);
                            }
                        }
                        return  view;
                    }
                };
                adapter.notifyDataSetChanged();
                listView.setAdapter(adapter);

What I have tried:

adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, seriennummerList)
                {
                    @NonNull
                    @Override
                    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent)
                    {
                        View view = super.getView(position, convertView, parent);
                        boolean treffer = false;
                        if(seriennummerList.size() != 0)
                        {
                            if(serverresponseList.size() != 0)
                            {
                                view.setBackgroundColor(Color.GREEN);

                                for(String serie : serverresponseList)
                                {
                                    for (String server : seriennummerList)
                                    {
                                        if(serie.equals(server))
                                        {
                                            view.setBackgroundColor(Color.RED);
                                            treffer = true;
                                            break;
                                        }
                                    }
                                    if(!treffer)
                                    {
                                        view.setBackgroundColor(Color.GREEN);
                                    }
                                    treffer = false;

                                }
                            }
                            else
                            {
                                view.setBackgroundColor(Color.GREEN);
                            }
                        }
                        return  view;
                    }
                };
                adapter.notifyDataSetChanged();
                listView.setAdapter(adapter);

Posted 13-Jul-20 22:49pm

Member 14655281

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Comments

David Crow 14-Jul-20 14:23pm

Why did you post code twice? If there's no difference between the two, remove one. Otherwise, folks reading this are going to be toggling back and forth between the two trying to figure out what you did differently.

David Crow 14-Jul-20 14:35pm

So what's (not) happening?

I would recommend something like:

public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent)
{
    if (convertView == null)
    {
        LayoutInflater vi = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = vi.inflate(resource_id_of_row, parent, false);
    }

    int nColor = Color.Green;

    // conditions that could change color go here

    convertView.setBackgroundColor(nColor);

    return convertView;
}

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