What adapter shall I use to use HashMap in a ListView

Question

I want to use HashMap for a list of items of Adapter for a ListView. I was going to use ArrayAdapter<> but I can\'t

Answer 1

In your adapter file

MyAdapter.java

 import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.BaseAdapter;
    import android.widget.TextView;

    import java.util.ArrayList;
    import java.util.Map;

    public class MyAdapter extends BaseAdapter {
        private final ArrayList mData;

        public MyAdapter(Map map) {
            mData = new ArrayList();
            mData.addAll(map.entrySet());
        }

        @Override
        public int getCount() {
            return mData.size();
        }

        @Override
        public Map.Entry getItem(int position) {
            return (Map.Entry) mData.get(position);
        }

        @Override
        public long getItemId(int position) {
            // TODO implement you own logic with ID
            return 0;
        }

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

            if (convertView == null) {
                result = LayoutInflater.from(parent.getContext()).inflate(R.layout.my_adapter_item, parent, false);
            } else {
                result = convertView;
            }

            Map.Entry item = getItem(position);

            // TODO replace findViewById by ViewHolder
            ((TextView) result.findViewById(R.id.text1)).setText(item.getKey());
            ((TextView) result.findViewById(R.id.text2)).setText(item.getValue());

            return result;
        }
    }

Call this adapter

public void showCinemas(HashMap cinemas) {
    MyAdapter adapter = new MyAdapter(cinemas);
    list.setAdapter(adapter);
}