BaseListView.java

package com.cellasoft.univrapp.widget;

import android.annotation.TargetApi;
import android.content.Context;
import android.os.Build;
import android.util.AttributeSet;
import android.widget.ListView;
import com.cellasoft.univrapp.adapter.BaseListAdapter;
import com.cellasoft.univrapp.utils.Lists;
import com.cellasoft.univrapp.utils.UIUtils;

import java.util.List;

public class BaseListView<T> extends ListView {

    protected BaseListAdapter<T> adapter;

    public BaseListView(Context context) {
        super(context);
        init(context);
    }

    public BaseListView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
        init(context);
    }

    public BaseListView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init(context);
    }

    protected void init(Context context) {
        setDivider(getResources().getDrawable(
                android.R.drawable.divider_horizontal_bright));
    }

    public void refresh() {
        adapter.refresh();
    }

    public int size() {
        return adapter.getCount();
    }

    public boolean isEmpty() {
        return adapter.getCount() == 0;
    }

    public void clean() {
        adapter.clear();
    }

    public void setItems(List<T> items) {
        if (items == null) {
            items = Lists.newArrayList();
        }
        adapter.setItems(items);
        this.setSelection(1);
    }

    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
    public void addItems(List<T> items) {
        if (items != null) {
            // If the platform supports it, use addAll, otherwise add in loop
            if (UIUtils.hasHoneycomb()) {
                adapter.addAll(items);
            } else {
                for (T item : items) {
                    adapter.add(item);
                }
            }
        }
    }
}