au.gov.ga.worldwind.androidremote.client.ui.ItemModelPagerAdapter.java Source code

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Here is the source code for au.gov.ga.worldwind.androidremote.client.ui.ItemModelPagerAdapter.java

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/*******************************************************************************
 * Copyright 2012 Geoscience Australia
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package au.gov.ga.worldwind.androidremote.client.ui;

import android.support.v4.view.PagerAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import au.gov.ga.worldwind.androidremote.client.R;
import au.gov.ga.worldwind.androidremote.client.state.ItemModelState;
import au.gov.ga.worldwind.androidremote.shared.model.Item;

/**
 * Pager adapter used by the {@link ItemModelFragment}'s ViewPager. Displays a
 * ListView in each page which displays an {@link Item}'s children.
 * 
 * @author Michael de Hoog (michael.dehoog@ga.gov.au)
 */
public class ItemModelPagerAdapter extends PagerAdapter {
    private final ItemModelState state;
    private final LayoutInflater inflater;
    private final boolean flatten;

    public ItemModelPagerAdapter(LayoutInflater inflater, ItemModelState state, boolean flatten) {
        this.state = state;
        this.inflater = inflater;
        this.flatten = flatten;
    }

    @Override
    public int getCount() {
        int count = state.getCount();
        if (flatten) {
            count = Math.min(count, 1);
        }
        return count;
    }

    @Override
    public Object instantiateItem(ViewGroup container, final int position) {
        View view = inflater.inflate(R.layout.list_fragment, null);
        ListView listView = (ListView) view.findViewById(android.R.id.list);
        Item item = state.getItem(position);
        listView.setAdapter(state.createListAdapter(inflater, item, flatten));
        listView.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parentView, View childView, int listPosition, long id) {
                state.click(position, listPosition, flatten);
            }
        });
        container.addView(view);
        return view;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView((View) object);
    }

    @Override
    public int getItemPosition(Object object) {
        return POSITION_NONE;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == object;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return state.getPageTitle(position);
    }
}