Android Open Source - ChicagoWaterWalk-Android Point Of Interest Grid Fragment

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2014 The Illinois-Indiana Sea Grant
 *// w  w w. j av a  2 s . c om
 * 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 org.iisgcp.waterwalk.fragment;

import java.util.ArrayList;
import java.util.List;

import org.iisgcp.waterwalk.R;
import org.iisgcp.waterwalk.activity.PointOfInterestDetailActivity;
import org.iisgcp.waterwalk.adapter.RouteGridAdapter;
import org.iisgcp.waterwalk.adapter.RowItem;
import org.iisgcp.waterwalk.utils.Constants;
import org.iisgcp.waterwalk.utils.OnItemClickedListener;

import android.app.Activity;
import android.content.Intent;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.AdapterView.OnItemClickListener;

public class PointOfInterestGridFragment extends Fragment {

    private RouteGridAdapter mAdapter;
  
  private GridView mList;
    
  private OnItemClickedListener mListener;
  
  /**
     * Create a new instance of DetailsFragment, initialized to
     * show the text at 'index'.
     */
    public static PointOfInterestGridFragment newInstance(String title, int resid) {
      PointOfInterestGridFragment f = new PointOfInterestGridFragment();

        // Supply title and poi input as an argument.
        Bundle args = new Bundle();
        args.putString(Constants.INTENT_TITLE, title);
        args.putInt(Constants.INTENT_RES_ID, resid);
        f.setArguments(args);

        return f;
    }
  
    @Override
    public void onAttach(Activity activity) {
      super.onAttach(activity);
       
      try {
            mListener = (OnItemClickedListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString() + " must implement OnItemClickedListener");
        }
    }
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
       
      setRetainInstance(false);
    }
    
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
      super.onCreateView(inflater, container, savedInstanceState);
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_point_of_interest_grid, container, false);
        mList = (GridView) view.findViewById(R.id.gridview);
        return view;
    }
    
    public void onActivityCreated (Bundle savedInstanceState) {
      super.onActivityCreated(savedInstanceState);

      List<RowItem> rowItems = null;

      TypedArray route = getResources().obtainTypedArray(getArguments().getInt(Constants.INTENT_RES_ID));
      TypedArray pois = getResources().obtainTypedArray(route.getResourceId(5, -1));
      route.recycle();

        List<Integer> imageIds = new ArrayList<Integer>();
      
      rowItems = new ArrayList<RowItem>();

      for (int i = 0; i < pois.length(); i++) {
        TypedArray poi = getResources().obtainTypedArray(pois.getResourceId(i, -1));

        String title = getString(poi.getResourceId(0, -1));
        int imageId = poi.getResourceId(1, -1);

        imageIds.add(imageId);
        
        rowItems.add(buildRow(imageId, title, pois.getResourceId(i, -1)));
        poi.recycle();
      }

      pois.recycle();

        mAdapter = new RouteGridAdapter(getActivity(), ((PointOfInterestGridViewPagerFragment) getParentFragment()).getImageFetcher(), rowItems);

      mList.setAdapter(mAdapter);
      mList.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
            long id) {
          RowItem rowItem = (RowItem) parent.getAdapter().getItem(position);
          
          Intent intent = new Intent(PointOfInterestGridFragment.this.getActivity(), PointOfInterestDetailActivity.class);
          intent.putExtra(Constants.INTENT_TITLE, rowItem.getTitle());
          intent.putExtra(Constants.INTENT_RES_ID, rowItem.getResId());
          mListener.onItemClicked(intent);
        }

      });
    }
    
    @Override
    public void onResume() {
        super.onResume();
        mAdapter.notifyDataSetChanged();
    }

    private RowItem buildRow(int imageId, String title, int resId) {
      RowItem rowItem = new RowItem();
      rowItem.setImageId(imageId);
      rowItem.setTitle(title);
      rowItem.setResId(resId);
      
      return rowItem;
    }
}

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