TopicFieldSelectActivity.java

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/*
copyright 2014 UNL Nimbus Lab 

  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 edu.nimbus.glass;

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

import com.google.android.glass.app.Card;
import com.google.android.glass.widget.CardScrollAdapter;
import com.google.android.glass.widget.CardScrollView;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;


public class TopicFieldSelectActivity extends Activity {

        private CardScrollView mCardScrollView;
        private List<Card> mCards;

 
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            mCards = new ArrayList<Card>();
            
            //get the topic and if we are selecting on a text view --if it is a text view we must add an all fields option.
            Intent intt = getIntent();
            final String topic = intt.getStringExtra("topic");
            final boolean textual = intt.getBooleanExtra("textual", false);
            
            
            ArrayList<String> listOfFields = intt.getStringArrayListExtra("field_names");
            //remove . at start of some words;
            for(int i=0; i < listOfFields.size();i ++){
                if(listOfFields.get(i).startsWith("." ) ){
                        listOfFields.set(i, listOfFields.get(i).substring(1));
                }
                
            }
            if(textual){
                listOfFields.add(0, "All Fields");
            }
            
            //create live cards for viewing.
                for(int i=0;i< listOfFields.size();i++){
                        Card card = new Card(this);
                        card.setText(listOfFields.get(i));
                        card.setFootnote("Topic card");
                        mCards.add(card);
                }
                mCardScrollView = new CardScrollView(TopicFieldSelectActivity.this);
                
                FieldCardScrollAdapter adapter = new FieldCardScrollAdapter();
                mCardScrollView.setAdapter(adapter);
                mCardScrollView.setOnItemClickListener(new OnItemClickListener(){

                        @Override
                        public void onItemClick(AdapterView<?> parent, View view,
                                        int position, long id) {

                                String result = ((Card) parent.getItemAtPosition(position)).getText();
                                
                                //we can simply restart the service which will cause it to set the view correctly due to the behavior
                                //of starting an already running service.
                                Intent intt = new Intent(TopicFieldSelectActivity.this, TopicService.class);    
                                intt.putExtra("topic",topic);
                                //put the graphical or text results in correctly.
                                if(!textual){
                                        intt.putExtra("view_state", TopicService.GRAPH);
                                        intt.putExtra("field",result);

                                }else{


                                        if(result.equals("All Fields")){
                                                intt.putExtra("view_state", TopicService.ALL_FIELDS);
                                        }else{
                                                intt.putExtra("view_state", TopicService.FIELD_FOCUS);
                                                intt.putExtra("field",result);
                                        }

                                }
                                startService(intt);
                                finish();
                        }
                        
                        
                        
                });
                mCardScrollView.activate();
                setContentView(mCardScrollView);

        }
        
        private class FieldCardScrollAdapter extends CardScrollAdapter {
                @Override
                public int findIdPosition(Object id) {
                        return -1;
                }
                
                @Override
                public int findItemPosition(Object item) {
                        return mCards.indexOf(item);
                }
                
                @Override
                public int getCount() {
                        return mCards.size();
                }
                
                @Override
                public Object getItem(int position) {
                        return mCards.get(position);
                }
                
                @Override
                public View getView(int position, View convertView, ViewGroup parent) {
                        return mCards.get(position).toView();
                }
        }
        

}