FileDocCategorySizeDatePackage
MyRssReader2.javaAPI DocAndroid 1.5 API7119Wed May 06 22:41:08 BST 2009com.example.codelab.rssexample

MyRssReader2

public class MyRssReader2 extends android.app.Activity

Fields Summary
private ArrayList
mFeeds
android.widget.ListView
mRssList
private Logger
mLogger
Constructors Summary
Methods Summary
private java.util.ArrayListinitializeList()

        ArrayList<RssItem> list = new ArrayList<RssItem>();
        list.add(new RssItem("http://www.sciam.com/xml/sciam.xml", "Scientific American"));
        list.add(new RssItem("http://newsrss.bbc.co.uk/rss/newsonline_world_edition/front_page/rss.xml", "BBC"));
        list.add(new RssItem("http://www.theonion.com/content/feeds/daily.", "The Onion"));
        list.add(new RssItem("http://feeds.engadget.com/weblogsinc/engadget", "Engadget"));
        return list;
public voidonCreate(android.os.Bundle savedInstanceState)

    
    
       
        super.onCreate(savedInstanceState);

        // Load screen layout.
        setContentView(R.layout.main_screen2);
        
       // Populate our list
        mFeeds = initializeList();
        mLogger.info("MyRssReader.onCreate-1  mFeeds value:" + mFeeds.size());
// BEGIN_INCLUDE(2_2)       
        // Populate ArrayAdapter and bind it to ListView
        mRssList = (ListView)findViewById(R.id.rssListView);
        if(mRssList == null){
            // Note: Calling showAlert() would fail here because dialogs opened
            // in onCreate won't be displayed properly, if at all.
            mLogger.warning("MyRssReader.onCreate-2 -- Couldn't instantiate a ListView!");
        }
        RssDataAdapter<RssItem> adap = new RssDataAdapter<RssItem>(this, R.layout.add_item, mFeeds);
        if(adap == null){
            mLogger.warning("MyRssReader.onCreate-3 -- Couldn't instantiate RssDataAdapter!");
        }
        if(mFeeds == null){
            mLogger.warning("MyRssReader.onCreate-4 -- Couldn't instantiate a ListView!");
        }
        mRssList.setAdapter(adap);   
// END_INCLUDE(2_2)
       
        mLogger.info("MyRssReader.onCreate-5 -- Loading preferences.");
        // Set the last selected item.
        // (icicle is only set if this is being restarted).
        if(savedInstanceState != null && savedInstanceState.containsKey("lastIndexItem"))
        {
            Integer selectedItem = savedInstanceState.getInteger("lastIndexItem");
            if(selectedItem >= 0 && selectedItem < mRssList.getChildCount()){
                mRssList.setSelection(savedInstanceState.getInteger("lastIndexItem"));
            }
            mLogger.info("MyRssReader.onCreate-6 -- Last selected item:" + selectedItem);
        }
public booleanonCreateOptionsMenu(android.view.Menu menu)

        // Always call the superclass implementation to 
        // provide standard items.
        super.onCreateOptionsMenu(menu);
        
        menu.add(0, 0, "Start RSS Service", null);
        menu.add(0, 1, "Stop RSS Service", null);
        menu.add(0, 2, "Add New Feed", null);
        menu.add(0, 3, "Delete Feed", null);
        menu.add(0, 4, "Update All Feeds", null);
        
        return true;
public booleanonOptionsItemSelected(Menu.Item item)

        switch (item.getId()){
            case 0:
              showAlert(null, "You clicked 'start'!", "ok", null, false, null);
              break;
            case 1:
              showAlert(null, "You clicked stop!", "ok", null, false, null);
              break;
            case 2:
                showAlert(null, "You clicked 'Add'!", "ok", null, false, null);
                break;
            case 3:
                showAlert(null, "You clicked 'Delete'!", "ok", null, false, null);
                break;
            case 4:
                showAlert(null, "You clicked 'Update'!", "ok", null, false, null);
                break;
            default:
                showAlert(null, "I have no idea what you clicked!", "ok", null, false, null);
                break;
            }
        return true;
public booleanonPrepareOptionsMenu(android.view.Menu menu)

        return true;
protected voidonSaveInstanceState(android.os.Bundle outState)

        int index = mRssList.getSelectedItemIndex();
        if(index > -1){
            outState.putInteger("lastIndexItem", index);
        }