MyRssReader5public class MyRssReader5 extends android.app.Activity implements android.widget.AdapterView.OnItemSelectedListener
| Fields Summary |
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| private android.widget.ListView | mRssList | | private android.database.Cursor | mCur | | private RssCursorAdapter | mAdap | | private android.webkit.WebView | mWebView | | private static final int | ADD_ELEMENT_REQUEST | | private Logger | mLogger |
| Methods Summary |
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| protected void | onActivityResult(int requestCode, int resultCode, android.content.Intent data)
if(resultCode == RESULT_OK){
switch (requestCode){
case ADD_ELEMENT_REQUEST:
ContentValues vals = new ContentValues(5);
vals.put(RssContentProvider.TITLE, data.getStringExtra(RssContentProvider.TITLE));
vals.put(RssContentProvider.URL, data.getStringExtra(RssContentProvider.URL));
vals.put(RssContentProvider.CONTENT, data.getStringExtra(RssContentProvider.CONTENT));
vals.put(RssContentProvider.LAST_UPDATED, data.getIntExtra(RssContentProvider.LAST_UPDATED, 0));
Uri uri = getContentResolver().insert(
RssContentProvider.CONTENT_URI,
vals);
if(uri != null){
// Tell the service to requery the service, then set
// it as the active selection.
Bundle startupVals = new Bundle(1);
startupVals.putString(RssService.RSS_URL, data.getStringExtra("URL"));
Intent startIntent = new Intent(RssService.class);
startIntent.putExtras(startupVals);
startService(startIntent);
mRssList.setSelection(mRssList.getCount() - 1);
}
break;
default:
break;
}
}
| | public void | onCreate(android.os.Bundle savedInstanceState)
super.onCreate(savedInstanceState);
//
// Load screen layout.
setContentView(R.layout.main_screen2);
// Populate ArrayAdapter and bind it to ListView
mRssList = (ListView)findViewById(R.id.rssListView);
mRssList.setOnItemSelectedListener(this);
mWebView = (WebView)findViewById(R.id.rssWebView);
mCur = managedQuery(RssContentProvider.CONTENT_URI, // Query for all items.
null,
null,
RssContentProvider.DEFAULT_SORT_ORDER);
mAdap = new RssCursorAdapter(
this,
R.layout.list_element, // Our layout resource.
mCur,
new String[]{RssContentProvider.TITLE}, // Columns to retrieve.
new int[]{R.id.list_item}); // IDs of widgets to display
mRssList.setAdapter(mAdap); // the corresponding column.
// Set the last selected item.
// (icicle is only set if this is being restarted).
if(savedInstanceState != null && savedInstanceState.containsKey("lastIndexItem")){
mRssList.setSelection(savedInstanceState.getInteger("lastIndexItem"));
}
| | public boolean | onCreateOptionsMenu(android.view.Menu menu)
// Always call the superclass implementation to
// provide standard items.
super.onCreateOptionsMenu(menu);
menu.add(0, 0, R.string.menu_option_start, null);
menu.add(0, 1, R.string.menu_option_stop, null);
menu.add(0, 2, R.string.menu_option_add, null);
menu.add(0, 3, R.string.menu_option_delete, null);
menu.add(0, 4, R.string.menu_option_update, null);
return true;
| | public void | onItemSelected(android.widget.AdapterView parent, android.view.View v, int position, long id)
// Need to nest this in a try block because we get called sometimes
// with the index of a recently deleted item.
String content = "";
try{
content = mCur.getString(mCur.getColumnIndex(RssContentProvider.CONTENT));
mLogger.info("MyRssReader5 content string:" + content);
}
catch (Exception e){
// This method is sometimes called after a backing data item
// is deleted. In that case, we don't want to throw an error.
mLogger.warning("MyRssReader5.onItemSelected() couldn't get the content" +
"from the cursor " + e.getMessage());
}
mWebView.loadData(content, "text/html", "utf-8");
| | public void | onNothingSelected(android.widget.AdapterView parent)
mWebView.loadData("<html><body><p>No selection chosen</p></body></html>", "text/html", "utf-8");
| | public boolean | onOptionsItemSelected(Menu.Item item)
super.onOptionsItemSelected(item);
switch (item.getId()){
case 0: // Start service
Intent basicStartIntent = new Intent(RssService.class);
startService(basicStartIntent);
break;
case 1: // Stop service
Intent stopIntent = new Intent(RssService.class);
stopService(stopIntent);
break;
case 2: // Add Item
Intent addIntent = new Intent(AddRssItem.class);
// Use an ID so that if we create a "remove item" form we
// can tell which form is returning a value.
startActivityForResult(addIntent, ADD_ELEMENT_REQUEST);
break;
case 3: // Delete item.
if(mRssList.hasFocus()){
int currentSelectionIndex = mRssList.getSelectedItemIndex();
mLogger.info("MyRssReader5.onOptionsItemSelected(): Deleting list member:" +
mRssList.getSelectedItemIndex());
// Create our content URI by adding the ID of the currently selected item using a
// convenience method.
Long itemID = mAdap.getItemId(currentSelectionIndex);
getContentResolver().delete(RssContentProvider.CONTENT_URI.addId(itemID), null);
}
break;
case 4: // Requery all
Bundle startupVals = new Bundle(1);
startupVals.putBoolean(RssService.REQUERY_KEY, true);
Intent requeryIntent = new Intent(RssService.class);
startService(requeryIntent, startupVals);
break;
default:
showAlert(null, "I have no idea what you clicked!", "ok", null, false, null);
break;
}
return true;
| | public boolean | onPrepareOptionsMenu(android.view.Menu menu)
return true;
| | protected void | onSaveInstanceState(android.os.Bundle outState)
int index = mRssList.getSelectedItemIndex();
if(index > -1){
outState.putInteger("lastIndexItem", index);
}
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