Well, I never figured it out, but while I was waiting I ended up doing
it in a cleaner way and got around my issues.
How long until I'm no longer a moderated noob???
On Dec 10, 12:04 pm, filbert <filbert...@gmail.com> wrote:
> I'm trying to customize the sample notepad app. I want to add items
> automatically from another source (an array, a web service, whatever,
> it's hard coded right now) instead of having the user enter them.
> After the item is added to the db (via the menu), I want the item
> details to be displayed.
>
> Right now, the item is successfully added to the list, but I just get
> a blank screen. If I hit back, the item appears in the list and if I
> click on the item in the list, I can see the details without a
> problem.
>
> The code for displaying the details after adding a new item is nearly
> identical to just displaying the details alone (except for the method
> to actually add it to the database). Both are using the same layout
> XML (maybe that's a problem?) so I'm not sure where the breakdown is.
> Maybe I'm missing some understanding of the XML UI...
>
> The only thing I can tell that is really different is that the rowId
> is automatically added to the Intent extras when clicking on the list
> item, but not when choosing to add a new item from the menu (since the
> rowId isn't known yet). I tried adding the rowId into the Intent
> extras, but that doesn't seem to make a difference.
>
> I tried forwarding to the View activity after adding to the DB, which
> worked, but then I had issues with the back button and figured I'd go
> with this simpler (though redundant) strategy until I can figure out
> what I'm doing wrong.
>
> Any thoughts?
>
> Here is the relevant calling code from the main class:. It should
> look a lot like the tutorial...
> --------------------------------------------------------------------------------------------
> @Override
> public boolean onMenuItemSelected(int featureId, MenuItem item) {
> switch(item.getItemId()) {
> case REFRESH_ID:
> refreshVerse();
> return true;
> }
>
> return super.onMenuItemSelected(featureId, item);
> }
>
> private void refreshVerse() {
> Intent i = new Intent(this, VerseRefresh.class);
> startActivityForResult(i, ACTIVITY_REFRESH);
> }
>
> @Override
> protected void onListItemClick(ListView l, View v, int position,
> long id) {
> super.onListItemClick(l, v, position, id);
> Intent i = new Intent(this, VerseView.class);
> i.putExtra(VerseDbAdapter.KEY_ROWID, id);
> startActivityForResult(i, ACTIVITY_VIEW);
> }
>
> --------------------------------------------------------------------------------------------
> And here is my Add item class (which I call refresh):
> --------------------------------------------------------------------------------------------
> public class VerseRefresh extends Activity {
>
> private VerseDbAdapter mDbHelper;
> private Long mRowId;
> private TextView mVerseDate;
> private TextView mVerseNumber;
> private TextView mVerseText;
>
> @Override
> protected void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
>
> mDbHelper = new VerseDbAdapter(this);
> mDbHelper.open();
>
> setContentView(R.layout.verse_details);
>
> mVerseDate = (TextView) findViewById(R.id.verseDate);
> mVerseNumber = (TextView) findViewById(R.id.verseNumber);
> mVerseText = (TextView) findViewById(R.id.verseText);
>
> // since this is a new row, there will not be any id in the
> savedInstanceState.
> //mRowId = savedInstanceState != null ?
> savedInstanceState.getLong
> (VerseDbAdapter.KEY_ROWID) : null;
> //if (mRowId == null) {
> // Bundle extras = getIntent().getExtras();
> // mRowId = extras != null ? extras.getLong
> (VerseDbAdapter.KEY_ROWID) : null;
> //}
> getVerse();
>
> Intent i = getIntent();
> i.putExtra(VerseDbAdapter.KEY_ROWID, mRowId);
>
> populateFields();
>
> }
>
> @Override
> protected void onPause() {
> super.onPause();
> // not needed
> //saveState();
> }
>
> @Override
> protected void onResume() {
> super.onResume();
> populateFields();
> }
>
> @Override
> protected void onSaveInstanceState(Bundle outState) {
> super.onSaveInstanceState(outState);
> outState.putLong(VerseDbAdapter.KEY_ROWID, mRowId);
> }
>
> private void populateFields() {
> if (mRowId != null) {
> Cursor note = mDbHelper.fetchVerse(mRowId);
> startManagingCursor(note);
>
> mVerseDate.setText(note.getString(note.getColumnIndexOrThrow
> (VerseDbAdapter.KEY_VERSE_DATE)));
>
> mVerseNumber.setText(note.getString(note.getColumnIndexOrThrow
> (VerseDbAdapter.KEY_VERSE_NUMBER)));
>
> mVerseText.setText(note.getString(note.getColumnIndexOrThrow
> (VerseDbAdapter.KEY_VERSE_TEXT)));
> }
> }
>
> private void getVerse() {
> System.out.println("NEED TO CALL WEB SERVICE TO GET VALUES");
> // TODO call web service
> String verseDate = "12/10/2008";
> String verseNumber = "123";
> String verseText = "Test text 1";
>
> mVerseDate = new TextView(this);
> mVerseNumber = new TextView(this);
> mVerseText = new TextView(this);
> mVerseDate.setText(verseDate);
> mVerseNumber.setText(verseNumber);
> mVerseText.setText(verseText);
>
> if (mRowId == null) {
> long id = mDbHelper.createVerse(verseDate,
> verseNumber, verseText);
> if (id > 0) {
> mRowId = id;
> }
> }
> else {
> System.out.println("NO ID. THIS SHOULDN'T HAPPEN
> UNLESS THERE IS A
> DB ERROR");
> // TODO don't need this anymore?
> //mDbHelper.updateVerse(mRowId, verseDate,
> verseNumber);
> }
>
> }
>
> }
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