Inflating a view stub has two important properties:
1) It's irreversible: once inflated, the stub's content is always there
2) The stub's content replaces the stub.
Sounds like you need to replace the stub with <include> and toggle its
contents' visibility as needed.
-- Kostya
05.11.2011 2:07, Abhi пишет:
I keep getting NullPointerException trying to deflate or make
invisible the ViewStub from my UI. I just wanted to be sure I am doing
it right.
I am inflating my ViewStub in onItemLongClick method of GalleryView by
doing the following:
@Override
public boolean onItemLongClick(AdapterView<?> arg0, View
viu, int arg2,
long arg3) {
Toast.makeText(GalleryView.this, "New item added to
Favorites", Toast.LENGTH_SHORT).show();
favsCount++;
//checking to see if ViewStub is already inflated or
not
if(!stubvis){
stub = (ViewStub) findViewById(R.id.stub1);
stub.inflate();
stubvis = true;
trayUP = true;
}
return true;
}
});
and then in onPrepareOptionsMenu() I am adding the menu item based on
the visibility of ViewStub. If inflated and visible, I create a menu
item to hide it, otherwise, a menu item to show/make visible.
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
menu.clear();
if(trayUP) {
menu.add(0, HIDETRAY, 0, "Hide Favorites Tray");
} else {
menu.add(0, SHOWTRAY, 0, "Show Favorites Tray");
}
return super.onPrepareOptionsMenu(menu);
}
Next, in onOptionsItemSelected(), I am writing the two cases based on
the menu item selection. Case 1 when the tray is not visible, so I
make it visible. Case 2 when it is visible, so I hide it by doing the
following:
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case HIDETRAY:
Log.v(TAG, "Hiding Favs Tray");
findViewById(R.id.stub1).setVisibility(View.GONE);
trayUP = false;
case SHOWTRAY:
Log.v(TAG, "Showing Favs Tray");
findViewById(R.id.stub1).setVisibility(View.VISIBLE);
trayUP = true;
}
return true;
}
I know I am making a silly mistake somewhere. And my mind is too
saturated to think straight at the moment. Need help :(
Thanks,
Ab
--
Kostya Vasilyev
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