Hello everyone,
I have a 3 activity app. The third activity displays a ListView with a
custom Adapter. Data comes from a custom built List<T>. On the
activity, I have 3 ToggleButtons and one ListView. Each togglebutton
is supposed to change the content of the ListView.
I tried this differents ways (explained below), but the bug is always
the same : the list does not get updated UNLESS I tap the HOME button,
and then go back to the app. After doing this, my app is working fine,
and the content is changing.
Here's what I tried :
- using 3 ListViews with 3 instances of my custom adapter.
(the rest is with 1 ListView)
- having 3 instances of my custom adapter,
- having 1 instance of my custom adapter, changing the content, and
calling notifyDataSetChanged(),
- disabling the drawing caches (setDrawingCacheEnabled,
setScrollingCacheEnabled),
- calling invalidate(), requestLayout(), scrollTo() on the ListView...
- extending my custom adapter from BaseAdapter and from ArrayAdapter,
- extending my activity from ListActivity and using setListAdapter.
None of the above worked.
I must do something wrong, but what ?
Here is some code :
// my custom Adapter
public class GroupedValueAdapter extends BaseAdapter {
private Context mContext;
private List<GroupedValue> mItems;
public GroupedValueAdapter(Context context, List<GroupedValue> items)
{
mContext = context;
mItems = items;
}
public View getView(int position, View convertView, ViewGroup parent)
{
View row = convertView;
if (row == null) {
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.listitem, null);
}
TextView label = (TextView) row.findViewById(R.id.txtItemLabel);
GroupedValue group = (GroupedValue) this.getItem(position);
label.setText(group.value);
ImageView icon = (ImageView) row.findViewById(R.id.img1);
icon.setVisibility(group.onFirst ? View.VISIBLE : View.GONE);
icon = (ImageView) row.findViewById(R.id.img2);
icon.setVisibility(group.onSecond ? View.VISIBLE : View.GONE);
icon = (ImageView) row.findViewById(R.id.img3);
icon.setVisibility(group.onThree ? View.VISIBLE : View.GONE);
return row;
}
public int getCount() {
return mItems.size();
}
public void updateItems(List<GroupedValue> items) {
mItems = items;
notifyDataSetChanged();
}
public Object getItem(int position) {
return mItems.get(position);
}
public long getItemId(int position) {
return position;
}
}
In my activity :
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.viewpeoplegroup);
Intent intent = getIntent();
mGroup = (PeopleGroup) intent
.getSerializableExtra("com.digitrad.organip.PeopleGroup");
/* HEADER */
if (mGroup.photo.length() > 0) {
setPhoto();
}
TextView tv = (TextView) findViewById(R.id.txtPName);
tv.setText(mGroup.name);
tv = (TextView) findViewById(R.id.txtPLocation);
tv.setText(mGroup.location);
Button btn = (Button) findViewById(R.id.btnCall);
btn.setOnClickListener(mFakeTabClickListener);
btn = (Button) findViewById(R.id.btnInvite);
btn.setOnClickListener(mFakeTabClickListener);
btn = (Button) findViewById(R.id.btnVoicemail);
btn.setOnClickListener(mFakeTabClickListener);
/* LIST */
mList = getListView();
// mList.setAdapter(new GroupedValueAdapter(this,
mGroup.numbers));
setListAdapter(new GroupedValueAdapter(this, mGroup.numbers));
mList.setDrawingCacheEnabled(false);
mList.setScrollingCacheEnabled(false);
if (mGroup.canInvite) {
showList("INVITE");
} else if (mGroup.canEmail && mGroup.canCall == false) {
showList("VOICEMAIL");
} else {
showList("CALL");
}
}
private void showList(String s) {
GroupedValueAdapter adapter = (GroupedValueAdapter)
mList.getAdapter
();
if (s == "CALL") {
mList.setOnItemClickListener(mCallClickListener);
adapter.updateItems(mGroup.numbers);
} else if (s == "VOICEMAIL") {
mList.setOnItemClickListener(mEmailClickListener);
adapter.updateItems(mGroup.emails);
} else if (s == "INVITE") {
mList.setOnItemClickListener(mInviteClickListener);
adapter.updateItems(mGroup.invites);
}
mList.invalidate();
mList.requestLayout();
mList.scrollTo(0, 0);
}
Let me remind you that everything works perfectly after going to HOME,
and then going back to the activity. Until I do this, the ListView
does not get updated.
Help would be appreciated,
Regards,
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
-~----------~----~----~----~------~----~------~--~---
