Develop Reference

SwipeMenuListView new Row added is showing First time data

I've read many of the previous posts on this topic, but i'm not getting it right.
I have an adapter which has a private values of the items in the list.
When i update the values(add a new items), i watch the value in debugger and the "getView" func and see that the value is correct.
BUT the actual rowView i see is just the first item in the list.
I have no clue what may cause this.
This listview is on the same activity while i show a different layout and hide the listview to add a new item.
Can there be a connection while the listview visibility is "GONE"?
When i remove items from it it updates listview fine(that is done when listview is visible).
private void updateAdapter() {
this.values.clear();
this.values.addAll(staticlistIndifferentclass);
notifyDataSetChanged();
}
~~~~UPDATE~~~~
Ok,
So i discovered the cause of the problem, though i'm not sure why it is.
The code was fine the way it was with regular Listview but the bug is on:
com.baoyz.swipemenulistview.SwipeMenuListView

Try use ListView.invalidateViews
This should cause views rebuilding

Use new Adapter object like this :
listView.setAdapter(new yourCustomAdapter());
When you delete all dataSet items ,it is better to bind new Adapter object .

Spinner not showing selected item

PROBLEM
My problem is that after changing data in my SpinnerArrayAdapter my Spinner does not react to item clicks on dropDownList.
However after orientation change occurs everything is working fine(?!).
EDIT: I noticed it does catch the item clicks but not representing/showing it on Spinner. Because after orientation change the selected item appears on Spinner
CONSTRUCTION
I have AutoCompleteTextView(ACTV) that's connected to AutoCompleteAdapter implementing Filterable. After entering some data into ACTV the result is passed to SpinnerArrayAdapter that is connected to Spinner.
There is a customListener set on AutoCompleteAdapter that is connected to SpinnerArrayAdapter and responsible for passing data between them.
Reason behind such construction is that user can have a 2-step choice. One on drop-down when choosing the data from ACTV and second one in case he change his mind.
So you can put POSTCODE in the ACTV select province that's connected to and change province when you miss-clicked/changed mind without forcing to enter POSTCODE again.
CODE
This is the part that is responsible for data change inside SpinnerArrayAdapter.
#Override
public void setCitiesFromPostcode(ArrayList<String> cities) {
this.clear();
this.addAll(cities);
notifyDataSetChanged();
}

I had a similar problem with ArrayAdapter. I just changed it to BaseAdapter and it works. Don't really know what the reason is, but it's somewhere in the implementation of ArrayAdapter.

Two common causes for this:
Event though it may look big enough, if your Spinner is too small it may not be able to display the value, confirm this by hardcoding the Spinner width and height to something large. Using a custom spinner item layout may help if this is the problem.
You're using custom objects in your array, not simple Strings or numbers that can be converted to strings. Use a custom class MyAdapter extends BaseAdapter implements SpinnerAdapter { } class in this case.

Is there a way to get notified when a spinner is activated?

I wish I had a notification when a spinner is activated and the dropdown list is displayed, but I cannot find one. When it is displayed for the first time, I want to change an entry in the list. I am using an ArrayAdapter with the spinner. Thank you.

I dunno if i understand you right.
But just set a flag, like this:
boolean isTriggeredBefore = false;
And if that is false just use another values for that arrayadapter for e.g
if(isTriggeredBefore)
ArrayAdapter(this, R.array.list, R.id.tv);
else
ArrayAdapter(this, R.array.listFirstTime, R.id.tv);
Hope that helps!

Setting tags to each item in a ListView in Android?

I have a ListView where I want each item to have an ID number attached to it (not the same as the position number). I was hoping this could be done by setting a tag to each View item in the ListView using setTag() when these Views are being created.
Right now I'm creating the ListView like this:
final ListView listview = (ListView) findViewById(R.id.listView1);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, android.R.id.text1, names);
listview.setAdapter(adapter);
The names variable in the ArrayAdapter parameters above is an ArrayList, and each string value in this list also has a unique ID that I want to link to this string somehow.
Is there any way I can get access to and modify each of the Views with a tag? One idea was to create my own extended class of ArrayAdapter and override the getView() method, but I don't really understand how it works and how I would go about doing this.
Or is there a better way to link IDs with each string like this than adding tags like I'm trying to do?

Create a ViewBinder and set the tags as the ListView is being populated with whatever you need. You can check all properties of the view to determine what tag goes where, so this should be what you're looking for.
myAdapter.setViewBinder(new MyViewBinder());
public class MyViewBinder implements ViewBinder {
#Override
public boolean setViewValue(View view, Object data, String text){
//Since it iterates through all the views of the item, change accordingly
if(view instanceof TextView){
((TextView)view).setTag("whatever you want");
}
}
}
I just used this exact same answer on another question (albeit slightly different) yesterday.

about getView , it works by using a method of recycling views. i will try to explain it in a simple way.
suppose you have tons of items that can be viewed . you don't want to really create tons of views too , since that would take a lot of memory . google thought of it and provide you the means to update only the views that need to be shown at any specific time.
so , if there is an empty space on the listview , it will be filled with a new view . if the user scrolls , the view that becomes hidden is recycled and given back to you on the getView , to be updated with the data of the one that is shown instead .
for example , if you scroll down , the upper view becomes hidden for the end user , but in fact it becomes the exact same view that is on the bottom .
in order to understand how to make the listview have the best performance and see in practice how and why it works as i've talked about , watch this video:
http://www.youtube.com/watch?v=wDBM6wVEO70
as for tags , i think you want to do something else , since the data itself (usually some sort of collection, like an arrayList) already knows where to update , because you get the position via the getView . if you want a specific view to update , you might be able to do so by using a hashmap that keeps upadting , which its key is the position in the collection , and the value is the associated view . on each time you go to getView , you need to remove the entry that belong to the view (if exists) and assign the new position with the view that you got/created .

Thanks for the answers. thisMayhem's answer would probably have been easier in the end, but on my quest to learn more I ended up making my own adapter according to this tutorial. I pass down the names and the IDs into the adapter and set the names as the text of the TextViews and the IDs as the tags.

I would rather go with the solution discussed in this thread. It is always the easiest to have all related data in same place and in this case you just create a class to hold all the information you will need for every item.

How to remove the filter on an ArrayAdapter used in an AutoCompleteTextView?

As the title, how can I remove the filtering on an ArrayAdapter used by an AutoCompleteTextView to get the original list back?
A little more background:
It all started from the sad fact that the "position" value passed in to onItemClick() is useless. The "position" refers to the position AFTER the array has been filtered, but I need to know its REAL position. So, what I'm trying to do is when I've got the text of the selected item (by using getItemAtPosition(position)), I compare it one-by-one with the original string array that backs the ArrayAdapter. However, I found that when onItemClick() is called, the adapter is already filtered, I no longer have access to the original array. So I thought if I can remove the filter, maybe I can get back the original array and look for the selected item in it.
ArrayAdapter<String> mAdapter;
public void onCreate() {
// Create an adapter and remembere it as a class member.
mAdapter = new ArrayAdapter<String>(this, layoutId);
// Add 100 strings to it and attach it to an AutoCompleteTextView
for (int i = 0; i < 100; i++)
mAdapter.add("random text");
((AutoCompleteTextView)findViewById(id)).setAdapter(mAdapter);
}
#Override
public void onItemClick(AdapterView<?> actv, View view, int position, long id) {
if (actv.getAdapter().equals(mAdapter))
Log.d("The adapter contained in actv is the same one I created earlier.");
// And, I can get the text of the item the user selected
String selected = (String)actv.getItemAtPosition(position);
// However, although the adapter passed in is still the same one, but the
// number of items in it is only 1! Because the array has been filtered.
int numItems = actv.getAdapter.getCount();
// So, I'm thinking if I can somehow remove the filtering here, then I can
// get back those 100 items, and do a search like following:
for (int i = 0; i < actv.getAdapter.getCount(); i++)
if (selected == actv.getAdapter.getItem(i))
break; // Eureka!!!
}
To tackle the problem of obtaining the REAL position of the selected item:
Is there a way to utilize the "id" value? Like, assign each item an id, then hopefully onItemClick() would pass back the correct id.
Like I said above, remove the filter (is it possible), get back the original 100 items, and perform a one-by-one search.
This is the last resort, I know it'll work, but I don't want to do it: Once I get the text of the selected text, I go back to the source of the data (from a database), query those 100 items out, and perform the search.
Another lame last resort: To avoid the overhead on accessing the database again as in #3, when in onCreate(), while creating the ArrayAdapter, I use an ArrayList of my own to remember all those 100 strings.
Am I doing it all wrong? What's the "right" way of obtaining the real position of the selected item from an AutoCompleteTextView?
Thank you very much!
(I read somewhere, some buy that seemed to be from Google Android team, said that one should use getFirstVisiblePosition() to resolve the position. But I can't figure out how.)

I don't know if you're still interested, but I found this answering a similar question: Problem with AutoCompleteTextView and Spinner using the same Adapter
Copying the method in the AutoCompleteTextView source code:
Filter filter = mAdapter.getFilter();
filter = null;
See my response in the above question for the grepcode link.

This is actually pretty simple to solve.. Instead of adding each element to the adapter as you get it (I'm assuming your random text part is just for example purposes), instead use the following:
First build your array into a variable, call it myArray..
then initialize your adapter like this:
mAdapter = new ArrayAdapter<String>(this, layoutId, myArray);
Now make sure that myArray is a class variable so you can reference it from anywhere else in the class.. Of course if you need access to this from another class you'd want to make a getter for it... Then you can easily iterate over the array to see if the value selected is in the array.. You'll have the whole set of data there instead of trying to get it from the adapter.
Here is a good example on using a validator for a similar looking use case:
Android, Autocomplettextview, force text to be from the entry list

In my case, I have address that can be set either by autocomplete or clicking on the map. If user click on the map, editText text should be set to address selected from the map, and in that case filtering should be disable temporarily.
I code like this:
public void OnAddressFound(String address) {
// Temporary disable autocomplete
editTextSearch.setAdapter(null);
editTextSearch.setText(address);
// Enable autocomplete again
setAutoCompleteAdapter();
}
where setAutoCompleteAdapter() is called during onCreate, and again in temporary disable/enable filter:
void setAutoCompleteAdapter() {
PlacesAutoCompleteAdapter adapter = new PlacesAutoCompleteAdapter(this, R.layout.item_autocomplete_map_search, autoCompleteList);
editTextSearch.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
Hope its help you also.

I found the solution, kinnda tricky but its works
after i looking inside of the source, i found that th treshold variable used as filtering validation, here we just need to set the treshold to maximum int so filtering never perform.
threshold = Integer.MAX_VALUE
or
setThreshold(Integer.MAX_VALUE)