I have Auto-complete Box in Android, i am filling this Auto-complete Box with the names of Some list retrieved from the Server.
Suppose i Have ABC, XYZ, PQR, ABCC, ABCCD etc... Now on First Suggestion when i type AB: It should give me ABC, ABCC, ABCCD. Now i have selected ABC..
(Autocomplete in multivalue separated by ;)
NOw when i write ABC: It Again give ABC, ABCC, ABCCD..
Result i Want: on ABC select should be removed from the Autocomplete list. so Next suggestion should be ABCC, ABCCD only not ABC.
Please Help me out
Thanks in Advance..
Code from comment below:
myAutoComplete = (MultiAutoCompleteTextView) findViewById(R.id.talksender);
myAutoComplete.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
myAutoComplete.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, names));
You need to keep track of the selected items.
When creating the filtered list you need to filter by the string typed into the EditText AND by the items already selected.
For filtering your ArrayAdapter you need to:
Create a Filter implementaion which performs the filtering based on the EditText input AND the already selected items.
Override your ArrayAdapter's getFilter() method to return your custom Filter implementation
Related
final String[] defaulttask1 = {"abc"," def"," ghi"};
final AutoCompleteTextView autoCompleteTextView = (AutoCompleteTextView)this.findViewById(R.id.autoCompleteTextView);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1,defaulttask1);
autoCompleteTextView.setThreshold(0);
autoCompleteTextView.setAdapter(adapter);
I have a method using autoCompleteTextView.getText().toString().While the user types words which is not in the array, it may happen "null pointer exception"
Is there any solution that I can use autoCompleteTextView, that can search for user and let user enter text they want?
P.S. sorry, I'm not a native speaker, there might be some grammar mistake.
AutoCompleteTextView is right solution for your needs
An editable text view that shows completion suggestions automatically
while the user is typing. The list of suggestions is displayed in a
drop down menu from which the user can choose an item to replace the
content of the edit box with.
AutoCompleteTextView will allow user to type whatever he/she want but will give suggestions from array.
autoCompleteTextView.getText().toString()
will not return null in case of user types words which is not in the array. It will return whatever text is there right now in text view. It might crash if you do getText().toString() on a empty text view. So have a check before you convert textview to string
if(autoCompleteTextView.getText()!=null)
String textviewString = autoCompleteTextView.getText().toString()
I don't know how to do it so, can someone give me some working codes about automatically filtering results when I type a data from the search view and get it from the external database? Thanks!
Use textwatcher on edit text.Compare strings taken by textwatcher in afterTextChange method with your list items .Make new list with matched strings and set it in adapter.Use notifyDatasetChange method on adapter to refresh the list.
I have a listview with radio buttons now i need to add one value from a edittext after typing some thing in the edittext the typed text should appear in the listview as next row.? how it is posible.?
ListView with simpleArrayAdapter :
Follow these steps it may help:
1. Fetch the value from edit text after the user types using gettext()
2. Insert this value in an array.
3. create a list view.
4. create an arrayAdapter with the already created array as source.
5. Now set the adapter with listview using (array variable).setAdapter(adapter name);
For every time the user updates use notifyDataSetChanged() to refresh your listview with the new contents.
Pseudo code:
onClick(){
array.add(editText.gettext());
adapter.notifyDataSetChanged();
}
Click here for more.
I have been scouring the Internet for a way to use an input box at the top of the page, and have an add & remove button.
I want the EditText to write to the ListView, which in turn writes the list to a .txt-file.
I have tried breaking this down into multiple small sections of just simple things like
getting the input from the EditText to post to a TextView.
Organizing a ListView
writing to a file and
reading from a file.
If you have any advice about how to get the ListView to go from the EditText greatly helpful.
The best way to do this is to have an ArrayList<String> to store your Strings from the TextView, and in turn have that ArrayList<String> feed into the ListView. For example, for your Add button handler:
// Declare our variables
ArrayList<String> myStringList = new ArrayList<String>();
// OnClickListener stuff for Add button
..
myStringList.add(myEditText.getText().toString());
myListView.setListAdapter(new ArrayAdapter<String>(getBaseContext(), android.R.layout.simple_list_item_1, myStringList));
..
// Close OnClickListener stuff
Make sure you refresh your list adapter afterwards to show the new values. Likewise if you're deleting, use myStringList.remove(index) to remove that string from the list and refresh the array adapter. As for writing to a text file, have a look at this thread.
I created a list view which extends ListActivity and I have a search field at the top of the page
but I don't know how to write it , I want a search like search contact (type just only 1 char and listview will change, don't have to press any button)
please give me some example code
thanks
I think you should see this
If you are currently using a CursorAdapter to display the List, than you can create a custom CursorAdapter which does filtering automatically as you type keys. The following webpage provides an excellent example of this: http://thinkandroid.wordpress.com/2010/01/11/custom-cursoradapters/
Good luck!
Create a AutoCompleteTextView in your Layout,then put this in your class file,
AutoCompleteTextView txtPhoneNo = (AutoCompleteTextView) findViewById(R.id.txtPhoneNo);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line, name_Val);
txtPhoneNo.setAdapter(adapter);
where name_Val is the String Array that contains "DATA"