How to get text from AutoCompleteTextView?
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26-10-2019 - |
سؤال
I have an AutoCompleteTextView
in my app which works. I have successfully created an onClickItemListener
. The question is how to grab the text the user selected.
And this is the thing: I have an ArrayList
with words being passed to the Adapter
to search for suggestions. As the user types a word the suggestions list gets shorter (in rows on the UI side) so when i want to get the word from the ArrayList
at the index the user selected i get the wrong word because the indexes doesn't match.
How can I get the text (String
) the user chose without having to mess with the index?
Here's my code:
public class AutocompleteActivity extends BaseActivity {
private DBManager m_db;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.autocomplete);
m_db = new DBManager(this);
final ArrayList<String> words = m_db.selectAllWords();
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.listitem, words);
AutoCompleteTextView tv = (AutoCompleteTextView)findViewById(R.id.autocomplete);
tv.setThreshold(1);
tv.setAdapter(adapter);
tv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
Log.i("SELECTED TEXT WAS------->", words.get(arg2));
}
});
}
}
المحلول
arg0
being your AdapterView
and arg2
the position.
Have you tried:
arg0.getItemAtPosition(arg2);
نصائح أخرى
Yeah... unfortunately the name of the parameters on the onItemClick method you must implement are not so self-descriptive but here is an example with the names of what they are:
autoCompleteTextView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long rowId) {
String selection = (String)parent.getItemAtPosition(position);
//TODO Do something with the selected text
}
});
- parent The AdapterView where the click happened.
- view The view within the AdapterView that was clicked (this will be a view provided by the adapter)
- position The position of the view in the adapter
- id The row id of the item that was clicked.
For more info see: http://developer.android.com/reference/android/widget/AdapterView.OnItemClickListener.html
I think what you are looking for is this.
String s = this.mCountry.getEditableText().toString();
Where mCountry
is the AutoCompleteTextView
.
this.mCountry = (AutoCompleteTextView) findViewById(R.id.autocomplete_country);
ArrayAdapter<String> adapterCountry = new ArrayAdapter<String>(this, R.layout.list_item, countries);
this.mCountry.setAdapter(adapterCountry);
mCountry
is the list of countries, and I wanted to save the country selected in SharedPreferences
.
Hope this helps.
Easiest of all
For Getting text of the selected suggestion in AutoCompleteTextView use this
autoCompleteTextView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.e("========>>", autoCompleteTextView.getText().toString());
}
});
try this:
txtPurpose.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Purpose selected = (Purpose) arg0.getAdapter().getItem(arg2);
txtPurpose.setTag(selected);
}
});
One another of getting text of suggestion selected in AutoCompleteTextView
is
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id)
{
TextView txtvw=(TextView) view;
String str=txtvw.getText().toString();
int index = contactNames.indexOf(str);
}
Here is the code that will solve the problem.
private AdapterView.OnItemClickListener onItemClickListener = new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {
int index = (int) view.getTag();
Object item = parent.getItemAtPosition(index);
if (item instanceof SearchItemShareConnectionDAO) {
SearchItemShareConnectionDAO dao = (SearchItemShareConnectionDAO) item;
}
}
};
SetTag(Dao.getPosition) in getView() method of adapter.
To get the text of the displayed item selected by the user
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
String selectedItemText = arg0.getItemAtPosition(arg2);
Log.i("myTag", "SELECTED TEXT WAS["+selectedItemText+"]);
}
Following best practices, please use some form of descriptive nomenclature for your variables, your code will make more sense:
public void onItemClick(AdapterView<?> adapterViewIn, View viewIn, int selectedItemIndexIn, long id)
There is also a way to get item outside the onItemClick
:
int index = tv.getListSelection();
if (index != ListView.INVALID_POSITION) {
Object item = tv.getAdapter().getItem(index);
}
beware that int getListSelection()
may return ListView.INVALID_POSITION
if there is no dropdown or if there is no selection.