Develop Reference

In Listview onItemClick() listener is not working?

I have added an onItemClick() listener to a listview. The listener is not working.
Here is the code I am working with:`
MyBaseAdapter ma= new MyBaseAdapter(context, myList);
lvDetail.setAdapter(ma);
lvDetail.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
ListData ld= myList.get(arg2);
String des=ld.getDescription();
Toast.makeText(context,"description"+des, Toast.LENGTH_LONG).show();
}
});

Since you are using custom adapter, please write listener inside getView of adapter on item of list and perform operation.

List View in android not visible

I'm facing problem with list view, I wrote following code for list view but when i run that code, list view not visible, the code is as follows:
l1=(ListView)findViewById(R.id.listView1);
String[] a1=new String[]{"abc", "bcd","cde","def"};
ArrayAdapter<String>adapter=new ArrayAdapter<String>(this, android.R.layout.simple_gallery_item, a1);
l1.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), ((TextView)arg1).getText(), Toast.LENGTH_LONG).show();
}
});

Here you are missing to set Adapter to listview. Update your code to below code.
l1=(ListView)findViewById(R.id.listView1);
String[] a1=new String[]{"abc", "bcd","cde","def"};
ArrayAdapter<String>adapter=new ArrayAdapter<String>(this, android.R.layout.simple_gallery_item, a1);
l1.setAdapter(adapter);
l1.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), ((TextView)arg1).getText(), Toast.LENGTH_LONG).show();
}
});

set listadapter first.
l1.setAdapter(ArrayAdapteradapter);

Is your layout properly written? Means ListView visibility.

Your listview doesn't get visible because you have not set the data in your listview using adapter.
set the adapter in your listview as below:
ArrayAdapter<String>adapter=new ArrayAdapter<String>(this, android.R.layout.simple_gallery_item, a1);
l1.setAdapter(adapter);

Adding an event listener to listView

getSherlockActivity().findViewById(android.R.id.list);
new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
// TODO Auto-generated method stub
Toast.makeText(getSherlockActivity(),
"You selected :", Toast.LENGTH_SHORT).show();
}
};
I am trying to add an event listener to my activity, but the toast message is not shown at all. I am calling this piece of code from onCreateView method

It doesn't seem like you are actually setting the click listener on your list, you are just creating it, and not even keeping a reference to it.
try like this:
ListView lv = (ListView)(getSherlockActivity().findViewById(android.R.id.list));
lv.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
// TODO Auto-generated method stub
Toast.makeText(getSherlockActivity(),
"You selected :", Toast.LENGTH_SHORT).show();
}
});

getSherlockActivity().findViewById(android.R.id.list).setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
// TODO Auto-generated method stub
Toast.makeText(getSherlockActivity(),
"You selected :", Toast.LENGTH_SHORT).show();
}});
EDITED
((ListView)getSherlockActivity()).findViewById(android.R.id.list).setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
// TODO Auto-generated method stub
Toast.makeText(getSherlockActivity(),
"You selected :", Toast.LENGTH_SHORT).show();
}});
Add this line inside onCreate().

I do not see you adding anything. All you did was findViewById() for no purpose (as you did not used return value. Also you just created new OnItemClickListener for no reason as you do not use it either. And no, putting two lines of code next to each other won't make then automagically interact in any way...
Right approach is:
ListView v = (ListView)getSherlockActivity().findViewById(android.R.id.list);
v.setOnItemClickListener( new OnItemClickListener() {
...
...

Couple of weeks ago, I found same situation. I didn't use Sherlock but, it may help to set following line.
listView.setItemsCanFocus(false);
Also make sure to set clickable false to any Button in your row item.

Only add
ListView lv = (ListView)getSherlockActivity().findViewById(android.R.id.list);
lv.setOnItemClickListener(this);
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
}
and Activity should implement OnItemClickListener
or
ListView lv = (ListView)getSherlockActivity().findViewById(android.R.id.list);
lv.setOnItemClickListener( new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
}

listener on listview in android

ListView lv=(ListView) findViewById(android.R.id.list);
lv.setOnItemLongClickListener(new OnItemLongClickListener()//error:change to <listeners>
{
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,int row, long arg3) {
//here is where i got the classCastException.
String[] tmp = (String[]) arg0.getItemAtPosition(row);
//tmp[0] ist the Text of the first TextView displayed by the clicked ListItem
Toast.makeText(ReminderListActivity.this, tmp[0].toString(), Toast.LENGTH_SHORT).show();
return true;
}
});

change to lv.setOnItemClickListener

You need to fix your imports.
you probably import the wrong class and now eclipse thinks you want something else.

You should use below listener:
m_listView.setOnItemClickListener(new OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> p_arg0, View p_arg1, int p_arg2, long p_arg3)
{
// TODO Auto-generated method stub
}
});

Check selected item of ListView

I have a ListView and need to check, which item has been clicked.
The way I have it, it only shows my the selected item when I use the scrollwheel of my mouse (when testing it in the Eclipse emulator). When I test it on a real mobile device, it doesn't react at all.
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, listItems);
listView.setAdapter(adapter);
listView.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
myFunction(listView.getSelectedItem());
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});

Use setOnItemClickListener instead of setOnItemSelectedListener
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
//get value for listItems using position
String str =listItems[position];
myFunction(str);
}
});

I think better you need to use on onListItemClick listener
public void onListItemClick(ListView parent, View v, int position, long id)
{
parent.setItemChecked(position, parent.isItemChecked(position));
Toast.makeText(this, "You have selected" + items[position],30).show();
}