Android listview how to scroll selected item to the top

Question

I am trying to create a ListView in Android. When I click on an item, I want it to scroll it over to the top. How can I do that? Here is the Activity class that I am trying out, item selections works fine but it does not scroll over to the top

public class MyListActivity extends ListActivity {
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        String[] values = new String[] { "Android", "iPhone", "WindowsMobile",
        "Blackberry", "WebOS", "Ubuntu", "Windows7", "Max OS X",
        "Linux", "OS/2" };
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
            android.R.layout.simple_list_item_1, values);
        setListAdapter(adapter);
    }

    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        String item = (String) getListAdapter().getItem(position);
        //l.setSelection(2);

        Toast.makeText(this, position + " selected", Toast.LENGTH_LONG).show();
        //l.smoothScrollToPosition(5);

    }
}

see my answer here, http://stackoverflow.com/a/29345217/1881527 — Melbourne Lopes, Apr 01 '15 at 09:50

score 12 · Answer 1 · answered Jul 03 '15 at 01:37

12

Use this. Will scroll the item in position smoothly to the top of the listview.

int duration = 500;  //miliseconds
int offset = 0;      //fromListTop

listview.smoothScrollToPositionFromTop(position,offset,duration);

descrease duration to make scrolling faster

answered Jul 03 '15 at 01:37

Adam

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1
8
20

thanks @MohsenBahmanpoor. is quite simple i can say and worked perfectly – Adam Sep 18 '15 at 00:28

score 1 · Answer 2 · edited Nov 15 '14 at 04:15

1

Try to use this method setSelection (int position).

Sets the currently selected item. To support accessibility subclasses that override this method must invoke the overridden super method first.

edited Nov 15 '14 at 04:15

Piyush

24,288
6
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72

answered Nov 15 '14 at 04:13

score 1 · Answer 3 · edited May 23 '17 at 12:00

1

According to this https://stackoverflow.com/a/18133295/3225458, you should try to post smooth scrolling:

@Override
protected void onListItemClick(final ListView l, View v, int position, long id) {
    String item = (String) getListAdapter().getItem(position);
    l.post(new Runnable() {
        @Override
        public void run() {
            l.smoothScrollToPosition(pos);
        }
    });
    Toast.makeText(this, position + " selected", Toast.LENGTH_LONG).show();
}

edited May 23 '17 at 12:00

Community

1
1

answered Nov 15 '14 at 04:15

romtsn

11,234
2
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47

I tried what you suggested but there was no scrolling at all – user1892775 Nov 15 '14 at 15:30

score 0 · Answer 4 · edited Aug 11 '15 at 09:20

try this one:-

yourListView.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                int duration = 500; // miliseconds
                int offset = 0;
                yourListView.smoothScrollToPositionFromTop(arg2, offset, duration);
                yourListView.setSelection(arg2);
            }
        });

Android listview how to scroll selected item to the top

4 Answers4