Scroll ListView By Key - Android android.widget

Android examples for android.widget:ListView

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Description

Scroll ListView By Key

Demo Code

import android.view.KeyEvent;
import android.widget.ListView;

public class Main{

    public static boolean ScrollListViewByKey(ListView lv, int keyCode) {
        if (lv != null) {
            int offset = (int) (lv.getHeight() * 0.95);
            if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
                lv.smoothScrollBy(offset, 500);
                return true;
            } else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
                lv.smoothScrollBy(-1 * offset, 500);
                return true;
            }/* w w  w .  j  av  a 2  s  .c  o m*/
        }
        return false;
    }

}

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