ListView:限制滚动速度 [英] ListView: limit scrolling speed

问题描述

可能重复:
Android Listview降低滚动速度

Possible Duplicate:
Android Listview slow down scroll speed

当用户在ListView上滑动时，其滚动速度会非常快.我想限制速度-可能吗?

When a user swipes on a ListView its' scrolling speed can get pretty high. I'd like to limit the speed - is it possible ?

推荐答案

签出--

private class SpeedMeterOnScrollListener implements OnScrollListener {

        private long timeStamp;
        private int lastFirstVisibleItem;

        public SpeedMeterOnScrollListener() {
            timeStamp = System.currentTimeMillis();
            lastFirstVisibleItem = 0;
        }

        @Override
        public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
            long lastTime = System.currentTimeMillis();
            //calculate speed by firstVisibleItem, lastFirstVisibleItem, timeStamp and lastTime
            timeStamp = lastTime;
            lastFirstVisibleItem = firstVisibleItem;
        }

        @Override
        public void onScrollStateChanged(AbsListView view, int scrollState) {
        }
    }

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