Detecting When ScrollView Hits Bottom

iteye_3854

于 2011-07-15 14:15:29 发布

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分类专栏： Android 文章标签： Android

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本文详细介绍了如何在自定义滚动视图中实现滚动事件的处理，包括判断滚动到底部时的日志输出，以及调用父类的滚动事件方法。

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@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
        View view = (View) getChildAt(getChildCount()-1);
        int diff = (view.getBottom()-(getHeight()+getScrollY()));// Calculate the scrolldiff
        if( diff == 0 ){  // if diff is zero, then the bottom has been reached
            Log.d(ScrollTest.LOG_TAG, "MyScrollView: Bottom has been reached" );
        }
        super.onScrollChanged(l, t, oldl, oldt);
}

Fot this extend ScrollView and then overrides the onScrollChanged method (inherited from View ).