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原标题:ListView/ListAdapter paging
  • 时间:2010-04-11 20:33:40
  •  标签:
  • android

I m 试图在海关清单Adapter中实施aging。 现在,如果在<条码>上查询<<>条码><>>>>>,则在清单中最后一项内容明显时,Im就要求下页。 <代码>ListAdapter.getCount()。

这份清单是细致的,但我不禁要问,如果清单中最后一个项目实际上对用户有目共.,那么,是否有更好的办法(或不同的方式)才能使申请得到满足。 任何人都知道如何?

最佳回答

几乎这样做:

public static final int SCROLLING_OFFSET = 5;
// ...
private final ArrayList<T> items = new ArrayList<T>();
// ...
if (SCROLLING_OFFSET == items.size() - position) {
    if (hasNextPage()) {
        addNextPage();
    }
}

private boolean hasNextPage() {
    // basically calculates whether the last 2 pages contained the same # of items
}

private void addNextPage() {
    // show spinner
    // fetch next page in a background thread
    // add to items
    notifyDataSetChanged();
}
问题回答

我认为,这样做有更好的办法。 执行<代码> OnScrollListener 界面。 查阅: 永久名单

完全取消检查。 根据我的经验,只有在即将到来时才会打听。





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