机器人 - 列表视图过滤器计数 [英] android - listview filter count

问题描述

所以，当我设置我的列表视图过滤器：

So after I set the filter on my listview:

//Log adapter count before filter
listView.getFilter().filter(searchStr)
//Log adapter count after filter

我试图做到的，是得到了过滤的结果的数量。就像如果之前已经有10个项目，那么我应用滤镜，所以现在只有5个项目会出现，我想那算不算5。我已经试过前和过滤器，没有运气后检查适配器数量。他们显示相同的数（我使用BaseExpandableListAdapter），如果我申请过滤器，如果我再次申请过滤从之前数变化（但前和过滤后仍然是相同的）。

What I'm trying to achieve is to get the count of the result of that filtering. Like if before there are 10 items, then I apply the filter, so now only 5 items will appear, I want to get that count "5". I've tried checking the adapter count before and after the filter with no luck. They're displaying same count (I'm using a BaseExpandableListAdapter) if I apply filter, and if I apply filter again the number changes from before (but the before and after of filter is still the same).

下面是一个样本结果是什么，我让我的日志：

Below is a sample result of what I'm getting on my logs:

Before filter the count is 10. After filter the count is 10.
Before filter the count is 8.  After filter the count is 8.

我想，也许我的适配器没有得到体现伯爵马上，但在第二个过滤器，它改变了价值，所以我想过滤后notifyDataSetChanged会有所作为，但事实并非如此。任何帮助将是AP preciated。

I thought maybe my adapter doesn't get the reflected count right away but on the second filter, it changes the value, so I thought notifyDataSetChanged after the filter would make a difference, but it did not. Any help would be appreciated.

感谢。

推荐答案

这是我如何设法做到这一点：

This is how I managed to do it:

myAdapter.getFilter().filter(searchText, new Filter.FilterListener() {
    public void onFilterComplete(int count) {
         Log.d("log", "result count:" + count);
    }
}

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