blocks|key|1028306|text|作为一种解决办法，您可以创建一个包含新重新生成的数据的新适配器，然后调用ListView.setAdapter。之后调用ListView.setSelection(n)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1028307|顺便说一句，commonsware提供的解决方案是可行的。|1028308|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

as a workaround, you can create a new adapter containing the new regenerated data, then call ListView.setAdapter. after that call ListView.setSelection(n).

btw, the solution provided by commonsware is worked.

blocks|key|1243204|text|调用listView.setSelectionAfterHeaderView();滚动到顶部|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1243205|entityMap^0|2|13|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

call <code>listView.setSelectionAfterHeaderView();</code> to scroll to top

blocks|key|1243225|text|我只是简单地使用listview.setSelection(0);|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1243226|对我来说很好。|1243227|entityMap^0|8|P|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

I simply use <code>listview.setSelection(0);</code>

Works fine for me.

blocks|key|1028406|text|我试了很多，但这个对我很管用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1028407|list.smoothScrollToPosition(0);|code-block|syntax|javascript|1028408|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I have tried lot but this one worked for me 

<pre><code>list.smoothScrollToPosition(0);
</code></pre>

blocks|key|1243325|text|如果您需要在ListView适配器数据更改后立即滚动，请注意它可能尚未填充。在这种情况下，您应该通过Handler+post()您的setSelection()或setSelectionAfterHeaderView()，以便稍后在队列中调用它。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1243326|listView.Handler.post(new+Runnable()+{
++++++++++++@Override
++++++++++++public+void+run()+{
++++++++++++++++listView.setSelectionAfterHeaderView();++++
++++++++++++}
++++++++});|code-block|syntax|javascript|1243327|这对我很有效。|1243328|entityMap^0|6|8|1E|7|1M|6|1U|E|29|T|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|N|$]]

If you need instant scroll just after <code>ListView</code> adapter's data was changed, pay attention that it might not be yet populated. In this case you should <code>post()</code> your <code>setSelection()</code> or <code>setSelectionAfterHeaderView()</code> via <code>Handler</code> so it will be called later in the queue.

<pre><code>listView.Handler.post(new Runnable() {
 @Override
 public void run() {
 listView.setSelectionAfterHeaderView(); 
 }
 });
</code></pre>

This worked for me.

blocks|key|1028475|text|一些不同的需求。如果您想要像聊天时那样向上滚动。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1028476|++++++++mListView.smoothScrollToPosition(mAdapter.getCount());|code-block|syntax|javascript|1028477|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

On some different requirement.
If you want to scroll up just like while chatting. 

<pre><code> mListView.smoothScrollToPosition(mAdapter.getCount());
</code></pre>

blocks|key|1243532|text|当你想聚焦listview头中的edittext时，这个方法工作得很好|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1243533|listview.setSelectionFromTop(0,0);|code-block|syntax|javascript|1243534|如果要从listview中选择特定的索引视图，则|1243535|listview.setSelection(index);+//+o+for+top|1243536|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

This one worked fine when you want to focus the edittext from listview header

<pre><code>listview.setSelectionFromTop(0,0);
</code></pre>

If you want to select the particular index view from listview then 

<pre><code>listview.setSelection(index); // o for top
</code></pre>

I have a <code>ListView</code> with custom rows. When any of these rows is
clicked, the ListView's data is regenerated. I'd like the list to
scroll back to the top when this happens.

I initially tried using <code>setSelection(0)</code> in each row's <code>OnClickListener</code>
to achieve this but was unsuccessful (I believe because the <code>ListView</code>
loses its scroll position when its data is invalidated - so my call to
setSelection is undone. I still don't understand how the ListView
decides where to scroll to after invalidation, though).

The only working solution I know of was given by Romain Guy here:
<a href="http://groups.google.com/group/android-developers/browse_thread/thread/127ca57414035301" rel="noreferrer">http://groups.google.com/group/android-developers/browse_thread/thread/127ca57414035301</a>

It involves (<code>View.post</code>)ing the call to <code>_listView.setSelection(0)</code>. I
found this to perform quite poorly.
The newly generated list shows up with its scroll location unchanged
and there is a considerable delay before it scrolls back to the top.

Is there any better way to achieve this functionality?

Any help would be much appreciated.

Thanks!

Android ListView scrolling to top

我有一个带有自定义行的ListView。当单击这些行中的任何一行时，都会重新生成ListView的数据。当发生这种情况时，我希望列表滚动回到顶部。我最初尝试在每一行的OnClickListener中使用setSelection(0)来实现这一点，但是没有成功(我相信这是因为当ListView的数据无效时，它就失去了滚动...

问安卓ListView滚动到顶部
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