Android的ListView数据更新后，如何使最新的条目可以自动滚动到可视范围内？

谁践踏了优雅 2022-08-05 11:25 22阅读 0赞

在ListView的layout配置中添加 android:transcriptMode="alwaysScroll"

**\[html\]**  [view plain][] [copy][view plain]

1.  **<****ListView**  
2.      android:id="@+id/listView"  
3.      android:layout\_width="match\_parent"  
4.      android:layout\_height="wrap\_content"  
5.      android:layout\_alignParentLeft="true"  
6.      android:transcriptMode="alwaysScroll"  
7.  **</****ListView****>**

或者在Java代码中执行

**\[java\]**  [view plain][] [copy][view plain]

1.  mListView = (ListView) view.findViewById(R.id.listview);  
2.          mListView.setTranscriptMode(ListView.TRANSCRIPT\_MODE\_ALWAYS\_SCROLL);

当数据改变的时候，在回调函数中使用ListView.setSelection()方法来定位到最后一行

**\[java\]**  [view plain][] [copy][view plain]

1.  ChatAdapter adapter = **new** ChatAdapter(**this**);  
2.    
3.  ListView lv = (ListView) findViewById(R.id.chatList);  
4.  lv.setTranscriptMode(AbsListView.TRANSCRIPT\_MODE\_ALWAYS\_SCROLL);  
5.  lv.setAdapter(adapter);  
6.    
7.  adapter.registerDataSetObserver(**new** DataSetObserver() \{  
8.      @Override  
9.      **public** **void** onChanged() \{  
10.         **super**.onChanged();  
11.         lv.setSelection(adapter.getCount() - 1);      
12.     \}  
13. \});

PS:[http://stackoverflow.com/questions/3606530/listview-scroll-to-the-end-of-the-list-after-updating-the-list][http_stackoverflow.com_questions_3606530_listview-scroll-to-the-end-of-the-list-after-updating-the-list]

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**  作者：欧阳鹏  欢迎转载，与人分享是进步的源泉！**

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![20150708201910089][]

[view plain]: http://blog.csdn.net/ouyang_peng/article/details/47398291#
[http_stackoverflow.com_questions_3606530_listview-scroll-to-the-end-of-the-list-after-updating-the-list]: http://stackoverflow.com/questions/3606530/listview-scroll-to-the-end-of-the-list-after-updating-the-list
[http_blog.csdn.net_ouyang_peng]: http://blog.csdn.net/ouyang_peng
[20150708201910089]: /images/20220731/71fee8503e7e4ce68281b3b4b57c387c.png