如何删除列表视图项，如下代码？ [复制]

Question

我只需要从这个列表中删除一个项目，我已经有了我想要的索引但找不到删除的方法。

ArrayList<HashMap<String, String>> songsListData = new ArrayList<HashMap<String, String>>();
SongsManager plm = new SongsManager();

// get all songs from sdcard
this.songsList = plm.getPlayList();

// looping through playlist
for (int i = 0; i < songsList.size(); i++) {
    // creating new HashMap
    HashMap<String, String> song = songsList.get(i);

    // adding HashList to ArrayList
    songsListData.add(song);
}

// Adding menuItems to ListView
ListAdapter adapter = new SimpleAdapter(
    this,
    songsListData,
    R.layout.playlist_item,
    new String[] { "songTitle" },
    new int[] { R.id.songTitle2 });

setListAdapter(adapter);

Answer 1

如果你已经有了索引，试试这些 songsListData.remove(index); adapter.notifyDataSetChanged(); 也许在 onItemClick

Answer 2

首先从您的歌曲列表数据集合中删除项目并重新加载列表视图。