Flutter删除列表项

Question

我的flartter dart脚本中有一个问题,这是我的脚本:

List<ReplyTile> replytile = new List<ReplyTile>();

replytile.add(
    new ReplyTile(
        member_photo: "photo",
        member_id: "001",
        date: "01-01-2018",
        member_name: "Denis",
        id: "001",
        text: "hallo.."
    )
);

我的问题是:如何删除上的项目List<ReplyTile>有id = 001..？

提前致谢

Answer 1

removeWhere 允许这样做:

replytile.removeWhere((item) => item.id == '001')

另请参见List Dartdoc

Answer 2

//For removing specific item from a list with the attribute value
replytile.removeWhere((item) => item.id == '001') 

//Remove item by specifying the position of the item in the list
replytile.removeAt(2)   

//Remove last item from the list
replytile.removeLast()

//Remove a range of items from the list
replytile.removeRange(2,5)

Answer 3

在您的情况下，这有效：

replytile.removeWhere((item) => item.id == '001');

对于具有特定数据类型（例如 int）的列表，删除也有效。例如：

List id = [1,2,3];
id.remove(1);

Answer 4

这也有效

_listofTaskUI.removeAt(_quantity);