I want to build a suggestion builder where I want to display search suggestions on changing the text in TextField. I want to search on the basis of contains
method but I want to sort that particular list on the basis of startsWith
, If I only use startsWith
it neglects all other contains
, How can I apply both simultaneously? I have a List,
List<String> list = ["apple", "orange", "aaaaorange", "bbbborange","cccccorange"]
Now If I put only ora
in search it's returning me in the following order,
aaaaorange
bbbborange
cccccorange
orange
What I want.
orange
aaaaorange
bbbborange
cccccorange
Code:
return list
.where((item) {
return item.toLowerCase().contains(query.toLowerCase());
}).toList(growable: false)
..sort((a, b) {
return a.toLowerCase().compareTo(b.toLowerCase());
});
It may be easiest to think of the two queries separately, and then combine the results:
var list = <String>[
'apple',
'orange',
'aaaaorange',
'bbbborange',
'cccccorange',
];
var pattern = 'ora';
var starts = list.where((s) => s.startsWith(pattern)).toList();
var contains = list
.where((s) => s.contains(pattern) && !s.startsWith(pattern))
.toList()
..sort((a, b) => a.toLowerCase().compareTo(b.toLowerCase()));
var combined = [...starts, ...contains];
print(combined);
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