I am using a CheckboxListTile structure. But since I will have more than 100 Checkboxes in the future, I want to search them, but I could not find any source.
It is easy to search on normal lists on the Internet, but I have never searched an array of type Map<String, bool> List before.
What I want to do is to sort the key elements of the list when I type their names into a small textbox.
What path should I follow. Thanks.
Map<String, bool> List = {
"Kullanıcı 01": false,
"Kullanıcı 02": false,
"Kullanıcı 03": false,
"Kullanıcı 04": false,
"Kullanıcı 05": false,
"Kullanıcı 06": false,
"Kullanıcı 07": false,};
child: StatefulBuilder(
builder: (context, _setState) => Column(
children: [
Align(
alignment: Alignment.topLeft,
child: CheckboxListTile(
onChanged: (bool? value2) {
_setState(() {
tumunusecCheckbox = value2!;
if (tumunusecCheckbox == true) {
List.forEach((key, value) {
_setState(() {
List.update(
key, (value) => true);
});
});
} else {
List.forEach((key, value) {
_setState(() {
List.update(key,
(value) => false);
});
});
}
});
},
title: Text(
"Tümünü seç",
style: TextStyle(
color: Colors.black87,
fontWeight: FontWeight.bold),
),
value:
tumunusecCheckbox, // foreground
),
),
Expanded(
child: ListView(
children: List.keys.map<Widget>((
String key,
) {
return CheckboxListTile(
value: List[key],
title: Text(
key,
style: TextStyle(
color:
it_tool_main_blue,
fontSize: 17.0,
fontFamily:
'sans-bold.ttf',
fontWeight:
FontWeight.bold),
),
activeColor:
it_tool_main_blue,
checkColor: Colors.white,
onChanged: (bool? value) {
_setState(() {
List[key] = value!;
if (value == false) {
} else {
}
});
});
}).toList(),
),
),
],
),
),
CodePudding user response：
Even though you said "What I want to do is to sort the key elements of the list when I type their names into a small textbox.", the rest of your question suggests that you want to select matching items from a list.
Presuming this is what you want, pseudo code for a method that returns a map of items that match the key might look like this.
You call this method with the original Map and a string that you want to match to, and the method returns a list of matching items.
Match is whatever you define as a match: partial string match, first letters, soundex, regex. That part is up to you.
Map<String, String> findMatches(Map<String, String> myMap, String matchToThis) {
Map<String, String> foundItems = {};
myMap.forEach((key, value) {
if (KeyMatches) {
foundItems[key] = value;
}
}
return foundItems
}
PS:
You've created a variable named 'List' that is a map. You might want to pick a better name for this variable. That threw me off for a second.
Map<String, bool> List = {
CodePudding user response：
Thanks for help but, i dont know how can i use this function. This is my try.
TextFormField(
controller: _controller,
onChanged: findMatches(myMap, _controller.text),
),
Map<String, String> findMatches(Map<String, bool> myMap, String matchToThis) {
Map<String, bool> foundItems = {};
myMap.forEach(
(key, value) {
if (KeyMatches) {
print("lel");
foundItems[key] = value;
}
},
);
return foundItems;}}