I have Object list, my list is built with multiple types of data (Int, String, List of bool, list of String, bool...), from that list I want to save the data of some bool variables (for example when I tap a button). Is there any way to save that changed bools instead of save all the data? If the only way to save the data is saving all the list, how I can do that?
I see on internet that I have to map my list first in order to get it back later, only with map because my list is not a list of Strings, however I don't understand how to implement that, and how to get data back later, any idea ?
Example of one list I used:
import 'dart:ui';
class DefinitiveList {
int id;
String num;
String name;
bool like; //variable I want to save
bool catched; //variable I want to save
DefinitiveList(
this.id,
this.num,
this.name,
this.like,
this.catched
);
}
final List<DefinitiveList> definiti = [ //DefinitiveList is a class
DefinitiveList(
1, //id,
"88", //num
"Eli", //name
true, //like
false, //catched
),
DefinitiveList(
2, //id,
"17", //num
"Juan", //name
false, //like
false, //catched
),]
UPDATE:
here is a example list of my code:
Widget listView() {
int columnCount = 3;
final deviceWidth = MediaQuery.of(context).size.width;
return AnimationLimiter(
child: ListView.builder(
controller: myScrollController,
padding: EdgeInsets.only(
top: 10.0,
),
itemCount: definiti.length,
key: PageStorageKey<String>(
'listsave'),
itemBuilder: (context, index) {
final dlists = definiti[index];
return GestureDetector(
onTap: () {
dlists.like = !like; //I want to retrieve this
dlists.catched = !catched; //I want to retrieve this
},
child: Padding(
padding: EdgeInsets.only(
bottom: 25.0,
right: 20.0,
left: 20.0,
),
child:
Stack(alignment: Alignment.centerLeft, children: <Widget>[
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(25),
// ignore: prefer_const_literals_to_create_immutables
boxShadow: [
shadows.BoxShadow(
blurRadius: 10,
offset: Offset(10, 10),
spreadRadius: 1,
color: Constant.isDarkMode
? Constant.greShadowDark
: Constant.greShadowLight,
)
],
color: Constant.isDarkMode
? Constant.darktMode
: Constant.lightMode,
),
child: Padding(
padding: EdgeInsets.symmetric(
horizontal: 20.0,
vertical: 20.0,
),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
SizedBox(
width: deviceWidth * 0.34,
),
Flexible(
child: Column(
mainAxisAlignment: MainAxisAlignment
.center, //Center Column contents vertically,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment
.center, //Center Row contents horizontally,
crossAxisAlignment:
CrossAxisAlignment.center,
children: <Widget>[
Text(
dlists.name, //NOOOOOOMBRE
style: TextStyle(
fontSize: 22.0,
color: Constant.isDarkMode
? Colors.grey
: Colors.black,
fontWeight: FontWeight.bold,
),
),
],
),
SizedBox(
height: 20.0,
),
Row(
mainAxisAlignment: MainAxisAlignment
.center, //Center Row contents horizontally,
crossAxisAlignment:
CrossAxisAlignment.center,
children: [
ZoomIn(
child: InkWell(
onTap: () {},
child: Container(
//margin: const EdgeInsets.all(10.0),
decoration: BoxDecoration(
boxShadow: [
shadows.BoxShadow(
blurRadius: 7,
offset: Offset(-7, -7),
color: Constant
.isDarkMode
? Constant
.whiteShadowDark
: Constant
.whiteShadowLight,
inset: true,
spreadRadius: 1),
shadows.BoxShadow(
blurRadius: 7,
offset: Offset(7, 7),
spreadRadius: 1,
color: Constant.isDarkMode
? Constant
.greShadowDark
: Constant
.greShadowLight,
)
],
// ignore: prefer_const_literals_to_create_immutables
shape: BoxShape.rectangle,
borderRadius:
BorderRadius.only(
topLeft:
Radius.circular(
15.0),
topRight:
Radius.circular(
15.0),
bottomRight:
Radius.circular(
15.0),
bottomLeft:
Radius.circular(
15.0))),
width: MediaQuery.of(context)
.size
.width *
0.20,
height: MediaQuery.of(context)
.size
.width *
0.080,
// ignore: prefer_const_constructors
child: Center(
child: Text(
dlists.type1,
style: GoogleFonts.rubik(
fontSize: 15,
color: Colors.white,
),
),
),
),
),
),
]),
]),
),
],
),
),
),
]),
),
);
}),
);
}
