How do you access a sublist in one line Flutter
450
Use map
:
images: widget.activity.imageurl.map((i) => AssetImage(i)).toList()
Author by
Admin
Updated on December 15, 2022Comments
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Admin over 1 year
I have a model that looks like this
class Activity { int id; String title; List <String> imageurl; Activity({this.id, this.title, this.imageurl}); } List<Activity> activities = [ Activity( id: 1, title: "Ministry of Education", imageurl: ["assets/images/place1.jpg","assets/images/place2.jpg","assets/images/place3.jpg" ] ), Activity( id: 2, title: "Ministry of Sports", imageurl:["assets/images/place4.jpeg","assets/images/place5.jpg","assets/images/place6.jpg"] ), Activity( id: 3, title: "Ministry of Technology", imageurl: ["assets/images/place7.jpg","assets/images/place8.jpg","assets/images/place9.jpg"] ) ];
How would access all the imageurls in one statement instead of using multiple AssetsImages via the position in the array like below
Carousel( boxFit: BoxFit.cover, autoplay: true, animationCurve: Curves.fastOutSlowIn, animationDuration: Duration(milliseconds: 1000), indicatorBgPadding: 6, dotBgColor: Colors.grey.withOpacity(.1), dotSize: 4.0, showIndicator: true, images: [AssetImage(widget.activity.imageurl[0]), AssetImage(widget.activity.imageurl[1]), AssetImage(widget.activity.imageurl[2]) ], )
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Admin over 4 yearsError Returned type 'MappedListIterable<String, AssetImage>' is not a subtype of type Widget
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Ringil over 4 years@Deinterlect You probably need to do
ToList()