问题描述
我有一个ListView.builder(),我不希望它的项目重新呈现,我尝试了此解决方案Solution 但是什么也没发生,它一直在重新渲染,所以我不知道出了什么问题。
代码
StreamBuilder<Object>(
stream: Firestore.instance
.collection('Khatma Collection')
.document('Khatma 1')
.collection('Videos')
.snapshots(),builder: (context,AsyncSnapshot snapshot) {
if (snapshot.hasData) {
return ListView.builder(
shrinkWrap: true,itemCount: snapshot.data.documents.length,itemBuilder: (context,i) {
var rng = new Random();
int ii = rng.nextInt(4);
if (ii == iii) {
} else {
iii = ii;
var link = snapshot.data.documents[ii].data['Link'];
var uploader = snapshot.data.documents[ii].data['Uploader'];
final videoPlayerController =
VideoPlayerController.network(link);
chewieController = ChewieController(
allowMuting: true,autoInitialize: true,deviceOrientationsAfterFullScreen: orientation,allowFullScreen: true,aspectRatio: 16 / 9,videoPlayerController: videoPlayerController,);
return SingleChildScrollView(
child: Column(
children: [
Chewie(
controller: chewieController,),],);
}
},);
解决方法
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