SliverList , SliverFixedExtentList
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SliverList 高度自动,
SliverFixedExtentList 高度固定死.
CustomScrollView(
slivers:[
SliverList(
delegate: SliverChildBuilderDelegate((context, int index){
Container postPiece;
if (index == 0){
postPiece = Container(
child: Text(‘$index , aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa‘, style: TextStyle(color: Colors.grey),),
);
} else {
postPiece = Container(
child: Text(‘$index, bbbbbbbbbbbbb‘, style: TextStyle(color: Colors.black),),
);
}
return postPiece;
},
childCount: 100,
),
),
// SliverFixedExtentList(
// itemExtent: 50, //child的长度或者宽度,取决于滚动方向.
// delegate: SliverChildBuilderDelegate((context, int index) {
// print(content.mainPost);
// Container _piece;
// if (index == 0){
// _piece = Container(
// child: Text(‘dsssouu‘,style: TextStyle(color: Colors.black),),
// );
// }else{
// _piece = Container(
// child: Text(‘aaaa‘, style: TextStyle(color: Colors.grey),),
// );
// }
// return _piece;
// },
// childCount: 20,
// ),
// ),
],
),
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