解决更新完Flutter版本后报错The method 'buildViewportChrome' isn't defined in a superclass of 'CusBehavior'提示
参考文档: https://docs.flutter.dev/release/breaking-changes/3-3-deprecations#scrollbehaviorbuildviewportchrome
问题原因:
方法
ScrollBehavior.buildViewportChrome已在v2.1中弃用。
解决方式:
使用
buildOverscrollIndicator代替buildViewportChrome方法
修改前的代码
class CusBehavior extends ScrollBehavior {
@override
Widget buildViewportChrome(
BuildContext context, Widget child, AxisDirection axisDirection) {
if (Platform.isAndroid || Platform.isFuchsia) return child;
return super.buildViewportChrome(context, child, axisDirection);
}
}
修改后的代码
class CusBehavior extends ScrollBehavior {
@override
Widget buildOverscrollIndicator(
BuildContext context, Widget child, ScrollableDetails details) {
if (Platform.isAndroid || Platform.isFuchsia) return child;
return super.buildOverscrollIndicator(context, child, details);
}
}
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