Android 在dispose()之后调用setState():_StatefulBuilderState#09642(生命周期状态:失效,未装入)

Android 在dispose()之后调用setState():_StatefulBuilderState#09642(生命周期状态:失效,未装入),android,flutter,dart,async-await,flutter-showmodalbottomsheet,Android,Flutter,Dart,Async Await,Flutter Showmodalbottomsheet,我用底页显示内容,我在计算后更新文件夹大小,使用statefulbuilder的setState,我也使用了mounted condition,然后在调用dispose后显示setState,帮我解决这个问题 FileStat fileStat = selectedFilesAndFolders.last.statSync(); String size = '0 KB'; showModalBottomSheet( context: context, shape:

我用底页显示内容,我在计算后更新文件夹大小,使用statefulbuilder的setState,我也使用了mounted condition,然后在调用dispose后显示setState,帮我解决这个问题

FileStat fileStat = selectedFilesAndFolders.last.statSync();
  String size = '0 KB';
  showModalBottomSheet(
      context: context,
      shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.only(
        topLeft: Radius.circular(12.0),
        topRight: Radius.circular(12.0),
      )),
      builder: (context) {
        return StatefulBuilder(builder: (context, newSetState) {
          getFolderSize(selectedFilesAndFolders.last.path).then((value) {
            if (!mounted) return;

            newSetState(() {
              size = value;
            });
          });

          return SingleChildScrollView(
            child: Column(
              children: [
                SizedBox(
                  height: 2.0,
                ),
                Text(
                  'Info',
                  style: TextStyle(
                    fontWeight: FontWeight.bold,
                  ),
                ),
                SizedBox(
                  height: 2.0,
                ),
                Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Expanded(
                        child: Align(
                            alignment: Alignment.centerRight,
                            child: Text('Name: '))),
                    Expanded(
                        child: Text(path
                            .basename(selectedFilesAndFolders.last.path)))
                  ],
                ),
                SizedBox(
                  height: 2.0,
                ),
                Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Expanded(
                        child: Align(
                            alignment: Alignment.centerRight,
                            child: Text('Size: '))),
                    Expanded(child: Text(size)),
                  ],
                ),
                SizedBox(
                  height: 2.0,
                ),
                Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Expanded(
                        child: Align(
                            alignment: Alignment.centerRight,
                            child: Text('Last Modified Date: '))),
                    Expanded(child: Text(fileStat.modified.toString()))
                  ],
                ),
                SizedBox(
                  height: 2.0,
                ),
              ],
            ),
          );
        });
      });
试试下面的方法

if(!mounted){
设置状态(){
大小=值;
}),
};

如果我使用上述条件,则底部板材打开时,设置状态将不起作用。我试过你的密码。现在错误没有出现,但是没有调用setState来更新大小。在您的代码中,您调用了
newSetState
,但是您似乎需要调用
setState
,我更新了我的答案以反映这一点