Flutter - can't scroll to the bottom of listView-CodePudding

I have code like this:

Column(children: [
      Container(
        alignment: Alignment.centerLeft,
        child: IconButton(
          color: theme.iconTheme.color,
          icon: const Icon(Icons.arrow_back),
          onPressed: () {
            Navigator.pop(context);
          },
        ),
      ),
      Expanded(
        child: ListView(
          children: allOperations,
          controller: listViewController,
        ),
      ),
]);

and I want to scroll to the bottom after widget is built.

WidgetsBinding.instance?.addPostFrameCallback((_) {
  listViewController.jumpTo(listViewController.position.maxScrollExtent);
});

but it doesn't work. Always remain about 150px to scroll down.

Anyone had this problem?

CodePudding user response：

Have you tried to leave some white space below your list? This is typically a SizedBox and it would allow you to see the rest of your list and then leave some more depending on the size you choose.

CodePudding user response：

adding Timer before scroll may solve your problem, I guess listview needs some time to add a new item.

Timer(Duration(milliseconds: 100), () {
    WidgetsBinding.instance?.addPostFrameCallback((_) {
  listViewController.jumpTo(listViewController.position.maxScrollExtent);
    });
});

you can also try "animateTo" instead:

Timer(Duration(milliseconds: 100), () {
    listViewController.animateTo(
      listViewController.position.maxScrollExtent,
      curve: Curves.easeOut,
      duration: const Duration(milliseconds: 750),
    );
});