我正在尝试在颤动中使用 AlertDialog,用户可以在其中按下卡片来选择图标。一旦他们选择了图标,AlertDialog 应该显示新选择的图标。
现在,我有它,每次用户点击卡片时,卡片都会重新加载。但是,这意味着如果我选择一个图标,我需要点击以选择第二个图标,然后才能重新加载我之前的更改。
欢迎所有关于如何处理此类事情的建议和/或不同的想法。
这是我下面的代码:
import 'package:flutter/material.dart';
import 'package:test_003/data/dataStoreLegendItems.dart'; //has defaultIcon which should get updated
import 'package:test_003/dialogs/iconPickerDialog.dart';
class IconPickerCard extends StatefulWidget {
var alertDialogContext;
IconPickerCard({this.alertDialogContext});
@override
_IconPickerCardState createState() => _IconPickerCardState();
}
class _IconPickerCardState extends State<IconPickerCard> {
@override
Widget build(BuildContext context) {
return new Card(
child: ListTile(
leading: legendItems.defaultIcon,
title: Text('Select Icon'),
onTap: () async {
setState(() {
print("First line of IconPickerCard set state");
showIconPickerDialog(widget.alertDialogContext);
print('Icon Picker Card List Tile pressed');
});
},
),
);
}
}
这被警报对话框调用:
import 'package:flutter/material.dart';
import 'package:test_003/components/iconPickerForPopup.dart';
class ReuseAddPopup extends StatefulWidget {
@override
_ReuseAddPopupState createState() => _ReuseAddPopupState();
}
class _ReuseAddPopupState extends State<ReuseAddPopup> {
@override
Widget build(BuildContext context) {
return AlertDialog(
content: Column(
children: [
IconPickerCard(alertDialogContext: context),
],
),
);
}
}
这是它的样子: 警报对话框 然后当卡片被按下时: IconPicker 选择图标后,更改不会反映在卡片上,直到再次按下卡片: 选择图标后