我想给每个容器颜色。 我尝试将其包装在容器中,然后分配颜色,但它并没有为整个项目容器着色。我尝试了所有可能的方法,但它不起作用。
PopupMenuButton<String>(
itemBuilder: (BuildContext context) {
return <PopupMenuEntry<String>>[
PopupMenuItem<String>(
value: 'option1',
child: ListTile(
leading: Icon(Icons.delete),
title: Text('Delete'),
),
),
PopupMenuDivider(),
PopupMenuItem<String>(
value: 'option2',
child: ListTile(
leading: Icon(Icons.edit),
title: Text('Edit'),
),
),
PopupMenuItem<String>(
value: 'option3',
child: ListTile(
leading: Icon(Icons.share),
title: Text('Share'),
),
),
];
},
onSelected: (String value) {
// Handle the selected option
switch (value) {
case 'option1':
// Perform delete operation
break;
case 'option2':
// Perform edit operation
break;
case 'option3':
// Perform share operation
break;
}
},
)
];
实现您的目的的一种方法是用
PopupMenuItem
帖子包裹每个 Container
的子级,您可以设置该 color
的 Container
属性。比如:
PopupMenuButton<String>(
itemBuilder: (BuildContext context) {
return <PopupMenuEntry<String>>[
PopupMenuItem<String>(
value: 'option1',
child: Container( // <---- Notice this
color: Colors.red, // Set the color here
child: ListTile(
leading: Icon(Icons.delete),
title: Text('Delete'),
),
),
),
// Similarly for others...