我是 Flutter 的新手。我正在尝试实现一个带有可扩展图像网格(用户要添加的图像)的对话框,并且每次用户添加图像(使用添加/加号按钮)时,添加的图像都会在添加/加号按钮之前插入.
我希望我的问题/代码/图片有意义。提前致谢。
我目前不完整的代码:
List<Widget> getAttachFileDialogContent() {
List<Widget> content = [];
content.add(
Column(
children: [
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(20),
border: Border.all(
color: purple1.withOpacity(0.25),
)),
margin: const EdgeInsets.only(left: 16, right: 16, bottom: 8),
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 20),
width: double.infinity,
height: 135,
child: //I want to use the grid here,
//I tried to use GridView, but didn't know how to add/insert images
//Even if I had added images, I couldn't know how to add to specific index
position
),
MyElevatedButton(
width: 100,
text: 'Done',
elevation: 0,
onPressed: () {},
),
],
),
],
),
);
return content;
}