志在巅峰的攀登者，不会陶醉在沿途的某个脚印之中，在码农的世界里，优美的应用体验，来源于程序员对细节的处理以及自我要求的境界，年轻人也是忙忙碌碌的码农中一员，每天、每周，都会留下一些脚印，就是这些创作的内容，有一种执着，就是不知为什么，如果你迷茫，不妨来瞅瞅码农的轨迹。
本文章的效果如下：
1 核心代码是通过 LayoutBuilder来获取父窗口尺寸
LayoutBuilder(builder: (BuildContext context, BoxConstraints constraints) {
double maxWidth = constraints.maxWidth;
double minWidth = constraints.minWidth;
double maxHeight = constraints.maxHeight;
double minHeight = constraints.minHeight;
if(maxWidth>400) {
return buildRow();
}
return buildColumn();
},)
2 全部代码实现
class LayoutBuilderPage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: LayoutBuilder(
builder: (BuildContext context, BoxConstraints constraints) {
double maxWidth = constraints.maxWidth;
double minWidth = constraints.minWidth;
double maxHeight = constraints.maxHeight;
double minHeight = constraints.minHeight;
if (maxWidth > 400) {
return buildRow();
}
return buildColumn();
},
),
),
);
}
Widget buildRow() {
return Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ElevatedButton(onPressed: () {
}, child: Text("右侧按钮")),
SizedBox(
width: 60,
),
ElevatedButton(onPressed: () {
}, child: Text("左侧按钮")),
],
);
}
Widget buildColumn() {
return Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ElevatedButton(onPressed: () {
}, child: Text("右侧按钮")),
SizedBox(
height: 60,
),
ElevatedButton(onPressed: () {
}, child: Text("左侧按钮")),
],
);
}
}
如果你迷茫 不妨来此 每日分享 先积累着再说
更多Widget 的应用，小编已总结在书中
