如何为 ModalBottomSheet 添加边距?

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英文:

How to give a ModalBottomSheet a margin?

问题

如果我给ModalBottomSheet添加水平边距,左右边距会不同。

为什么左右边距会有不同的效果?

以下是我的代码。

class TestPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: ElevatedButton(
          onPressed: () {
            showModalBottomSheet(
              context: context,
              backgroundColor: Colors.transparent,
              builder: (context) {
                return Container(
                  height: 200,
                  color: Colors.black,
                  // 我使用了水平属性来应用相同的左右边距,
                  // 但当我查看屏幕时,
                  // 左右边距是不同的。
                  margin: EdgeInsets.symmetric(horizontal: 15),
                  child: Text('文本'),
                );
              },
            );
          },
          child: Text('显示底部模态框'),
        ),
      ),
    );
  }
}

注意:上述代码是一个Flutter代码示例,用于显示底部模态框,并涉及边距问题。

英文:

如何为 ModalBottomSheet 添加边距?

If I give the ModalBottomSheet a horizontal margin, the margin on the left and right is different.

Why are the right and left margins applied differently?

Here is my code.

class TestPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: ElevatedButton(
          onPressed: () {
            showModalBottomSheet(
              context: context,
              backgroundColor: Colors.transparent,
              builder: (context) {
                return Container(
                  height: 200,
                  color: Colors.black,
                  // I applied the same left and right margins 
                  // with the horizontal property, 
                  // but when I look at the screen,
                  // the left and right margins are different.
                  margin: EdgeInsets.symmetric(horizontal: 15),
                  child: Text('text'),
                );
              },
            );
          },
          child: Text('show bottom modal'),
        ),
      ),
    );
  }
}

答案1

得分: 1

你可以使用EdgeInsets来实现一致的左右边距:

Widget build(BuildContext context) {
  return Scaffold(
    body: Center(
      child: ElevatedButton(
        onPressed: () {
          showModalBottomSheet(
            context: context,
            backgroundColor: Colors.transparent,
            builder: (context) {
              return Container(
                height: 200,
                color: Colors.black,
                margin: EdgeInsets.only(left: 15, right: 15),  //添加这一行
                child: Text('文本'),
              );
            },
          );
        },
        child: Text('显示底部模态框'),
      ),
    ),
  );
}

输出:

如何为 ModalBottomSheet 添加边距?

英文:

You can use EdgeInsets to achieve consistent left and right margins:

 Widget build(BuildContext context) {
return Scaffold(
  body: Center(
    child: ElevatedButton(
      onPressed: () {
        showModalBottomSheet(
          context: context,
          backgroundColor: Colors.transparent,
          builder: (context) {
            return Container(
              height: 200,
              color: Colors.black,
              margin: EdgeInsets.only(left: 15, right: 15),  //add this line
              child: Text('text'),
            );
          },
        );
      },
      child: Text('show bottom modal'),
    ),
   ),
 );
}

Output:

如何为 ModalBottomSheet 添加边距?

huangapple
  • 本文由 发表于 2023年5月29日 11:53:37
  • 转载请务必保留本文链接:https://go.coder-hub.com/76354583.html
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