颤动更改对话框背景色 [英] Flutter change dialog background color

问题描述

我正在使用 dialogBackgroundColor 属性，但颜色没有改变.谁能告诉我如何更改对话框的背景颜色?

I was using dialogBackgroundColor property still the color was not changing. Can anyone tell me how to change the background color of the dialog?

推荐答案

您需要像这样将 Dialog 包装在 Builder 中.之后， dialogBackgroundColor 将生效.

You need to wrap your Dialog in a Builder like this. After that dialogBackgroundColor will have an effect.

Theme(
  data: ThemeData(dialogBackgroundColor: Colors.orange),
  child: Builder(
    builder: (context) {
      return RaisedButton(
        onPressed: () {
          showDialog(
            context: context,
            builder: (context) {
              return AlertDialog(
                title: Text("Dialog title"),
              );
            },
          );
        },
        child: Text("Show dialog"),
      );
    },
  ),
)

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