android - 选择一个选项后如何在 flutter 中关闭SimpleDialog

Question

我添加了一个带有 2 个选项的 SimpleDialog:lost 和 found。每当我做出选择并被重定向到我想要的地方时，the SimpleDialog doesn't close and stays on my screen.

开关:

switch (
  await showDialog(
    context: context,
    child: new SimpleDialog(
      title: new Text("Which category?"),
      children: <Widget>[
        new SimpleDialogOption(child: new Text("Found"),
          onPressed: () {
            goToCreate();
          },
        ),
        new SimpleDialogOption(child: new Text("Lost"),
          onPressed: () {
            //Whatever
          },
        ),
      ],
    )
  )
)

案例:

{
  case "Found":
    goToCreate();
    break;
  case "Lost":
    //Whatever
    break;
}

Answer 1

您可以在按“接受”(或其他)时从对话框中执行此操作:

Navigator.pop(context, true); // You could return any Dart type, like an enum

来自来电者:

bool dialogReturnValue = await showDialog(...);
if (dialogReturnValue == true){
    // do something
}