`SmartDialog.show<T>`指定范型为非空类型时，点击空白处关闭弹窗报错

[moxiaov587]

版本信息

• Flutter版本：v3.7.0
• flutter_smart_dialog版本：v4.8.2+3

描述bug

SmartDialog.show<T>指定范型为非空类型时，点击空白处关闭弹窗报错

E/flutter (30979): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: type 'Null' is not a subtype of type 'FutureOr<bool>'
E/flutter (30979): #0      _AsyncCompleter.complete (dart:async/future_impl.dart:36:41)
E/flutter (30979): #1      MainDialog._handleAwaitOver
main_dialog.dart:183
E/flutter (30979): #2      MainDialog.dismiss
main_dialog.dart:207
E/flutter (30979): <asynchronous suspension>
E/flutter (30979): #3      CustomDialog._closeSingle
custom_dialog.dart:396
E/flutter (30979): <asynchronous suspension>

问题demo

void _show() async {
    SmartDialog.show<bool>(builder: (_) { // 添加范型并指定为bool
      return Container(
        height: 80,
        width: 180,
        decoration: BoxDecoration(
          color: Colors.black,
          borderRadius: BorderRadius.circular(10),
        ),
        alignment: Alignment.center,
        child: Text(
          'easy custom dialog',
          style: TextStyle(color: Colors.white),
        ),
      );
    });
  }

[xdd666t]

• 新版本发布了哈

dependencies:
  flutter_smart_dialog: ^4.8.2+4