小编Cod*_*ter的帖子

最近我将 Mac OS 更新到最新的 Catalina，我的终端现在使用 zsh 开始显示以下错误：

zsh: command not found: flutter

更新前运行正常。

我有两个不同的苹果开发者帐户,都是公司开发者帐户.我想将一些应用程序切换到另一个帐户.这可能吗？如果是,那么我该怎么做呢.请指导我.

在我的应用中，我正在创建注册页面，我需要在其中添加DOB。我想在其中添加日期选择器，但我没有正确的方法来执行此操作。

我正在调用初始方法以使用 initState 从 API 加载数据。但这导致我出错。这是错误：

Unhandled Exception: inheritFromWidgetOfExactType(_LocalizationsScope) or inheritFromElement() was called before _ScreenState.initState() completed.
When an inherited widget changes, for example if the value of Theme.of() changes, its dependent widgets are rebuilt. If the dependent widget's reference to the inherited widget is in a constructor or an initState() method, then the rebuilt dependent widget will not reflect the changes in the inherited widget.

我的代码是：

@override
  void initState() {
    super.initState();

    this._getCategories();
  }

  void _getCategories() async {
    AppRoutes.showLoader(context);
    Map<String, dynamic> data …

问候,希望你们都在那里做得很好.

我想改变我的itunes连接.我想更改其公司名称,以便在有人看到我的应用时显示.

请查看附图以获取更多详细信息.

谢谢,

CP

我正在尝试Text单击打开一个 URL 。为此，我使用InkWell如下所示：

Row(
    mainAxisAlignment: MainAxisAlignment.spaceBetween,
    children: <Widget>[
       Text('${blogModel.timeElapsed} ago'),
       InkWell(
          child: Text('Read'),
          onTap: launchURL(blogModel.url),
       )
     ],
  )

使用这个我收到以下错误：

???????? Exception caught by widgets library ???????????????????????????????????????????????????????
The following assertion was thrown building BlogTileWidget(dirty):
type 'Future<dynamic>' is not a subtype of type '() => void'

Either the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause.
In either …

我开发了iOS应用程序并在iOS6设备上进行了测试.在测试时,我意识到我的应用程序没有按预期响应方向更改.

这是我的代码:

// Autorotation (iOS >= 6.0)
- (BOOL) shouldAutorotate
{
    return NO;
}

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskAll;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationMaskPortrait;
}

确切地说,我想知道iOS中的方向更改调用了哪些方法.

使用以下代码时收到警告，但我的应用程序运行良好：

???????? Exception caught by rendering library ?????????????????????????????????????????????????????
The following assertion was thrown during paint():
A borderRadius can only be given for uniform borders.
'package:flutter/src/painting/box_border.dart':
Failed assertion: line 510 pos 12: 'borderRadius == null'

这是我的代码：

           Container(
              height: screenSize.height*.13,
              width: AppSize.medium,
              decoration: BoxDecoration(
                color: Colors.red,
                border: Border(
                  right: BorderSide(
                    width: 1.0,
                    color: Colors.blue
                  ),
                ),
                borderRadius: BorderRadius.only(
                  topRight: Radius.circular(AppSize.small),
                  bottomRight: Radius.circular(AppSize.small),
                )
              ),
            )

当我运行 build_runner 命令时，它显示以下错误：

Failed to build build_runner:build_runner:
../../.pub-cache/hosted/pub.dev/dart_style-2.3.5/lib/src/front_end/ast_node_visitor.dart:251:16: Error: The getter 'macroKeyword' isn't defined for the class 'ClassDeclaration'.
  - 'ClassDeclaration' is from 'package:analyzer/src/dart/ast/ast.dart' ('../../.pub-cache/hosted/pub.dev/analyzer-6.2.0/lib/src/dart/ast/ast.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'macroKeyword'.
          node.macroKeyword,
                ^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dev/dart_style-2.3.5/lib/src/source_visitor.dart:595:19: Error: The getter 'macroKeyword' isn't defined for the class 'ClassDeclaration'.
  - 'ClassDeclaration' is from 'package:analyzer/src/dart/ast/ast.dart' ('../../.pub-cache/hosted/pub.dev/analyzer-6.2.0/lib/src/dart/ast/ast.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named …

我试图在我的应用程序中显示小吃店以通知用户，但没有脚手架它会显示我的错误。我目前的代码是：

scaffoldKey.currentState?.showSnackBar(
    new SnackBar(
      backgroundColor: color ?? Colors.red,
      duration: Duration(milliseconds: milliseconds),
      content: Container(
        height: 50.0,
        child: Center(
          child: new Text(
            title,
            style: AppTheme.textStyle.lightText.copyWith(color: Colors.white),
            overflow: TextOverflow.ellipsis,
          ),
        ),
      ),
    ),
  )