主要的问题是streambuilder一直在重建(如果它不会耗费我额外的读操作,那么不用担心,但如果它有,那么它就是一个问题,我假设它是有问题的)。(context);
User cUser = InheritedUser.of(context).user;
if (snap.hasError) {
print('AUP
我正在通过防火墙创建一个登录代码。我只想登录到通过电子邮件注册和认证的用户,并设置它,以便它可以自动登录。使用streambuilder创建代码,用于自动登录。copyWith( ), home: StreamBuilderI/flutter (14699): The following NoSuchMethodError was
我是Flutter的新手,我正尝试在同一个widget中使用firebase firecast中的两个集合。但是我穿不下。Flutter文档提供了一个适合小部件引用的StreamBuilder stream: FirebaseDatabase.instance.referenceschedules = event.data.snapshot.value;
// Do something with the list
我正在尝试使用Flutter和Firestore构建一个应用程序。当使用StreamBuilder从Firestore加载集合以在ListView中显示它时,我得到以下错误 The following assertion was thrown building StreamBuilder' is not a subtype of type 'Map'
I/flutter (26287)
启动后,我正在尝试处理我的应用程序的屏幕。handleCurrentScreen());函数handleCurrentScreen(): return new StreamBuilder══════════════════════
I/flutter ( 4502): The following assertion was thrown building StreamBuilder<FirebaseUserI/
我对Flutter相当陌生,所以我主要是从教程中复制代码,所以我发现它不能工作是一件奇怪的事情。EdgeInsets.all(8.0), key: _formKey,
child: StreamBuilderI/flutter ( 7320): The following assertion was thrown building StreamBuilder<QuerySnap
我正在尝试使用streambuilder从firestore中拉取数据,它被包装在一个消费者中,如下所示。但是,由于某些原因,它返回一个空错误。.height; return StreamBuilder(11582):微件库╞═══捕获到══╡异常 I/flutter (11582): The following NoSuchMethodError