template=BUG.mdflutter:flutter: When the exception was thrown, this was the stack:出现此异常信息，我们可以理解为当前页面还未绘制完的时候，我们就使用 TextField 来获取输入焦点了，然后负责焦点控制的程序找不到着力点，所以就出现了异常了那么我们的一个解决方法可以是 不使用 autofocus 属性来获取焦点，可以...
'package:flutter/src/material/input_decorator.dart': Failed assertion: line 945 pos 7: 'layoutConstraints.maxWidth < double.infinity' 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...
在ErrorTextField中包含多行详细信息的方法是使用Flutter的自定义组件。你可以创建一个自定义的错误提示框,其中包含多行详细信息。 以下是一个示例代码,演示如何在ErrorTextField中包含多行详细信息: 代码语言:txt 复制 import 'package:flutter/material.dart'; class MultiLineErrorTextField extends Stateful...
flutter: flutter: Either the assertion indicates an errorinthe framework itself, or we should provide substantially flutter: more informationinthis error message to help you determine and fix the underlying cause. flutter: In either case, please report this assertion by filing a bug on GitHub: fl...
I/flutter ( 1091): 编辑输入的值: FocusNode? focusNode 编辑框输入获取或失去焦点监听 .编辑框首次显示输入光标时默认为没有获取焦点, 当进行了输入操作后就等同于获取了焦点 . ///编辑框获取或者失去焦点监听 VoidCallback? _focusNodeListener; FocusNode _focusNode = FocusNode(); ...
Steps to Reproduce After updating to Flutter 3.7, when a TextField gains focus, the keyboard appears but then immediately is dismissed. This issue was originally reported here. I have confirmed that this issue does not occur in Flutter v...
dependencies: flutter: sdk: flutter flutter_localizations: sdk: flutter flutter_cupertino_localizations: ^1.0.1 👍1 👍 @Aljabri-SalmanCan you still reproduce this on master? I tried your code on a few different devices and couldn't get the error message: ...
而数控机床制造商在积极改善自家机器性能并提升加工精度以符合客户需求的过程中，机器校准正确与否是影响...
Yes, you can add validation to the text field in the Flutter Alert dialog by using the validator property of the TextFormField widget. You can define a function that validates the user input and return an error message if the input is invalid. You can then use the Form widget to wrap ...
当您为TextEditingController添加一个监听器来改变文本大小时,焦点停留在TextField上的原因是每次文本改变时,TextField会自动获取焦点。 要解决这个问题,您可以在监听器中手动调用清除焦点的方法,以便焦点不会停留在TextField上。以下是一个示例代码: import 'package:flutter/material.dart'; ...