You can choose one from the static constants. The displayed keyboard may be affected by some factors too such as the platform and which keyboard app is used on the device. You can also read about: How to create a number only text field in Flutter ...
一、TextField 文本框组件 用于Flutter 中用户输入文本的组件,该组件效果类似 Android 原生中的 EditText 控件一样,且更加灵活和多样性。 构造函数如下: constTextField({Key key,this.controller,this.focusNode,this.decoration=constInputDecoration(),TextInputType keyboardType,this.textInputAction,this.textCapitaliz...
Flutter TextFormField是一个用于接收用户输入的文本字段的小部件。它提供了一些属性来自定义提示标签和光标位置。 提示标签(Hint Text):可以使用decoration属性中的hintText来设置提示标签。提示标签是在文本字段为空时显示的灰色文本,用于指示用户应该输入的内容。例如: 代码语言:txt 复制 TextFormField( decoration:...
import'package:flutter/material.dart';import'package:flutter/services.dart';voidmain(){runApp(newMaterialApp(home:newPullToRefreshDemo()));}classPullToRefreshDemoextendsStatelessWidget{@overrideWidgetbuild(BuildContextcontext){returnScaffold(appBar:newAppBar(title:newText("文本输入"),),body:newCenter(c...
import'package:flutter/material.dart';constColor darkBlue=Color.fromARGB(255,18,32,47);voidmain(...
The contents of the text field update to the same number as printed to console. Actual results The TextFormField doesn't change. Code sample Code sample import'package:flutter/material.dart';voidmain() {runApp(MaterialApp(home:Scaffold(appBar:AppBar(), body:constApp(),))); ...
TextFormField is auto-validating itself without updating its content causing the user to see red fields after he enter in a page containing +6 TextFormFields. Steps to Reproduce Run the following code: import 'package:flutter/material.da...
当前页面不会从bottomSheet上的操作更新。使用StatefulBuilder作为：
如果您使用的是有状态小部件（看起来是这样），则可以在构建小部件外部定义上下文相关函数，如下所示 ...
我找到了解决方案，尝试了很多东西，但它只需要一件事在SingleChildScrollView。