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我有一台三星 Tab S2 版本 7 安卓平板电脑。

我在EditableText小部件中找不到任何解决此错误的方法。

发生的情况是，在具有各自TextEditingController的TextFormField小部件中，我输入了我的用户名，但是当我更改键盘上的字符来搜索它时，我需要这个字符“_”...我收到此错误.. .

颤振医生-v

[√] Flutter (Channel stable, 2.8.1, on Microsoft Windows [version 10.0.19044.1466], locale fr-FR)
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[√] Connected device (3 available)
    • SM T813 (mobile) • 3b8bea59055e2627 • android-arm64  • Android 7.0 (API 24)
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在此处输入图像描述

在此处输入图像描述

这是代码...

TextEditingController accountController = TextEditingController();

   Padding(
      padding: EdgeInsets.fromLTRB(20, 0, 20, 0),
      child: TextFormField(
        scrollPadding: EdgeInsets.only(
          bottom: Device.screenHeight * 0.25,
        ),
        controller: accountController ,
        textInputAction:
            widget.isPassword ? TextInputAction.done : TextInputAction.next,
        onFieldSubmitted: () {},
        enableSuggestions: !widget.isPassword,
        autocorrect: !widget.isPassword,
        obscureText: widget.isPassword && this.isPasswordHidden!,
        validator: () {},
        style: TextStyle(
          fontSize: 20,
        ),
        decoration: InputDecoration(
          suffixIcon: IconButton(
                  icon: Icon(
                    Icons.visibility_off,
                    size: 30,
                    color: DesignConstants.loginFontColor,
                  ),
                  onPressed: (){},
                  splashRadius: 10,
                ),
          hintText: widget.labelText,
          helperText: widget.helperText,
        ),
      ),
    )
4

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