Flutter：如何制作带有提示文本但没有下划线的文本字段？

Question

This is what I'm trying to make:

In the Flutter docs for Text Fields ( https://flutter.io/text-input/ ) it says you can remove the underline by passing null to the decoration. However, that also gets rid of the hint text.

I do not want any underline whether the text field is focused or not.

UPDATE: updated accepted answer to reflect changes in Flutter SDK as of April 2020.

Answer 1

Do it like this:

TextField(
  decoration: new InputDecoration.collapsed(
    hintText: 'Username'
  ),
),

or if you need other stuff like icon, set the border with InputBorder.none

InputDecoration(
    border: InputBorder.none,
    hintText: 'Username',
  ),
),

Answer 2

new flutter sdk since after integration of web and desktop support you need to specify individually like this

TextFormField(
    cursorColor: Colors.black,
    keyboardType: inputType,
    decoration: new InputDecoration(
        border: InputBorder.none,
        focusedBorder: InputBorder.none,
        enabledBorder: InputBorder.none,
        errorBorder: InputBorder.none,
        disabledBorder: InputBorder.none,
        contentPadding:
            EdgeInsets.only(left: 15, bottom: 11, top: 11, right: 15),
        hintText: "Hint here"),
  )

Answer 3

Here is a supplemental answer that shows some fuller code:

  Container(
    decoration: BoxDecoration(
      color: Colors.tealAccent,
      borderRadius:  BorderRadius.circular(32),
    ),
    child: TextField(
      decoration: InputDecoration(
        hintStyle: TextStyle(fontSize: 17),
        hintText: 'Search your trips',
        suffixIcon: Icon(Icons.search),
        border: InputBorder.none,
        contentPadding: EdgeInsets.all(20),
      ),
    ),
  ),

Notes:

• The dark background (code not shown) is Colors.teal .
• InputDecoration also has a filled and fillColor property, but I couldn't get them to have a corner radius, so I used a container instead.

Answer 4

change the focused border to none

TextField(
      decoration: new InputDecoration(
          border: InputBorder.none,
          focusedBorder: InputBorder.none,
          contentPadding: EdgeInsets.only(left: 15, bottom: 11, top: 11, right: 15),
          hintText: 'Subject'
      ),
    ),

Answer 5

I found no other answer gives a border radius, you can simply do it like this, no nested Container

  TextField(
    decoration: InputDecoration(
      border: OutlineInputBorder(
        borderSide: BorderSide.none,
        borderRadius: BorderRadius.circular(20),
      ),
    ),
  );

Answer 6

To make a Borderless TextFormField i found below solution:

It is without using container.

TextFormField(
      decoration: InputDecoration(
          border: OutlineInputBorder(
                         borderRadius: BorderRadius.circular(15.0),
                         borderSide: BorderSide.none,
                            ),

           labelText: "Student email/id",
           floatingLabelStyle: const TextStyle(
                                    height: 4,
                                    color: Color.fromARGB(255, 160, 26, 179)),
                                
           filled: true,
           fillColor: Colors.grey[200],
           prefixIcon: const Icon(Icons.person),
                ),
           ),

Sample Normally:

While having input error:

While user input:

Answer 7

You can use TextFormField widget of Flutter Form as your requirement.

TextFormField(
     maxLines: 1,
     decoration: InputDecoration(
          prefixIcon: const Icon(
              Icons.search,
              color: Colors.grey,
          ),
      hintText: 'Search your trips',
      border: OutlineInputBorder(
         borderRadius: BorderRadius.all(Radius.circular(10.0)),
      ),
    ),
 ),

Answer 8

TextField widget has a property decoration which has a sub property border: InputBorder.none .This property would Remove TextField Text Input Bottom Underline in Flutter app. So you can set the border property of the decoration of the TextField to InputBorder.none , see here for an example:

border: InputBorder.none : Hide bottom underline from Text Input widget.

 Container(
        width: 280,
        padding: EdgeInsets.all(8.0),
        child : TextField(
                autocorrect: true,
                decoration: InputDecoration(
                border: InputBorder.none,
                hintText: 'Enter Some Text Here')
            )
    )

Answer 9

            Container(
         height: 50,
          // margin: EdgeInsets.only(top: 20),
          decoration: BoxDecoration(
              color: Colors.tealAccent,
              borderRadius: BorderRadius.circular(32)),
          child: TextFormField(
            cursorColor: Colors.black,
            // keyboardType: TextInputType.,
            decoration: InputDecoration(
              hintStyle: TextStyle(fontSize: 17),
              hintText: 'Search your trips',
              suffixIcon: Icon(Icons.search),
              border: InputBorder.none,
              contentPadding: EdgeInsets.all(18),
            ),
          ),
        ),

Answer 10

To remove underline border: InputBorder.none,

For hint use hintText: 'Hint Text'

   TextFormField(
      InputDecoration(
        border: InputBorder.none,
        hintText: 'Hint Text',
      ),
    ),

Answer 11

To remove TextField underline in Flutter, you can simply use InputBorder.none.

TextField(
  decoration: InputDecoration(
    hintText: 'Hint Text',
    border: InputBorder.none,
  ),
)

Answer 12

Default

 Container(
      padding: const EdgeInsets.all(20),
      child: const TextField(
        decoration: InputDecoration(
            border: UnderlineInputBorder(), hintText: "Search Your tips"),
      ),
    ),

---

Outline Border

 Container(
      padding: const EdgeInsets.all(20),
      child: TextField(
        decoration: InputDecoration(
          border: OutlineInputBorder(
            borderRadius: BorderRadius.circular(40),
          ),
          hintText: "Search Your tips",
        ),
      ),
    ),

---

No Border

 Container(
      padding: const EdgeInsets.all(20),
      child: const TextField(
        decoration: InputDecoration(
            border: InputBorder.none, hintText: "Search Your tips"),
      ),
    ),

Answer 13

Try the following code:

TextFormField(
  decoration: InputDecoration(
    border: OutlineInputBorder(borderSide: BorderSide.none, borderRadius: BorderRadius.circular(30.0)),
    hintText: "Search your trips",
    hintStyle: const TextStyle(color: Colors.white, fontWeight: FontWeight.w300),
    filled: true,
    fillColor: Colors.cyan[200],
    suffixIcon: IconButton(
      onPressed: () {},
      icon: const Icon(Icons.search, color: Colors.white),
    ),
  ),
),

Answer 14

TextField(style: TextStyle(color: Colors.black45,fontSize: 18,decorationThickness: 0.0)) .
It's showing without underline with decorationThickness:0.0 .

Answer 15

decoration: InputDecoration(
 border:OutLineInputBorder(
 borderSide:BorderSide.none
 bordeRadius: BordeRadius.circular(20.0)
 )
)

Answer 16

I was using the TextField flutter control.I got the user typed input using below methods.

onChanged:(value){
}