How to Move bottomsheet along with keyboard which has textfield(autofocused is true)?

问题

I'm trying to make a bottomsheet which has a text field and autofocus is set to true so that the keyboard pops up. But, bottomsheet is overlapped by keyboard. Is there a way to move bottomsheet above the keyboard?

Padding(
  padding:
      EdgeInsets.only(bottom: MediaQuery.of(context).viewInsets.bottom),
  child: Column(children: <Widget>[
    TextField(
      autofocus: true,
      decoration: InputDecoration(hintText: 'Title'),
    ),
    TextField(
      decoration: InputDecoration(hintText: 'Details!'),
      keyboardType: TextInputType.multiline,
      maxLines: 4,
    ),
    TextField(
      decoration: InputDecoration(hintText: 'Additional details!'),
      keyboardType: TextInputType.multiline,
      maxLines: 4,
    ),]);

回答1:

In flutter 1.7.X and later more functionalities have been added to BottomSheetDialog so in addition to @anmol.majhail answer you can add isScrollControlled = true to showModalBottomSheet it'll allow the bottom sheet to take the full required height which gives more insurance that TextField is not covered by the keyboard.

Like this:

 showModalBottomSheet(
    shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.vertical(top: Radius.circular(25.0))),
    backgroundColor: Colors.black,
    context: context,
    isScrollControlled: true,
    builder: (context) => Padding(
      padding: const EdgeInsets.symmetric(horizontal:18 ),
      child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            mainAxisSize: MainAxisSize.min,
            children: <Widget>[
              Padding(
                padding: const EdgeInsets.symmetric(horizontal: 12.0),
                child: Text('Enter your address',
                    style: TextStyles.textBody2),
              ),
              SizedBox(
                height: 8.0,
              ),
              Padding(
                padding: EdgeInsets.only(
                    bottom: MediaQuery.of(context).viewInsets.bottom),
                child: TextField(
                  decoration: InputDecoration(
                    hintText: 'adddrss'
                  ),
                  autofocus: true,
                  controller: _newMediaLinkAddressController,
                ),
              ),

              SizedBox(height: 10),
            ],
          ),
    ));

Please note that:

shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.vertical(top: Radius.circular(25.0))),

It's not required. It's just that I'm creating a rounded bottom sheet.

Update

If your BottomSheetModel is Column make sure you add mainAxisSize: MainAxisSize.min, otherwise the sheet will cover the whole screen.

回答2:

In Order to focus on the Keyboard in BottomSheet - Wrap TextField in Padding Widget as like Below e.g Code:

showModalBottomSheet(
              context: context,
              builder: (context) {
                return Container(
                  child: Padding(
                    padding: EdgeInsets.only(
                        bottom: MediaQuery.of(context).viewInsets.bottom),
                    child: TextField(
                      autofocus: true,
                    ),
                  ),
                );
              }); 

回答3:

Wrap the Form with a Scaffold widget, and then wrap the TextFormField with a SingleChildScrollView :

 return Container(
          height: screenHeight * .66,
          child: Scaffold(
             body: Form(
               key: _form,
               child: SingleChildScrollView(
                 child:TextFormField()
               )
              )
             )
           )

回答4:

My solution is:

• isScrollControlled: true,
• padding: MediaQuery.of(context).viewInsets
• use Wrap widget

showModalBottomSheet<void>(
  isScrollControlled: true,
  context: context,
  shape: RoundedRectangleBorder(
    borderRadius: BorderRadius.only(
        topLeft: Radius.circular(30.0),
        topRight: Radius.circular(30.0)),
  ),
  builder: (BuildContext context) {
    return Padding(
        padding: MediaQuery.of(context).viewInsets,
        child: Container(
            child: Wrap(
          children: <Widget>[
            TextField(
              decoration: InputDecoration(
                  border: InputBorder.none,
                  hintText: 'Enter a search term'),
            ),
            TextField(
              decoration: InputDecoration(
                  border: InputBorder.none,
                  hintText: 'Enter a search term'),
            ),
            TextField(
              decoration: InputDecoration(
                  border: InputBorder.none,
                  hintText: 'Enter a search term'),
            ),
            TextField(
              decoration: InputDecoration(
                  border: InputBorder.none,
                  hintText: 'Enter a search term'),
            )
          ],
        )));
  },
);

来源：https://stackoverflow.com/questions/53869078/how-to-move-bottomsheet-along-with-keyboard-which-has-textfieldautofocused-is-t