Flutter：向上移动对话框以为软键盘腾出空间？

Question

有没有办法向上移动对话框（在我的例子中是 AlertDialog）以便在软键盘可见时为它腾出空间？

Answer 1

这是一个已知错误：https://github.com/flutter/flutter/issues/7032

如果有帮助，该错误中有一个解决方法。

Answer 2

试试这个..

return SingleChildScrollView(
                padding: EdgeInsets.only(top: yourFocus.hasFocus ? 
                        MediaQuery.of(context).size.height / 2 - 250 // adjust values according to your need
                        : MediaQuery.of(context).size.height / 2 - 130),// adjust values according to your need
                child: AlertDialog(
                    title: Text("your Alert header text"),
                    content: TextField(
                             focusNode: yourFocus,
                             controller: yourTextController,
                             decoration: InputDecoration.collapsed(
                                        hintText: "your hint text."),
                             ),
                    actions: <Widget>[
                      FlatButton(
                          child: Text("Your button Title"),
                          onPressed: () {
                           yourFunction();
                          })
                    ]));

Answer 3

添加这个边距 margin: MediaQuery.of(context).viewInsets, ，它在自定义警报对话框中对我有用。

Answer 4

这是我的回答：

使用 Padding 小部件包装您的对话框。 然后给出 属性

padding: EdgeInsets.only( bottom: MediaQuery.of(context).viewInsets.bottom),

Padding(
          padding: EdgeInsets.only(
          bottom: MediaQuery.of(context).viewInsets.bottom), 
          child: Center(
            child: Material(
              color: Colors.white,
              child: ScaleTransition(
                scale: scaleAnimation,
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    Container(
                      margin: EdgeInsets.all(20.0),
                      padding: EdgeInsets.all(15.0),
                      decoration: ShapeDecoration(
                          color: Colors.transparent,
                          shape: RoundedRectangleBorder(
                              borderRadius: BorderRadius.circular(15.0))),
                        child: Column(
                          children: <Widget>[
                            Padding(
                              padding: const EdgeInsets.only(
                              top: 30.0, left: 20.0, right: 20.0),
                              child: Text(
                            "Masukkan password akun anda",
                            style: TextStyle(color: Colors.black87, fontSize: 16.0),
                              ),
                            ),
                            Padding(
                            padding: const EdgeInsets.all(5),
                            child: TextFormField(
                              decoration: InputDecoration(
                                border: OutlineInputBorder(
                                  borderSide: BorderSide(
                                    width: 1
                                  ),
                                  borderRadius: BorderRadius.circular(5)
                                ),
                                contentPadding: EdgeInsets.symmetric(horizontal:10,vertical:5)
                              ),
                              keyboardType: TextInputType.text,
                              obscureText: true,
                              style: TextStyle(
                                fontSize: 22,
                                letterSpacing: 1
                              ),
                            ),
                            ),
                            Row(
                              mainAxisAlignment: MainAxisAlignment.center,
                              children: <Widget>[
                            Padding(
                              padding: const EdgeInsets.all(10.0),
                              child: ButtonTheme(
                                  height: 35.0,
                                  minWidth: 110.0,
                                  child: RaisedButton(
                                    color: Colors.green,
                                    shape: RoundedRectangleBorder(
                                        borderRadius: BorderRadius.circular(5.0)),
                                    splashColor: Colors.white.withAlpha(40),
                                    child: Text(
                                      'OK',
                                      textAlign: TextAlign.center,
                                      style: TextStyle(
                                          color: Colors.white,
                                          fontWeight: FontWeight.bold,
                                          fontSize: 13.0),
                                    ),
                                    onPressed: () {
                                      Navigator.pop(context);
                                      widget.nextPage();
                                    },
                                  )),
                            ),
                            Padding(
                              padding: const EdgeInsets.only(
                                  left: 20.0, right: 10.0, top: 10.0, bottom: 10.0),
                              child:  ButtonTheme(
                                  height: 35.0,
                                  minWidth: 110.0,
                                  child: RaisedButton(
                                    color: Colors.red[700],
                                    shape: RoundedRectangleBorder(
                                        borderRadius: BorderRadius.circular(5.0)),
                                    splashColor: Colors.white.withAlpha(40),
                                    child: Text(
                                      'Batal',
                                      textAlign: TextAlign.center,
                                      style: TextStyle(
                                          color: Colors.white,
                                          fontWeight: FontWeight.bold,
                                          fontSize: 13.0),
                                    ),
                                    onPressed: () {
                                      setState(() {
                                        Navigator.pop(context);
                                      });
                                    },
                                  ))
                            ),
                              ],
                            )
                          ],
                        )),
                  ],
                ),
              ),
            ),
          ),
        )