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如何设计颤振中的警报对话动作

alertdialog flutter dart

8

MeLean · 技术社区 · 6 年前

我使用此方法显示警报对话框:

提交(message){
如果(message.isnotempty){
显示对话框(
上下文:上下文,
barrierdismissible:错误,
生成器:(BuildContext上下文){
返回警报对话框(
标题:中心(子级:文本(“警报”)),
内容:行(
mainaxisalignment:mainaxisalignment.center,
十字轴定位:十字轴定位.center,
子项:<widget>。[
展开(
子级:文本(
消息,
textAlign:textAlign.center,
样式:textstyle(
颜色:颜色。红色,

)
)
)
,
)
操作:<widget>。[
扁平按钮(
子:文本(“取消”),
按下时:(){
navigator.of(context.pop();
}
扁平按钮(
子:文本(“确定”),
按下时:(){
_ inputExtController.clear();
navigator.of(context.pop();
})
,
;
}
;
}

4 回复 | 直到 6 年前

1

9

Bostrot 6 年前

AlertDialog ButtonBar widget alignment: MainAxisAlignment.spaceBetween this answer

actions Row RaisedButtons

Row (
    mainAxisAlignment: MainAxisAlignment.spaceBetween,
    children: <Widget>[
        RaisedButton(), // button 1
        RaisedButton(), // button 2
    ]
)

Column content

2

3

Bostrot 6 年前

_onSubmit(message) {
    if (message.isNotEmpty) {
      showDialog(
        context: context,
        barrierDismissible: false,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Center(child: Text('Alert')),
            content: Row(
              mainAxisAlignment: MainAxisAlignment.center,
              crossAxisAlignment: CrossAxisAlignment.center,
              children : <Widget>[
                Expanded(
                  child: Text(
                    message,
                    textAlign: TextAlign.center,
                    style: TextStyle(
                      color: Colors.red,

                    ),
                  ),
                ),

         FlatButton(
                  child: Text('Cancel'),
                  onPressed: () {
                    Navigator.of(context).pop();
                  }),
              FlatButton(
                  child: Text('Ok'),
                  onPressed: () {
                    _inputTextController.clear();
                    Navigator.of(context).pop();
                  })
              ],
            ),
          );
        },
      );
    }
  }

3

Jack Sun 6 年前

showDialog(
              context: context,
              barrierDismissible: false,
              builder: (BuildContext context) {
                return AlertDialog(
                  title: Center(child: Text('Alert')),
                  content: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: <Widget>[
                      Container(
                        child: Text(
                          "message",
                          textAlign: TextAlign.center,
                          style: TextStyle(
                            color: Colors.red,
                          ),
                        ),
                      ),
                      Row(
                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
                        children: <Widget>[
                          FlatButton(
                              child: Text('Yes'),
                              onPressed: () {
                                Navigator.of(context).pop();
                              }),
                          FlatButton(
                              child: Text('No'),
                              onPressed: () {
                                Navigator.of(context).pop();
                              })
                        ])
                    ],
                  ),
                );
              });

4

0

ibrahimdevs 6 年前

RFlutter Alert

var alertStyle = AlertStyle(
    animationType: AnimationType.fromTop,
    isCloseButton: false,
    isOverlayTapDismiss: false,
    descStyle: TextStyle(fontWeight: FontWeight.bold),
    animationDuration: Duration(milliseconds: 400),
    alertBorder: RoundedRectangleBorder(
    borderRadius: BorderRadius.circular(0.0),
    side: BorderSide(
        color: Colors.grey,
    ),
    ),
    titleStyle: TextStyle(
    color: Colors.red,
    ),
);

Alert(
    context: context,
    style: alertStyle,
    type: AlertType.info,
    title: "RFLUTTER ALERT",
    desc: "Flutter is more awesome with RFlutter Alert.",
    buttons: [
    DialogButton(
        child: Text(
        "COOL",
        style: TextStyle(color: Colors.white, fontSize: 20),
        ),
        onPressed: () => Navigator.pop(context),
        color: Color.fromRGBO(0, 179, 134, 1.0),
        radius: BorderRadius.circular(0.0),
    ),
    ],
).show();