Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.1k views
in Technique[技术] by (71.8m points)

dart - Flutter : Vertically center column

How to vertically center a column in Flutter? I have used widget "new Center". I have used widget "new Center", but it does not vertically center my column ? Any ideas would be helpful....

@override
Widget build(BuildContext context) {
  return Scaffold(
    appBar: AppBar(
      title: Text("Thank you"),
    ),
    body: new Center(
      child: new Column(
        children: <Widget>[
          new Padding(
            padding: new EdgeInsets.all(25.0),
            child: new AnimatedBuilder(
              animation: animationController,
              child: new Container(
                height: 175.0,
                width: 175.0,
                child: new Image.asset('assets/angry_face.png'),
              ),
              builder: (BuildContext context, Widget _widget) {
                return new Transform.rotate(
                  angle: animationController.value * 6.3,
                  child: _widget,
                );
              },
            ),
          ),
          new Text('We are glad we could serve you...', style: new TextStyle(
              fontSize: 16.0,
              fontWeight: FontWeight.w600,
              color: Colors.black87),),
          new Padding(padding: new EdgeInsets.symmetric(vertical: 5.0, horizontal: 0.0)),
          new Text('We appreciate your feedback ! !', style: new TextStyle(
              fontSize: 13.0,
              fontWeight: FontWeight.w200,
              color: Colors.black87),),
        ],
      ),
    ),
  );
}
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Solution as proposed by Aziz would be:

Column(
  mainAxisAlignment: MainAxisAlignment.center,
  crossAxisAlignment: CrossAxisAlignment.center,
  children: [
    //your widgets here...
  ],
)

It would not be in the exact center because of padding:

padding: EdgeInsets.all(25.0),

To make exactly center Column - at least in this case - you would need to remove padding.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...