How Do I Center Text Vertically and Horizontally in Flutter?

You can use TextAlign property of Text constructor.

Text("text", textAlign: TextAlign.center,)

I think a more flexible option would be to wrap the Text() with Align() like so:

Align(
  alignment: Alignment.center, // Align however you like (i.e .centerRight, centerLeft)
  child: Text("My Text"),
),

Using Center() seems to ignore TextAlign entirely on the Text widget. It will not align TextAlign.left or TextAlign.right if you try, it will remain in the center.

                       child: Align(
                          alignment: Alignment.center,
                          child: Text(
                            'Text here',
                            textAlign: TextAlign.center,                          
                          ),
                        ),

This produced the best result for me.

U need to use textAlign property on the Text widget. It produced the best results for me

Text(
  'Hi there',
   textAlign: TextAlign.center,                          
 )

If you are a intellij IDE user, you can use shortcut key Alt+Enter and then choose Wrap with Center and then add textAlign: TextAlign.center

THE TEXT TITLE MUST BE ALWAYS ON TOP.

wrong way:

  child: Center(
    child: Text(
      textAlign: TextAlign.center,
      "Hello World",
    ),
  ),

right way:

  child: Center(
    child: Text(
      "Hello World",
      textAlign: TextAlign.center,
    ),
  ),

Put the Text in a Center:

Container(
      height: 45,
      color: Colors.black,
      child: Center(
        child: Text(
            'test',
            style: TextStyle(color: Colors.white),
        ),
      ),
    );

Text element inside Center of SizedBox work much better way, below Sample code

Widget build(BuildContext context) {
    return RawMaterialButton(
      fillColor: Colors.green,
      splashColor: Colors.greenAccent,
      shape: new CircleBorder(),
      child: Padding(
        padding: EdgeInsets.all(10.0),
        child: Row(
          mainAxisSize: MainAxisSize.min,
          children: <Widget>[
            SizedBox(
              width: 100.0,
              height: 100.0,
              child: Center(
                child: Text(
                widget.buttonText,
                maxLines: 1,
                style: TextStyle(color: Colors.white)
              ),
              )
          )]
        ),
    ),
  onPressed: widget.onPressed
);
}

Enjoy coding 👨‍💻

Overview: I used the Flex widget to center text on my page using the MainAxisAlignment.center along the horizontal axis. I use the container padding to create a margin space around my text.

  Flex(
            direction: Axis.horizontal,
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
                Container(
                    padding: EdgeInsets.all(20),
                    child:
                        Text("No Records found", style: NoRecordFoundStyle))
  ])

To center items in a container user mainAxisAlignment: MainAxisAlignment.center,

     Container(
         child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
                children: const [
                   Align(
                        alignment: Alignment.center,
                              child: Text('Student Name',
                                  style: TextStyle(
                                      fontSize: 16,
                                      fontWeight: FontWeight.bold),
                                textAlign: TextAlign.left),
                         ),                
                     ]),
                )