DART

flutter textbutton.icon

TextButton.icon(
            icon: Icon(Icons.camera),
            label: Text('Take A Photo'),
            onPressed: () {},
          )

flutter button with icon

ElevatedButton.icon(
          onPressed: () {},
          icon: Icon(Icons.email),
          label: Text("Contact me"),
          style: ElevatedButton.styleFrom(
            textStyle: TextStyle(fontSize: 15),
          ),
        ),

flutter iconbutton

IconButton(
            icon: Icon(
              Icons.directions_transit,
            ),
            onPressed: () {},
          ),

flutter text with icon

Flutter has WidgetSpan() to add a widget inside the RichText().

Example use:

RichText(
  text: TextSpan(
    children: [
      TextSpan(
        text: "Click ",
      ),
      WidgetSpan(
        child: Icon(Icons.add, size: 14),
      ),
      TextSpan(
        text: " to add",
      ),
    ],
  ),
)

Above code will produce:

Click + to add

You can treat the child of WidgetSpan like the usual widget.

flutter button with icon and text

ElevatedButton.icon(
              icon: Icon(Icons.home), 
              label: Text('ElevatedButton'),
              onPressed: () {},
            ),