Flutter - Container onPressed?

Question

I have this container:

  new Container(
    width: 500.0,
    padding: new EdgeInsets.fromLTRB(20.0, 40.0, 20.0, 40.0),
    color: Colors.green,
    child: new Column(
      children: [
        new Text("Ableitungen"),
      ]
    ),
  ),

When the user clicks on the Container, I want an onPressed() method to be fired (like it can be done with IconButton for example). How can I achieve this behaviour with Container?

Answer 1

I guess you can use GestureDetector widget like this:

new GestureDetector(
        onTap: (){
          print("Container clicked");
        },
        child: new Container(
          width: 500.0,
          padding: new EdgeInsets.fromLTRB(20.0, 40.0, 20.0, 40.0),
          color: Colors.green,
          child: new Column(
              children: [
                new Text("Ableitungen"),
              ]
          ),
        )
    );

Answer 2

Don't use GestureDetector, it doesn't show ripple effect. Use InkWell instead.

InkWell(
  onTap: () {}, // Handle your callback
  child: Ink(height: 100, width: 100, color: Colors.blue),
)

Output:

Answer 3

The simplest solution is to wrap the Container in a GestureRecognizer, but consider using an InkWell or FlatButton if you are building a Material design app. These widgets will show a visual splash response when touched.

Answer 4

The container itself doesn't have any click event, so to do that there are two ways

1. InkWell widget
2. GestureDetector

In Flutter, InkWell is a material widget that responds to touch action.

InkWell(
    child: Container(......),
    onTap: () { 
        print("Click event on Container"); 
    },
);

GestureDetector is a widget that detects the gestures.

GestureDetector(
    onTap: () { 
        print("Click event on Container"); 
    },
    child: Container(.......),
)

Difference

InkWell is a material widget and it can show you a Ripple Effect whenever a touch was received.

GestureDetector is more general-purpose, not only for touch but also for other gestures.

Answer 5

Just wanted to add on to The Dumbfounds answer(accepted ans above)

If you are using GestureDetector or InkWell to handle the click of a group of icon and text, then use Icon widget instead of IconButton to display the icon as the onPressed method of IconButton will take over the onTap method of GestureDetector/InkWell and as a result the onTap then will only work if you click on the text.

Example -

@override
  Widget build(BuildContext context) {
    return Row(mainAxisSize: MainAxisSize.min, children: [
      GestureDetector(
        onTap: () {
          _toggleFavorite();
        },
        child: Row(
          children: [
            Container(
              padding: EdgeInsets.all(0.0),
              child: _isFavorited ? Icon(Icons.star, color: Colors.red[500]) : Icon(Icons.star_border),
            ),
            SizedBox(
              width: 18.0,
              child: Container(
                child: Text('$_favoriteCount'),
              ),
            )
          ],
        ),
      )
    ]);
  }
}

Answer 6

Heading

GestureDetector vs InkWell

You can use two widget

1) GestureDetector

    GestureDetector(

        onTap: (){
          print("Container clicked");
        },
        child: new Container(child: ...)          
    );

This widget, doesn't have any effect.

2) InkWell

    InkWell(

        child: Container(......),
        onTap: () { 
            print("Click event on Container"); 
        },
    );

This widget has animation effect.

Answer 7

User can make button of any widget using Inkwell and GestureDetector.

=====

InkWell(
    onTap: () { 
        print(""); 
    },
 child: Container(......),
);

======

GestureDetector(
    onTap: () { 
        print(""); 
    },
    child: Container(.......),
)

Answer 8

InkWell(
    child: Container(......),
    onTap: () { 
        print("Add your on tap event in this block"); 
    },
);

Use InkWell it will provide you a nice material ripple effect.