Simply pass an empty BoxConstrains to the constraints property and a padding of zero. IconButton( padding: EdgeInsets.zero, constraints: BoxConstraints(), ) You have to pass the empty constrains because, by default, the IconButton widget assumes a minimum size of 48px.
You will want to use the LayoutBuilder widget which will build at layout time and provides the parent widget’s constraints. The LayoutBuilder takes in a build() function which has the the standard BuildContext along with the BoxConstraints as parameters that can be used to help dynamically render widgets based on size. Let’s build a simple … Read more
You can do with little Trick: Suppose you have requirement of : ( Width,Height ) Wrap_content ,Wrap_content : //use this as child Wrap( children: <Widget>[*your_child*]) Match_parent,Match_parent: //use this as child Container( height: double.infinity, width: double.infinity,child:*your_child*) Match_parent,Wrap_content : //use this as child Row( mainAxisSize: MainAxisSize.max, children: <Widget>[*your_child*], ); Wrap_content ,Match_parent: //use this as child Column( mainAxisSize: … Read more
Scaffold( appBar: AppBar(), body: Column( children: <Widget>[ Row( children: <Widget>[ buildExpanded(), buildFlexible(), ], ), Row( children: <Widget>[ buildExpanded(), buildExpanded(), ], ), Row( children: <Widget>[ buildFlexible(), buildFlexible(), ], ), ], ), );
You can add the Text as a child to a Container that has a BoxDecoration with border property: Container( margin: const EdgeInsets.all(15.0), padding: const EdgeInsets.all(3.0), decoration: BoxDecoration( border: Border.all(color: Colors.blueAccent) ), child: Text(‘My Awesome Border’), )
I’ve got this problem too. My solution is use Expanded widget to expand remain space. Column( children: <Widget>[ Expanded( child: horizontalList, ) ], );
Definition: Invisible: The widget takes up physical space on the screen but is not visible to user. This can be achieved using Visibility widget. Gone: The widget doesn’t take up any physical space and is completely gone. This can be achieved using Visibility, if or if-else condition. Invisible example: Visibility( child: Text(“Invisible”), maintainSize: true, maintainAnimation: … Read more
The problem comes from your quote, which is incorrect. As you said, InheritedWidgets are, like other widgets, immutable. Therefore they don’t update. They are created anew. The thing is: InheritedWidget is just a simple widget that does nothing but holding data. It doesn’t have any logic of update or whatsoever. But, like any other widgets, … Read more
I want to shed some more light on the actual way of doing a Splash screen in Flutter. I followed a little bit the trace here and I saw that things aren’t looking so bad about the Splash Screen in Flutter. Maybe most of the devs (like me) are thinking that there isn’t a Splash … Read more
To get the size/position of a widget on screen, you can use GlobalKey to get its BuildContext to then find the RenderBox of that specific widget, which will contain its global position and rendered size. Just one thing to be careful of: That context may not exist if the widget is not rendered. Which can … Read more