Responsive columns widgets12/16/2023 , the child is required to fill the available space. Space the parent makes available during layout. If is non-zero, the determines whether the child fills the How a flexible child is inscribed into the available space. The signature of this stateless Widget is the following:Ĭlass BootstrapCol extends StatelessWidget this.child, Voilà, you now have all the basics to build your layout in a responsive manner.įinally, under some circumstances, it might also be useful to hide some parts of the layout, depending on the screen dimensions. ‘order-2 order-sm-2 offset-md-1 order-lg-1 order-xl-1’ will tell that to display the corresponding Column as follows: In order to achieve this, you can use the order-, which together with the notion of prefix will tell in which sequence order, the components will be displayed on the screen. Sometime, you also would like to change the sequence order of your columns, depending on the screen dimensions. ‘offset-0 offset-sm-1 offset-md-2 offset-lg-3 offset-xl-3’ will tell that your component to be pushed to the right of: Like for the dimensions, the offset also uses the same prefixes to give the rules depending on the screen dimensions. The usual gutter size is 30px, which says that each column leaves a horizontal space of 15px ( = gutter / 2) between each other.Īt time, it is useful to give a certain offset (in terms of number of columns) which moves the column to the right of a certain number of columns. lines 3-5: you provide a background colorĪ Gutter defines the horizontal padding that controls the space between each Column.line 2: flags the Container as a Fluid one (= full-width).You may then combine both types of Containers to obtain a background color that takes the whole screen width, then another Container to display its content in a “ centered” manner as follows: To allow this, a Container might be flagged as “ fluid". you want to display a background color or an image, that takes the whole screen width). In some circumstances, you do not want such a width limit (e.g. The container is then horizontally centered on the screen. The commonly used limits are the following: Notions of Fluid and Non-Fluid Containersīy default, a Container is limited in terms of width, depending on the browser window size. The following pseudo code illustrates the notion: The Container corresponds to a block that contains a series of Rows, each of which containing a series of Columns. Your layout is orchestrated around the additional 2 notions: Container and Row. ‘col-12 col-sm-12 col-md-6 col-lg-4 col-xl-3’ will tell that your component will occupy: Thanks to these prefixes, you may specify the width of your component, based on the dimensions of your browser window. Nowadays the ‘ xs’ prefix is no longer used and has been replaced by an empty prefix.
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