Flutter Tutorial | Flutter Container | Container in Flutter |How to use Container widget Flutter |#8

Flutter Container

The container in Flutter is a parent widget that can contain multiple child widgets and manage them efficiently through width, height, padding, background color, etc. It is a widget that combines common painting, positioning, and sizing of the child widgets. It is also a class to store one or more widgets and position them on the screen according to our needs. Generally, it is similar to a box for storing contents. It allows many attributes to the user for decorating its child widgets, such as using margin, which separates the container with other contents.

A container widget is same as tag in html. If this widget does not contain any child widget, it will fill the whole area on the screen automatically. Otherwise, it will wrap the child widget according to the specified height & width. It is to note that this widget cannot render directly without any parent widget. We can use Scaffold widget, Center widget, Padding widget, Row widget, or Column widget as its parent widget.

Container in Flutter
Container class in flutter is a convenience widget that combines common painting, positioning, and sizing of widgets. A Container class can be used to store one or more widgets and position it on the screen according to our convenience. Basically a container is like a box to store contents. A basic container element that stores a widget has a margin, which separates the present container with other contents. The total container can be given a border of different shapes, for example, rounded rectangles, etc. A container surrounds its child with padding and then applies additional constraints to the padded extent (incorporating the width and height as constraints, if either is non-null).

Flutter Container Widget
A convenience widget that combines common painting, positioning, and sizing widgets.
A container first surrounds the child with padding (inflated by any borders present in the decoration) and then applies additional constraints to the padded extent (incorporating the width and height as constraints, if either is non-null). The container is then surrounded by additional empty space described from the margin.
During painting, the container first applies the given transform, then paints the decoration to fill the padded extent, then it paints the child, and finally paints the foregroundDecoration, also filling the padded extent.
Containers with no children try to be as big as possible unless the incoming constraints are unbounded, in which case they try to be as small as possible. Containers with children size themselves to their children. The width, height, and constraints arguments to the constructor override this.
By default, containers return false for all hit tests. If the color property is specified, the hit testing is handled by ColoredBox, which always returns true. If the decoration or foregroundDecoration properties are specified, hit testing is handled by Decoration.hitTest.

Flutter Tutorial | Flutter Container | Container in Flutter |How to use Container widget Flutter |#8
Flutter Tutorial | Flutter Container | Container in Flutter |How to use Container widget Flutter |#8
Flutter Tutorial | Flutter Container | Container in Flutter |How to use Container widget Flutter |#8


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