Flutter example

In the “Hello Flutter” code above, MyApp is a widget created by us which will build the screen layout . Every custom widget has a build function which returns a Widget.

It allows specializations of classes . List is a list that can contain any value (if no type parameter is passed dynamic is used by default). List<int> is a list that only allows integer values and null`. You can add such Type parameters to your custom classes as well.

It allows specializations of classes . List is a list that can contain any value (if no type parameter is passed dynamic is used by default). List<int> is a list that only allows integer values and null`. You can add such Type parameters to your custom classes as well.