flutter

Question 1

ctrl + shift + p

Answer 1

flutter

Question 2

declaration variables

Answer 2

int edad = 25;
double altura = 1.75;
String nombre = “Juan”;
bool esMayor = true;

inferencia de tipo
var altura = 1.75;

Question 3

diference between: final // const
both don’ t changes once declared

Answer 3

final: at runtime
final hora = DateTime.now().hour;
final nombre = obtenerNombreUsuario();

const: in the start
const pi = 3.14159;
const NOMBRE_APP = “Mi Aplicación”;

Answer 4

$count = 100
print(‘$count’)

Question 5

flutter: select devices

Question 6

widgets => legos

Question 7

types of widgets

Answer 7

statelessWidgets
without state

final name=’western’

statefullWidgets
with state

String nombre=’dress up ‘

Question 8

trees of widgets

Answer 8

only begin in a simple widget

tree of vectors

Question 9

where is main

Answer 9

my_carptet/lib/main.dart

Question 10

hello world

Answer 10

example 1

class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Text(‘Hello World!’),
);
}
}

example 2

class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Center(
child: Text(‘Hello, World!’),
)
);
}
}

Question 11

debugger (di-ba-guer) // depurador

Question 12

modify widget

Answer 12

ctrol + .

Question 13

scaffold (escafolf => andamio)

Question 14

if have more than => 2 CHILDREN

Answer 14

you should use => COLUM