Flutter 1

Question 1

advantages of flutter

Answer 1

1. flutter have a very large collection of liberties and software packages (dart have pub.dav) fairebase , http request, animations, state management
2. flutter need less testing
   3.fast dev and simple structure
3. high customization and extendibility
4. full control of widget and layout
   6.hot reload

Question 2

What is flutter?

Answer 2

flutter is a google sdk for crafting fast user experiences for mobile and web from a single code base
flutter work with existing code , and is free and open source
everything in flutter is a widget and flutter it self is widget

Question 3

what is widgets?

Answer 3

are basically user interface componenets used to create the user interface of the app

Question 4

what help us the concept of the widget in flutter?

Answer 4

this composability help us create use interface of any complexity

Question 5

what is Material Design?

Answer 5

material design is the desing system that google create and follow

Question 6

Flutter’s Material library ?

Answer 6

is a library that gives us access to many ready-made widgets that follow the material design made with google

Question 7

statelesswidget ?

Answer 7

it mean it not sotre any data or change it state over time

Question 8

build() ?

Answer 8

It returns ‘materialApp’ that act like the main container of your whole app :
title , them , home.

Question 9

scaffold

Answer 9

give you basic layout : appBar , body .

Question 10

widget categories?

Answer 10

1.platform specific widget
2. state mantenance widget
3. platform indepedent /basic widget
4.layout widget

Question 11

platform specific widget ?

Answer 11

1. materiel widget they are follow google material design
2. cupertino widgets follow appele ios design
   they give native look for android and ios

Question 12

state mantenance widget ?

Answer 12

they can change over time like: StatefulWidget
Widgets that manage and respond to data changes

Question 13

platfor-independent

Answer 13

they are used in all the platforms no matter what is the

Question 14

layout widget

Answer 14

It control the other widget how they layout: row, column, stack, and center..
They organize and arrange other widgets
They are separated to two single child widget and multichild widget

Question 15

single child layout widget?

Answer 15

Container
Center
Align
Expanded
Padding
SizedBox

Question 16

multi child layout widget?

Answer 16

row
clumn
listview
gridview
stack
table
flow

Question 17

elevated button

Answer 17

You want a clickable button with a default style
You need a regular button

Question 18

GestureDetector

Answer 18

You want to make any widget respond to gestures
You need more control (tap images, cards, custom shapes)