Introduction To Flutter

Question 1

is not a language (like JavaScript, for example).

Answer 1

Flutter

Question 2

Flutter uses ___ for its language.

Answer 2

Dart

Question 3

Flutter is _________ framework that enables developers to build native apps that run on Android and iOS devices.

Answer 3

Google’s mobile SDK / UI

Question 4

Developers write code in a _______ that works on both
platforms.

Answer 4

single codebase

Question 5

Benefits of Using Flutter Apps Dev

Answer 5

High Productivity
High Quality
High Performance
It is Free and Open

Question 6

TRUE OR FALSE

Flutter was written for low productivity, to get apps out fast.

Answer 6

FALSE, high

Question 7

TRUE OR FALSE

You can change your code and hot reload the changes, without
any kind of delay.

Answer 7

TRUE

Question 8

_____ includes the UI Widgets you need.

Answer 8

Flutter

Question 9

Flutter works with most ____

Answer 9

IDEs

Question 10

The included _________ work seamlessly and conventionally
with the target platform. Scrolling, navigation, icons and fonts match
the target system.

Answer 10

Flutter UI Widgets

Question 11

When you write an Android app with the Flutter Widgets, it looks
like a normal Android app.

When you write an iOS app with the Flutter Widgets, it looks like a
normal iOS app.

A) 1st statement is true; 2nd statement is false.
B) 2nd statement is true; 1st statement is false.
C) Both statements are true.
D) Both statements are false.

Answer 11

C. Both statements are true.

Question 12

TRUE OR FALSE

The code you write in Flutter runs natively.

Answer 12

True

Question 13

Flutter is ___ and _____

Answer 13

Free, Open Source

Question 14

ENUMERATION

What are the 5 Software for App Dev

Answer 14

VS Studio
Flutter SDK
Dart Platform
Xcode Runtime
Android Emulator and iOS Emulator

Question 15

These are great for developers, enabling them to develop their code to run on multiple devices, see how they look on each device. Later on, you can use the real hardware for final pre-release testing.

Answer 15

Emulators

Question 16

To run the flutter app type

Answer 16

flutter run

Question 17

To run your flutter app, you must be ___ the project folder of your app

Answer 17

inside

Question 18

This loads your changed code into the Dart VM and restarts the application. This
is the safest thing to do and doesn’t take long.

Answer 18

Hot Restarting

Question 19

If you want to load your changed code into the Dart VM but you don’t want to
change the application state, you can do this. The result might be different
behavior vs a hot restart.

Answer 19

Hot Reloading

Question 20

If you are using ‘flutter’ run to run the app from the command line, you can use
the key __ to hot restart and the key __ to hot reload.

Answer 20

R or r

Question 21

Widgets are the ______ of
your UI.

Answer 21

Building Blocks

Question 22

Whenever we build a user interface in Flutter, it is composed of ___

Answer 22

Widgets

Question 23

Putting your widgets
together is called ____

Answer 23

Composition

Question 24

Think of a user interface as a

Answer 24

jigsaw

Question 25

Unlike a Jigsaw, a widget can contain other widgets, in a tree structure, a hierarchy. This is often called a ____

Answer 25

Widget Tree

Question 26

ENUMERATION

Four step design process

Answer 26

Import helper library from flutter to get content on the screen

Define a ‘main’ function to run when our apps starts

Create a new text widget to show some text on the screen

Take the widget and get it on the screen

Question 27

import ‘package:flutter/material.dart’;
is called ____

Answer 27

Import Statements

Question 28

ENUMERATION

Format Text Widget Using TextStyle

Answer 28

FontSize
FontWeight
Color

Question 29

is a widget to create widgets to design applications in Flutter

Answer 29

MaterialApp

Question 30

_____, on the other hand, a widget used to define a UI element respecting Material rules such as what elevation is, widget shape, and stuff.

Answer 30

Material

Question 31

A widget that displays its children in a vertical array.

Answer 31

Columns Widget

Question 32

A _______ 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).

Answer 32

Container