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iOS Developer EssentialsView Controller & App Lifecycle

32 items

1

AppState Foreground Detection Cleanup

Code Quiz
2

AppState & Lifecycle Mapping Across Platforms

Quiz
3

Saving State on App Lifecycle

Code Quiz
4

App States and Transitions

Quiz
5

View Controller Lifecycle Cleanup

Code Quiz
6

Balancing View Controller Lifecycle Cleanup

Quiz
7

Detecting Backgrounding with AppState

Code Quiz
8

React Native AppState Backgrounding

Quiz
9

Wrong Method for Background Work

Code Quiz
10

Understanding the Inactive App State

Quiz
11

React Native AppState & Backgrounding

Slides / Video
12

React Native AppState Basics

Flashcard
13

App States and Background Transitions

Quiz
14

State Restoration and Cold Starts

Quiz
15

Background Task Ends Too Early

Code Quiz
16

State Restoration Key Mismatch Bug

Code Quiz
17

useEffect Cleanup in Mobile Apps

Slides / Video
18

useEffect Cleanup on Mobile

Flashcard
19

Process Death and State Restoration

Slides / Video
20

Cold vs Warm Start & State Restoration

Flashcard
21

App State Transitions

Flashcard
22

useFocusEffect Re-run Bug

Code Quiz
23

View Controller Focus & Cleanup

Quiz
24

App State Transitions Explained

Slides / Video
25

Component Lifecycle & Screen Focus

Slides / Video
26

UIViewController Lifecycle & Focus

Flashcard
27

Saving State on Background

Code Quiz
28

AppState Listener Cleanup Bug

Code Quiz
29

iOS App States Basics

Quiz
30

AppState & Component Lifecycle in RN

Quiz
31

AppState & Component Lifecycle in RN

Slides / Video
32

AppState & Component Lifecycle in RN

Flashcard
Quiz

Balancing View Controller Lifecycle Cleanup

Learn where to tear down work started when a view controller appears.

You start location updates and register for keyboard notifications in a view controller's viewWillAppear(_:). Where should you stop the updates and remove the observers so they don't keep running while the controller is off-screen?