[iOS] 判斷App在前景或背景
收到推播時有兩種狀況：
- 前景 (Foreground)
- 背景 (Background)
Just My Life & My Work
標籤雲
- teach
- ios
- illustration
- food
- app
- record
- travel
- life
- chart
- chat
- tool
- work
- restaurant
- service
- photos
- experience
- relationship
- opencv
- technique
- problem
- xcode
- statistics
- health
- activity
- comparison
- design
- information
- exercise
- accessory
- company
- love
- software
- apple
- art
- iphone
- platform
- animation
- book
- map
- user interface
- bike
- marriage
- jog
- device
- article
- photography
- environment
- movies
- memory
- thought
- game
- project
- story
- video
- development
- mrt
- taipei
- taiwan
- Flutter
- festival
- career
- sport
- transportation
- opengl
- image
- research
- ipad
- open source
- youtube
- blender
- notification
- motocycle
- objective c
- income
- wealth
- image processing
- achievement
- glsl
- lecture
- apple watch
- secret
- 財富
- observation
- music
- macbook
- 秘密
- paper
- friend
- start-up
- business
- practice
- file
- product
- user experience
- money
- competition
- experiment
- library
- all you can eat
- gift
- course
- movie
- line
- photo
- programming
- song
- mountain
- trend
- quotation
- birthday
- technology
- definition
- weather
- network
- hotel
- team
- japan
- customization
- internet
- wifi
- mac os x
- debug
- truth
- swift
- android
- coffee
- camera
- install
- time
- job
- performance
- process
- framework
- repair
- Ionic
- hamburger
- celebration
- recall
- architecture
- report
- git
- version
- typhoon
- review
- introduction
- track
- history
- flow
- lyrics
- crash
- breakfast
- function
- c/c++
- salary
- growth
- bluetooth
- 工作
- cryptocurrency
- shop
- notebook
- face detection
- language
- web
- svm
- friendship
- reunion
- brand
- end banquet
- scenery
- group
- media
- mission
- certificate
- election
- 詐騙
- 日本
- tone mapping
- stylization
- firework
- future
- sleep
- learn
- event
- advertisement
- screen
- color space
- photograph
- hong kong
- profession
- wwdc
- role
- news
- holiday
- convenience store
- flowchart
- communication
- wedding
- cocoapods
- rule
- 人生大挑戰
- culture
- flower
- buffet
- photoimpact
- plan
- family
- bbq
- smart phone
- death
- github
- engineer
- korea
- setting
- security
- anniversary
- message
- investment
- banquet
- hike
- google map
- colleague
- marathon
- 新冠肺炎
- covid-19
- 加密貨幣
- 投資理財
- high dynamic range
- algorithm
- sex
- conference
- enterprise
- night market
- concept
- attitude
- itunes
- habit
- bus
- rgb
- park
- value
- api
- specification
- application
- management
- name
- cartoon
- boss
HappyMan・迴響