[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)
廣告
Just a Computer Graphics Studio & My Life
廣告
I am a graduate student specializing in Computer Graphics.
標籤雲
- teach
- ios
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- chat
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- weather
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- end banquet
- data
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- definition
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- illustrator
- route
- habit
- shoes
- bus
- delegate
- nutrition
- christmas
- beverage
- psnr
- taipei 101
- search
- messenger
- function
- style
HappyMan・迴響