With previous versions of iOS, if you left an App Store app it would shut down completely.
That means the entire app doesn't have to keep running, freeing up memory and lightening battery load, and even the thread will terminate when the upload is done.įast task switching deals with the perceptive speed that multitasking offers. There's another API for task completion so that, for example, if you're uploading a picture to Twitter and leave the app, it can register a thread to keep uploading the picture in the background while you do something else. That takes the online server out of the equation which is good for tasks that don't need additional information from the cloud, and so don't have to activate the radios. In addition to the existing push notification service from Apple's servers, which provide sound, badges, and alert popups for everything from IM to game challenges, iOS 4 adds local notifications so something like an alarm-clock app could register an alert that would sit in the iPhone in the background until the proper time, then activate.
#Skype for iphone 3g 4.1 full#
Why no iPhone 3G? Apple abjectly refuses to put their name on an implementation where hardware constrains software - see video recording last year - and that means iPhone 3G isn't up to their multitasking standards.Īs to how it works, instead of a traditional "leave full apps running in the background" approach, Apple instead chose to implement a more restricted but, they felt, better performing and power friendly solution involving 7 specific background API (application programming interfaces.) (At least for iPhone 4 and last year's iPhone 3GS).
#Skype for iphone 3g 4.1 android#
four years, many gripes, and stiffer Google Android competition than later, background multitasking comes to App Store apps. While Apple's built-in apps (like iPod, Mail, etc.) have had background multitasking since 1.0. (We're not counting getting a resolution bump for iPhone 4 Retina Display as a functional change.) System-wide enhancements Spell check Calculator: Upgraded back in 2.0 for landscape scientific mode, all Calculator gets this time is a slight icon tweak towards the red.Clock: With nothing but a lap feature added last time, we lose the "but" and keep the "nothing" for iOS 4.Voice Memo: Introduced in iPhone 3.0, it looks pretty much the same in iOS 4.
#Skype for iphone 3g 4.1 update#
Not even a Calendar-style icon update to show current local weather. Still no HTC TouchFlo 3D style animations, no landscape mode with more/different information.
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