First Knowledge UI

One, IOS6, 7, 8, 9 characteristics

1.ios7

iOS 7 is the biggest upgrade since iOS 3 to iOS 6, with a new icon interface design with hundreds of changes, including control center, Notification Center, new multitasking, and more. IOS 7 is a mobile and tablet operating system developed by Apple Inc. in the United States. Launched June 10, 2013 at Apple's global software developers annual meeting and scheduled for fall 2013.　　IOS 7 includes a redesigned user interface and some improvements to the functionality of the operating system. IOS 7 has a visual design that is completely different from the previous version in the user interface, and the application diagram becomes sharper, more planar, and in many placesIOS 7 DesignUsing a slimmer font, the previous object style (skeuomorphism) no longer appears in iOS 7. In addition, the IOS 7 screen with the effect of class 3D, the lock screen and desktop will have a effect, but if the device does not use the Retina screen (ipad 2 and the first generation of ipad mini), the effect may not be obvious. All built-in programs, unlock screens, and notification hubs have been redesigned. In addition, IOS 7 has added control center, which allows users to quickly control the switch of various system functions (including airplane mode, Bluetooth, wireless network and adjust screen brightness, flashlight, play or pause music, etc.).　　The multitasking (multitasking) feature has also been enhanced to support every application, as well as a new user interface when switching programs. In IOS 7, the elements that have been loved by people have been preserved, and the user experience has been optimized to make the whole system easier and more practical to use. In this way, what you need to do over and over again every day will become something you like to do every day. And with iOS 7 o'clock, you'll have a feeling that you can get started right away, so you don't need to get back to it.　　For example, the home screen is still the home screen, and the only change is that the space behind the retina display and display is more fully utilized, but you're using it the same way. IOS7 system-supported devices include iphone 4, iphone 4S, iphone 5, iphone 5S, iphone 5 C, ipad 2, the New ipad, ipad with Retina Display, ipad Air, ipad mi NI, IPad Mini 2 and ipod Touch (fifth generation), users need to upgrade itunes to 11.1 in advance before upgrading to install iOS 7 for their devices. According to media reports, Apple formally announced on September 29, 2014 to stop supporting the IOS7 system, and also shut down the IOS7 system downgrade Authentication service, has been upgraded IOS8 users, will not be able to continue to downgrade through itunes into a iOS7 system. This means that no matter you identify with the stability of the iOS8, there is no opportunity to downgrade the system now.

2.ios8

IOS 8 is a mobile operating system developed by Apple for the iphone, IPad, and IPod touch, and the official version is pushed to users September 17, 2014 Pacific Time. Support for iphone 4S, IPad 2, IPod Touch (fifth generation) and newer devices.

A The camera roll revived "Camera Roll" after IOS 8 was canceled, causing the Netizen's unanimous "crusade". So Apple is easy for iOS 8.1 to add this feature back, you can use the familiar photo app again. Two WiFi is effectively improving the WiFi performance of IOS 8 is a source of criticism, signal interruption, slow speed and other issues have been the Apple users crazy. So in the iOS 8.1 update, the WiFi feature has been improved, measured, whether the connection speed or stability has been greatly improved. Three icloud Photo Library icloud launches the "Photo Stream" feature, and later images you edit on your iPhone will automatically sync to icloud and sync with all your devices. It means that photos you change on your iphone or IPAD, all the devices under your account will see the same effect. But because this feature requires a large capacity, free space may not be enough! Four Apple Pay's long-awaited Apple Pay is finally coming to the front of everyone. But mainland Chinese users are temporarily unavailable, with news that Apple is negotiating with UnionPay and that the results will soon be known. Five The information feature enhances iOS 8.1 to make the connection between iOS devices stronger, and in other devices as well as the latest version of the system, iphone can send and receive text messages on ipad and Mac for information commonality.

3.ios9

IOS 9 is the mobile operating system officially launched by Apple in the United States on September 16, 2015. The IOS 9 system is more stable, more versatile, and more open than iOS8. IOS 9 has added more new features, including Smarter Siri, the new power-down mode. IOS 9 provides developers with 5,000 new APIs. December 9, 2015, Apple officially pushed iOS 9.2, the update content is very much, fix bug improve stability naturally needless to say, but also added a lot of new features, such as mail to increase the drop function can send large attachments, ibooks began to support 3D Touch, Apple "Hot Stories" in news and so on. 　　Memo Memo in iOS 9 makes it easy to make a checklist of things to do, add a photo, map, or URL link, or even draw a sketch [16]. The "public transport" view of the map map gives you public transportation information with directions and directions, and when you search the map, you'll see a list of categories including dining, shopping and entertainment. You can check these categories individually to see what's good around you. icloud Drive is built into IOS 9, allowing you to easily access any file stored in icloud directly from your home screen. You can easily search through the app to find the files you want, browse through all the files by date, name, or any tag you add to your MAC, and preview and organize your files in this app. Email iOS 9 brings new and powerful features to your email, so you can do more on your iOS device, or even tap into the idea. You can use the tagging feature to add drawings, comments, or signatures to photos and files in attachments, and easily add files saved in ICloud drive as attachments. Multitasking in iOS 9, you can open another app without leaving the app you're using. SuchMulti-task processing You can quickly browse the Web, reply to text messages, or jot down a memo, then slide them aside and back to the app you used earlier. Siri 　　 Ask Siri to search your photos and videos by date, location, and album name if you're viewing content from apps such as Safari, mail, or memo, and want to continue later, Siri can remind you that your search screen is now pre-recommended for contacts, apps, nearby places, and more. In addition, it is more active in every aspect, making many small things easier and easier  

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