![]() ![]() ![]() Note the thinner thermometer (at the top), the pale translucent tab bar (at the bottom), and the way the card layout has been stretched to extend behind the status bar and the tab bar. On the left, how the app’s game screen looked under iOS 6 on the right, the very same project running under iOS 7. Here’s a screenshot showing what iOS 7 did to my Zotz app. Thus it is quite probable that a developer who rebuilds an iOS 6 app under iOS 7 will find that parts of the interface have been shifted and hidden behind something else. Even more surprising, navigation bars and toolbars are translucent by default, and the system tries to extend the interface behind them as well. The status bar is transparent, and an app’s interface extends underneath it and is partly obscured by it - so there mustn’t be anything at the top of the interface that the user needs to read or tap, as both are impossible. In addition, all apps are now full-screen apps. I don’t need to belabor the details, as by now they are notoriously familiar to all users of iOS 7: switches are smaller, thermometers are thinner, buttons are borderless, and so on. In part, this is because every built-in widget is drawn in a new way. (For my earlier surveys in this vein, see “ How iOS 6 Will Affect Developers - and You,” 25 September 2012, and “ How iOS 5 Will Affect Developers - and You,” 17 October 2011.)īars, Buttons, and Breakage - The most obvious effect of iOS 7 on any developer who rebuilds an app using the current version of Xcode is that it totally alters the look of the app. #Tweetbot 3 for android how to#Now that I’ve finished rewriting my technical book on how to write iOS apps (this time around, it got divided into two books, called “ iOS 7 Programming Fundamentals” and “ Programming iOS 7”), here are some of the major changes wrought by iOS 7, and how they are likely to influence developers - and hence, the interface and behaviors of the apps that those developers create.
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