By Wei-Meng Lee
The excellent start line for iPhone and iPad app improvement with iOS 5
If you must improve apps for Apple's iPhone and iPad, first you want to understand how to exploit the tools--iPhone's new iOS five working process and SDK, and the hot xCode toolset that include it. This full-color publication is the right start line. starting builders, you'll get a superior creation to the recent xCode four and Objective-C and locate every little thing you must quick construct your first app. The publication completely covers the entire new iOS five good points, together with new multitasking, location-based providers, notification approach, cloud-based positive factors, and lots more and plenty more.* Written via bestselling Wrox writer, Wei-Meng Lee, this can be a fantastic e-book for starting builders* is helping keen builders speedy begin development apps for the iPhone, iPad, and iPod contact* Introduces iOS five, xCode four, Objective-C, and the fundamentals you must create your first Apple machine app* Covers a bunch of latest iOS five features, together with new multitasking, new location-based companies, and a brand new notification process* exhibits you ways to paintings with iOS 5's cloud-based positive aspects for on-line garage of song, images, and video
Full-color and entire of knowledge, Beginning iOS five software Development is the final word advisor for starting Apple developers.
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Extra info for Beginning iOS 5 Application Development
Of course, you can turn off the status bar programmatically to gain access to the full 960 × 640 resolution. Also, be mindful that users may rotate the device to display your application in landscape mode. You need to make provisions to your user interface so that applications can still work properly in landscape mode. NOTE Chapter 7 discusses how to handle screen rotations. The older iPhones (iPhone 3G/3GS) and the iPod touch have lower resolutions compared to the iPhone 4/4S. They have a resolution of 480 × 320 pixels, one quarter of the resolution of the iPhone 4.
Platform/Developer/Applications folder. Most of the time, you don’t need to launch the iOS Simulator directly — running (or debugging) your application in Xcode automatically brings up the iOS Simulator. Xcode installs the application on the iOS Simulator automatically. indd 4 05/12/11 1:38 PM Components of Xcode ❘ 5 FIGURE 1-5 THE IOS SIMULATOR IS NOT AN EMULATOR To understand the difference between a simulator and an emulator, keep in mind that a simulator tries to mimic the behavior of a real device.
However, if the statement is executed within the iPhone 4/4S, a point translates to two pixels. Thus, the preceding statement translates into the pixel (40,20), with a width of 560 pixels and a height of 100 pixels. indd 14 05/12/11 1:38 PM Summary ❘ 15 by the OS, which is very useful because it enables older applications to run and scale correctly without modifications on the iPhone 4/4S. The iPad has a pixel resolution of 1,024 × 768 at 132 ppi. Table 1-1 summarizes the screen resolutions for the various platforms.