Programming the iPhone User Experience phần 4 docx

Programming the iPhone User Experience docx

... from the user interface objects in UIKit. In other words, Foundation is the gateway to everythingnot explicitly part of the user interface. As you’ll see in this book, user experience programming ... about the holistic user experience. How can applications worktogether to create a complete toolset for a mobile user? The aspect of applications working together to provide a single, holistic experience ... that users see, click,and—in the case of Cocoa Touch—tilt, shake, or tap. User interfaces are a big part of user experience. They provide the face of your product, and often a bit more.For the...

Programming the iPhone User Experience ppt

... and the devices that run the iPhone OS.Chapter 2, The Mobile HIG, gives an introduction to the Human Interface Guidelinesand elaborates on the most important concepts in the iPhone user experience. Chapter ... record, let them know the outcome. Ifthey’re searching for records and the operation moves beyond a single pass through the event loop, let them know how the search is proceeding. While there is ... together to create a holistic user experience. Finally, this book is for readers who own and use the iPhone. To create an excellent iPhone application, a developer must have empathy for iPhone users....

Designing the Mobile User Experience phần 4 docx

... whichstates that the time to acquire a target is a function of the distance to the target and the size of the target. The further the target is away from the user s current position, the longer it ... to the experience at any time. Thereis also of course a market logic for providing mobile users with the features they typically associate with information devices.This is not to say that there ... masked. The user can readily hide the screen from onlookers, more easily than hiding which keys are beingpressed. Further, the difficulty of text entry makes password entrycostly to the user experience. ...

Designing the Mobile User Experience phần 7 docx

... openformats. The mobile application value chain includes the user, the devicein the user s hand, the technologies on the device, the connectivityto the web, services enhancing the connection, ... butshould have the same core user interface. The fact that users cannot pick up the device to use it will affecttheir comprehension of the application and their perception of the user experience. ... mapping all commands to the Menu softkey,including the first item command. The result to the user: the OK softkeyis labeled ‘OK’, and there is also an ‘OK’ in the menu. The first simplymanipulated...

PROGRAMMING AND CUSTOMIZING THE PIC MICROCONTROLLER 3rd phần 4 docx

... zeroed out (and become nops) and then areprogrammed into the PIC microcontroller. Before making the change, the programmerwill issue an error message at the start indicating that the PIC microcontroller ... btfss, goto, and call of the low-end and mid-range PIC microcontrollersalong with the compare and skip on equals (cpfseq), greater than (cpfsgt), and lessthan (cpfslt). The PIC1 8 also has the enhanced ... at the end of the application code simply because the reset and interrupt handler vectorsare at the “beginning” of the data space. Putting the subroutines after the mainline and interrupt handler...

Programming the iPhone User Experience phần 1 docx

... . . . . . . . 14 7Billboards 14 7Sleight of Hand 15 0Bullhorns 15 2App As OS 15 5Spin Zone 15 7 The Bouncer 15 7Gesture Hijacking 16 0Memory Lapse 16 1 The High Bar 16 3Sound Off 16 4Index . . ... 98Sliders 10 3Tables and Pickers 10 6Search Bars 10 9Segmented Controls 11 1Scrolling Controls 11 4Tables and Embedded Controls 12 0Passive Indicators 12 1Active Indicators and Control Accessories 12 28. ... Concepts 13 Provide One User Experience 13 Provide Seamless Interaction 15 Let the User Know What’s Going On 16 Use Progressive Enhancement 16 Consider Cooperative Single-Tasking 17 A Supplement to the...

Programming the iPhone User Experience phần 2 doc

... button. These concrete in-terfaces are outside the scope of Cocoa Touch programming, but are notable in the overall UX (user experience) of the devices.From the point of view of user experience ... nonconformance with the HIG. Break the rules at your own peril, andchoose your battles wisely without giving up on a compelling user experience. Provide One User Experience The launch of the iPhone SDK ... edges. There are veryfew buttons or switches, allowing users to focus on the display.ã The lighting (when enabled) adjusts to the user s environment, allowing the deviceto blend into the background...

Programming the iPhone User Experience phần 3 ppsx

... consider the most desirable user experience: the user is completing a task withoutfocusing fully on their mobile device. Think about a user walking down the street, oron the subway, using an iPhone ... encounter when creating new iPhone projects. The first is the simplest: the UIViewController. The next is the UITableViewController. The final view controller subclass is the UITabBarController.UIViewController ... the application focuses on becominga friendly part of the iPhone OS and of anticipated user experience. The ImageSearch application is created for users who want to search Google Images inthe...

Programming the iPhone User Experience phần 4 docx

... the change. Applecould then push the notification to related devices, with the result being that the iPhone OS could add a numeric badge graphic to the application icon on the Home screen. The numeric ... overHTTP.5. When the expensive, asynchronous HTTP request completes, the application dis-plays the result in place of the cached view. Undimming the user interface subtlyalerts the user that interaction ... represents the number of quick, repeated taps associated with the UITouch instance.timestamp The timestamp is the time when the touch was either created (when a finger touched the screen) or...

Programming the iPhone User Experience phần 5 ppt

... handled by the view hierarchy, the hitTest:withEvent: messageis sent to the topmost UIView in the view hierarchy that can handle the touch event. The top view then sends the pointInside:withEvent: ... require precision when users drag aview around the screen, you can improve the user experience by positioning the elementslightly above the touch instead of centering it under the touch:- (void)touchesMoved:(NSSet ... buttons, links (in browsers and the SMS application),and many other UIControl subclasses. They are also used by the iPhone OS to launchapplications. Users touch elements on the screen to communicate...

Programming the iPhone User Experience phần 6 docx

... between views animates the morespecific view in from the right, while the less specific view moves out toward the left.Moving back up the hierarchy animates the views in the other direction.Navigation ... responds to user interaction. The UIControl class is the foundation for all of the standard buttons, switches, andsliders. Figure 7 -6 shows the UIControl class tree.Figure 7 -6. The UIControl ... outside of the flip,though you needn’t necessarily avoid it. As with most user experience programming for Cocoa Touch, it’s best to stick to the known paths and perfect the nuances, but at the same...

Programming the iPhone User Experience phần 7 potx

... scrollRectToVisible:CGRectMake((320.0 * i), 0.0, 320.0, 422.0) animated:YES];}@endFigure 7- 17 shows the example running in the iPhone emulator.Figure 7- 17. Example use of segmented control for paginationStandard Control ... Dragging a fingeracross the screen slowly scrolls the content in the scrolling view in parallel. Quicklyflicking across the screen will throw the content in the direction of the swipe, and itwill ... toolkit.Scrolling Controls The iPhone handles scrolling in a very intuitive manner. The timing of animations and the touch and gesture recognition build muscle memory and acclimate users to the ideaof UI...

Programming the iPhone User Experience phần 8 docx

... indication of the object assigned to the cell. Users can getadditional information for each row by tapping the row. When a user taps the row, anevent is sent to the delegate of the table, which ... can use the Outbox meta-phor to address the natural separation of functionality: the user composes content, and the user transfers content. The two functions aren’t necessarily linked together, ... automatically handles the communication between the user interface and the delegate. (The availability of free implementations of design patterns like the delegatepattern is one of the benefits that...

Programming the iPhone User Experience phần 9 pps

... given the justificationthat it’s all in service to a better user experience. Figure 9- 9 shows the Shovel application, a client for Digg. The developers present userswith the option to open the ... controltaking the place of the button they are tapping.Figure 9- 5 shows the sleight of hand anti-pattern in the Facebook application. Tapping the “Photos of Toby” item shows the “Photos of ... screen. The “Toby”back button on the second screen transitions the user back to the first screen and swaps the back button for a Logout button. An extra tap on the top-left portion of the screencan...

Programming the iPhone User Experience phần 10 ppt

... assumes that the user is familiar with the purpose of the application and either has or knows how to attain credentials to use the application.Figure 9-12. The welcome screens for the LinkedIn ... disability.Sound Off The direct ancestor of both the iPhone and the iPod Touch is the iPod. Apple has takengreat care to ensure that both devices continue the legacy of the iPod by providing userswith ... and resumes playback at the last known point in the track. If the iPhone receives a text message while the user is listening to music, the SMS alert sound plays along with the current song. All...

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