Lesson 2

HIREVIETNAMESE

iPhone Training
Lesson 2

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Contents

1 iPhone UI Design Considerations

2 Application Layout

3 iPhone UI Element Overview

4 Example 2

5 Exercise 2

2


iPhone UI Design Considerations

 The iPhone is not a desktop system.

 The Apple iPhone is a powerful smart phone that is
being used to improve the productivity of user. To
design simple, successful iPhone app user interfaces,
keep in mind the unique attributes of the iPhone.

 Eat with it, sleep with it, drink with it, live with it.

3



 Small Screen
 Limit the number of controls

 Break a single complex app into two or more
apps with very different functions.

4



 One screen at a time

5



 One app at a time(iOS < 4)
 Save user-entered data immediately.

 Show the saved data the next time users
open the app.

6



 Hand/Finger Input
 UI Elements must be big enough to hit with a
finger.

 Finger tapping means the pointer can just
disappear. Rollover effects don’t work well.

 Multi-touch events

7



 No External Keyboard
 No physical keyboard on iPhone.

 On-screen keyboard appears when needed.

 Multi keyboard types are available.

8



 Device Orientation

9



 Device Orientation
 Applications are notified when device rotates portrait to landscape and
back.

 Can also find absolute orientation.

10



 No training
The strongest asset of the iPhone is its ease of use. The simple user
interface usually allows users to get their tasks done without training or
reading online Help.

Analyze your users, their needs and design a very simple, intuitive user
interface that allows users to operate your app without training or Help

11


Application Layout

 Tab Bar Control
Tab control always
visible

12


Application Layout

 Tab Bar Control
Use in:

 Applications with different models.

 Applications with different subtasks related to the overall app function.

Many standard icons are provided.

13


Application Layout

 Navigation Bars

14


Application Layout

 Navigation Bars
 Like navigating a web site.

 Start with high-level general view.

 “Back” buttons automatic.

 Changes are animated.

15


Application Layout

 Table Views

16


Application Layout

 Table Views
 Single column only.

 But custom cells can offer more flexibility.

 Can use multiple custom cell types in the same table.

17


Application Layout

 Toolbars

18


Application Layout

 Toolbars
 Provide quick access to common actions.

 Usually at the bottom in the iPhone Apps .

 Many standard icons are provided.

19


iPhone UI Element Overview

 Switch control
 iPhone version of a checkbox control.

 Change states on tap or drag.

20



 Segmented control
 iPhone version of a radio buttons.

21



 Pickers
 Another way to have users select
from a list of values.

 Can have multiple columns.

22



 Activity Indicators
 If you need to show one for very
long.

 The system provides standard
network activity indicator in status
bar.

23



 Alert Views
Use in:

 When user has more than one option for an action.

 When you need to confirm an action.

24


Example 2

25


Exercise 2

26

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