Android and IOS UI Development (Android 5.0 and iOS 9.0)

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Transcript of Android and IOS UI Development (Android 5.0 and iOS 9.0)

  1. 1. UI Smartphone Programming (CPE 490/590) Michael T. Shrove
  2. 2. IOS
  3. 3. Project Templates SingleView Project Empty Project Tabbed Project Master-Detail Project Page-Based Project Game
  4. 4. Empty Do not use!!!!!!! Does not come with anything pre-created.
  5. 5. Single View Application Used to start a simple project Usually only has one view at start. You can use this to create any other project template.
  6. 6. TabBar Application
  7. 7. TabBar Controller You use tab bar controller to organize your app into one or more distinct modes of operation. The view hierarchy of a tab bar controller is self contained. It is composed of views that the tab bar controller manages directly and views that are managed by content view controllers you provide. Each content view controller manages a distinct view hierarchy, and the tab bar controller coordinates the navigation between the view hierarchies.
  8. 8. TabBar Items
  9. 9. Creating a Tab Bar Interface Using a Storyboard If you are creating a new Xcode project, the Tabbed Application template gives you a tab bar controller in the storyboard, set as the first scene. To create a tab bar controller in a storyboard, do the following: Drag a tab bar controller from the library. Interface Builder creates a tab bar controller and two view controllers, and it creates relationships between them. These relationships identify each of the newly created view controllers as the view controller for one tab of the tab bar controller. Display it as the first view controller by selecting the option Is Initial View Controller in the Attributes inspector (or present the view controller in your user interface in another way.)
  10. 10. Example of Creating TabBar Controller
  11. 11. Master-Detail (SplitViewController) The UISplitViewController class is a container view controller that manages two panes of information. The first pane has a fixed width of 320 points and a height that matches the visible window height. The second pane fills the remaining space.
  12. 12. Master-Detail (SplitViewController)
  13. 13. Page-Based You use a page view controller to present content in a page-by-page manner. A page view controller manages a self-contained view hierarchy. The parent view of this hierarchy is managed by the page view controller, and the child views are managed by the content view controllers that you provide.
  14. 14. Page-Based
  15. 15. Game (OpenGL) Project The Open Graphics Library (OpenGL) is used for visualizing 2D and 3D data. It is a multipurpose open-standard graphics library that supports applications for 2D and 3D digital content creation, mechanical and architectural design, virtual prototyping, flight simulation, video games, and more. OpenGL for Embedded Systems (OpenGL ES) is a simplified version of OpenGL that eliminates redundant functionality to provide a library that is both easier to learn and easier to implement in mobile graphics hardware.
  16. 16. Navigation Controller A navigation controller manages a stack of view controllers to provide a drill-down interface for hierarchical content. The view hierarchy of a navigation controller is self contained. It is composed of views that the navigation controller manages directly and views that are managed by content view controllers you provide. Each content view controller manages a distinct view hierarchy, and the navigation controller coordinates the navigation between these view hierarchies.
  17. 17. Navigation Controller
  18. 18. Objects of Navigation Interface A navigation controller uses several objects to implement the navigation interface. You are responsible for providing some of these objects and the rest are created by the navigation controller itself. Specifically, you are responsible for providing the view controllers with the content you want to present. If you want to respond to notifications from the navigation controller, you can also provide a delegate object. The navigation controller creates the viewssuch as the navigation bar and toolbarthat are used for the navigation interface, and it is responsible for managing those views.
  19. 19. Objects Managed by NC
  20. 20. Creating a Navigation Interface Using a Storyboard If you are creating a new Xcode project, the Master-Detail Application template gives you a navigation controller in the storyboard, set as the first scene. To create a navigation controller in a storyboard, do the following: Drag a navigation controller from the library. Interface Builder creates a navigation controller and a view controller, and it creates a relationship between them. This relationship identifies the newly created view controller as the root view controller of the navigation controller. Display it as the first view controller by selecting the option Is Initial View Controller in the Attributes inspector (or present the view controller in your user interface in another way.)
  21. 21. Modifying the Navigation Stack You are responsible for creating the objects that reside on the navigation stack. When initializing a navigation controller object, you must provide a content view controller to display the root content of your data hierarchy. You can add or remove view controllers programmatically or in response to user interactions. The navigation controller class provides several options for managing the contents of the navigation stack. These options cover the various scenarios you are likely to encounter in your app.
  22. 22. Modifying the NC Stack Scenario Description Display the next level of hierarchical data. When the user selects an item displayed by the topmost view controller, you can use a segue or the pushViewController:animated: method to push a new view controller onto the navigation stack. The new view controller is responsible for presenting the contents of the selected item. Back up one level in the hierarchy. The navigation controller usually provides a back button to remove the topmost view controller from the stack and return to the previous screen. You can also remove the topmost view controller programmatically using the popViewControllerAnimated: method. Return the user to the root view controller. To return to the top of your navigation interface, use the popToRootViewControllerAnimated: method. This method removes all but the root view controller from the navigation stack.
  23. 23. Navigation Bar A navigation bar is a view that manages the controls in a navigation interface, and it takes on a special role when managed by a navigation controller object. To ensure consistency, and to reduce the amount of work needed to build navigation interfaces, each navigation controller object creates its own navigation bar and takes on most of the responsibility for managing that bars content. As needed, the navigation controller interacts with other objects (like your content view controllers) to help in this process.
  24. 24. Items on Navigation Bar Position Property Description Left backBarButtonItem leftBarButtonItem A Back button to the left position is by default. To get the default Back button, use backBarButtonItem property. To assign a custom button to the left position, and replace the default Back button, assign a UIBarButtonItem object to the leftBarButtonItem property. Center titleView The navigation controller displays a custom view by default. You can replace this view with your own custom view. Right rightBarButtonItem This position is empty by default. It is used to place buttons for editing/modifying the current screen. You can place custom views here by using UIBarButtonItem object.
  25. 25. Navigation Bar Structure
  26. 26. TableView Controller Table views are versatile user interface objects frequently found in iOS apps. A table view presents data in a scrollable list of multiple rows that may be divided into sections. Table views have many purposes: To let users navigate through hierarchically structured data To present an indexed list of items To display detail information and controls in visually distinct groupings To present a selectable list of options
  27. 27. TableViewController Information A table view is an instance of the UITableView class in one of two basic styles, plain or grouped. A plain table view is an unbroken list; a grouped table view has visually distinct sections. A table view has a data source and might have a delegate. The data source object provides the data for populating the sections and rows of the table view. The delegate object customizes its appearance and behavior.
  28. 28. TableView Cells A table view draws its visible rows using cellsthat is, UITableViewCell objects. Cells are views that can display text, images, or other kinds of content. Two Types of Cell Content: 1. Static cells: Use static cells to design a table with a fixed number of rows, each with its own layout. Use static cells when you know what the table looks like at design time, regardless of the specific information it displays. 2. Dynamic prototypes: Use dynamic prototypes to design one cell and then use it as the template for other cells in the table. Use a dynamic prototype when multiple cells in a table should use the same layout to display information. Dynamic prototype content is managed by the data source at runtime, with an arbitrary number of cells.
  29. 29. Populating a Dynamic TableView w/ Data Just after a table view object is created, it receives a reloadData message, which tells it to start querying the data source and delegate for the information it needs for the sections and rows it displays. The table view immediately asks the data source for its logical dimensionsthat is, the number of sections and the number of rows in ea