watchOS Development--Interface object __apple

1. Interface objects: Examples of wkinterface classes or subclasses;

2. The interface object is not a view;

3. Create interface objects;

"1" label (Labels)

1.WatchKit supports standard fonts and custom fonts;

2.Glance and notification interfaces do not support custom fonts;

3. You must use a custom font to:

(1) Include custom font files in WatchKit app and watchkit extension bundle;

(2) Add uiappfonts keyword in the info.plist file of WatchKit app;

Internationalized Text Code:
The 1.NSLocalizedString family's macro definition allows the program to automatically retrieve localized strings;

2. Format numeric values by Nsnumberformatter classes based on user locale and localization settings;

3. Format time by NSDateFormatter class according to user's locale and local;

Note: Internationalized applications, mainly consider how to layout the interface, so that labels or other text controls can be extended.

"2" Picture images

1.WKInterfaceImage class;

2.wkinterfacegroup,wkinterfacebutton,wkinterfacecontroller class;

3. Use images in PNG format whenever possible;

4.setwidth,setheight, so that the picture is displayed in the appropriate size.

5. Use image assets to manage pictures.

Picture caching:

1.addcachedimage:name or Addcachedimagewithdata:name methods to cache pictures;

2. Cache animation Picture: animatedimagewithimages:duration;

3. Use cached pictures:

(1) For the Wkinterfaceimage object, call the Setimagenamed method;

(2) for the Wkinterfacegroup,wkinterfacebutton object, call the Setbackgroudimagenamed method;

(3) Removecachedimagewithname: Or Removeallcachedimages method to clear the cache;

"3" Table (tables)

1. Use a table to display a list of dynamically changing data;

2.WatchKit through the Wkinterfacetable class to support a single list;

3. If the data is displayed in the table, the data should be completed by the data layout in advance by encoding;

4. Support Multiple lines of content display type;

5. can be rolled; '

6. May set the background or the picture;

7. Support user interaction;

Contents of the Configuration table:

1. Determine the number and type of rows according to the data to be displayed;

2, create lines with Setrowtype: or Setnumberofrow:withrowtype.

3.rowControllerAtIndex: Method traversal line;

4. Use row Controller object configuration row content;

"4" button (Buttons)

1. Create a button with the same width as the screen, and limit it to 2 buttons horizontally;

2. Multiple buttons are of the same height;

3. Use the default rounded corners. The standard button rounded angle is 6points.

"5" contextual menu (context Menus)

1. Contextual menus are optional, WatchKit displays menus on top of content;

2. Display up to 4 actions (action), each action consists of a title and a picture;

3. Each action is added to the menu in order from top to bottom, left to right;

4. Menu is not layered also can not scroll;

5. Can be designed or programmed to configure the menu;

Attention:

1. The current screen has only one menu;

2. Do not create an action can only affect the selected item or part of the interface;

3. Each action must have a picture and a label string. The picture is the background, the label string is limited to two lines;

Menu Picture:

1. The icon in the menu is a template picture, transparency determines the style of the picture, ignoring the color of the picture;

2. Menu picture to use PNG format. Do not use a jagged PNG format picture (interlaced PNG);

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