1，如何检测应用是第一次登陆启动
2，新手引导视图控制器我们使用UIScrollView
3，为适应不同分辨率，需要设计几套不同尺寸的图
iOS图片资源的命名规则是：
basename + screen size modifier + urischeme + orientation + scale + device + .ext
basename：文件名
screen size modifier：屏幕尺寸修饰符（iPhone5出现后才有，如 -568h）
urischeme：标识URI方案的字符串（一般情况不需要关心）
orientation：屏幕方向（横屏为-Landscape，竖屏为-Portrait）
scale：缩放尺寸（普通屏不需要，Retina屏为@2x，iPhone6后多了个@3x）
device：设备类型（~ipad表示供iPad使用）
.ext：文件扩展名（可以是png或其他格式）
4，效果图如下：
5，文件结构如下：
6，入口类：AppDelegate.swift
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@H_502_130@
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import
UIKit
@UIApplicationMain
class
AppDelegate
:
UIResponder
,
UIApplicationDelegate
{
var
window:
UIWindow
?
func
application(application:
UIApplication
didFinishLaunchingWithOptions launchOptions: [
NSObject
:
AnyObject
]?) ->
Bool
{
// Override point for customization after application launch.
//增加标识，用于判断是否是第一次启动应用...
if
(!(
NSUserDefaults
.standardUserDefaults().boolForKey(
"everLaunched"
))) {
.standardUserDefaults().setBool(
true
)
guideViewController =
GuideViewController
()
self
.window!.rootViewController=guideViewController;
println
(
"guideview launched!"
)
}
return
true
}
applicationWillResignActive(application:
) {
}
applicationDidEnterBackground(application:
) {
}
applicationWillEnterForeground(application:
) {
}
applicationDidBecomeActive(application:
) {
}
applicationWillTerminate(application:
) {
}
}
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7，向导页面：GuideViewController.swift
UIViewController
UIScrollViewDelegate
numOfPages = 3
viewDidLoad()
{
frame =
.view.bounds
//scrollView的初始化
scrollView=
UIScrollView
()
scrollView.frame=
.view.bounds
scrollView.delegate =
self
scrollView.contentSize=
CGSizeMake
(frame.size.width*
CGFloat
(numOfPages),frame.size.height)
"\(frame.size.width*CGFloat(numOfPages)),\(frame.size.height)"
scrollView.pagingEnabled=
true
scrollView.showsHorizontalScrollIndicator=
false
scrollView.showsVerticalScrollIndicator=
false
scrollView.scrollsToTop=
false
for
i
in
0..<numOfPages{
imgfile =
"jianjie\(Int(i+1)).png"
(imgfile)
image =
UIImage
(named:
"\(imgfile)"
)
imgView =
UIImageView
(image: image)
imgView.frame=
CGRectMake
(i),monospace!important; min-height:inherit!important">(0),
frame.size.width,frame.size.height)
scrollView.addSubview(imgView)
}
scrollView.contentOffset =
CGPointZero
.view.addSubview(scrollView)
}
scrollViewDidScroll(scrollView:
!)
{
"scrolled:\(scrollView.contentOffset)"
)
twidth =
(numOfPages-1) *
.view.bounds.size.width
(scrollView.contentOffset.x > twidth)
{
mainStoryboard =
UIStoryboard
(name:
"Main"
nil
)
viewController = mainStoryboard.instantiateInitialViewController()
as
UIViewController
.presentViewController(viewController,animated:
)
}
}
}
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