@@ -30,26 +30,85 @@ class CycleBannerTestViewController: UIViewController, CycleBannerViewDelegate,
3030
3131 self . view. backgroundColor = UIColor . white
3232
33- cycleBannerView = CycleBannerView ( frame: . zero )
33+ cycleBannerView = CycleBannerView ( frame: self . view . bounds )
3434 cycleBannerView. delegate = self
3535 cycleBannerView. itemSize = CGSize ( width: 300 , height: 180 )
36- cycleBannerView. itemHeaderWidth = 10
37- cycleBannerView. itemFooterWidth = 10
36+ cycleBannerView. itemHeaderWidth = 0
37+ cycleBannerView. itemFooterWidth = 0
3838 cycleBannerView. scrollView. backgroundColor = UIColor . gray
3939 cycleBannerView. translatesAutoresizingMaskIntoConstraints = false
4040 self . view. addSubview ( cycleBannerView)
4141
4242 let bannerTop = NSLayoutConstraint ( item: cycleBannerView, attribute: . top, relatedBy: . equal, toItem: self . view, attribute: . top, multiplier: 1 , constant: 100 )
4343 let bannerLeft = NSLayoutConstraint ( item: cycleBannerView, attribute: . left, relatedBy: . equal, toItem: self . view, attribute: . left, multiplier: 1 , constant: 30 )
44- let bannerHeight = NSLayoutConstraint ( item: cycleBannerView, attribute: . height, relatedBy: . equal, toItem: nil , attribute: . notAnAttribute, multiplier: 1 , constant: 200 )
44+ let bannerHeight = NSLayoutConstraint ( item: cycleBannerView, attribute: . height, relatedBy: . equal, toItem: nil , attribute: . notAnAttribute, multiplier: 1 , constant: 300 )
4545 let bannerRight = NSLayoutConstraint ( item: cycleBannerView, attribute: . right, relatedBy: . equal, toItem: self . view, attribute: . right, multiplier: 1 , constant: - 30 )
4646 self . view. addConstraints ( [ bannerTop, bannerLeft, bannerHeight, bannerRight] )
4747
48+ button1Tapped ( )
49+ cycleBannerView. setCurrentIndex ( 1 , animated: false )
50+
4851 let view = UIView ( frame: CGRect ( x: 170 , y: 310 , width: 20 , height: 20 ) )
4952 view. backgroundColor = UIColor . green
5053 self . view. addSubview ( view)
5154
52- let item1 = CycleBannerViewItem ( )
55+ let button = UIButton ( frame: CGRect ( x: 300 , y: 500 , width: 80 , height: 50 ) )
56+ button. backgroundColor = UIColor . red
57+ button. addTarget ( self , action: #selector( buttonTapped) , for: . touchUpInside)
58+ self . view. addSubview ( button)
59+
60+ let button1 = UIButton ( frame: CGRect ( x: 300 , y: 560 , width: 80 , height: 50 ) )
61+ button1. backgroundColor = UIColor . blue
62+ button1. addTarget ( self , action: #selector( button1Tapped) , for: . touchUpInside)
63+ self . view. addSubview ( button1)
64+ }
65+
66+ override func viewDidLoad( ) {
67+ super. viewDidLoad ( )
68+
69+ }
70+
71+ func cycleBannerView( _ cycleBannerView: CycleBannerView , didSelectItemAt index: Int ) {
72+
73+ print ( " tap item at = %d " , index)
74+ }
75+
76+ func cycleBannerViewDidLayoutItems( _ cycleBannerView: CycleBannerView ) {
77+
78+ let scrollView = cycleBannerView. scrollView!
79+ let contentOffset = scrollView. contentOffset
80+ let contentCenterX = scrollView. frame. width / 2.0 + contentOffset. x
81+ let totalWidth = scrollView. contentSize. width > 0 ? scrollView. contentSize. width : scrollView. frame. width
82+ for item in cycleBannerView. items {
83+ let scale = 1 - abs( contentCenterX - item. center. x) * 1.5 / totalWidth
84+ item. transform = CGAffineTransform ( scaleX: scale, y: scale)
85+ }
86+ }
87+
88+ public func scrollViewDidScroll( _ scrollView: UIScrollView ) {
89+
90+ let contentOffset = scrollView. contentOffset
91+ let contentCenterX = scrollView. frame. width / 2.0 + contentOffset. x
92+ let totalWidth = scrollView. contentSize. width > 0 ? scrollView. contentSize. width : scrollView. frame. width
93+ for item in cycleBannerView. items {
94+ let scale = 1 - abs( contentCenterX - item. center. x) * 1.5 / totalWidth
95+ item. transform = CGAffineTransform ( scaleX: scale, y: scale)
96+ }
97+ }
98+
99+ func buttonTapped( ) {
100+ var index = cycleBannerView. currentIndex + 2
101+ if index > cycleBannerView. numberOfItems {
102+
103+ index = 0
104+ }
105+ cycleBannerView. setCurrentIndex ( index, animated: true )
106+ }
107+
108+ func button1Tapped( ) {
109+
110+
111+ let item1 = CycleBannerViewItem ( frame: self . view. bounds)
53112 item1. contentView. backgroundColor = UIColor . green
54113 let item2 = CycleBannerViewItem ( )
55114 item2. contentView. backgroundColor = UIColor . blue
@@ -92,15 +151,4 @@ class CycleBannerTestViewController: UIViewController, CycleBannerViewDelegate,
92151
93152 cycleBannerView. items = [ item1, item2, item3, item4, item5, item6, item7, item8, item9, item10, item11, item12, item13, item14, item15, item16, item17, item18, item19, item20]
94153 }
95-
96- override func viewDidLoad( ) {
97- super. viewDidLoad ( )
98-
99- }
100-
101- func cycleBannerView( _ cycleBannerView: CycleBannerView , didSelectItemAt index: Int ) {
102-
103- print ( " tap item at = %d " , index)
104- }
105-
106154}
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