首先實現UIScrollViewDelegate協議：

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1 #import

2

3 @interface Activity01ViewController : UIViewController{

4 UIScrollView *myscrollview;

5 }

6 @property (nonatomic,retain) UIScrollView *myscrollview;

7 @end

實現協議的下列方法:

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8 #import

9

10 @interface Activity01ViewController : UIViewController{

11 UIScrollView *myscrollview;

12 }

13 @property (nonatomic,retain) UIScrollView *myscrollview;

14 @end

對myscrollview進行初始化：

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15 - (void)viewDidLoad

16 {

17 [super viewDidLoad];

18 // Do any additional setup after loading the view, typically from a nib.

19 myscrollview = [[UIScrollView alloc] initWithFrame:CGRectMake(0.0, 44,768, 1004)];

20 myscrollview.directionalLockEnabled = YES; //只能一個方向滑動

21 myscrollview.pagingEnabled = NO; //是否翻頁

22 myscrollview.backgroundColor = [UIColor blackColor];

23 myscrollview.showsVerticalScrollIndicator =YES; //垂直方向的滾動指示

24 myscrollview.indicatorStyle = UIScrollViewIndicatorStyleWhite;//滾動指示的風格

25 myscrollview.showsHorizontalScrollIndicator = NO;//水平方向的滾動指示

26 myscrollview.delegate = self;

27 CGSize newSize = CGSizeMake(self.view.frame.size.width, self.view.frame.size.height+1);

28 [myscrollview setContentSize:newSize];

29

30 float x=0;

31 float y=0;

32 float width =768;

33 float height = 1004;

34

35 UIImageView *myimage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Activity01.png"]];

36 //[myimage setContentMode:UIViewContentModeScaleAspectFill];

37 [myimage setFrame:CGRectMake(x, y, width, height)];

38 [myscrollview addSubview:myimage];

39

40

41 [self.view addSubview:myscrollview];

42 }

屬性總結：

屬性 作用

CGPoint contentOffSet 監控目前滾動的位置

CGSize contentSize 滾動范圍的大小

UIEdgeInsets contentInset 視圖在scrollView中的位置

id delegate 設置協議

BOOL directionalLockEnabled 指定控件是否只能在一個方向上滾動

BOOL bounces 控制控件遇到邊框是否反彈

BOOL alwaysBounceVertical 控制垂直方向遇到邊框是否反彈

BOOL alwaysBounceHorizontal 控制水平方向遇到邊框是否反彈

BOOL pagingEnabled 控制控件是否整頁翻動

BOOL scrollEnabled 控制控件是否能滾動

BOOL showsHorizontalScrollIndicator 控制是否顯示水平方向的滾動條

BOOL showsVerticalScrollIndicator 控制是否顯示垂直方向的滾動條

UIEdgeInsets scrollIndicatorInsets 指定滾動條在scrollerView中的位置

UIScrollViewIndicatorStyleindicatorStyle 設定滾動條的樣式

float decelerationRate 改變scrollerView的減速點位置

BOOL tracking 監控當前目標是否正在被跟蹤

BOOL dragging 監控當前目標是否正在被拖拽

BOOL decelerating 監控當前目標是否正在減速

BOOL delaysContentTouches 控制視圖是否延時調用開始滾動的方法

BOOL canCancelContentTouches 控制控件是否接觸取消touch的事件

float minimumZoomScale 縮小的最小比例

float maximumZoomScale 放大的最大比例

float zoomScale 設置變化比例

BOOL bouncesZoom 控制縮放的時候是否會反彈

BOOL zooming 判斷控件的大小是否正在改變

BOOL zoomBouncing 判斷是否正在進行縮放反彈

BOOL scrollsToTop 控制控件滾動到頂部

注意：

1、使scrollview不要上下滑動，可以設置

scrollview.contentSize = CGSizeMake(你要的長度, 0);

協議方法解釋：

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43 #pragma mark UIScrollViewDelegate

44 //只要滾動了就會觸發

45 - (void)scrollViewDidScroll:(UIScrollView *)scrollView;

46 {

47 // NSLog(@" scrollViewDidScroll");

48 NSLog(@"ContentOffset x is %f,yis %f",scrollView.contentOffset.x,scrollView.contentOffset.y);

49 }

50 //開始拖拽視圖

51 - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView;

52 {

53 NSLog(@"scrollViewWillBeginDragging");

54 }

55 //完成拖拽

56 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate;

57 {

58 NSLog(@"scrollViewDidEndDragging");

59 }

60 //將開始降速時

61 - (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView;

62 {

63 NSLog(@"scrollViewWillBeginDecelerating");

64 }

65

66 //減速停止了時執行，手觸摸時執行執行

67 - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView;

68 {

69 NSLog(@"scrollViewDidEndDecelerating");

70 }

71 //滾動動畫停止時執行,代碼改變時出發,也就是setContentOffset改變時

72 - (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView;

73 {

74 NSLog(@"scrollViewDidEndScrollingAnimation");

75 }

76 //設置放大縮小的視圖，要是uiscrollview的subview

77 - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView;

78 {

79 NSLog(@"viewForZoomingInScrollView");

80 return viewA;

81 }

82 //完成放大縮小時調用

83 - (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale;

84 {

85 viewA.frame=CGRectMake(50,0,100,400);

86 NSLog(@"scale between minimum and maximum. called after any 'bounce' animations");

87 }// scale between minimum and maximum. called after any 'bounce' animations

88

89 //如果你不是完全滾動到滾軸視圖的頂部，你可以輕點狀態欄，那個可視的滾軸視圖會一直滾動到頂部，那是默認行為，你可以通過該方法返回NO來關閉它

90 - (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView;

91 {

92 NSLog(@"scrollViewShouldScrollToTop");

93 returnYES;

94 }

95

96 - (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView;

97 {

98 NSLog(@"scrollViewDidScrollToTop");

99 }