scrollView實現輪播

2022-08-16 16:15:13 字數 1857 閱讀 2446

1.

/**2. * @brief 建立輪播,在tableview建立之後和資料載入後

3. */

4.-(void)createcarousel

24. _carousel.contentoffset = cgpointmake(screen_w, 0);

25.26.

27. [carouselback addsubview:_carousel];

28.29. _pagecontrol = [[uipagecontrol alloc] initwithframe:cgrectmake(0, 0, screen_w * 0.2, 10)];

30. _pagecontrol.numberofpages = numberofad;

31. _pagecontrol.pageindicatortintcolor = [uicolor lightgraycolor];

32. _pagecontrol.currentpageindicatortintcolor = [uicolor whitecolor];

33. _pagecontrol.center = cgpointmake(screen_w * 0.5, carousel_height - 20);

34. _pagecontrol.tintcolor = [uicolor colorwithred:0.8 green:0.8 blue:0.8 alpha:1];

35. [carouselback addsubview:_pagecontrol];

36.37.

self

.storytableview

.tableheaderview = carouselback;

38.39. _timer = [nstimer scheduledtimerwithtimeinterval:5.0f target:self selector:@selector(doscroll) userinfo:nil repeats:yes];

40.}

41.#pragma mark - scrollview的**方法

42.-(void)scrollviewdidenddecelerating:(uiscrollview *)scrollviewelse

if (scrollview.contentoffset

.x == 0);

48. }

49. }

50.}

51.-(void)scrollviewdidscroll:(uiscrollview *)scrollview

56.}

57.// 關於drag方法,可以避免手動拖動後與timer的執行時間相撞,從而連續滾動兩張

58.-(void)scrollviewwillbegindragging:(uiscrollview *)scrollview

61.-(void)scrollviewdidenddragging:(uiscrollview *)scrollview willdecelerate:(bool)decelerate

65.66.

#pragma mark - 定時器**

67.-(void)doscroll completion:^(bool finished) ;

75. _carousel.contentoffset = offset;

76. }

77. _pagecontrol.currentpage = offset.x / screen_w - 1;

78. }];

79.}

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