iOS UIScrollView滚动视图/无限循环滚动/自动滚动的实例代码

我们都知道uiscrollview有一种很流畅的切换效果，结合uipagecontrol的辅助展示效果，就可以完成一个很不错的产品介绍功能页面。下面给大家分享ios uiscrollview滚动视图/无限循环滚动/自动滚动功能，具体代码如下所示；

<uiscrollviewdelegate>
#define width [[uiscreen mainscreen] bounds].size.width
#define height [[uiscreen mainscreen] bounds].size.height
@property (nonatomic, strong)nstimer *timer; //定时器
@property (nonatomic, retain)nsmutablearray *arr; //放图片的数组
@property (nonatomic, retain)uiview *headerview; //tableview的表头
@property (nonatomic, retain)uiimageview *image; //图片
@property (nonatomic, retain)uiscrollview *scrollview; 
@property (nonatomic, retain)uipagecontrol *pagec; //页码
//设置头视图
- (void)headimage{
  //图片数组
  self.arr = [nsmutablearray arraywithobjects:@"8.jpg",@"1.jpg", @"2.jpg", @"3.jpg", @"4.jpg", @"5.jpg", @"6.jpg", @"7.jpg", @"8.jpg", @"1.jpg", nil];
  self.scrollview = [[uiscrollview alloc]initwithframe:cgrectmake(0, 0, width, 200 * height/667)];
  self.scrollview.backgroundcolor = [uicolor clearcolor];
  //设置滚动量
  self.scrollview.contentsize = cgsizemake(width * self.arr.count, 0);
  //设置偏移量
  self.scrollview.contentoffset = cgpointmake(width, 0);
  //设置按页滚动
  self.scrollview.pagingenabled = yes;
  //设置是否显示水平滑动条
  self.scrollview.showshorizontalscrollindicator = no;
  //设置是否边界反弹
  self.scrollview.bounces = no;
  //把scrollview添加到tableview的表头的视图上
  [self.headerview addsubview:self.scrollview];
  [_scrollview release];
  //循环图片添加到uiimageview上
  for (int i = 0 ; i < self.arr.count; i++) {
    nsstring *name = [self.arr objectatindex:i];
    uiimage *img = [uiimage imagenamed:name];
    self.image = [[uiimageview alloc]init];
    self.image.frame = cgrectmake(i * width, 0, width, 200 * height/667);
    self.image.image = img;
    [self.scrollview addsubview:self.image];
    [_image release];
  }
  self.scrollview.delegate = self;
  //设置页面
  self.pagec = [[uipagecontrol alloc]initwithframe:cgrectmake(100 * width/375, 120 * height/667, 200* width/375, 60*height/667)];
  self.pagec.backgroundcolor = [uicolor clearcolor];
  //把页码添加到头视图上
  [self.headerview addsubview:self.pagec];
  //设置页码数
  self.pagec.numberofpages = self.arr.count;
  //设置选中页码的颜色
  self.pagec.currentpageindicatortintcolor = [uicolor browncolor];
  //设置未选中的页码颜色
  self.pagec.pageindicatortintcolor = [uicolor graycolor];
  //设置当前选中页
  self.pagec.currentpage = 0;
  //核心方法
  [self.pagec addtarget:self action:@selector(pageaction:) forcontrolevents:uicontroleventvaluechanged];
  [_pagec release];
  //自定义一个定时器方法
  [self addtimer];
}
 //定时器执行方法
- (void)change:(nstimer *)time{
  if (self.pagec.currentpage == self.pagec.numberofpages - 1) {
    self.pagec.currentpage = 0;
  } else if (self.pagec.currentpage < self.pagec.numberofpages - 1) {
    self.pagec.currentpage++;
  }
  [self.scrollview setcontentoffset:cgpointmake((self.pagec.currentpage + 1) * width, 0) animated:no];
 }

以上所述是小编给大家介绍的ios uiscrollview滚动视图/无限循环滚动/自动滚动的实例代码，希望对大家有所帮助