iOS UIScrollView滚动视图/无限循环滚动/自动滚动的实例代码
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2024-02-15 20:09:10
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 uis...
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
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