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iOS如何使用iCarousel实现3D图片轮播
iCarousel是一款运行在iPhone和iPad上的第三方轮播图控件,与TableView类似的实现方式,简单又方便。
工具/原料
- Xcode
- iCarousel
方法/步骤
iCarousel中iCarouselDataSource代理中必须实现的两个代理方法如下:
- (NSInteger)numberOfItemsInCarousel:(iCarousel *)carousel;
- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSInteger)index reusingView:(nullable UIView *)view;
在需要实现的控制器中导入iCarousel.h头文件,遵循
iCarouselDelegate与iCarouselDataSource代理,如下:
然后在需要实现的控制器中初始化iCarousel,iCarousel继承于UIView,使用时候只需要像其他控件一样初始化加在指定的视图上即可,如下:
iCarousel *carousel = [[iCarousel alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT)];
carousel.type = iCarouselTypeCylinder;
carousel.delegate = self;
carousel.dataSource = self;
[self.view addSubview:carousel];
iCarouselDataSource的两个代理实现如下,分别设置视图个数以及单个视图设置,如下:
- (NSInteger)numberOfItemsInCarousel:(iCarousel *)carousel
{
return 10;
}
- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSInteger)index reusingView:(nullable UIView *)view
{
if (view == nil) {
UIView *colorView = [[UIView alloc] init];
colorView.backgroundColor = [UIColor colorWithRed:(arc4random()%6)/255.0 green:(arc4random()%6)/255.0 blue:(arc4random()%6)/255.0 alpha:1.0];
colorView.frame = CGRectMake(0, 0, 150, CGRectGetHeight(carousel.bounds));
return colorView;
}else{
view.backgroundColor = [UIColor colorWithRed:(arc4random()%6)/255.0 green:(arc4random()%6)/255.0 blue:(arc4random()%6)/255.0 alpha:1.0];
return view;
}
return nil;
}
iCarouselDelegate中- (void)carousel:(__unused iCarousel *)carousel didSelectItemAtIndex:(NSInteger)index;代理方法在点击轮播视图时候响应,实现如下:
- (void)carousel:(__unused iCarousel *)carousel didSelectItemAtIndex:(NSInteger)index
{
NSLog(@"Tapped view number: %ld", (long)index);
}
其他代理方法的实现可以根据自身需要进行设置。
使用iCarouselTypeCylinder类型的实现效果如下:
以上方法由办公区教程网编辑摘抄自百度经验可供大家参考!
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