iOS 点击箭头滚动视图~demo

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一、功能效果GIF图:

二、实现代码

-(void)arrowButtonTouched

{

//移动到最右侧

CGFloat offsetW =self.scrollView.contentSize.width - [UIScreen mainScreen].bounds.size.width;

if(offsetW>0) {

ok_MainThread(^{

[self.scrollView setContentOffset:CGPointMake(offsetW,0) animated:YES];

});}}

//宏定义-封装:

#define ok_MainThread(block)\

if ([NSThread isMainThread]) {\

block();\

} else {\

dispatch_async(dispatch_get_main_queue(), block);\

}

谢谢!!!