Scrollview有几个主要的属性:
contentSize:Scrollview中内容视图的大小,返回CGSize结构体类型,包含width和height2个成员;
contentInset:用于在Scrollview中的内容视图周围添加边框,往往是为了留出空白以放置工具栏 标签栏 或导航栏
contentOffset:内容视图坐标原点雨Scrollview坐标原点的偏移量,返回CGSize结构体类型
@implementation ViewController- (void)viewDidLoad{[super viewDidLoad];self.scrollView.contentSize = CGSizeMake(320, 600);}-(void)viewDidAppear:(BOOL)animated{[self.scrollView setContentOffset:CGPointMake(0, 110) animated:YES];//self.scrollView.contentOffset = CGPointMake(0, 110);NSLog(@" self.scrollView.contentSize %f,%f", self.scrollView.contentSize.height, self.scrollView.contentSize.width);[super viewDidAppear:YES];}