scrollerView 20 像素的偏移
去掉如下
- (void)viewDidLoad {
self.automaticallyAdjustsScrollViewInsets = NO;
self.scrollView.contentInset = UIEdgeInsetsMake(0,0,0,0);
[super viewDidLoad];
}
- (void)viewDidLoad {
self.automaticallyAdjustsScrollViewInsets = NO;
self.scrollView.contentInset = UIEdgeInsetsMake(0,0,0,0);
[super viewDidLoad];
}