初始化

@property (nonatomic, strong) UIScrollView *mScrollView;
- (UIScrollView *)mScrollView{
    if(!_mScrollView){
        UIScrollView *scrollView=[[UIScrollView alloc] init];
        scrollView.contentSize=CGSizeMake(SCREEN_WIDTH*2, SCREEN_HEIGHT);
        scrollView.backgroundColor = [UIColor grayColor];
        scrollView.delegate = self;
        scrollView.bounces = NO;
        scrollView.pagingEnabled = YES;

        _mScrollView = scrollView;
    }
    return _mScrollView;
}

    [self.view addSubview:self.mScrollView];
    [self.mScrollView mas_makeConstraints:^(MASConstraintMaker *make) {
           make.edges.equalTo(self.view);
     }];

方法&属性

##控制控件遇到边框是否反弹(默认为YES)
scrollView.bounces = NO;
##控制控件是否整页翻动(默认为NO)
scrollView.pagingEnabled = YES;
##控制控件是否能滚动(默认为YES)
scrollView.scrollEnabled = YES;
##控制是否显示垂直方向的滚动条(默认为YES)
scrollView.showsVerticalScrollIndicator = YES;
##控制是否显示水平方向的滚动条(默认为YES)
scrollView.showsHorizontalScrollIndicator = YES;
##滚动到指定位置(默认CGPointZero)
 [scrollView setContentOffset:CGPointMake(0, 200) animated:YES];

##取消向下偏移 64/20
    if(@available(iOS 11.0, *)) {
        self.mScrollView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
    }else {
        self.automaticallyAdjustsScrollViewInsets = NO;
    }

常用代理方法

##scrollView滚动时，就调用该方法。即滚动过程中，调用多次

- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
    
    CGPoint point=scrollView.contentOffset;
    NSLog(@"%f,%f",point.x,point.y);

}

其他属性

##-----界面中有UIScrollView的话，点击状态栏会让其滚动到顶部

UIScrollView 嵌套 UITableView

https://www.jianshu.com/p/ec096a7d3a09

利用Storyboard给UIScrollView添加约束

https://www.jianshu.com/p/39bef1487814

UIScrollView总结

https://www.jianshu.com/p/2c74b7a6c082
http://www.cnblogs.com/liuting-1204/p/5960815.html
https://www.cnblogs.com/jackma86/p/4976683.html