iOS -- UIScrollView的基本属性(contentSize, contentInset, contentOffset)的用法

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#import "ViewController.h"
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIScrollView *scrollView;
@property (weak, nonatomic) IBOutlet UIImageView *minionView;
- (IBAction)scroll;
@end
@implementation ViewController
- (void)viewDidLoad{
    [super viewDidLoad];
    // 设置scrollView内容的尺寸(滚动的范围)
//    self.scrollView.contentSize = CGSizeMake(892, 480);
//    self.scrollView.contentSize = self.minionView.image.size;

// 总体内容的范围(滚动范围)
    self.scrollView.contentSize = self.minionView.frame.size;
    // <#CGFloat top#>, <#CGFloat left#>, <#CGFloat bottom#>, <#CGFloat right#>
    self.scrollView.contentInset = UIEdgeInsetsMake(10, 20, 40, 80);
//    self.scrollView.frame.size; // 可视范围
}
- (IBAction)scroll {
//    [UIView animateWithDuration:1.0 animations:^{
//        self.scrollView.contentOffset = CGPointMake(100, 0);
//    }];
//    CGPoint offset = CGPointMake(-100, -100);
    CGPoint offset = self.scrollView.contentOffset;
    offset.x += 10;
    offset.y += 10;
    [self.scrollView setContentOffset:offset animated:YES];
}
@end

// 简单的喜马拉雅界面代码
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIScrollView *scrollView;

@property (weak, nonatomic) IBOutlet UIButton *lastBtn;
@end
@implementation ViewController
- (void)viewDidLoad{
    [super viewDidLoad];
    // 设置内容尺寸
//    CGFloat contentH = self.lastBtn.frame.origin.y + self.lastBtn.frame.size.height+ 10;
    // 10是底部的间距
    CGFloat contentH = CGRectGetMaxY(self.lastBtn.frame) + 10;
    self.scrollView.contentSize = CGSizeMake(0, contentH);
    // 增加额外的滚动区域(在顶部增加64的区域,在底部增加44的区域)
    self.scrollView.contentInset = UIEdgeInsetsMake(64, 0, 44, 0);
    // 设置一开始的滚动位置(往下滚动64)
    self.scrollView.contentOffset = CGPointMake(0, -64);
}
@end

iOS -- UIScrollView的基本属性(contentSize, contentInset, contentOffset)的用法

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原文地址：http://www.cnblogs.com/lianfu/p/4849844.html