//1.设定滚定条的样式
typedef NS_ENUM(NSInteger, UIScrollViewIndicatorStyle) {
UIScrollViewIndicatorStyleDefault, // black with white border. good against any background 黑白边框
UIScrollViewIndicatorStyleBlack, // black only. smaller. good against a white background 纯黑边框
UIScrollViewIndicatorStyleWhite // white only. smaller. good against a black background 纯白边框
};
//2.在UIScrollView中键盘的消失方式
typedef NS_ENUM(NSInteger, UIScrollViewKeyboardDismissMode) {
UIScrollViewKeyboardDismissModeNone, 默认样式
UIScrollViewKeyboardDismissModeOnDrag, // dismisses the keyboard when a drag begins 设定键盘的消失方式为拖拉页面
UIScrollViewKeyboardDismissModeInteractive, // the keyboard follows the dragging touch off screen, and may be pulled upward again to cancel the dismiss 设定键盘消失方式为拖拉并点击页面
} NS_ENUM_AVAILABLE_IOS(7_0);
//3.这个參数能够设置减速的速率
UIKIT_EXTERN const CGFloat UIScrollViewDecelerationRateNormal NS_AVAILABLE_IOS(3_0);
//4.这个參数能够设置减速的速率
UIKIT_EXTERN const CGFloat UIScrollViewDecelerationRateFast NS_AVAILABLE_IOS(3_0);
//5.从内容视图的原点偏移的一个点
@property(nonatomic) CGPoint contentOffset;
//6.内容视图的大小
@property(nonatomic) CGSize contentSize;
//7.内容视图的距离，是从封闭的滚动视图插图
@property(nonatomic) UIEdgeInsets contentInset; around content
//8.滚动视图的代理
@property(nonatomic,assign) id<UIScrollViewDelegate> delegate;
//9.一个bool值。用来决定是否在某一特定方向禁用滚动
@property(nonatomic,getter=isDirectionalLockEnabled) BOOL directionalLockEnabled;
//10.控制滚动视图是否反弹过去内容的边缘。然后再返回一个布尔值
@property(nonatomic) BOOL bounces;
//11.假设这个属性被设置成YES并且bounces的值是YES，垂直拖动是同意的内容，即使小鱼滚动视图的边界，默认是NO
@property(nonatomic) BOOL alwaysBounceVertical;
//12.一个布尔值，决定是否反弹总是发生在垂直滚动到达结束内容。默认值是NO
@property(nonatomic) BOOL alwaysBounceHorizontal;
//13.一个布尔值 决定是否弃用分页滚动视图
@property(nonatomic,getter=isPagingEnabled) BOOL pagingEnabled;
//14.决定是否弃用滚动
@property(nonatomic,getter=isScrollEnabled) BOOL scrollEnabled;
//15.控制水平滚动指标是否可见的
@property(nonatomic) BOOL showsHorizontalScrollIndicator;
//16.控制垂直滚动指标是否是可见的
@property(nonatomic) BOOL showsVerticalScrollIndicator;
//17.滚动指标点到滚动视图的边缘的距离
@property(nonatomic) UIEdgeInsets scrollIndicatorInsets; //18.指示器的风格设置
@property(nonatomic) UIScrollViewIndicatorStyle indicatorStyle;
//19.默认减速率
@property(nonatomic) CGFloat decelerationRate NS_AVAILABLE_IOS(3_0);
//20.设置从内容原点偏移到指定点的方法
- (void)setContentOffset:(CGPoint)contentOffset animated:(BOOL)animated;
//21.滚动一个特定区域的内容以便它在接受是可见的
- (void)scrollRectToVisible:(CGRect)rect animated:(BOOL)animated;
//22.临时显示滚动指标
- (void)flashScrollIndicators;
//23.返回推断是否用户碰触内容触发滚动（仅仅读）
@property(nonatomic,readonly,getter=isTracking) BOOL tracking;
//24.一个布尔值 知识用户是否已经開始滚动内容
@property(nonatomic,readonly,getter=isDragging) BOOL dragging;
//25.返回的内容是否在滚动视图后。用户接触他们的手指（仅仅读）
@property(nonatomic,readonly,getter=isDecelerating) BOOL decelerating;
//26.一个布尔值，决定是否推迟滚动视图触摸手势的处理
@property(nonatomic) BOOL delaysContentTouches;
//27.假设这个值设置为YES，那么当你在UIScrollView上面放置不论什么子视图的时候，当你在子视图上移动的时候，UIScrollView会给子视图发送touchCancel消息，而假设该属性设置为NO。ScollView本身不处理这个消息，所有交给子视图处理
@property(nonatomic) BOOL canCancelContentTouches;
//28.自己定义默认行为，当手指触摸在显示的内容由子类重写
- (BOOL)touchesShouldBegin:(NSSet *)touches withEvent:(UIEvent *)event inContentView:(UIView *)view;
//29.它開始发送跟踪邮件的内容视图后动视图调用此方法。
假设它从这样的方法受到NO便停止拖动和转发触摸时间的内容子视图。
- (BOOL)touchesShouldCancelInContentView:(UIView *)view;
//30.浮点值 指定可应用于滚动视图的内容的最低比例因子
@property(nonatomic) CGFloat minimumZoomScale;
//31.一个浮点值指定可用于滚动视图的内容的最大规模的因素
@property(nonatomic) CGFloat maximumZoomScale;
//32.一个浮点值 指定眼下用于滚动视图的内容的比例因子
@property(nonatomic) CGFloat zoomScale NS_AVAILABLE_IOS(3_0); //33.一个浮点数指定当前的缩放比例
- (void)setZoomScale:(CGFloat)scale animated:(BOOL)animated NS_AVAILABLE_IOS(3_0);
//34.缩小到特定区域的内容，所以它是在接收器中可见
- (void)zoomToRect:(CGRect)rect animated:(BOOL)animated NS_AVAILABLE_IOS(3_0);
//35.一个布尔值。决定当当缩放超过上限或是下限时是否滚动视图推动内容缩放
@property(nonatomic) BOOL bouncesZoom;
//36.一个布尔值 指示内容是否觉得正在方法或者缩小（仅仅读）
@property(nonatomic,readonly,getter=isZooming) BOOL zooming;
//37.一个布尔值 指示缩放已超过指定的接受范围
@property(nonatomic,readonly,getter=isZoomBouncing) BOOL zoomBouncing;
//38.一个布尔值 控制是否滚动到顶部的姿态是有效地
@property(nonatomic) BOOL scrollsToTop;
//39.拖动手势（仅仅读）
@property(nonatomic, readonly) UIPanGestureRecognizer *panGestureRecognizer NS_AVAILABLE_IOS(5_0);
//40.向里向外捏用于缩放
@property(nonatomic, readonly) UIPinchGestureRecognizer *pinchGestureRecognizer NS_AVAILABLE_IOS(5_0);
//41.设置见哦按的小事样式
@property(nonatomic) UIScrollViewKeyboardDismissMode keyboardDismissMode NS_AVAILABLE_IOS(7_0);
@end
@protocol UIScrollViewDelegate<NSObject>
@optional
//42.scrollView正在滚动的时候调用
- (void)scrollViewDidScroll:(UIScrollView *)scrollView;
//43.scrollView正在被拖动的时候调用
- (void)scrollViewDidZoom:(UIScrollView *)scrollView NS_AVAILABLE_IOS(3_2);
//44. scrollView開始拖拽的时候调用
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView;
//45. scrollView将要结束拖拽的时候调用
- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset NS_AVAILABLE_IOS(5_0);
//46. scrollView完毕拖拽的时候调用
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate;
//47. scrollView将開始降速的时候调用
- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView;
//48. scrollView在减速停止了时候运行。手触摸时候运行
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView;
//49. 滚动动画停止时运行代码改变时触发。也就是setContentOffset改变的时候
- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView;
//50.返回一个放大或者缩小的视图
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView;
//51.開始放大或者缩小时候调用
- (void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:(UIView *)view NS_AVAILABLE_IOS(3_2);
//52.缩放结束时候调用
- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(CGFloat)scale;
//53.是否支持滚动至顶部
- (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView;
//54.滚动顶部时候调用该方法
- (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView;
@end
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