// 设置滚动条的风格
// .Default (默认)灰色
// .Black 黑色的滚动条
// .Whitr 白色的滚动条
typedef NS_ENUM(NSInteger, UIScrollViewIndicatorStyle) {
UIScrollViewIndicatorStyleDefault,
UIScrollViewIndicatorStyleBlack,
UIScrollViewIndicatorStyleWhite
};
//self.scrollView.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;//刚拖动scrollView就隐藏键盘
//self.scrollView.keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive;//从键盘上面点（scrollView未遮挡部分）向下滑动，键盘会跟着滑动；又往上滑动键盘也会跟着向上滑动
//UIScrollViewKeyboardDismissModeNone//默认值，没有任何影响
typedef NS_ENUM(NSInteger, UIScrollViewKeyboardDismissMode) {
UIScrollViewKeyboardDismissModeNone,
UIScrollViewKeyboardDismissModeOnDrag, // dismisses the keyboard when a drag begins
UIScrollViewKeyboardDismissModeInteractive, // the keyboard follows the dragging touch off screen, and may be pulled upward again to cancel the dismiss
} NS_ENUM_AVAILABLE_IOS(7_0);
//手指滑动后抬起，页面的减速速率。可以使用UIScrollViewDecelerationRateNormal和UIScrollViewDecelerationRateFast常量值来设置合理的减速速率。
UIKIT_EXTERN const CGFloat UIScrollViewDecelerationRateNormal NS_AVAILABLE_IOS(3_0);
UIKIT_EXTERN const CGFloat UIScrollViewDecelerationRateFast NS_AVAILABLE_IOS(3_0);
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