RNFrostedSidebar（左滑控制器出现动画）

////  RNFrostedMenu.h//  RNFrostedMenu////  Created by Ryan Nystrom on 8/13/13.//  Copyright (c) 2013 Ryan Nystrom. All rights reserved.////  Original Dribbble shot by Jakub Antalik//  http://dribbble.com/shots/1194205-Sidebar-calendar-animation//#import@class RNFrostedSidebar;@protocol RNFrostedSidebarDelegate@optional- (void)sidebar:(RNFrostedSidebar *)sidebar willShowOnScreenAnimated:(BOOL)animatedYesOrNo;- (void)sidebar:(RNFrostedSidebar *)sidebar didShowOnScreenAnimated:(BOOL)animatedYesOrNo;- (void)sidebar:(RNFrostedSidebar *)sidebar willDismissFromScreenAnimated:(BOOL)animatedYesOrNo;- (void)sidebar:(RNFrostedSidebar *)sidebar didDismissFromScreenAnimated:(BOOL)animatedYesOrNo;- (void)sidebar:(RNFrostedSidebar *)sidebar didTapItemAtIndex:(NSUInteger)index;- (void)sidebar:(RNFrostedSidebar *)sidebar didEnable:(BOOL)itemEnabled itemAtIndex:(NSUInteger)index;@end@interface RNFrostedSidebar : UIViewController+ (instancetype)visibleSidebar;// The width of the sidebar// Default 150@property (nonatomic, assign) CGFloat width;// Access the view that contains the menu items@property (nonatomic, strong, readonly) UIScrollView *contentView;// Toggle displaying the sidebar on the right side of the device// Default NO@property (nonatomic, assign) BOOL showFromRight;// The duration of the show and hide animations// Default 0.25@property (nonatomic, assign) CGFloat animationDuration;// The dimension for each item view, not including padding// Default {75, 75}@property (nonatomic, assign) CGSize itemSize;// The color to tint the blur effect// Default white: 0.2, alpha: 0.73@property (nonatomic, strong) UIColor *tintColor;// The background color for each item view// NOTE: set using either colorWithWhite:alpha or colorWithRed:green:blue:alpha// Default white: 1, alpha 0.25@property (nonatomic, strong) UIColor *itemBackgroundColor;// The width of the colored border for selected item views// Default 2@property (nonatomic, assign) NSUInteger borderWidth;// An optional delegate to respond to interaction events@property (nonatomic, weak) iddelegate;