增加文件

LYSheetController/LYSheetMenu.h

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+//
+//  LYSheetMenu.h
+//  LYSheetControllerDemo
+//
+//  Created by Ju Liaoyuan on 2017/5/23.
+//  Copyright © 2017年 Leo. All rights reserved.
+//
+
+#ifndef LYSheetMenu_h
+#define LYSheetMenu_h
+
+#import "LYSheetProtocol.h"
+#import "LYSheetController.h"
+
+#endif /* LYSheetMenu_h */

LYSheetController/LYSheetProtocol.h

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+//
+//  LYSheetProtocal.h
+//  LYSheetControllerDemo
+//
+//  Created by Ju Liaoyuan on 2017/5/22.
+//  Copyright © 2017年 Leo. All rights reserved.
+//
+
+#ifndef LYSheetProtocal_h
+#define LYSheetProtocal_h
+
+@class LYSheetProtocol;
+@class LYSheetController;
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef NS_OPTIONS(NSInteger, LYSheetStyle) {
+    LYSheetStyleDefault = 1 << 0,
+    LYSheetStyleCancel  = 1 << 1
+};
+
+#pragma mark - LYSheetControllerDelegate
+#pragma mark
+
+@protocol LYSheetControllerDelegate <NSObject>
+
+@optional
+
+- (void)sheetController:(LYSheetController *)sheetController didSelectRowAtIndexPath:(NSInteger)indexPath;
+
+- (CGFloat)headerHeightForSheetContoller:(LYSheetController *)sheetController;
+
+- (UIView *)headerViewForSheetContoller:(LYSheetController *)sheetController;
+
+@end
+
+#pragma mark - LYSheetModel
+#pragma mark
+
+@protocol LYSheetModel <NSObject>
+
+@required
+
+/**
+ sheet style, required.
+ */
+@property (nonatomic, assign) LYSheetStyle sheetStyle;
+
+@optional
+
+/**
+ sheet action
+ */
+@property (nonatomic, assign, nullable) SEL sheetAction;
+
+/**
+ sheet title
+ */
+@property (nonatomic, copy, nullable) NSString *sheetTitle;
+
+/**
+ sheet image;
+ */
+@property (nonatomic, strong, nullable) UIImage *sheetImage;
+
+- (instancetype)initWithSheetTitle:(NSString *)aTitle selector:(nullable SEL)aSel;
+
+- (instancetype)initWithSheetTitle:(NSString *)aTitle selector:(nullable SEL)aSel style:(LYSheetStyle)aStyle;
+
+@end
+
+#pragma mark - LYSheetCell
+#pragma mark
+
+@protocol LYSheetCell <NSObject>
+
+@optional
+
+@property (nonatomic, strong) UILabel *titleLabel;
+
+@property (nonatomic, strong) UIImageView *imageView;
+
+- (void)bindModel:(id<LYSheetModel>)model;
+
+@end
+
+NS_ASSUME_NONNULL_END
+
+#endif /* LYSheetProtocal_h */

LYSheetController/UIViewController+LYActive.h

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+//
+//  UIViewController+Active.h
+//
+//  Created by JuLiaoyuan on 16/8/18.
+//  Copyright © 2016年 Spark. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface UIViewController (LYActive)
+
++ (UIViewController *)activeViewController;
+
+@end

LYSheetController/UIViewController+LYActive.m

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+//
+//  UIViewController+Active.m
+//
+//  Created by JuLiaoyuan on 16/8/18.
+//  Copyright © 2016年 Spark. All rights reserved.
+//
+
+#import "UIViewController+LYActive.h"
+
+@implementation UIViewController (LYActive)
+
++ (UIViewController *)activeViewController {
+    UIViewController *viewController = [[UIViewController alloc] init];
+    id rootVC = [UIApplication sharedApplication].keyWindow.rootViewController;
+    return [viewController activeViewController:rootVC];
+}
+- (UIViewController *)activeViewController:(id)viewController {
+    if ([viewController isKindOfClass:[UITabBarController class]]) {
+        UITabBarController *tab = (UITabBarController *)viewController;
+        return [self activeViewController:tab.selectedViewController];
+    }
+    if ([viewController isKindOfClass:[UINavigationController class]]) {
+        UINavigationController *nav = (UINavigationController *)viewController;
+        return [nav visibleViewController];
+    }
+    if ([viewController isKindOfClass:[UIViewController class]]) {
+        UIViewController *active = viewController;
+        while (active.presentedViewController) {
+            active = active.presentedViewController;
+        }
+        return active;
+    }
+    return nil;
+}
+@end