Forked from Mazyod/UIViewController+DismissOnTapOutside.h
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// | |
// UIViewController+DismissOnTapOutside.h | |
// Telly | |
// | |
// Created by Mazyad Alabduljaleel on 5/8/14. | |
// Copyright (c) 2014 Telly, Inc. All rights reserved. | |
// | |
#import <UIKit/UIKit.h> | |
@interface UIViewController (DismissOnTapOutside) | |
- (void)registerForDismissOnTapOutside; // Call in viewDidAppear | |
- (void)unregisterForDismissOnTapOutside; // Call in viewWillDisappear | |
@end |
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// | |
// UIViewController+DismissOnTapOutside.m | |
// Telly | |
// | |
// Created by Mazyad Alabduljaleel on 5/8/14. | |
// Copyright (c) 2014 Telly, Inc. All rights reserved. | |
// | |
#import "UIViewController+DismissOnTapOutside.h" | |
#import <objc/runtime.h> | |
static char gestureRecognizerKey; | |
static char gestureRecognizerDelegateKey; | |
@interface SimpleGestureRecognizerDelegate : NSObject <UIGestureRecognizerDelegate> | |
@end | |
@implementation SimpleGestureRecognizerDelegate | |
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer | |
{ | |
return ![otherGestureRecognizer.view isKindOfClass:NSClassFromString(@"UINavigationBar")]; | |
} | |
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRequireFailureOfGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer | |
{ | |
return ![otherGestureRecognizer.view isKindOfClass:NSClassFromString(@"UIDimmingView")]; | |
} | |
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{ | |
return [touch.view isKindOfClass:NSClassFromString(@"UIDimmingView")];; | |
} | |
@end | |
@interface UIViewController () | |
@property (assign, nonatomic) UIGestureRecognizer *gestureRecognizer; | |
@property (strong, nonatomic) SimpleGestureRecognizerDelegate *gestureRecognizerDelegate; | |
@end | |
@implementation UIViewController (DismissOnTapOutside) | |
- (void)setGestureRecognizer:(UIGestureRecognizer *)gestureRecognizer | |
{ | |
objc_setAssociatedObject(self, &gestureRecognizerKey, gestureRecognizer, OBJC_ASSOCIATION_ASSIGN); | |
} | |
- (UIGestureRecognizer *)gestureRecognizer | |
{ | |
return objc_getAssociatedObject(self, &gestureRecognizerKey); | |
} | |
- (void)setGestureRecognizerDelegate:(SimpleGestureRecognizerDelegate *)delegate | |
{ | |
objc_setAssociatedObject(self, &gestureRecognizerDelegateKey, delegate, OBJC_ASSOCIATION_RETAIN_NONATOMIC); | |
} | |
- (UIGestureRecognizer *)gestureRecognizerDelegate | |
{ | |
id delegate = objc_getAssociatedObject(self, &gestureRecognizerDelegateKey); | |
if (!delegate) | |
{ | |
delegate = [[SimpleGestureRecognizerDelegate alloc] init]; | |
self.gestureRecognizerDelegate = delegate; | |
} | |
return delegate; | |
} | |
- (void)handleDismissTap:(UIGestureRecognizer *)gesture | |
{ | |
if (gesture.state == UIGestureRecognizerStateEnded) | |
{ | |
UIView *view = self.view; | |
CGPoint location = [gesture locationInView:view]; | |
if (![view pointInside:location withEvent:nil]) | |
{ | |
[self.presentingViewController dismissViewControllerAnimated:YES completion:nil]; | |
} | |
} | |
} | |
- (void)registerForDismissOnTapOutside | |
{ | |
// This approach is attributed to Danilo Campos: | |
// http://stackoverflow.com/a/6180584/456434 | |
UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleDismissTap:)]; | |
recognizer.delegate = self.gestureRecognizerDelegate; | |
recognizer.numberOfTapsRequired = 1; | |
recognizer.cancelsTouchesInView = YES; | |
self.gestureRecognizer = recognizer; | |
[self.view.window addGestureRecognizer:recognizer]; | |
} | |
- (void)unregisterForDismissOnTapOutside | |
{ | |
[self.view.window removeGestureRecognizer:self.gestureRecognizer]; | |
self.gestureRecognizer = nil; | |
} | |
@end |
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