|
| 1 | +// |
| 2 | +// CAAnimation+QMUI.m |
| 3 | +// QMUIKit |
| 4 | +// |
| 5 | +// Created by MoLice on 2018/7/31. |
| 6 | +// Copyright © 2018年 QMUI Team. All rights reserved. |
| 7 | +// |
| 8 | + |
| 9 | +#import "CAAnimation+QMUI.h" |
| 10 | +#import "QMUICore.h" |
| 11 | +#import "QMUIMultipleDelegates.h" |
| 12 | + |
| 13 | +@interface _QMUICAAnimationDelegator : NSObject<CAAnimationDelegate> |
| 14 | + |
| 15 | +@end |
| 16 | + |
| 17 | +@implementation CAAnimation (QMUI) |
| 18 | + |
| 19 | ++ (void)load { |
| 20 | + static dispatch_once_t onceToken; |
| 21 | + dispatch_once(&onceToken, ^{ |
| 22 | + ExchangeImplementations(self.class, @selector(copyWithZone:), @selector(qmui_copyWithZone:)); |
| 23 | + }); |
| 24 | +} |
| 25 | + |
| 26 | +- (id)qmui_copyWithZone:(NSZone *)zone { |
| 27 | + CAAnimation *animation = [self qmui_copyWithZone:zone]; |
| 28 | + animation.qmui_multipleDelegatesEnabled = self.qmui_multipleDelegatesEnabled; |
| 29 | + animation.qmui_animationDidStartBlock = self.qmui_animationDidStartBlock; |
| 30 | + animation.qmui_animationDidStopBlock = self.qmui_animationDidStopBlock; |
| 31 | + return animation; |
| 32 | +} |
| 33 | + |
| 34 | +- (void)enabledDelegateBlocks { |
| 35 | + self.qmui_multipleDelegatesEnabled = YES; |
| 36 | + BOOL shouldSetDelegator = !self.delegate; |
| 37 | + if (!shouldSetDelegator && [self.delegate isKindOfClass:[QMUIMultipleDelegates class]]) { |
| 38 | + QMUIMultipleDelegates *delegates = (QMUIMultipleDelegates *)self.delegate; |
| 39 | + NSPointerArray *array = delegates.delegates; |
| 40 | + for (NSUInteger i = 0; i < array.count; i++) { |
| 41 | + if ([((NSObject *)[array pointerAtIndex:i]) isKindOfClass:[_QMUICAAnimationDelegator class]]) { |
| 42 | + shouldSetDelegator = NO; |
| 43 | + break; |
| 44 | + } |
| 45 | + } |
| 46 | + } |
| 47 | + if (shouldSetDelegator) { |
| 48 | + self.delegate = [[_QMUICAAnimationDelegator alloc] init];// delegate is a strong property, it can retain _QMUICAAnimationDelegator |
| 49 | + } |
| 50 | +} |
| 51 | + |
| 52 | +static char kAssociatedObjectKey_animationDidStartBlock; |
| 53 | +- (void)setQmui_animationDidStartBlock:(void (^)(__kindof CAAnimation *))qmui_animationDidStartBlock { |
| 54 | + objc_setAssociatedObject(self, &kAssociatedObjectKey_animationDidStartBlock, qmui_animationDidStartBlock, OBJC_ASSOCIATION_COPY_NONATOMIC); |
| 55 | + if (qmui_animationDidStartBlock) { |
| 56 | + [self enabledDelegateBlocks]; |
| 57 | + } |
| 58 | +} |
| 59 | + |
| 60 | +- (void (^)(__kindof CAAnimation *))qmui_animationDidStartBlock { |
| 61 | + return (void (^)(__kindof CAAnimation *))objc_getAssociatedObject(self, &kAssociatedObjectKey_animationDidStartBlock); |
| 62 | +} |
| 63 | + |
| 64 | +static char kAssociatedObjectKey_animationDidStopBlock; |
| 65 | +- (void)setQmui_animationDidStopBlock:(void (^)(__kindof CAAnimation *, BOOL))qmui_animationDidStopBlock { |
| 66 | + objc_setAssociatedObject(self, &kAssociatedObjectKey_animationDidStopBlock, qmui_animationDidStopBlock, OBJC_ASSOCIATION_COPY_NONATOMIC); |
| 67 | + if (qmui_animationDidStopBlock) { |
| 68 | + [self enabledDelegateBlocks]; |
| 69 | + } |
| 70 | +} |
| 71 | + |
| 72 | +- (void (^)(__kindof CAAnimation *, BOOL))qmui_animationDidStopBlock { |
| 73 | + return (void (^)(__kindof CAAnimation *, BOOL))objc_getAssociatedObject(self, &kAssociatedObjectKey_animationDidStopBlock); |
| 74 | +} |
| 75 | + |
| 76 | +@end |
| 77 | + |
| 78 | +@implementation _QMUICAAnimationDelegator |
| 79 | + |
| 80 | +- (void)animationDidStart:(CAAnimation *)anim { |
| 81 | + if (anim.qmui_animationDidStartBlock) { |
| 82 | + anim.qmui_animationDidStartBlock(anim); |
| 83 | + } |
| 84 | +} |
| 85 | + |
| 86 | +- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag { |
| 87 | + if (anim.qmui_animationDidStopBlock) { |
| 88 | + anim.qmui_animationDidStopBlock(anim, flag); |
| 89 | + } |
| 90 | +} |
| 91 | + |
| 92 | +@end |
0 commit comments