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			64 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Objective-C
		
	
			
		
		
	
	
			64 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Objective-C
		
	
| #import <Foundation/Foundation.h>
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| #import "NSTimer+Proxying.h"
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| #import <objc/runtime.h>
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| 
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| NS_ASSUME_NONNULL_BEGIN
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| 
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| @interface NSTimerProxy : NSObject
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| 
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| @property (nonatomic, weak) id target;
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| @property (nonatomic) SEL selector;
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| 
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| @end
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| 
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| @implementation NSTimerProxy
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| 
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| - (void)timerFired:(NSDictionary *)userInfo
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| {
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| #pragma clang diagnostic push
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| #pragma clang diagnostic ignored "-Warc-performSelector-leaks"
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|     [self.target performSelector:self.selector withObject:userInfo];
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| #pragma clang diagnostic pop
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| }
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| 
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| @end
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| 
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| static void *kNSTimer_SN_Proxy = &kNSTimer_SN_Proxy;
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| 
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| @implementation NSTimer (Session)
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| 
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| - (NSTimerProxy *)sn_proxy
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| {
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|     return objc_getAssociatedObject(self, kNSTimer_SN_Proxy);
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| }
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| 
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| - (void)sn_setProxy:(NSTimerProxy *)proxy
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| {
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|     #if DEBUG
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|     assert(proxy != nil);
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|     #endif
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|     objc_setAssociatedObject(self, kNSTimer_SN_Proxy, proxy, OBJC_ASSOCIATION_RETAIN);
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| }
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| 
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| + (NSTimer *)weakScheduledTimerWithTimeInterval:(NSTimeInterval)timeInterval
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|                                          target:(id)target
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|                                        selector:(SEL)selector
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|                                        userInfo:(nullable id)userInfo
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|                                         repeats:(BOOL)repeats
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| {
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|     NSTimerProxy *proxy = [NSTimerProxy new];
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|     proxy.target = target;
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|     proxy.selector = selector;
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|     NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:timeInterval
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|                                                       target:proxy
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|                                                     selector:@selector(timerFired:)
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|                                                     userInfo:userInfo
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|                                                      repeats:repeats];
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|     [timer sn_setProxy:proxy];
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|     return timer;
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| }
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| 
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| @end
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| 
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| NS_ASSUME_NONNULL_END
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