iOSUIGestureRecgonizer自动化点击埋点

项目中很多情况下视图的点击点是通过UITapGestureRecognizer 来实现的，这个时候我们就也是可以支持自动化埋点的 思路如下： 通过运行时hook UITapgestureRecognizer的addTarget:action: 方法 和initWithTarget:action: 方法，在交换的方法中添加埋点的响应方法， 并保留原始的响应方法，在埋点响应方法中执行埋点方法，然后调用原来的响应

直接上代码，

@interface UIGestureRecognizer (Event) @property (nonatomic, strong) NSString *actionName; #pragma mark - Private @property (nonatomic, strong) NSString *senderAction; @end // // UIGestureRecognizer+Event.m // TEXT // // Created by mac on 2025/3/2. // Copyright © 2025 刘博. All rights reserved. // #import "UIGestureRecognizer+Event.h" #import "NSObject+Swizzle.h" static const void *monitorActionNameKey = "monitorActionNameKey"; static const void *KSenderAction = "KSenderAction"; static const char *KTargetActionPair = "KTargetActionPair"; @implementation UIGestureRecognizer (Event) + (void)load { [NSObject exchangeInstanceMethod:[self class] originalSel:@selector(addTarget:action:) swizzledSel:@selector(log_addTarget:action:)]; [NSObject exchangeInstanceMethod:[self class] originalSel:@selector(initWithTarget:action:) swizzledSel:@selector(initWithLogTarget:action:)]; } - (void)log_addTarget:(id)target action:(SEL)action { //只记录点击事件 if ([self isKindOfClass:[UITapGestureRecognizer class]]) { // 原因：UIWebView init时，系统API内部触发UIKit`-[UIWebBrowserView installGestureRecognizers]: // 过滤部分系统私有手势 NSString *targetClsStr = NSStringFromClass([target class]); NSString *gesClsStr = NSStringFromClass([self class]); if(target && ( [targetClsStr hasPrefix:@"UIWeb"] || [gesClsStr hasPrefix:@"_UI"] || [gesClsStr hasPrefix:@"WKSynthetic"] || [gesClsStr hasPrefix:@"UIKB"])) { [self log_addTarget:target action:action]; return; } NSMapTable *targetActions = [self targetActionPair]; if (targetActions == nil ) { targetActions = [NSMapTable mapTableWithKeyOptions:NSPointerFunctionsStrongMemory valueOptions:NSPointerFunctionsWeakMemory]; [self setTargetActionPair:targetActions]; } [targetActions setObject:target forKey:NSStringFromSelector(action)]; [self log_addTarget:self action:@selector(logAction:)]; //先记录action [self setSenderAction:NSStringFromSelector(action)]; }else{ [self log_addTarget:target action:action]; } } - (void)logAction:(UIGestureRecognizer *) sender { UIView *view = self.view; //执行埋点操作 NSLog(@"哈哈哈手势点击埋点了手势点击埋点了手势点击埋点了"); [self callOriginActions]; } - (void)callOriginActions { NSMapTable *targetActions = [[self targetActionPair] copy]; NSEnumerator *enumerator = [targetActions keyEnumerator]; id selector; while ((selector = [enumerator nextObject])) { id target = [targetActions objectForKey:selector]; if (target != nil) { SEL s = NSSelectorFromString(selector); IMP imp = [target methodForSelector:s]; void (*func)(id, SEL,id) = (void *)imp; func(target, s, self); } } } - (id)initWithLogTarget:(id)target action:(SEL)action { self = [self initWithLogTarget:nil action:NULL]; if (self) { [self addTarget:target action:action]; } return self; } - (NSString *)actionName { return objc_getAssociatedObject(self, monitorActionNameKey); } - (void)setActionName:(NSString *)monitorActionName{ objc_setAssociatedObject(self, monitorActionNameKey, monitorActionName, OBJC_ASSOCIATION_RETAIN_NONATOMIC); } - (NSString *)senderAction { return objc_getAssociatedObject(self, KSenderAction); } - (void)setSenderAction:(NSString *)senderAction{ objc_setAssociatedObject(self, KSenderAction, senderAction, OBJC_ASSOCIATION_RETAIN_NONATOMIC); } -(void)setTargetActionPair:(NSMapTable *)targetActionPair { objc_setAssociatedObject(self, KTargetActionPair, targetActionPair, OBJC_ASSOCIATION_RETAIN); } -(NSMapTable*)targetActionPair { return objc_getAssociatedObject(self, KTargetActionPair); } @end