{"id":13695868,"url":"https://github.com/qhd/ANYMethodLog","last_synced_at":"2025-05-03T13:33:43.362Z","repository":{"id":48159503,"uuid":"79317586","full_name":"qhd/ANYMethodLog","owner":"qhd","description":"Log any method call of object in 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ANYMethodLog - log any method call of object in Objective-C  \n[English](../master/readme-en.md)\n\n\n打印 Objective-C 对象中的任何方法  \n\n![running show](Documentation/Images/running_show.gif)\n  \n## 调用说明:  \n\n```objective-c\n+ (void)logMethodWithClass:(Class)aClass\n                 condition:(BOOL(^)(SEL sel)) condition\n                    before:(void(^)(id target, SEL sel, NSArray *args, int deep)) before\n                     after:(void(^)(id target, SEL sel, NSArray *args, NSTimeInterval interval, int deep, id retValue)) after;\n```\n\naClass：要打印的类\n\ncondition：根据此 block 来决定是否追踪方法（sel 是方法名）\n\nbefore：方法调用前会调用该 block（target 是检测的对象，sel 是方法名，args 是参数列表，deep 是调用层级）\n\nafter：方法调用后会调用该 block（interval 是执行方法的耗时，retValue 是返回值）\n\n## 功能：\n1.打印一个类定义的所有方法，包括公开方法和私有方法：  \n\n```objective-c\n[ANYMethodLog logMethodWithClass:[UIViewController class] condition:^BOOL(SEL sel) {\n    NSLog(@\"method:%@\", NSStringFromSelector(sel));\n    return NO;\n} before:nil after:nil];\n```\n\n2.打印在运行过程中调用了哪些方法：  \n\n```objective-c\n[ANYMethodLog logMethodWithClass:[UIViewController class] condition:^BOOL(SEL sel) {\n    return YES;\n} before:^(id target, SEL sel, NSArray *args, int deep) {\n    NSLog(@\"target:%@ sel:%@\", target, NSStringFromSelector(sel));\n} after:nil];\n```\n\n3.打印特定几个方法的调用顺序：  \n\n```objective-c\n[ANYMethodLog logMethodWithClass:[UIViewController class] condition:^BOOL(SEL sel) {\n    \n    NSArray *whiteList = @[@\"loadView\", @\"viewWillAppear:\", @\"viewDidAppear:\", @\"viewWillDisappear:\", @\"viewDidDisappear:\", @\"viewWillLayoutSubviews\", @\"viewDidLayoutSubviews\"];\n    return [whiteList containsObject:NSStringFromSelector(sel)];\n    \n} before:^(id target, SEL sel, NSArray *args, int deep) {\n    \n    NSLog(@\"target:%@ sel:%@\", target, NSStringFromSelector(sel));\n    \n} after:nil];\n```\n\n4.打印调用方法时的参数值：  \n\n```objective-c\n[ANYMethodLog logMethodWithClass:NSClassFromString(@\"UIViewController\") condition:^BOOL(SEL sel) {\n    \n    return [NSStringFromSelector(sel) isEqualToString:@\"viewWillAppear:\"];\n\n} before:^(id target, SEL sel, NSArray *args, int deep) {\n\n    NSLog(@\"before target:%@ sel:%@ args:%@\", target, NSStringFromSelector(sel), args);\n\n} after:nil];\n```\n\n5.打印某个方法调用前后的变化：  \n\n```objective-c\n[ANYMethodLog logMethodWithClass:NSClassFromString(@\"ListController\") condition:^BOOL(SEL sel) {\n\n    return [NSStringFromSelector(sel) isEqualToString:@\"changeBackground\"];\n\n} before:^(id target, SEL sel, NSArray *args, int deep) {\n\n    NSLog(@\"before background color:%@\", [(ListController *)target view].backgroundColor);\n\n} after:^(id target, SEL sel, NSArray *args, NSTimeInterval interval, int deep, id retValue) {\n    \n    NSLog(@\"after background color:%@\", [(ListController *)target view].backgroundColor);\n    \n}];\n```\n\n6.打印某个方法调用的耗时：  \n\n```objective-c\n[ANYMethodLog logMethodWithClass:NSClassFromString(@\"ListController\") condition:^BOOL(SEL sel) {\n    \n    return [NSStringFromSelector(sel) isEqualToString:@\"changeBackground\"];\n    \n} before:^(id target, SEL sel, NSArray *args, int deep) {\n    \n    \n} after:^(id target, SEL sel, NSArray *args, NSTimeInterval interval, int deep, id retValue) {\n    \n    NSLog(@\"interval::%@\", [@(interval) stringValue]);\n    \n}];\n```\n\n7.追踪方法调用顺序： \n\n```objective-c\n[ANYMethodLog logMethodWithClass:NSClassFromString(@\"ListController\") condition:^BOOL(SEL sel) {\n    return  YES;\n} before:^(id target, SEL sel, NSArray *args, int deep) {\n    NSString *selector = NSStringFromSelector(sel);\n    NSArray *selectorArrary = [selector componentsSeparatedByString:@\":\"];\n    selectorArrary = [selectorArrary filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@\"length \u003e 0\"]];\n    NSMutableString *selectorString = [NSMutableString new];\n    for (int i = 0; i \u003c selectorArrary.count; i++) {\n        [selectorString appendFormat:@\"%@:%@ \", selectorArrary[i], args[i]];\n    }\n    NSMutableString *deepString = [NSMutableString new];\n    for (int i = 0; i \u003c deep; i++) {\n        [deepString appendString:@\"-\"];\n    }\n    NSLog(@\"%@[%@ %@]\", deepString , target, selectorString);\n} after:^(id target, SEL sel, NSArray *args, NSTimeInterval interval, int deep, id retValue) {\n    NSMutableString *deepString = [NSMutableString new];\n    for (int i = 0; i \u003c deep; i++) {\n        [deepString appendString:@\"-\"];\n    }\n    NSLog(@\"%@ret:%@\", deepString, retValue);\n}];\n```\n\n## TODO：  \n\n+ 解决真机上运行出现的问题。 (已完成)  \n+ 打印调用时的参数值。 (已完成)  \n+ 打印返回值。 (已完成)  \n+ 计算某个方法的耗时。 (已完成)  \n\n## 原理：  \n\n\u003cdel\u003e利用runtime交换方法的实现。动态创建新方法，在新方法里再调用原来的方法。现阶段还不是很完美地调用原来方法，在需要传参的方法会出现传参失败，在真机问题较多，在模拟器问题较少，在用的时候可以过滤掉需要传参的方法。\u003c/del\u003e\n\n1.把原方法的 `IMP` 换成 `_objc_msgForward` ，使之触发 `forwardInvocation` 方法；\n\n2.把方法 `forwardInvocation` 的 `IMP` 换成 `qhd_forwardInvocation` ；\n\n3.创建一个新方法，`IMP` 就是原方法的原来的 `IMP`，那么只要在 `qhd_forwardInvocation` 调用新方法即可。那么就可以在 `qhd_forwardInvocation` 插入 log 。\n\n欢迎提 Issues 和 Pull requests\n\n","funding_links":[],"categories":["Tools"],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fqhd%2FANYMethodLog","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fqhd%2FANYMethodLog","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fqhd%2FANYMethodLog/lists"}