找了些资料, 自己整理了一下, 代码如下:
#import <Foundation/Foundation.h> @interface NSArray (Foundation_Log) @end
#import "NSArray+Foundation_Log.h" #import <objc/runtime.h> #import <objc/message.h> @implementation NSArray (Foundation_Log) #if DEBUG - (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level { NSMutableString *desc = [NSMutableString string]; NSMutableString *tabString = [[NSMutableString alloc] initWithCapacity:level]; for (NSUInteger i = 0; i < level; ++i) { [tabString appendString:@" "]; } NSString *tab = @""; if (level > 0) { tab = tabString; } [desc appendString:@" ( "]; for (id obj in self) { if (![obj respondsToSelector:@selector(description)]) { continue; } if ([obj isKindOfClass:[NSDictionary class]] || [obj isKindOfClass:[NSArray class]] || [obj isKindOfClass:[NSSet class]]) { NSString *str = [((NSDictionary *)obj) descriptionWithLocale:locale indent:level + 1]; [desc appendFormat:@"%@ %@, ", tab, str]; } else if ([obj isKindOfClass:[NSString class]]) { [desc appendFormat:@"%@ "%@", ", tab, obj]; } else if ([obj isKindOfClass:[NSData class]]) { // 如果是NSData类型，尝试去解析结果，以打印出可阅读的数据 NSError *error = nil; NSObject *result = [NSJSONSerialization JSONObjectWithData:obj options:NSJSONReadingMutableContainers error:&error]; // 解析成功 if (error == nil && result != nil) { if ([result isKindOfClass:[NSDictionary class]] || [result isKindOfClass:[NSArray class]] || [result isKindOfClass:[NSSet class]]) { NSString *str = [((NSDictionary *)result) descriptionWithLocale:locale indent:level + 1]; [desc appendFormat:@"%@ %@, ", tab, str]; } else if ([obj isKindOfClass:[NSString class]]) { [desc appendFormat:@"%@ "%@", ", tab, result]; } } else { @try {
NSString *str = [[NSString alloc] initWithData:obj encoding:NSUTF8StringEncoding];
if (str != nil) { [desc appendFormat:@"%@ "%@", ", tab, str]; } else { [desc appendFormat:@"%@ %@, ", tab, obj]; } } @catch (NSException *exception) { [desc appendFormat:@"%@ %@, ", tab, obj]; } } } else { @try { [desc appendFormat:@"%@ %@, ", tab, obj]; } @catch (NSException *exception) { } @finally { } } } [desc appendFormat:@"%@)", tab]; return desc; } #endif @end
@implementation NSDictionary (Foundation_Log) #if DEBUG - (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level { NSMutableString *desc = [NSMutableString string]; NSMutableString *tabString = [[NSMutableString alloc] initWithCapacity:level];
for (NSUInteger i = 0; i < level; ++i) { [tabString appendString:@" "]; } NSString *tab = @""; if (level > 0) { tab = tabString; } [desc appendString:@" { "]; // 遍历数组,self就是当前的数组 for (id key in self.allKeys) { id obj = [self objectForKey:key]; if (![obj respondsToSelector:@selector(description)]) { continue; } if ([obj isKindOfClass:[NSString class]]) { [desc appendFormat:@"%@ %@ = "%@", ", tab, key, obj]; } else if ([obj isKindOfClass:[NSArray class]] || [obj isKindOfClass:[NSDictionary class]] || [obj isKindOfClass:[NSSet class]]) { [desc appendFormat:@"%@ %@ = %@, ", tab, key, [obj descriptionWithLocale:locale indent:level + 1]]; } else if ([obj isKindOfClass:[NSData class]]) { // 如果是NSData类型，尝试去解析结果，以打印出可阅读的数据 NSError *error = nil; NSObject *result = [NSJSONSerialization JSONObjectWithData:obj options:NSJSONReadingMutableContainers error:&error]; // 解析成功 if (error == nil && result != nil) { if ([result isKindOfClass:[NSDictionary class]] || [result isKindOfClass:[NSArray class]] || [result isKindOfClass:[NSSet class]]) { NSString *str = [((NSDictionary *)result) descriptionWithLocale:locale indent:level + 1]; [desc appendFormat:@"%@ %@ = %@, ", tab, key, str]; } else if ([obj isKindOfClass:[NSString class]]) { [desc appendFormat:@"%@ %@ = "%@", ", tab, key, result]; } } else { @try { NSString *str = [[NSString alloc] initWithData:obj encoding:NSUTF8StringEncoding]; if (str != nil) { [desc appendFormat:@"%@ %@ = "%@", ", tab, key, str]; } else { [desc appendFormat:@"%@ %@ = %@, ", tab, key, obj]; } } @catch (NSException *exception) { [desc appendFormat:@"%@ %@ = %@, ", tab, key, obj]; } } } else { @try { [desc appendFormat:@"%@ %@ = %@, ", tab, key, obj]; } @catch (NSException *exception) { } @finally { } } } [desc appendFormat:@"%@}", tab]; return desc; } #endif @end
@implementation NSSet (Foundation_Log) #if DEBUG - (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level { NSMutableString *desc = [NSMutableString string]; NSMutableString *tabString = [[NSMutableString alloc] initWithCapacity:level]; for (NSUInteger i = 0; i < level; ++i) { [tabString appendString:@" "]; } NSString *tab = @" "; if (level > 0) { tab = tabString; }
[desc appendString:@" {( "];
for (id obj in self) { if (![obj respondsToSelector:@selector(description)]) { continue; }
if ([obj isKindOfClass:[NSDictionary class]] || [obj isKindOfClass:[NSArray class]] || [obj isKindOfClass:[NSSet class]]) { NSString *str = [((NSDictionary *)obj) descriptionWithLocale:locale indent:level + 1]; [desc appendFormat:@"%@ %@, ", tab, str]; } else if ([obj isKindOfClass:[NSString class]]) { [desc appendFormat:@"%@ "%@", ", tab, obj]; } else if ([obj isKindOfClass:[NSData class]]) { // 如果是NSData类型，尝试去解析结果，以打印出可阅读的数据 NSError *error = nil; NSObject *result = [NSJSONSerialization JSONObjectWithData:obj options:NSJSONReadingMutableContainers error:&error]; // 解析成功 if (error == nil && result != nil) { if ([result isKindOfClass:[NSDictionary class]] || [result isKindOfClass:[NSArray class]] || [result isKindOfClass:[NSSet class]]) { NSString *str = [((NSDictionary *)result) descriptionWithLocale:locale indent:level + 1]; [desc appendFormat:@"%@ %@, ", tab, str]; } else if ([obj isKindOfClass:[NSString class]]) { [desc appendFormat:@"%@ "%@", ", tab, result]; } } else { @try { NSString *str = [[NSString alloc] initWithData:obj encoding:NSUTF8StringEncoding]; if (str != nil) { [desc appendFormat:@"%@ "%@", ", tab, str]; } else { [desc appendFormat:@"%@ %@, ", tab, obj]; } } @catch (NSException *exception) { [desc appendFormat:@"%@ %@, ", tab, obj]; } } } else { @try { [desc appendFormat:@"%@ %@, ", tab, obj]; } @catch (NSException *exception) { } @finally { } } } [desc appendFormat:@"%@)}", tab]; return desc; } #endif @end
@implementation NSObject (Foundation_Log) - (NSString *)description { NSMutableDictionary *debugInfos = [NSMutableDictionary dictionary]; unsigned int count = 0; Ivar *ivars = class_copyIvarList(self.class, &count); for (unsigned int i = 0; i < count; ++i) { Ivar ivar = ivars[i]; const char *name = ivar_getName(ivar); NSString *ivarName = [NSString stringWithUTF8String:name]; NSString *propertyName = ivarName; if ([propertyName hasPrefix:@"_"]) { propertyName = [propertyName substringFromIndex:1]; } const char *type = ivar_getTypeEncoding(ivar); NSString *typeEncoding = [NSString stringWithUTF8String:type]; id value = nil; // object if ([typeEncoding rangeOfString:@"@"].location != NSNotFound) { value = ((id (*)(id, SEL))objc_msgSend)((id)self, NSSelectorFromString(propertyName)); } else if ([typeEncoding rangeOfString:@"*"].location != NSNotFound) { char *v = ((char * (*)(id, SEL))objc_msgSend)((id)self, NSSelectorFromString(propertyName)); value = [NSString stringWithUTF8String:v]; } else if ([typeEncoding rangeOfString:@"#"].location != NSNotFound) { value = propertyName; } else if ([typeEncoding rangeOfString:@"^"].location != NSNotFound) { value = @"基本C指针"; } else { @try { value = [self valueForKey:propertyName]; } @catch (NSException *exception) { } @finally { } } value = value == nil ? @"<nil>" : value; [debugInfos setValue:value forKey:propertyName]; }
free(ivars);
return debugInfos.description; } - (NSString *)debugDescription { NSMutableDictionary *debugInfos = [NSMutableDictionary dictionary]; unsigned int count = 0; Ivar *ivars = class_copyIvarList(self.class, &count); for (unsigned int i = 0; i < count; ++i) { Ivar ivar = ivars[i]; const char *name = ivar_getName(ivar); NSString *ivarName = [NSString stringWithUTF8String:name]; } free(ivars); return debugInfos.debugDescription; } @end