xcode 10以后的方法，一般使用
#ifdef DEBUG #define NSLog(FORMAT, ...) fprintf(stderr,"\n %s:%d %s\n",[[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String],__LINE__, [[[NSString alloc] initWithData:[[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] dataUsingEncoding:NSUTF8StringEncoding] encoding:NSNonLossyASCIIStringEncoding] UTF8String]); #else #define NSLog(...) #endif
xcode 10以前的是方法一般重写NSArray的descriptionWithLocale 方法
//
// NSDictionary+CBLog.m
// CaiBao
//
// Created by cb_2018 on 2019/2/21.
// Copyright © 2019 91cb. All rights reserved.
//
#import "NSDictionary+CBLog.h"
#import <objc/runtime.h>
@implementation NSDictionary (CBLog)
#ifdef DEBUG
+ (void)load
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
zx_swizzleSelector([self class], @selector(descriptionWithLocale:indent:), @selector(zx_descriptionWithLocale:indent:));
});
}
- (NSString *)zx_descriptionWithLocale:(id)locale indent:(NSUInteger)level
{
return [self stringByReplaceUnicode:[self zx_descriptionWithLocale:locale indent:level]];
}
- (NSString *)stringByReplaceUnicode:(NSString *)unicodeString
{
NSMutableString *convertedString = [unicodeString mutableCopy];
[convertedString replaceOccurrencesOfString:@"\\U" withString:@"\\u" options:0 range:NSMakeRange(0, convertedString.length)];
CFStringRef transform = CFSTR("Any-Hex/Java");
CFStringTransform((__bridge CFMutableStringRef)convertedString, NULL, transform, YES);
return convertedString;
}
static inline void zx_swizzleSelector(Class theClass, SEL originalSelector, SEL swizzledSelector)
{
Method originalMethod = class_getInstanceMethod(theClass, originalSelector);
Method swizzledMethod = class_getInstanceMethod(theClass, swizzledSelector);
BOOL didAddMethod =
class_addMethod(theClass,
originalSelector,
method_getImplementation(swizzledMethod),
method_getTypeEncoding(swizzledMethod));
if (didAddMethod) {
class_replaceMethod(theClass,
swizzledSelector,
method_getImplementation(originalMethod),
method_getTypeEncoding(originalMethod));
} else {
method_exchangeImplementations(originalMethod, swizzledMethod);
}
}
#endif
@end
//
// NSArray+CBLog.m
// CaiBao
//
// Created by cb_2018 on 2019/2/21.
// Copyright © 2019 91cb. All rights reserved.
//
#import "NSArray+CBLog.h"
@implementation NSArray (CBLog)
#ifdef DEBUG
- (NSString *)description {
return [self jl_descriptionWithLevel:1];
}
-(NSString *)descriptionWithLocale:(id)locale
{
return [self jl_descriptionWithLevel:1];
}
- (NSString *)descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {
return [self jl_descriptionWithLevel:(int)level];
}
/**
将数组转化成字符串，文字格式UTF8,并且格式化
@param level 当前数组的层级，最少为 1，代表最外层
@return 格式化的字符串
*/
- (NSString *)jl_descriptionWithLevel:(int)level {
NSString *subSpace = [self jl_getSpaceWithLevel:level];
NSString *space = [self jl_getSpaceWithLevel:level - 1];
NSMutableString *retString = [[NSMutableString alloc] init];
// 1、添加 [
[retString appendString:[NSString stringWithFormat:@"["]];
// 2、添加 value
[self enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:[NSString class]]) {
NSString *value = (NSString *)obj;
value = [value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *subString = [NSString stringWithFormat:@"\n%@\"%@\",", subSpace, value];
[retString appendString:subString];
} else if ([obj isKindOfClass:[NSArray class]]) {
NSArray *arr = (NSArray *)obj;
NSString *str = [arr jl_descriptionWithLevel:level + 1];
str = [NSString stringWithFormat:@"\n%@%@,", subSpace, str];
[retString appendString:str];
} else if ([obj isKindOfClass:[NSDictionary class]]) {
NSDictionary *dic = (NSDictionary *)obj;
NSString *str = [dic descriptionWithLocale:nil indent:level + 1];
str = [NSString stringWithFormat:@"\n%@%@,", subSpace, str];
[retString appendString:str];
} else {
NSString *subString = [NSString stringWithFormat:@"\n%@%@,", subSpace, obj];
[retString appendString:subString];
}
}];
if ([retString hasSuffix:@","]) {
[retString deleteCharactersInRange:NSMakeRange(retString.length-1, 1)];
}
// 3、添加 ]
[retString appendString:[NSString stringWithFormat:@"\n%@]", space]];
return retString;
}
/**
根据层级，返回前面的空格占位符
@param level 层级
@return 占位空格
*/
- (NSString *)jl_getSpaceWithLevel:(int)level {
NSMutableString *mustr = [[NSMutableString alloc] init];
for (int i=0; i<level; i++) {
[mustr appendString:@"\t"];
}
return mustr;
}
#endif
@end
原文地址：https://www.cnblogs.com/sundaysgarden/p/10412333.html
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