xcode的NSLog打印中文和打印不全问题处理

1. 打印不全,使用如下宏,打印时,调用CRLog即可

#ifdef DEBUG
//# define CRLog(fmt, ...) NSLog((@"[文件名:%s]\n" "[函数名:%s]\n" "[行号:%d] \n" fmt), __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__);
# define CRLog(fmt, ...) NSLog((@"[函数名:%s]" "[行号:%d] \n" fmt), __FUNCTION__, __LINE__, ##__VA_ARGS__);
#else
# define CRLog(...)
#endif

/**
*  完美解决Xcode NSLog打印不全的宏
*/
#ifdef DEBUG
#define NSLog(FORMAT, ...) {\
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];\
[dateFormatter setDateStyle:NSDateFormatterMediumStyle];\
[dateFormatter setTimeStyle:NSDateFormatterShortStyle];\
NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Asia/Beijing"];\
[dateFormatter setTimeZone:timeZone];\
[dateFormatter setDateFormat:@"HH:mm:ss.SSSSSSZ"];\
NSString *str = [dateFormatter stringFromDate:[NSDate date]];\
fprintf(stderr,"--TIME：%s【FILE：%s--LINE：%d】FUNCTION：%s\n%s\n",[str UTF8String],[[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String], __LINE__,__PRETTY_FUNCTION__,[[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);\
}
#else
# define NSLog(...);
#endif

2. 打印中文时,显示的是Unicode,把Unicode转中文的方法是在工程中导入如下两个类(+load方法中,不需要引用)

//
//  LYLUnicode.h
//
//  blog : http://blog.csdn.net/biggercoffee
//  github : https://github.com/biggercoffee/LYLUnicode
//
//  Created by Mango on 2017/3/31.
//  Copyright © 2017年 coffee. All rights reserved.
//

#import <Foundation/Foundation.h>


//
//  LYLUnicode.m
//
//  blog : http://blog.csdn.net/biggercoffee
//  github : https://github.com/allencelee/LYLUnicode
//
//  Created by Mango on 2017/3/31.
//  Copyright © 2017年 coffee. All rights reserved.
//

#import "LYLUnicode.h"
#import <objc/runtime.h>

static inline void LYL_swizzleSelector(Class class, SEL originalSelector, SEL swizzledSelector) {
    Method originalMethod = class_getInstanceMethod(class, originalSelector);
    Method swizzledMethod = class_getInstanceMethod(class, swizzledSelector);
    if (class_addMethod(class, originalSelector, method_getImplementation(swizzledMethod), method_getTypeEncoding(swizzledMethod))) {
        class_replaceMethod(class, swizzledSelector, method_getImplementation(originalMethod), method_getTypeEncoding(originalMethod));
    } else {
        method_exchangeImplementations(originalMethod, swizzledMethod);
    }
}

@implementation NSString (LYLUnicode)

- (NSString *)stringByReplaceUnicode {
    NSMutableString *convertedString = [self 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;
}

@end

@implementation NSArray (LYLUnicode)

+ (void)load {
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        Class class = [self class];
        LYL_swizzleSelector(class, @selector(description), @selector(LYL_description));
        LYL_swizzleSelector(class, @selector(descriptionWithLocale:), @selector(LYL_descriptionWithLocale:));
        LYL_swizzleSelector(class, @selector(descriptionWithLocale:indent:), @selector(LYL_descriptionWithLocale:indent:));
    });
}

/**
 *  我觉得 
 *  可以把以下的方法放到一个NSObject的category中
 *  然后在需要的类中进行swizzle
 *  但是又觉得这样太粗暴了。。。。
 */

- (NSString *)LYL_description {
    return [[self LYL_description] stringByReplaceUnicode];
}

- (NSString *)LYL_descriptionWithLocale:(nullable id)locale {
    return [[self LYL_descriptionWithLocale:locale] stringByReplaceUnicode];
}

- (NSString *)LYL_descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {
    return [[self LYL_descriptionWithLocale:locale indent:level] stringByReplaceUnicode];
}

@end

@implementation NSDictionary (LYLUnicode)

+ (void)load {
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        Class class = [self class];
        LYL_swizzleSelector(class, @selector(description), @selector(LYL_description));
        LYL_swizzleSelector(class, @selector(descriptionWithLocale:), @selector(LYL_descriptionWithLocale:));
        LYL_swizzleSelector(class, @selector(descriptionWithLocale:indent:), @selector(LYL_descriptionWithLocale:indent:));
    });
}

- (NSString *)LYL_description {
    return [[self LYL_description] stringByReplaceUnicode];
}

- (NSString *)LYL_descriptionWithLocale:(nullable id)locale {
    return [[self LYL_descriptionWithLocale:locale] stringByReplaceUnicode];
}

- (NSString *)LYL_descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {
    return [[self LYL_descriptionWithLocale:locale indent:level] stringByReplaceUnicode];
}

@end

@implementation NSSet (LYLUnicode)

+ (void)load {
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        Class class = [self class];
        LYL_swizzleSelector(class, @selector(description), @selector(LYL_description));
        LYL_swizzleSelector(class, @selector(descriptionWithLocale:), @selector(LYL_descriptionWithLocale:));
        LYL_swizzleSelector(class, @selector(descriptionWithLocale:indent:), @selector(LYL_descriptionWithLocale:indent:));
    });
}

- (NSString *)LYL_description {
    return [[self LYL_description] stringByReplaceUnicode];
}

- (NSString *)LYL_descriptionWithLocale:(nullable id)locale {
    return [[self LYL_descriptionWithLocale:locale] stringByReplaceUnicode];
}

- (NSString *)LYL_descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {
    return [[self LYL_descriptionWithLocale:locale indent:level] stringByReplaceUnicode];
}

@end