替换Xcode打印日志中的unicode为中文

debugging.m

#if DEBUG

#import <Foundation/Foundation.h>
#import <objc/runtime.h>

@implementation NSObject (DEBUGGING)

+ (void)replaceClassMethodWithClass: (Class)clazz originMethod: (SEL)originMethodSEL withMethod: (SEL)newMethodSEL
{
    Method originMethod = class_getInstanceMethod(clazz, originMethodSEL);
    Method newMethod = class_getInstanceMethod(clazz, newMethodSEL);
    method_exchangeImplementations(originMethod, newMethod);
}

@end

@implementation NSString (DEBUGGING)

//http://stackoverflow.com/questions/2099349/using-objective-c-cocoa-to-unescape-unicode-characters-ie-u1234?lq=1
+ (NSString*) stringByReplaceUnicode:(NSString*)string
{
    NSMutableString * convertedString = [[string mutableCopy] autorelease];
    [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 NSDictionary (DEBUGING)

+ (void)load
{
    [self replaceClassMethodWithClass:[NSDictionary class] originMethod:@selector(description) withMethod:@selector(Exchangeddescription)];
    [self replaceClassMethodWithClass:[NSDictionary class] originMethod:@selector(descriptionWithLocale:) withMethod:@selector(ExchangeddescriptionWithLocale:)];
    [self replaceClassMethodWithClass:[NSDictionary class] originMethod:@selector(descriptionWithLocale:indent:) withMethod:@selector(ExchangeddescriptionWithLocale:indent:)];
}

- (NSString *)Exchangeddescription
{
    NSString * description = [self Exchangeddescription];
    description = [NSString stringByReplaceUnicode:description];
    return description;
}

- (NSString *)ExchangeddescriptionWithLocale:(id)locale
{
    NSString * description = [self ExchangeddescriptionWithLocale:locale];
    description = [NSString stringByReplaceUnicode:description];
    return description;
}

- (NSString *)ExchangeddescriptionWithLocale:(id)locale indent:(NSUInteger)level
{
    NSString * description = [self ExchangeddescriptionWithLocale:locale indent:level];
    description = [NSString stringByReplaceUnicode:description];
    return description;
}

@end

@implementation NSArray (DEBUGGING)

+ (void)load
{
    [self replaceClassMethodWithClass:[NSArray class] originMethod:@selector(description) withMethod:@selector(Exchangeddescription)];
    [self replaceClassMethodWithClass:[NSArray class] originMethod:@selector(descriptionWithLocale:) withMethod:@selector(ExchangeddescriptionWithLocale:)];
    [self replaceClassMethodWithClass:[NSArray class] originMethod:@selector(descriptionWithLocale:indent:) withMethod:@selector(ExchangeddescriptionWithLocale:indent:)];
}

- (NSString *)Exchangeddescription
{
    NSString * description = [self Exchangeddescription];
    description = [NSString stringByReplaceUnicode:description];
    return description;
}

- (NSString *)ExchangeddescriptionWithLocale:(id)locale
{
    NSString * description = [self ExchangeddescriptionWithLocale:locale];
    description = [NSString stringByReplaceUnicode:description];
    return description;
}

- (NSString *)ExchangeddescriptionWithLocale:(id)locale indent:(NSUInteger)level
{
    NSString * description = [self ExchangeddescriptionWithLocale:locale indent:level];
    description = [NSString stringByReplaceUnicode:description];
    return description;
}

@end

@implementation NSSet (DEBUGGING)

+ (void)load
{
    [self replaceClassMethodWithClass:[NSSet class] originMethod:@selector(description) withMethod:@selector(Exchangeddescription)];
    [self replaceClassMethodWithClass:[NSSet class] originMethod:@selector(descriptionWithLocale:) withMethod:@selector(ExchangeddescriptionWithLocale:)];
}

- (NSString *)Exchangeddescription
{
    NSString * description = [self Exchangeddescription];
    description = [NSString stringByReplaceUnicode:description];
    return description;
}

- (NSString *)ExchangeddescriptionWithLocale:(id)locale
{
    NSString * description = [self ExchangeddescriptionWithLocale:locale];
    description = [NSString stringByReplaceUnicode:description];
    return description;
}

@end

#endif

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